Remove unused #if 0'ed code

31 files changed, 38 insertions, 1416 deletions

diff --git a/drivers/gles2/rasterizer_scene_gles2.cpp b/drivers/gles2/rasterizer_scene_gles2.cpp
index 6b1574bbbd..a315684ce9 100644
--- a/drivers/gles2/rasterizer_scene_gles2.cpp
+++ b/drivers/gles2/rasterizer_scene_gles2.cpp
@@ -557,15 +557,16 @@ bool RasterizerSceneGLES2::reflection_probe_instance_begin_render(RID p_instance
 
 		glGenTextures(1, &rpi->cubemap);
 		glBindTexture(GL_TEXTURE_CUBE_MAP, rpi->cubemap);
-#if 1
-		//Mobile hardware (PowerVR specially) prefers this approach, the other one kills the game
+
+		// Mobile hardware (PowerVR specially) prefers this approach,
+		// the previous approach with manual lod levels kills the game.
 		for (int i = 0; i < 6; i++) {
 			glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, internal_format, size, size, 0, format, type, NULL);
 		}
 
 		glGenerateMipmap(GL_TEXTURE_CUBE_MAP);
 
-		//Generate framebuffers for rendering
+		// Generate framebuffers for rendering
 		for (int i = 0; i < 6; i++) {
 			glBindFramebuffer(GL_FRAMEBUFFER, rpi->fbo[i]);
 			glBindTexture(GL_TEXTURE_2D, rpi->color[i]);
@@ -576,34 +577,6 @@ bool RasterizerSceneGLES2::reflection_probe_instance_begin_render(RID p_instance
 			ERR_CONTINUE(status != GL_FRAMEBUFFER_COMPLETE);
 		}
 
-#else
-		int lod = 0;
-
-		//the approach below is fatal for powervr
-
-		// Set the initial (empty) mipmaps, all need to be set for this to work in GLES2, even if they won't be used later.
-		while (size >= 1) {
-
-			for (int i = 0; i < 6; i++) {
-				glTexImage2D(_cube_side_enum[i], lod, internal_format, size, size, 0, format, type, NULL);
-				if (size == rpi->current_resolution) {
-					//adjust framebuffer
-					glBindFramebuffer(GL_FRAMEBUFFER, rpi->fbo[i]);
-					glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, _cube_side_enum[i], rpi->cubemap, 0);
-					glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, rpi->depth);
-
-#ifdef DEBUG_ENABLED
-					GLenum status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
-					ERR_CONTINUE(status != GL_FRAMEBUFFER_COMPLETE);
-#endif
-				}
-			}
-
-			lod++;
-
-			size >>= 1;
-		}
-#endif
 		glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
 		glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 		glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
diff --git a/drivers/gles2/rasterizer_storage_gles2.cpp b/drivers/gles2/rasterizer_storage_gles2.cpp
index 7980c43517..c633d17cca 100644
--- a/drivers/gles2/rasterizer_storage_gles2.cpp
+++ b/drivers/gles2/rasterizer_storage_gles2.cpp
@@ -1206,32 +1206,21 @@ void RasterizerStorageGLES2::sky_set_texture(RID p_sky, RID p_panorama, int p_ra
 	GLenum type = GL_UNSIGNED_BYTE;
 
 	// Set the initial (empty) mipmaps
-#if 1
-	//Mobile hardware (PowerVR specially) prefers this approach, the other one kills the game
+	// Mobile hardware (PowerVR specially) prefers this approach,
+	// the previous approach with manual lod levels kills the game.
 	for (int i = 0; i < 6; i++) {
 		glTexImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, 0, internal_format, size, size, 0, format, type, NULL);
 	}
 
 	glGenerateMipmap(GL_TEXTURE_CUBE_MAP);
-	//no filters for now
+
+	// No filters for now
 	glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
 	glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 	glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
 	glTexParameterf(GL_TEXTURE_CUBE_MAP, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
 
-#else
-	while (size >= 1) {
-
-		for (int i = 0; i < 6; i++) {
-			glTexImage2D(_cube_side_enum[i], lod, internal_format, size, size, 0, format, type, NULL);
-		}
-
-		lod++;
-
-		size >>= 1;
-	}
-#endif
-	//framebuffer
+	// Framebuffer
 
 	glBindFramebuffer(GL_FRAMEBUFFER, resources.mipmap_blur_fbo);
 
diff --git a/drivers/gles3/rasterizer_gles3.cpp b/drivers/gles3/rasterizer_gles3.cpp
index ef2c318807..a24147146f 100644
--- a/drivers/gles3/rasterizer_gles3.cpp
+++ b/drivers/gles3/rasterizer_gles3.cpp
@@ -339,8 +339,6 @@ void RasterizerGLES3::blit_render_target_to_screen(RID p_render_target, const Re
 	RasterizerStorageGLES3::RenderTarget *rt = storage->render_target_owner.getornull(p_render_target);
 	ERR_FAIL_COND(!rt);
 
-#if 1
-
 	Size2 win_size = OS::get_singleton()->get_window_size();
 	if (rt->external.fbo != 0) {
 		glBindFramebuffer(GL_READ_FRAMEBUFFER, rt->external.fbo);
@@ -350,21 +348,6 @@ void RasterizerGLES3::blit_render_target_to_screen(RID p_render_target, const Re
 	glReadBuffer(GL_COLOR_ATTACHMENT0);
 	glBindFramebuffer(GL_DRAW_FRAMEBUFFER, RasterizerStorageGLES3::system_fbo);
 	glBlitFramebuffer(0, 0, rt->width, rt->height, p_screen_rect.position.x, win_size.height - p_screen_rect.position.y - p_screen_rect.size.height, p_screen_rect.position.x + p_screen_rect.size.width, win_size.height - p_screen_rect.position.y, GL_COLOR_BUFFER_BIT, GL_NEAREST);
-
-#else
-	canvas->canvas_begin();
-	glDisable(GL_BLEND);
-	glBindFramebuffer(GL_FRAMEBUFFER, RasterizerStorageGLES3::system_fbo);
-	glActiveTexture(GL_TEXTURE0);
-	glBindTexture(GL_TEXTURE_2D, rt->color);
-	//glBindTexture(GL_TEXTURE_2D, rt->effects.mip_maps[0].color);
-	glActiveTexture(GL_TEXTURE1);
-	glBindTexture(GL_TEXTURE_2D, storage->resources.normal_tex);
-
-	canvas->draw_generic_textured_rect(p_screen_rect, Rect2(0, 0, 1, -1));
-	glBindTexture(GL_TEXTURE_2D, 0);
-	canvas->canvas_end();
-#endif
 }
 
 void RasterizerGLES3::output_lens_distorted_to_screen(RID p_render_target, const Rect2 &p_screen_rect, float p_k1, float p_k2, const Vector2 &p_eye_center, float p_oversample) {
diff --git a/drivers/gles3/rasterizer_scene_gles3.cpp b/drivers/gles3/rasterizer_scene_gles3.cpp
index 0ed2637a11..c9ee2a18ef 100644
--- a/drivers/gles3/rasterizer_scene_gles3.cpp
+++ b/drivers/gles3/rasterizer_scene_gles3.cpp
@@ -1146,47 +1146,6 @@ bool RasterizerSceneGLES3::_setup_material(RasterizerStorageGLES3::Material *p_m
 		state.current_depth_draw = p_material->shader->spatial.depth_draw_mode;
 	}
 
-#if 0
-	//blend mode
-	if (state.current_blend_mode!=p_material->shader->spatial.blend_mode) {
-
-		switch(p_material->shader->spatial.blend_mode) {
-
-			 case RasterizerStorageGLES3::Shader::Spatial::BLEND_MODE_MIX: {
-				glBlendEquation(GL_FUNC_ADD);
-				if (storage->frame.current_rt->flags[RasterizerStorage::RENDER_TARGET_TRANSPARENT]) {
-					glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
-				} else {
-					glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-				}
-
-			 } break;
-			 case RasterizerStorageGLES3::Shader::Spatial::BLEND_MODE_ADD: {
-
-				glBlendEquation(GL_FUNC_ADD);
-				glBlendFunc(p_alpha_pass?GL_SRC_ALPHA:GL_ONE,GL_ONE);
-
-			 } break;
-			 case RasterizerStorageGLES3::Shader::Spatial::BLEND_MODE_SUB: {
-
-				glBlendEquation(GL_FUNC_REVERSE_SUBTRACT);
-				glBlendFunc(GL_SRC_ALPHA,GL_ONE);
-			 } break;
-			case RasterizerStorageGLES3::Shader::Spatial::BLEND_MODE_MUL: {
-				glBlendEquation(GL_FUNC_ADD);
-				if (storage->frame.current_rt->flags[RasterizerStorage::RENDER_TARGET_TRANSPARENT]) {
-					glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
-				} else {
-					glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-				}
-
-			} break;
-		}
-
-		state.current_blend_mode=p_material->shader->spatial.blend_mode;
-
-	}
-#endif
 	//material parameters
 
 	state.scene_shader.set_custom_shader(p_material->shader->custom_code_id);
@@ -3007,16 +2966,6 @@ void RasterizerSceneGLES3::_setup_lights(RID *p_light_cull_result, int p_light_c
 				li->light_index = state.spot_light_count;
 				copymem(&state.spot_array_tmp[li->light_index * state.ubo_light_size], &ubo_data, state.ubo_light_size);
 				state.spot_light_count++;
-
-#if 0
-				if (li->light_ptr->shadow_enabled) {
-					CameraMatrix bias;
-					bias.set_light_bias();
-					Transform modelview=Transform(camera_transform_inverse * li->transform).inverse();
-					li->shadow_projection[0] = bias * li->projection * modelview;
-					lights_use_shadow=true;
-				}
-#endif
 			} break;
 		}
 
diff --git a/drivers/gles3/shader_compiler_gles3.cpp b/drivers/gles3/shader_compiler_gles3.cpp
index 121a7f60f4..f43943bdff 100644
--- a/drivers/gles3/shader_compiler_gles3.cpp
+++ b/drivers/gles3/shader_compiler_gles3.cpp
@@ -400,7 +400,7 @@ String ShaderCompilerGLES3::_dump_node_code(SL::Node *p_node, int p_level, Gener
 			for (int i = 0; i < max_uniforms; i++) {
 				r_gen_code.uniforms += uniform_defines[i];
 			}
-#if 1
+
 			// add up
 			int offset = 0;
 			for (int i = 0; i < uniform_sizes.size(); i++) {
@@ -420,45 +420,6 @@ String ShaderCompilerGLES3::_dump_node_code(SL::Node *p_node, int p_level, Gener
 			if (r_gen_code.uniform_total_size % 16 != 0) { //UBO sizes must be multiples of 16
 				r_gen_code.uniform_total_size += r_gen_code.uniform_total_size % 16;
 			}
-#else
-			// add up
-			for (int i = 0; i < uniform_sizes.size(); i++) {
-
-				if (i > 0) {
-
-					int align = uniform_sizes[i - 1] % uniform_alignments[i];
-					if (align != 0) {
-						uniform_sizes[i - 1] += uniform_alignments[i] - align;
-					}
-
-					uniform_sizes[i] = uniform_sizes[i] + uniform_sizes[i - 1];
-				}
-			}
-			//offset
-			r_gen_code.uniform_offsets.resize(uniform_sizes.size());
-			for (int i = 0; i < uniform_sizes.size(); i++) {
-
-				if (i > 0)
-					r_gen_code.uniform_offsets[i] = uniform_sizes[i - 1];
-				else
-					r_gen_code.uniform_offsets[i] = 0;
-			}
-			/*
-			for(Map<StringName,SL::ShaderNode::Uniform>::Element *E=pnode->uniforms.front();E;E=E->next()) {
-
-				if (SL::is_sampler_type(E->get().type)) {
-					continue;
-				}
-
-			}
-
-*/
-			if (uniform_sizes.size()) {
-				r_gen_code.uniform_total_size = uniform_sizes[uniform_sizes.size() - 1];
-			} else {
-				r_gen_code.uniform_total_size = 0;
-			}
-#endif
 
 			for (Map<StringName, SL::ShaderNode::Varying>::Element *E = pnode->varyings.front(); E; E = E->next()) {
 
diff --git a/drivers/gles3/shaders/scene.glsl b/drivers/gles3/shaders/scene.glsl
index a330dbef77..a45ac2eb8a 100644
--- a/drivers/gles3/shaders/scene.glsl
+++ b/drivers/gles3/shaders/scene.glsl
@@ -1224,35 +1224,6 @@ in highp float dp_clip;
 
 #endif
 
-#if 0
-// need to save texture depth for this
-vec3 light_transmittance(float translucency,vec3 light_vec, vec3 normal, vec3 pos, float distance) {
-
-	float scale = 8.25 * (1.0 - translucency) / subsurface_scatter_width;
-	float d = scale * distance;
-
-	/**
-	* Armed with the thickness, we can now calculate the color by means of the
-	* precalculated transmittance profile.
-	* (It can be precomputed into a texture, for maximum performance):
-	*/
-	float dd = -d * d;
-	vec3 profile =
-			vec3(0.233, 0.455, 0.649) * exp(dd / 0.0064) +
-			vec3(0.1,   0.336, 0.344) * exp(dd / 0.0484) +
-			vec3(0.118, 0.198, 0.0)   * exp(dd / 0.187)  +
-			vec3(0.113, 0.007, 0.007) * exp(dd / 0.567)  +
-			vec3(0.358, 0.004, 0.0)   * exp(dd / 1.99)   +
-			vec3(0.078, 0.0,   0.0)   * exp(dd / 7.41);
-
-	/**
-	* Using the profile, we finally approximate the transmitted lighting from
-	* the back of the object:
-	*/
-	return profile * clamp(0.3 + dot(light_vec, normal),0.0,1.0);
-}
-#endif
-
 void light_process_omni(int idx, vec3 vertex, vec3 eye_vec, vec3 normal, vec3 binormal, vec3 tangent, vec3 albedo, vec3 transmission, float roughness, float metallic, float specular, float rim, float rim_tint, float clearcoat, float clearcoat_gloss, float anisotropy, float p_blob_intensity, inout vec3 diffuse_light, inout vec3 specular_light, inout float alpha) {
 
 	vec3 light_rel_vec = omni_lights[idx].light_pos_inv_radius.xyz - vertex;
diff --git a/editor/animation_bezier_editor.cpp b/editor/animation_bezier_editor.cpp
index 2514663b4c..af2760e82b 100644
--- a/editor/animation_bezier_editor.cpp
+++ b/editor/animation_bezier_editor.cpp
@@ -491,26 +491,6 @@ void AnimationBezierTrackEdit::_notification(int p_what) {
 			}
 			draw_rect(Rect2(bs_from, bs_to - bs_from), bs);
 		}
-
-#if 0
-		// KEYFAMES //
-
-		{
-
-			float scale = timeline->get_zoom_scale();
-			int limit_end = get_size().width - timeline->get_buttons_width();
-
-			for (int i = 0; i < animation->track_get_key_count(track); i++) {
-
-				float offset = animation->track_get_key_time(track, i) - timeline->get_value();
-				if (editor->is_key_selected(track, i) && editor->is_moving_selection()) {
-					offset += editor->get_moving_selection_offset();
-				}
-				offset = offset * scale + limit;
-				draw_key(i, scale, int(offset), editor->is_key_selected(track, i), limit, limit_end);
-			}
-		}
-#endif
 	}
 }
 
diff --git a/editor/animation_track_editor.cpp b/editor/animation_track_editor.cpp
index f6d5312fc7..22a5298d5c 100644
--- a/editor/animation_track_editor.cpp
+++ b/editor/animation_track_editor.cpp
@@ -4838,25 +4838,6 @@ struct _AnimMoveRestore {
 
 void AnimationTrackEditor::_clear_key_edit() {
 	if (key_edit) {
-
-#if 0
-		// going back seems like the most comfortable thing to do, but it results
-		// in weird behaviors and crashes, because going back to animation editor
-		// triggers the editor setting up again itself
-
-		bool go_back = false;
-		if (EditorNode::get_singleton()->get_inspector()->get_edited_object() == key_edit) {
-			EditorNode::get_singleton()->push_item(NULL);
-			go_back = true;
-		}
-
-		memdelete(key_edit);
-		key_edit = NULL;
-
-		if (go_back) {
-			EditorNode::get_singleton()->get_inspector_dock()->go_back();
-		}
-#else
 		//if key edit is the object being inspected, remove it first
 		if (EditorNode::get_singleton()->get_inspector()->get_edited_object() == key_edit ||
 				EditorNode::get_singleton()->get_inspector()->get_edited_object() == multi_key_edit) {
@@ -4871,7 +4852,6 @@ void AnimationTrackEditor::_clear_key_edit() {
 			memdelete(multi_key_edit);
 			multi_key_edit = NULL;
 		}
-#endif
 	}
 }
 
diff --git a/editor/import/resource_importer_scene.cpp b/editor/import/resource_importer_scene.cpp
index cab317990e..0774d0b5dc 100644
--- a/editor/import/resource_importer_scene.cpp
+++ b/editor/import/resource_importer_scene.cpp
@@ -32,18 +32,15 @@
 
 #include "core/io/resource_saver.h"
 #include "editor/editor_node.h"
-#include "scene/resources/packed_scene.h"
-
 #include "scene/3d/collision_shape.h"
 #include "scene/3d/mesh_instance.h"
 #include "scene/3d/navigation.h"
 #include "scene/3d/physics_body.h"
-#include "scene/3d/portal.h"
-#include "scene/3d/room_instance.h"
 #include "scene/3d/vehicle_body.h"
 #include "scene/animation/animation_player.h"
 #include "scene/resources/animation.h"
 #include "scene/resources/box_shape.h"
+#include "scene/resources/packed_scene.h"
 #include "scene/resources/plane_shape.h"
 #include "scene/resources/ray_shape.h"
 #include "scene/resources/resource_format_text.h"
diff --git a/editor/plugins/sprite_editor_plugin.cpp b/editor/plugins/sprite_editor_plugin.cpp
index f5ea88eeae..6757b180a3 100644
--- a/editor/plugins/sprite_editor_plugin.cpp
+++ b/editor/plugins/sprite_editor_plugin.cpp
@@ -474,69 +474,6 @@ void SpriteEditor::_add_as_sibling_or_child(Node *p_own_node, Node *p_new_node)
 	p_new_node->set_owner(this->get_tree()->get_edited_scene_root());
 }
 
-#if 0
-void SpriteEditor::_create_uv_lines() {
-
-	Ref<Mesh> sprite = node->get_sprite();
-	ERR_FAIL_COND(!sprite.is_valid());
-
-	Set<SpriteEditorEdgeSort> edges;
-	uv_lines.clear();
-	for (int i = 0; i < sprite->get_surface_count(); i++) {
-		if (sprite->surface_get_primitive_type(i) != Mesh::PRIMITIVE_TRIANGLES)
-			continue;
-		Array a = sprite->surface_get_arrays(i);
-
-		PoolVector<Vector2> uv = a[p_layer == 0 ? Mesh::ARRAY_TEX_UV : Mesh::ARRAY_TEX_UV2];
-		if (uv.size() == 0) {
-			err_dialog->set_text(TTR("Model has no UV in this layer"));
-			err_dialog->popup_centered_minsize();
-			return;
-		}
-
-		PoolVector<Vector2>::Read r = uv.read();
-
-		PoolVector<int> indices = a[Mesh::ARRAY_INDEX];
-		PoolVector<int>::Read ri;
-
-		int ic;
-		bool use_indices;
-
-		if (indices.size()) {
-			ic = indices.size();
-			ri = indices.read();
-			use_indices = true;
-		} else {
-			ic = uv.size();
-			use_indices = false;
-		}
-
-		for (int j = 0; j < ic; j += 3) {
-
-			for (int k = 0; k < 3; k++) {
-
-				SpriteEditorEdgeSort edge;
-				if (use_indices) {
-					edge.a = r[ri[j + k]];
-					edge.b = r[ri[j + ((k + 1) % 3)]];
-				} else {
-					edge.a = r[j + k];
-					edge.b = r[j + ((k + 1) % 3)];
-				}
-
-				if (edges.has(edge))
-					continue;
-
-				uv_lines.push_back(edge.a);
-				uv_lines.push_back(edge.b);
-				edges.insert(edge);
-			}
-		}
-	}
-
-	debug_uv_dialog->popup_centered_minsize();
-}
-#endif
 void SpriteEditor::_debug_uv_draw() {
 
 	Ref<Texture> tex = node->get_texture();
diff --git a/editor/spatial_editor_gizmos.cpp b/editor/spatial_editor_gizmos.cpp
index 418ff1d2a3..c94b0eeab0 100644
--- a/editor/spatial_editor_gizmos.cpp
+++ b/editor/spatial_editor_gizmos.cpp
@@ -44,11 +44,9 @@
 #include "scene/3d/navigation_mesh.h"
 #include "scene/3d/particles.h"
 #include "scene/3d/physics_joint.h"
-#include "scene/3d/portal.h"
 #include "scene/3d/position_3d.h"
 #include "scene/3d/ray_cast.h"
 #include "scene/3d/reflection_probe.h"
-#include "scene/3d/room_instance.h"
 #include "scene/3d/soft_body.h"
 #include "scene/3d/spring_arm.h"
 #include "scene/3d/sprite_3d.h"
@@ -1951,112 +1949,6 @@ void PhysicalBoneSpatialGizmoPlugin::redraw(EditorSpatialGizmo *p_gizmo) {
 	p_gizmo->add_lines(points, material);
 }
 
-// FIXME: Kept as reference for reimplementation in 3.1+
-#if 0
-
-void RoomSpatialGizmo::redraw() {
-
-	clear();
-	Ref<RoomBounds> roomie = room->get_room();
-	if (roomie.is_null())
-		return;
-	PoolVector<Face3> faces = roomie->get_geometry_hint();
-
-	Vector<Vector3> lines;
-	int fc = faces.size();
-	PoolVector<Face3>::Read r = faces.read();
-
-	Map<_EdgeKey, Vector3> edge_map;
-
-	for (int i = 0; i < fc; i++) {
-
-			Vector3 fn = r[i].get_plane().normal;
-
-			for (int j = 0; j < 3; j++) {
-
-					_EdgeKey ek;
-					ek.from = r[i].vertex[j].snapped(Vector3(CMP_EPSILON, CMP_EPSILON, CMP_EPSILON));
-					ek.to = r[i].vertex[(j + 1) % 3].snapped(Vector3(CMP_EPSILON, CMP_EPSILON, CMP_EPSILON));
-					if (ek.from < ek.to)
-						SWAP(ek.from, ek.to);
-
-					Map<_EdgeKey, Vector3>::Element *E = edge_map.find(ek);
-
-					if (E) {
-
-							if (E->get().dot(fn) > 0.9) {
-
-									E->get() = Vector3();
-								}
-
-						} else {
-
-							edge_map[ek] = fn;
-						}
-				}
-		}
-
-	for (Map<_EdgeKey, Vector3>::Element *E = edge_map.front(); E; E = E->next()) {
-
-			if (E->get() != Vector3()) {
-					lines.push_back(E->key().from);
-					lines.push_back(E->key().to);
-				}
-		}
-
-	add_lines(lines, EditorSpatialGizmos::singleton->room_material);
-	add_collision_segments(lines);
-}
-
-RoomSpatialGizmo::RoomSpatialGizmo(Room *p_room) {
-
-	set_spatial_node(p_room);
-	room = p_room;
-}
-
-/////
-
-void PortalSpatialGizmo::redraw() {
-
-	clear();
-
-	Vector<Point2> points = portal->get_shape();
-	if (points.size() == 0) {
-			return;
-		}
-
-	Vector<Vector3> lines;
-
-	Vector3 center;
-	for (int i = 0; i < points.size(); i++) {
-
-			Vector3 f;
-			f.x = points[i].x;
-			f.y = points[i].y;
-			Vector3 fn;
-			fn.x = points[(i + 1) % points.size()].x;
-			fn.y = points[(i + 1) % points.size()].y;
-			center += f;
-
-			lines.push_back(f);
-			lines.push_back(fn);
-		}
-
-	center /= points.size();
-	lines.push_back(center);
-	lines.push_back(center + Vector3(0, 0, 1));
-
-	add_lines(lines, EditorSpatialGizmos::singleton->portal_material);
-	add_collision_segments(lines);
-}
-
-PortalSpatialGizmo::PortalSpatialGizmo(Portal *p_portal) {
-
-	set_spatial_node(p_portal);
-	portal = p_portal;
-}
-
-#endif
 /////
 
 RayCastSpatialGizmoPlugin::RayCastSpatialGizmoPlugin() {
diff --git a/editor/spatial_editor_gizmos.h b/editor/spatial_editor_gizmos.h
index 1d6801a136..81b62981ac 100644
--- a/editor/spatial_editor_gizmos.h
+++ b/editor/spatial_editor_gizmos.h
@@ -160,19 +160,6 @@ public:
 	PhysicalBoneSpatialGizmoPlugin();
 };
 
-#if 0
-class PortalSpatialGizmo : public EditorSpatialGizmo {
-
-	GDCLASS(PortalSpatialGizmo, EditorSpatialGizmo);
-
-	Portal *portal;
-
-public:
-	void redraw();
-	PortalSpatialGizmo(Portal *p_portal = NULL);
-};
-#endif
-
 class RayCastSpatialGizmoPlugin : public EditorSpatialGizmoPlugin {
 
 	GDCLASS(RayCastSpatialGizmoPlugin, EditorSpatialGizmoPlugin);
diff --git a/modules/gdnative/pluginscript/pluginscript_instance.cpp b/modules/gdnative/pluginscript/pluginscript_instance.cpp
index 97897870ba..c64a00a4d9 100644
--- a/modules/gdnative/pluginscript/pluginscript_instance.cpp
+++ b/modules/gdnative/pluginscript/pluginscript_instance.cpp
@@ -28,11 +28,13 @@
 /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 /*************************************************************************/
 
+#include "pluginscript_instance.h"
+
 // Godot imports
 #include "core/os/os.h"
 #include "core/variant.h"
+
 // PluginScript imports
-#include "pluginscript_instance.h"
 #include "pluginscript_language.h"
 #include "pluginscript_script.h"
 
@@ -89,51 +91,6 @@ Variant PluginScriptInstance::call(const StringName &p_method, const Variant **p
 	return var_ret;
 }
 
-#if 0 // TODO: Don't rely on default implementations provided by ScriptInstance ?
-void PluginScriptInstance::call_multilevel(const StringName& p_method,const Variant** p_args,int p_argcount) {
-
-#if 0
-    PluginScript *sptr=script.ptr();
-    Variant::CallError ce;
-
-    while(sptr) {
-        Map<StringName,GDFunction*>::Element *E = sptr->member_functions.find(p_method);
-        if (E) {
-            E->get()->call(this,p_args,p_argcount,ce);
-        }
-        sptr = sptr->_base;
-    }
-#endif
-
-}
-
-#if 0
-void PluginScriptInstance::_ml_call_reversed(PluginScript *sptr,const StringName& p_method,const Variant** p_args,int p_argcount) {
-
-    if (sptr->_base)
-        _ml_call_reversed(sptr->_base,p_method,p_args,p_argcount);
-
-    Variant::CallError ce;
-
-    Map<StringName,GDFunction*>::Element *E = sptr->member_functions.find(p_method);
-    if (E) {
-        E->get()->call(this,p_args,p_argcount,ce);
-    }
-
-}
-#endif
-
-
-void PluginScriptInstance::call_multilevel_reversed(const StringName& p_method,const Variant** p_args,int p_argcount) {
-
-#if 0
-    if (script.ptr()) {
-        _ml_call_reversed(script.ptr(),p_method,p_args,p_argcount);
-    }
-#endif
-}
-#endif // Multilevel stuff
-
 void PluginScriptInstance::notification(int p_notification) {
 	_desc->notification(_data, p_notification);
 }
diff --git a/modules/gdnative/pluginscript/pluginscript_instance.h b/modules/gdnative/pluginscript/pluginscript_instance.h
index d92d3ace77..dc1229a44d 100644
--- a/modules/gdnative/pluginscript/pluginscript_instance.h
+++ b/modules/gdnative/pluginscript/pluginscript_instance.h
@@ -33,6 +33,7 @@
 
 // Godot imports
 #include "core/script_language.h"
+
 // PluginScript imports
 #include <pluginscript/godot_pluginscript.h>
 
@@ -60,13 +61,12 @@ public:
 	virtual bool has_method(const StringName &p_method) const;
 
 	virtual Variant call(const StringName &p_method, const Variant **p_args, int p_argcount, Variant::CallError &r_error);
-#if 0
-    // Rely on default implementations provided by ScriptInstance for the moment.
-    // Note that multilevel call could be removed in 3.0 release, so stay tuned
-    // (see https://godotengine.org/qa/9244/can-override-the-_ready-and-_process-functions-child-classes)
-    virtual void call_multilevel(const StringName& p_method,const Variant** p_args,int p_argcount);
-    virtual void call_multilevel_reversed(const StringName& p_method,const Variant** p_args,int p_argcount);
-#endif
+
+	// Rely on default implementations provided by ScriptInstance for the moment.
+	// Note that multilevel call could be removed in 3.0 release, so stay tuned
+	// (see https://godotengine.org/qa/9244/can-override-the-_ready-and-_process-functions-child-classes)
+	//virtual void call_multilevel(const StringName& p_method,const Variant** p_args,int p_argcount);
+	//virtual void call_multilevel_reversed(const StringName& p_method,const Variant** p_args,int p_argcount);
 
 	virtual void notification(int p_notification);
 
diff --git a/modules/gdscript/gdscript_function.cpp b/modules/gdscript/gdscript_function.cpp
index 524be480d7..452b1933eb 100644
--- a/modules/gdscript/gdscript_function.cpp
+++ b/modules/gdscript/gdscript_function.cpp
@@ -1550,10 +1550,8 @@ Variant GDScriptFunction::call(GDScriptInstance *p_instance, const Variant **p_a
 				OPCODE_BREAK;
 			}
 
-// Enable for debugging
-#if 0
+#if 0 // Enable for debugging.
 			default: {
-
 				err_text = "Illegal opcode " + itos(_code_ptr[ip]) + " at address " + itos(ip);
 				OPCODE_BREAK;
 			}
diff --git a/scene/2d/polygon_2d.cpp b/scene/2d/polygon_2d.cpp
index c480423eca..a6da027e0a 100644
--- a/scene/2d/polygon_2d.cpp
+++ b/scene/2d/polygon_2d.cpp
@@ -346,195 +346,6 @@ void Polygon2D::_notification(int p_what) {
 				if (total_indices.size()) {
 					VS::get_singleton()->canvas_item_add_triangle_array(get_canvas_item(), total_indices, points, colors, uvs, bones, weights, texture.is_valid() ? texture->get_rid() : RID(), -1, RID(), antialiased);
 				}
-
-#if 0
-				//use splits
-				Vector<int> loop;
-				int sc = splits.size();
-				PoolVector<int>::Read r = splits.read();
-
-
-				print_line("has splits, amount " + itos(splits.size()));
-				Vector<Vector<int> > loops;
-
-				// find a point that can be used to begin, must not be in a split, and have to the left and right the same one
-				// like this one -> x---o
-				//                   \ / \ .
-				//                    o---o
-				int base_point = -1;
-				{
-					int current_point = -1;
-					int base_point_prev_split = -1;
-
-
-					for (int i = 0; i < points.size(); i++) {
-
-						//find if this point is in a split
-						int split_index = -1;
-						bool has_prev_split = false;
-						int min_dist_to_end = 0x7FFFFFFF;
-
-						for (int j = 0; j < sc; j += 2) {
-
-							int split_pos = -1;
-							int split_end = -1;
-
-							if (r[j + 0] == i) { //found split in first point
-								split_pos = r[j + 0];
-								split_end = r[j + 1];
-							} else if (r[j + 1] == i) { //found split in second point
-								split_pos = r[j + 1];
-								split_end = r[j + 0];
-							}
-
-							if (split_pos == split_end) {
-								continue; //either nothing found or begin == end, this not a split in either case
-							}
-
-							if (j == base_point_prev_split) {
-								has_prev_split = true;
-							}
-
-							//compute distance from split pos to split end in current traversal direction
-							int dist_to_end = split_end > split_pos ? split_end - split_pos : (last - split_pos + split_end);
-
-							if (dist_to_end < min_dist_to_end) {
-								//always keep the valid split with the least distance to the loop
-								min_dist_to_end = dist_to_end;
-								split_index = j;
-							}
-						}
-
-						if (split_index == -1) {
-							current_point = i; //no split here, we are testing this point
-						} else if (has_prev_split) {
-							base_point = current_point; // there is a split and it contains the previous visited split, success
-							break;
-						} else {
-							//invalidate current point and keep split
-							current_point = -1;
-							base_point_prev_split = split_index;
-						}
-					}
-				}
-
-				print_line("found base point: " + itos(base_point));
-
-				if (base_point != -1) {
-
-					int point = base_point;
-					int last = base_point;
-					//go through all the points, find splits
-					do {
-
-						int split;
-						int last_dist_to_end = -1; //maximum valid distance to end
-
-						do {
-
-							loop.push_back(point); //push current point
-
-							split = -1;
-							int end = -1;
-
-							int max_dist_to_end = 0;
-
-							//find if this point is in a split
-							for (int j = 0; j < sc; j += 2) {
-
-								int split_pos = -1;
-								int split_end = -1;
-
-								if (r[j + 0] == point) { //match first split index
-									split_pos = r[j + 0];
-									split_end = r[j + 1];
-								} else if (r[j + 1] == point) { //match second split index
-									split_pos = r[j + 1];
-									split_end = r[j + 0];
-								}
-
-								if (split_pos == split_end) {
-									continue; //either nothing found or begin == end, this not a split in either case
-								}
-
-								//compute distance from split pos to split end
-								int dist_to_end = split_end > split_pos ? split_end - split_pos : (points.size() - split_pos + split_end);
-
-								if (last_dist_to_end != -1 && dist_to_end >= last_dist_to_end) {
-									//distance must be shorter than in last iteration, means we've tested this before so ignore
-									continue;
-								} else if (dist_to_end > max_dist_to_end) {
-									//always keep the valid point with the most distance (as long as it's valid)
-									max_dist_to_end = dist_to_end;
-									split = split_pos;
-									end = split_end;
-								}
-							}
-
-							if (split != -1) {
-								//found a split!
-								int from = end;
-
-								//add points until last is reached
-								while (true) {
-									//find if point is in a split
-									loop.push_back(from);
-
-									if (from == last) {
-										break;
-									}
-
-									from++;
-									if (from >= points.size()) { //wrap if reached end
-										from = 0;
-									}
-
-									if (from == loop[0]) {
-										break; //end because we reached split source
-									}
-								}
-
-								loops.push_back(loop); //done with this loop
-								loop.clear();
-
-								last_dist_to_end = max_dist_to_end;
-								last = end; //algorithm can safely finish in this split point
-							}
-
-						} while (split != -1);
-
-					} while (point != last);
-				}
-
-				if (loop.size() >=2 ) { //points remained
-					//points remain
-					loop.push_back(last); //no splits found, use last
-					loops.push_back(loop);
-				}
-
-				print_line("total loops: " + itos(loops.size()));
-
-				if (loops.size()) { //loops found
-					Vector<int> indices;
-
-					for (int i = 0; i < loops.size(); i++) {
-						Vector<int> loop = loops[i];
-						Vector<Vector2> vertices;
-						vertices.resize(loop.size());
-						for (int j = 0; j < vertices.size(); j++) {
-							vertices.write[j] = points[loop[j]];
-						}
-						Vector<int> sub_indices = Geometry::triangulate_polygon(vertices);
-						int from = indices.size();
-						indices.resize(from + sub_indices.size());
-						for (int j = 0; j < sub_indices.size(); j++) {
-							indices.write[from + j] = loop[sub_indices[j]];
-						}
-					}
-
-					VS::get_singleton()->canvas_item_add_triangle_array(get_canvas_item(), indices, points, colors, uvs, bones, weights, texture.is_valid() ? texture->get_rid() : RID());
-				}
-#endif
 			}
 
 		} break;
diff --git a/scene/3d/portal.cpp b/scene/3d/portal.cpp
deleted file mode 100644
index e60ca619dd..0000000000
--- a/scene/3d/portal.cpp
+++ /dev/null
@@ -1,232 +0,0 @@
-/*************************************************************************/
-/*  portal.cpp                                                           */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#include "portal.h"
-#include "core/project_settings.h"
-#include "scene/resources/surface_tool.h"
-#include "servers/visual_server.h"
-
-// FIXME: This will be removed, kept as reference for new implementation
-#if 0
-bool Portal::_set(const StringName &p_name, const Variant &p_value) {
-
-	if (p_name == "shape") {
-		PoolVector<float> src_coords = p_value;
-		Vector<Point2> points;
-		int src_coords_size = src_coords.size();
-		ERR_FAIL_COND_V(src_coords_size % 2, false);
-		points.resize(src_coords_size / 2);
-		for (int i = 0; i < points.size(); i++) {
-
-			points[i].x = src_coords[i * 2 + 0];
-			points[i].y = src_coords[i * 2 + 1];
-			set_shape(points);
-		}
-	} else if (p_name == "enabled") {
-		set_enabled(p_value);
-	} else if (p_name == "disable_distance") {
-		set_disable_distance(p_value);
-	} else if (p_name == "disabled_color") {
-		set_disabled_color(p_value);
-	} else if (p_name == "connect_range") {
-		set_connect_range(p_value);
-	} else
-		return false;
-
-	return true;
-}
-
-bool Portal::_get(const StringName &p_name, Variant &r_ret) const {
-
-	if (p_name == "shape") {
-		Vector<Point2> points = get_shape();
-		PoolVector<float> dst_coords;
-		dst_coords.resize(points.size() * 2);
-
-		for (int i = 0; i < points.size(); i++) {
-
-			dst_coords.set(i * 2 + 0, points[i].x);
-			dst_coords.set(i * 2 + 1, points[i].y);
-		}
-
-		r_ret = dst_coords;
-	} else if (p_name == "enabled") {
-		r_ret = is_enabled();
-	} else if (p_name == "disable_distance") {
-		r_ret = get_disable_distance();
-	} else if (p_name == "disabled_color") {
-		r_ret = get_disabled_color();
-	} else if (p_name == "connect_range") {
-		r_ret = get_connect_range();
-	} else
-		return false;
-	return true;
-}
-
-void Portal::_get_property_list(List<PropertyInfo> *p_list) const {
-
-	p_list->push_back(PropertyInfo(Variant::POOL_REAL_ARRAY, "shape"));
-	p_list->push_back(PropertyInfo(Variant::BOOL, "enabled"));
-	p_list->push_back(PropertyInfo(Variant::REAL, "disable_distance", PROPERTY_HINT_RANGE, "0,4096,0.01"));
-	p_list->push_back(PropertyInfo(Variant::COLOR, "disabled_color"));
-	p_list->push_back(PropertyInfo(Variant::REAL, "connect_range", PROPERTY_HINT_RANGE, "0.1,4096,0.01"));
-}
-
-AABB Portal::get_aabb() const {
-
-	return aabb;
-}
-PoolVector<Face3> Portal::get_faces(uint32_t p_usage_flags) const {
-
-	if (!(p_usage_flags & FACES_ENCLOSING))
-		return PoolVector<Face3>();
-
-	Vector<Point2> shape = get_shape();
-	if (shape.size() == 0)
-		return PoolVector<Face3>();
-
-	Vector2 center;
-	for (int i = 0; i < shape.size(); i++) {
-
-		center += shape[i];
-	}
-
-	PoolVector<Face3> ret;
-	center /= shape.size();
-
-	for (int i = 0; i < shape.size(); i++) {
-
-		int n = (i + 1) % shape.size();
-
-		Face3 f;
-		f.vertex[0] = Vector3(center.x, center.y, 0);
-		f.vertex[1] = Vector3(shape[i].x, shape[i].y, 0);
-		f.vertex[2] = Vector3(shape[n].x, shape[n].y, 0);
-		ret.push_back(f);
-	}
-
-	return ret;
-}
-
-void Portal::set_shape(const Vector<Point2> &p_shape) {
-
-	VisualServer::get_singleton()->portal_set_shape(portal, p_shape);
-	shape = p_shape;
-	update_gizmo();
-}
-
-Vector<Point2> Portal::get_shape() const {
-
-	return shape;
-}
-
-void Portal::set_connect_range(float p_range) {
-
-	connect_range = p_range;
-	//VisualServer::get_singleton()->portal_set_connect_range(portal,p_range);
-}
-
-float Portal::get_connect_range() const {
-
-	return connect_range;
-}
-
-void Portal::set_enabled(bool p_enabled) {
-
-	enabled = p_enabled;
-	VisualServer::get_singleton()->portal_set_enabled(portal, enabled);
-}
-
-bool Portal::is_enabled() const {
-
-	return enabled;
-}
-
-void Portal::set_disable_distance(float p_distance) {
-
-	disable_distance = p_distance;
-	VisualServer::get_singleton()->portal_set_disable_distance(portal, disable_distance);
-}
-float Portal::get_disable_distance() const {
-
-	return disable_distance;
-}
-
-void Portal::set_disabled_color(const Color &p_disabled_color) {
-
-	disabled_color = p_disabled_color;
-	VisualServer::get_singleton()->portal_set_disabled_color(portal, disabled_color);
-}
-
-Color Portal::get_disabled_color() const {
-
-	return disabled_color;
-}
-
-void Portal::_bind_methods() {
-
-	ClassDB::bind_method(D_METHOD("set_shape", "points"), &Portal::set_shape);
-	ClassDB::bind_method(D_METHOD("get_shape"), &Portal::get_shape);
-
-	ClassDB::bind_method(D_METHOD("set_enabled", "enable"), &Portal::set_enabled);
-	ClassDB::bind_method(D_METHOD("is_enabled"), &Portal::is_enabled);
-
-	ClassDB::bind_method(D_METHOD("set_disable_distance", "distance"), &Portal::set_disable_distance);
-	ClassDB::bind_method(D_METHOD("get_disable_distance"), &Portal::get_disable_distance);
-
-	ClassDB::bind_method(D_METHOD("set_disabled_color", "color"), &Portal::set_disabled_color);
-	ClassDB::bind_method(D_METHOD("get_disabled_color"), &Portal::get_disabled_color);
-
-	ClassDB::bind_method(D_METHOD("set_connect_range", "range"), &Portal::set_connect_range);
-	ClassDB::bind_method(D_METHOD("get_connect_range"), &Portal::get_connect_range);
-}
-
-Portal::Portal() {
-
-	portal = VisualServer::get_singleton()->portal_create();
-	Vector<Point2> points;
-	points.push_back(Point2(-1, 1));
-	points.push_back(Point2(1, 1));
-	points.push_back(Point2(1, -1));
-	points.push_back(Point2(-1, -1));
-	set_shape(points); // default shape
-
-	set_connect_range(0.8);
-	set_disable_distance(50);
-	set_enabled(true);
-
-	set_base(portal);
-}
-
-Portal::~Portal() {
-
-	VisualServer::get_singleton()->free(portal);
-}
-#endif
diff --git a/scene/3d/portal.h b/scene/3d/portal.h
deleted file mode 100644
index 7e8b016e79..0000000000
--- a/scene/3d/portal.h
+++ /dev/null
@@ -1,88 +0,0 @@
-/*************************************************************************/
-/*  portal.h                                                             */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#ifndef PORTAL_H
-#define PORTAL_H
-
-#include "scene/3d/visual_instance.h"
-
-/* Portal Logic:
-   If a portal is placed next (very close to) a similar, opposing portal, they automatically connect,
-   otherwise, a portal connects to the parent room
-*/
-// FIXME: This will be redone and replaced by area portals, left for reference
-// since a new class with this name will have to exist and want to reuse the gizmos
-#if 0
-class Portal : public VisualInstance {
-
-	GDCLASS(Portal, VisualInstance);
-
-	RID portal;
-	Vector<Point2> shape;
-
-	bool enabled;
-	float disable_distance;
-	Color disabled_color;
-	float connect_range;
-
-	AABB aabb;
-
-protected:
-	bool _set(const StringName &p_name, const Variant &p_value);
-	bool _get(const StringName &p_name, Variant &r_ret) const;
-	void _get_property_list(List<PropertyInfo> *p_list) const;
-
-	static void _bind_methods();
-
-public:
-	virtual AABB get_aabb() const;
-	virtual PoolVector<Face3> get_faces(uint32_t p_usage_flags) const;
-
-	void set_enabled(bool p_enabled);
-	bool is_enabled() const;
-
-	void set_disable_distance(float p_distance);
-	float get_disable_distance() const;
-
-	void set_disabled_color(const Color &p_disabled_color);
-	Color get_disabled_color() const;
-
-	void set_shape(const Vector<Point2> &p_shape);
-	Vector<Point2> get_shape() const;
-
-	void set_connect_range(float p_range);
-	float get_connect_range() const;
-
-	Portal();
-	~Portal();
-};
-
-#endif
-#endif
diff --git a/scene/3d/room_instance.cpp b/scene/3d/room_instance.cpp
deleted file mode 100644
index 61687360a6..0000000000
--- a/scene/3d/room_instance.cpp
+++ /dev/null
@@ -1,164 +0,0 @@
-/*************************************************************************/
-/*  room_instance.cpp                                                    */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#include "room_instance.h"
-
-#include "servers/visual_server.h"
-
-// FIXME: Will be removed, kept as reference for new implementation
-#if 0
-#include "core/math/geometry.h"
-#include "core/project_settings.h"
-#include "scene/resources/surface_tool.h"
-
-void Room::_notification(int p_what) {
-
-	switch (p_what) {
-		case NOTIFICATION_ENTER_WORLD: {
-			// go find parent level
-			Node *parent_room = get_parent();
-			level = 0;
-
-			while (parent_room) {
-
-				Room *r = Object::cast_to<Room>(parent_room);
-				if (r) {
-
-					level = r->level + 1;
-					break;
-				}
-
-				parent_room = parent_room->get_parent();
-			}
-
-		} break;
-		case NOTIFICATION_TRANSFORM_CHANGED: {
-		} break;
-		case NOTIFICATION_EXIT_WORLD: {
-
-		} break;
-	}
-}
-
-AABB Room::get_aabb() const {
-
-	if (room.is_null())
-		return AABB();
-
-	return AABB();
-}
-
-PoolVector<Face3> Room::get_faces(uint32_t p_usage_flags) const {
-
-	return PoolVector<Face3>();
-}
-
-void Room::set_room(const Ref<RoomBounds> &p_room) {
-
-	room = p_room;
-	update_gizmo();
-
-	if (room.is_valid()) {
-
-		set_base(room->get_rid());
-	} else {
-		set_base(RID());
-	}
-
-	if (!is_inside_tree())
-		return;
-
-	propagate_notification(NOTIFICATION_AREA_CHANGED);
-	update_gizmo();
-}
-
-Ref<RoomBounds> Room::get_room() const {
-
-	return room;
-}
-
-void Room::_parse_node_faces(PoolVector<Face3> &all_faces, const Node *p_node) const {
-
-	const VisualInstance *vi = Object::cast_to<VisualInstance>(p_node);
-
-	if (vi) {
-		PoolVector<Face3> faces = vi->get_faces(FACES_ENCLOSING);
-
-		if (faces.size()) {
-			int old_len = all_faces.size();
-			all_faces.resize(all_faces.size() + faces.size());
-			int new_len = all_faces.size();
-			PoolVector<Face3>::Write all_facesw = all_faces.write();
-			Face3 *all_facesptr = all_facesw.ptr();
-
-			PoolVector<Face3>::Read facesr = faces.read();
-			const Face3 *facesptr = facesr.ptr();
-
-			Transform tr = vi->get_relative_transform(this);
-
-			for (int i = old_len; i < new_len; i++) {
-
-				Face3 f = facesptr[i - old_len];
-				for (int j = 0; j < 3; j++)
-					f.vertex[j] = tr.xform(f.vertex[j]);
-				all_facesptr[i] = f;
-			}
-		}
-	}
-
-	for (int i = 0; i < p_node->get_child_count(); i++) {
-
-		_parse_node_faces(all_faces, p_node->get_child(i));
-	}
-}
-
-void Room::_bounds_changed() {
-
-	update_gizmo();
-}
-
-void Room::_bind_methods() {
-
-	ClassDB::bind_method(D_METHOD("set_room", "room"), &Room::set_room);
-	ClassDB::bind_method(D_METHOD("get_room"), &Room::get_room);
-
-	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "room/room", PROPERTY_HINT_RESOURCE_TYPE, "Area"), "set_room", "get_room");
-}
-
-Room::Room() {
-
-	//	sound_enabled=false;
-
-	level = 0;
-}
-
-Room::~Room() {
-}
-#endif
diff --git a/scene/3d/room_instance.h b/scene/3d/room_instance.h
deleted file mode 100644
index 071d42cff2..0000000000
--- a/scene/3d/room_instance.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/*************************************************************************/
-/*  room_instance.h                                                      */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#ifndef ROOM_INSTANCE_H
-#define ROOM_INSTANCE_H
-
-#include "scene/3d/visual_instance.h"
-#include "scene/resources/room.h"
-
-/* RoomInstance Logic:
-   a) Instances that belong to the room are drawn only if the room is visible (seen through portal, or player inside)
-   b) Instances that don't belong to any room are considered to belong to the root room (RID empty)
-   c) "dynamic" Instances are assigned to the rooms their AABB touch
-
-*/
-
-// FIXME: this will be removed, left for reference
-#if 0
-
-class Room : public VisualInstance {
-
-	GDCLASS(Room, VisualInstance);
-
-public:
-private:
-	Ref<RoomBounds> room;
-
-	int level;
-	void _parse_node_faces(PoolVector<Face3> &all_faces, const Node *p_node) const;
-
-	void _bounds_changed();
-
-protected:
-	void _notification(int p_what);
-
-	static void _bind_methods();
-
-public:
-	enum {
-		// used to notify portals that the room in which they are has changed.
-		NOTIFICATION_AREA_CHANGED = 60
-	};
-
-	virtual AABB get_aabb() const;
-	virtual PoolVector<Face3> get_faces(uint32_t p_usage_flags) const;
-
-	void set_room(const Ref<RoomBounds> &p_room);
-	Ref<RoomBounds> get_room() const;
-
-	Room();
-	~Room();
-};
-#endif
-#endif // ROOM_INSTANCE_H
diff --git a/scene/3d/voxel_light_baker.cpp b/scene/3d/voxel_light_baker.cpp
index 9970b9350f..c1ec59d49f 100644
--- a/scene/3d/voxel_light_baker.cpp
+++ b/scene/3d/voxel_light_baker.cpp
@@ -29,6 +29,7 @@
 /*************************************************************************/
 
 #include "voxel_light_baker.h"
+
 #include "core/os/os.h"
 #include "core/os/threaded_array_processor.h"
 
@@ -2118,8 +2119,7 @@ Error VoxelLightBaker::make_lightmap(const Transform &p_xform, Ref<Mesh> &p_mesh
 			}
 		}
 
-// Enable for debugging
-#if 0
+#if 0 // Enable for debugging.
 		{
 			PoolVector<uint8_t> img;
 			int ls = lightmap.size();
diff --git a/scene/animation/animation_blend_tree.cpp b/scene/animation/animation_blend_tree.cpp
index a604fb9604..5f606ff4c5 100644
--- a/scene/animation/animation_blend_tree.cpp
+++ b/scene/animation/animation_blend_tree.cpp
@@ -29,6 +29,7 @@
 /*************************************************************************/
 
 #include "animation_blend_tree.h"
+
 #include "scene/scene_string_names.h"
 
 void AnimationNodeAnimation::set_animation(const StringName &p_name) {
@@ -718,21 +719,6 @@ String AnimationNodeTransition::get_input_caption(int p_input) const {
 	return inputs[p_input].name;
 }
 
-#if 0
-	Ref<AnimationNodeBlendTree> tree = get_parent();
-
-	if (tree.is_valid() && current >= 0) {
-		prev = current;
-		prev_xfading = xfade;
-		time = 0;
-		current = p_current;
-		switched = true;
-		_change_notify("current");
-	} else {
-		current = p_current;
-	}
-#endif
-
 void AnimationNodeTransition::set_cross_fade_time(float p_fade) {
 	xfade = p_fade;
 }
diff --git a/scene/register_scene_types.cpp b/scene/register_scene_types.cpp
index 09d4505458..c0c6b864a5 100644
--- a/scene/register_scene_types.cpp
+++ b/scene/register_scene_types.cpp
@@ -194,13 +194,11 @@
 #include "scene/3d/path.h"
 #include "scene/3d/physics_body.h"
 #include "scene/3d/physics_joint.h"
-#include "scene/3d/portal.h"
 #include "scene/3d/position_3d.h"
 #include "scene/3d/proximity_group.h"
 #include "scene/3d/ray_cast.h"
 #include "scene/3d/reflection_probe.h"
 #include "scene/3d/remote_transform.h"
-#include "scene/3d/room_instance.h"
 #include "scene/3d/skeleton.h"
 #include "scene/3d/soft_body.h"
 #include "scene/3d/spring_arm.h"
diff --git a/scene/resources/room.cpp b/scene/resources/room.cpp
deleted file mode 100644
index 51c4489ec3..0000000000
--- a/scene/resources/room.cpp
+++ /dev/null
@@ -1,70 +0,0 @@
-/*************************************************************************/
-/*  room.cpp                                                             */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#include "room.h"
-
-#include "servers/visual_server.h"
-
-// FIXME: Left for reference for reimplementation using Area
-#if 0
-RID RoomBounds::get_rid() const {
-
-	return area;
-}
-
-void RoomBounds::set_geometry_hint(const PoolVector<Face3> &p_geometry_hint) {
-
-	geometry_hint = p_geometry_hint;
-}
-
-PoolVector<Face3> RoomBounds::get_geometry_hint() const {
-
-	return geometry_hint;
-}
-
-void RoomBounds::_bind_methods() {
-
-	ClassDB::bind_method(D_METHOD("set_geometry_hint", "triangles"), &RoomBounds::set_geometry_hint);
-	ClassDB::bind_method(D_METHOD("get_geometry_hint"), &RoomBounds::get_geometry_hint);
-
-	//ADD_PROPERTY( PropertyInfo( Variant::DICTIONARY, "bounds"), "set_bounds","get_bounds") ;
-	ADD_PROPERTY(PropertyInfo(Variant::POOL_VECTOR3_ARRAY, "geometry_hint"), "set_geometry_hint", "get_geometry_hint");
-}
-
-RoomBounds::RoomBounds() {
-
-	area = VisualServer::get_singleton()->room_create();
-}
-
-RoomBounds::~RoomBounds() {
-
-	VisualServer::get_singleton()->free(area);
-}
-#endif
diff --git a/scene/resources/room.h b/scene/resources/room.h
deleted file mode 100644
index 809a9c1de8..0000000000
--- a/scene/resources/room.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/*************************************************************************/
-/*  room.h                                                               */
-/*************************************************************************/
-/*                       This file is part of:                           */
-/*                           GODOT ENGINE                                */
-/*                      https://godotengine.org                          */
-/*************************************************************************/
-/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur.                 */
-/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md).   */
-/*                                                                       */
-/* Permission is hereby granted, free of charge, to any person obtaining */
-/* a copy of this software and associated documentation files (the       */
-/* "Software"), to deal in the Software without restriction, including   */
-/* without limitation the rights to use, copy, modify, merge, publish,   */
-/* distribute, sublicense, and/or sell copies of the Software, and to    */
-/* permit persons to whom the Software is furnished to do so, subject to */
-/* the following conditions:                                             */
-/*                                                                       */
-/* The above copyright notice and this permission notice shall be        */
-/* included in all copies or substantial portions of the Software.       */
-/*                                                                       */
-/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
-/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
-/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
-/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
-/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
-/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
-/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
-/*************************************************************************/
-
-#ifndef ROOM_BOUNDS_H
-#define ROOM_BOUNDS_H
-
-#include "core/math/bsp_tree.h"
-#include "core/resource.h"
-
-// FIXME: left for reference but will be removed when portals are reimplemented using Area
-#if 0
-
-class RoomBounds : public Resource {
-
-	GDCLASS(RoomBounds, Resource);
-	RES_BASE_EXTENSION("room");
-
-	RID area;
-	PoolVector<Face3> geometry_hint;
-
-protected:
-	static void _bind_methods();
-
-public:
-	virtual RID get_rid() const;
-
-	void set_geometry_hint(const PoolVector<Face3> &p_geometry_hint);
-	PoolVector<Face3> get_geometry_hint() const;
-
-	RoomBounds();
-	~RoomBounds();
-};
-
-#endif
-#endif // ROOM_H
diff --git a/servers/audio_server.h b/servers/audio_server.h
index 13d6abbc8d..815200c811 100644
--- a/servers/audio_server.h
+++ b/servers/audio_server.h
@@ -247,18 +247,6 @@ private:
 
 	void _mix_step();
 
-#if 0
-	struct AudioInBlock {
-
-		Ref<AudioStreamSample> audio_stream;
-		int current_position;
-		bool loops;
-	};
-
-	Map<StringName, AudioInBlock *> audio_in_block_map;
-	Vector<AudioInBlock *> audio_in_blocks;
-#endif
-
 	struct CallbackItem {
 
 		AudioCallback callback;
diff --git a/servers/visual/visual_server_raster.h b/servers/visual/visual_server_raster.h
index 1a1e86833e..9afcfc4648 100644
--- a/servers/visual/visual_server_raster.h
+++ b/servers/visual/visual_server_raster.h
@@ -531,11 +531,10 @@ public:
 	BIND2(scenario_set_fallback_environment, RID, RID)
 
 	/* INSTANCING API */
-	// from can be mesh, light,  area and portal so far.
 	BIND0R(RID, instance_create)
 
-	BIND2(instance_set_base, RID, RID) // from can be mesh, light, poly, area and portal so far.
-	BIND2(instance_set_scenario, RID, RID) // from can be mesh, light, poly, area and portal so far.
+	BIND2(instance_set_base, RID, RID)
+	BIND2(instance_set_scenario, RID, RID)
 	BIND2(instance_set_layer_mask, RID, uint32_t)
 	BIND2(instance_set_transform, RID, const Transform &)
 	BIND2(instance_attach_object_instance_id, RID, ObjectID)
diff --git a/servers/visual/visual_server_scene.cpp b/servers/visual/visual_server_scene.cpp
index bf9db616e4..409a814b3b 100644
--- a/servers/visual/visual_server_scene.cpp
+++ b/servers/visual/visual_server_scene.cpp
@@ -29,10 +29,13 @@
 /*************************************************************************/
 
 #include "visual_server_scene.h"
+
 #include "core/os/os.h"
 #include "visual_server_globals.h"
 #include "visual_server_raster.h"
+
 #include <new>
+
 /* CAMERA API */
 
 RID VisualServerScene::camera_create() {
@@ -314,7 +317,6 @@ void VisualServerScene::_instance_queue_update(Instance *p_instance, bool p_upda
 	_instance_update_list.add(&p_instance->update_item);
 }
 
-// from can be mesh, light,  area and portal so far.
 RID VisualServerScene::instance_create() {
 
 	Instance *instance = memnew(Instance);
diff --git a/servers/visual/visual_server_scene.h b/servers/visual/visual_server_scene.h
index ad74250fe4..a174d9e616 100644
--- a/servers/visual/visual_server_scene.h
+++ b/servers/visual/visual_server_scene.h
@@ -55,22 +55,6 @@ public:
 
 	static VisualServerScene *singleton;
 
-// FIXME: Kept as reference for future implementation
-#if 0
-	struct Portal {
-
-		bool enabled;
-		float disable_distance;
-		Color disable_color;
-		float connect_range;
-		Vector<Point2> shape;
-		Rect2 bounds;
-
-
-		Portal() { enabled=true; disable_distance=50; disable_color=Color(); connect_range=0.8; }
-	};
-#endif
-
 	/* CAMERA API */
 
 	struct Camera : public RID_Data {
@@ -450,11 +434,10 @@ public:
 
 	RID_Owner<Instance> instance_owner;
 
-	// from can be mesh, light,  area and portal so far.
-	virtual RID instance_create(); // from can be mesh, light, poly, area and portal so far.
+	virtual RID instance_create();
 
-	virtual void instance_set_base(RID p_instance, RID p_base); // from can be mesh, light, poly, area and portal so far.
-	virtual void instance_set_scenario(RID p_instance, RID p_scenario); // from can be mesh, light, poly, area and portal so far.
+	virtual void instance_set_base(RID p_instance, RID p_base);
+	virtual void instance_set_scenario(RID p_instance, RID p_scenario);
 	virtual void instance_set_layer_mask(RID p_instance, uint32_t p_mask);
 	virtual void instance_set_transform(RID p_instance, const Transform &p_transform);
 	virtual void instance_attach_object_instance_id(RID p_instance, ObjectID p_id);
diff --git a/servers/visual/visual_server_wrap_mt.h b/servers/visual/visual_server_wrap_mt.h
index b8f433d006..b1bbed24fd 100644
--- a/servers/visual/visual_server_wrap_mt.h
+++ b/servers/visual/visual_server_wrap_mt.h
@@ -453,11 +453,10 @@ public:
 	FUNC2(scenario_set_fallback_environment, RID, RID)
 
 	/* INSTANCING API */
-	// from can be mesh, light,  area and portal so far.
 	FUNCRID(instance)
 
-	FUNC2(instance_set_base, RID, RID) // from can be mesh, light, poly, area and portal so far.
-	FUNC2(instance_set_scenario, RID, RID) // from can be mesh, light, poly, area and portal so far.
+	FUNC2(instance_set_base, RID, RID)
+	FUNC2(instance_set_scenario, RID, RID)
 	FUNC2(instance_set_layer_mask, RID, uint32_t)
 	FUNC2(instance_set_transform, RID, const Transform &)
 	FUNC2(instance_attach_object_instance_id, RID, ObjectID)
diff --git a/servers/visual_server.h b/servers/visual_server.h
index 6f0659357c..e7662695a6 100644
--- a/servers/visual_server.h
+++ b/servers/visual_server.h
@@ -813,11 +813,10 @@ public:
 
 	virtual RID instance_create2(RID p_base, RID p_scenario);
 
-	//virtual RID instance_create(RID p_base,RID p_scenario)=0; // from can be mesh, light,  area and portal so far.
-	virtual RID instance_create() = 0; // from can be mesh, light, poly, area and portal so far.
+	virtual RID instance_create() = 0;
 
-	virtual void instance_set_base(RID p_instance, RID p_base) = 0; // from can be mesh, light, poly, area and portal so far.
-	virtual void instance_set_scenario(RID p_instance, RID p_scenario) = 0; // from can be mesh, light, poly, area and portal so far.
+	virtual void instance_set_base(RID p_instance, RID p_base) = 0;
+	virtual void instance_set_scenario(RID p_instance, RID p_scenario) = 0;
 	virtual void instance_set_layer_mask(RID p_instance, uint32_t p_mask) = 0;
 	virtual void instance_set_transform(RID p_instance, const Transform &p_transform) = 0;
 	virtual void instance_attach_object_instance_id(RID p_instance, ObjectID p_id) = 0;