Replace Extents with Size in VoxelGI, ReflectionProbe, FogVolume, Decal and GPUParticles*3D

- Extents are replaced by Size (Size is Extents * 2)
- The UI text displays 'Size'
- Snapping is adjusted to work with Size
- _set and _get handle extents for compatibility

Co-authored-by: ator-dev <dominic.codedeveloper@gmail.com>

11 files changed, 61 insertions, 60 deletions

diff --git a/servers/rendering/renderer_rd/cluster_builder_rd.h b/servers/rendering/renderer_rd/cluster_builder_rd.h
index a13e6c8172..3ca7af70ca 100644
--- a/servers/rendering/renderer_rd/cluster_builder_rd.h
+++ b/servers/rendering/renderer_rd/cluster_builder_rd.h
@@ -330,7 +330,7 @@ public:
 		render_element_count++;
 	}
 
-	_FORCE_INLINE_ void add_box(BoxType p_box_type, const Transform3D &p_transform, const Vector3 &p_half_extents) {
+	_FORCE_INLINE_ void add_box(BoxType p_box_type, const Transform3D &p_transform, const Vector3 &p_half_size) {
 		if (p_box_type == BOX_TYPE_DECAL && cluster_count_by_type[ELEMENT_TYPE_DECAL] == max_elements_by_type) {
 			return; // Max number elements reached.
 		}
@@ -342,7 +342,7 @@ public:
 		Transform3D xform = view_xform * p_transform;
 
 		// Extract scale and scale the matrix by it, makes things simpler.
-		Vector3 scale = p_half_extents;
+		Vector3 scale = p_half_size;
 		for (uint32_t i = 0; i < 3; i++) {
 			float s = xform.basis.rows[i].length();
 			scale[i] *= s;
diff --git a/servers/rendering/renderer_rd/environment/fog.cpp b/servers/rendering/renderer_rd/environment/fog.cpp
index 2787693aeb..4253ea8610 100644
--- a/servers/rendering/renderer_rd/environment/fog.cpp
+++ b/servers/rendering/renderer_rd/environment/fog.cpp
@@ -82,11 +82,11 @@ void Fog::fog_volume_set_shape(RID p_fog_volume, RS::FogVolumeShape p_shape) {
 	fog_volume->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_AABB);
 }
 
-void Fog::fog_volume_set_extents(RID p_fog_volume, const Vector3 &p_extents) {
+void Fog::fog_volume_set_size(RID p_fog_volume, const Vector3 &p_size) {
 	FogVolume *fog_volume = fog_volume_owner.get_or_null(p_fog_volume);
 	ERR_FAIL_COND(!fog_volume);
 
-	fog_volume->extents = p_extents;
+	fog_volume->size = p_size;
 	fog_volume->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_AABB);
 }
 
@@ -120,8 +120,8 @@ AABB Fog::fog_volume_get_aabb(RID p_fog_volume) const {
 		case RS::FOG_VOLUME_SHAPE_CYLINDER:
 		case RS::FOG_VOLUME_SHAPE_BOX: {
 			AABB aabb;
-			aabb.position = -fog_volume->extents;
-			aabb.size = fog_volume->extents * 2;
+			aabb.position = -fog_volume->size / 2;
+			aabb.size = fog_volume->size;
 			return aabb;
 		}
 		default: {
@@ -131,10 +131,10 @@ AABB Fog::fog_volume_get_aabb(RID p_fog_volume) const {
 	}
 }
 
-Vector3 Fog::fog_volume_get_extents(RID p_fog_volume) const {
+Vector3 Fog::fog_volume_get_size(RID p_fog_volume) const {
 	const FogVolume *fog_volume = fog_volume_owner.get_or_null(p_fog_volume);
 	ERR_FAIL_COND_V(!fog_volume, Vector3());
-	return fog_volume->extents;
+	return fog_volume->size;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -210,7 +210,7 @@ void Fog::init_fog_shader(uint32_t p_max_directional_lights, int p_roughness_lay
 		actions.renames["WORLD_POSITION"] = "world.xyz";
 		actions.renames["OBJECT_POSITION"] = "params.position";
 		actions.renames["UVW"] = "uvw";
-		actions.renames["EXTENTS"] = "params.extents";
+		actions.renames["SIZE"] = "params.size";
 		actions.renames["ALBEDO"] = "albedo";
 		actions.renames["DENSITY"] = "density";
 		actions.renames["EMISSION"] = "emission";
@@ -643,7 +643,7 @@ void Fog::volumetric_fog_update(const VolumetricFogSettings &p_settings, const P
 
 			Vector3 position = fog_volume_instance->transform.get_origin();
 			RS::FogVolumeShape volume_type = RendererRD::Fog::get_singleton()->fog_volume_get_shape(fog_volume);
-			Vector3 extents = RendererRD::Fog::get_singleton()->fog_volume_get_extents(fog_volume);
+			Vector3 extents = RendererRD::Fog::get_singleton()->fog_volume_get_size(fog_volume) / 2;
 
 			if (volume_type != RS::FOG_VOLUME_SHAPE_WORLD) {
 				// Local fog volume.
@@ -683,9 +683,9 @@ void Fog::volumetric_fog_update(const VolumetricFogSettings &p_settings, const P
 			push_constant.position[0] = position.x;
 			push_constant.position[1] = position.y;
 			push_constant.position[2] = position.z;
-			push_constant.extents[0] = extents.x;
-			push_constant.extents[1] = extents.y;
-			push_constant.extents[2] = extents.z;
+			push_constant.size[0] = extents.x * 2;
+			push_constant.size[1] = extents.y * 2;
+			push_constant.size[2] = extents.z * 2;
 			push_constant.corner[0] = min.x;
 			push_constant.corner[1] = min.y;
 			push_constant.corner[2] = min.z;
diff --git a/servers/rendering/renderer_rd/environment/fog.h b/servers/rendering/renderer_rd/environment/fog.h
index eb0a2fc7b5..0b6bcc29fb 100644
--- a/servers/rendering/renderer_rd/environment/fog.h
+++ b/servers/rendering/renderer_rd/environment/fog.h
@@ -53,7 +53,7 @@ private:
 
 	struct FogVolume {
 		RID material;
-		Vector3 extents = Vector3(1, 1, 1);
+		Vector3 size = Vector3(2, 2, 2);
 
 		RS::FogVolumeShape shape = RS::FOG_VOLUME_SHAPE_BOX;
 
@@ -83,7 +83,7 @@ private:
 			float position[3];
 			float pad;
 
-			float extents[3];
+			float size[3];
 			float pad2;
 
 			int32_t corner[3];
@@ -239,12 +239,12 @@ public:
 	Dependency *fog_volume_get_dependency(RID p_fog_volume) const;
 
 	virtual void fog_volume_set_shape(RID p_fog_volume, RS::FogVolumeShape p_shape) override;
-	virtual void fog_volume_set_extents(RID p_fog_volume, const Vector3 &p_extents) override;
+	virtual void fog_volume_set_size(RID p_fog_volume, const Vector3 &p_size) override;
 	virtual void fog_volume_set_material(RID p_fog_volume, RID p_material) override;
 	virtual RS::FogVolumeShape fog_volume_get_shape(RID p_fog_volume) const override;
 	RID fog_volume_get_material(RID p_fog_volume) const;
 	virtual AABB fog_volume_get_aabb(RID p_fog_volume) const override;
-	Vector3 fog_volume_get_extents(RID p_fog_volume) const;
+	Vector3 fog_volume_get_size(RID p_fog_volume) const;
 
 	/* FOG VOLUMES INSTANCE */
 
diff --git a/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.cpp b/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.cpp
index ad63d3fd4b..c440765b33 100644
--- a/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.cpp
+++ b/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.cpp
@@ -1232,9 +1232,9 @@ void RenderForwardClustered::_update_volumetric_fog(Ref<RenderSceneBuffersRD> p_
 
 /* Lighting */
 
-void RenderForwardClustered::setup_added_reflection_probe(const Transform3D &p_transform, const Vector3 &p_half_extents) {
+void RenderForwardClustered::setup_added_reflection_probe(const Transform3D &p_transform, const Vector3 &p_half_size) {
 	if (current_cluster_builder != nullptr) {
-		current_cluster_builder->add_box(ClusterBuilderRD::BOX_TYPE_REFLECTION_PROBE, p_transform, p_half_extents);
+		current_cluster_builder->add_box(ClusterBuilderRD::BOX_TYPE_REFLECTION_PROBE, p_transform, p_half_size);
 	}
 }
 
@@ -1244,9 +1244,9 @@ void RenderForwardClustered::setup_added_light(const RS::LightType p_type, const
 	}
 }
 
-void RenderForwardClustered::setup_added_decal(const Transform3D &p_transform, const Vector3 &p_half_extents) {
+void RenderForwardClustered::setup_added_decal(const Transform3D &p_transform, const Vector3 &p_half_size) {
 	if (current_cluster_builder != nullptr) {
-		current_cluster_builder->add_box(ClusterBuilderRD::BOX_TYPE_DECAL, p_transform, p_half_extents);
+		current_cluster_builder->add_box(ClusterBuilderRD::BOX_TYPE_DECAL, p_transform, p_half_size);
 	}
 }
 
@@ -2617,8 +2617,8 @@ void RenderForwardClustered::_render_sdfgi(Ref<RenderSceneBuffersRD> p_render_bu
 	render_list[RENDER_LIST_SECONDARY].sort_by_key();
 	_fill_instance_data(RENDER_LIST_SECONDARY);
 
-	Vector3 half_extents = p_bounds.size * 0.5;
-	Vector3 center = p_bounds.position + half_extents;
+	Vector3 half_size = p_bounds.size * 0.5;
+	Vector3 center = p_bounds.position + half_size;
 
 	Vector<RID> sbs = {
 		p_albedo_texture,
@@ -2646,16 +2646,16 @@ void RenderForwardClustered::_render_sdfgi(Ref<RenderSceneBuffersRD> p_render_bu
 		fb_size.x = p_size[right_axis];
 		fb_size.y = p_size[up_axis];
 
-		scene_data.cam_transform.origin = center + axis * half_extents;
+		scene_data.cam_transform.origin = center + axis * half_size;
 		scene_data.cam_transform.basis.set_column(0, right);
 		scene_data.cam_transform.basis.set_column(1, up);
 		scene_data.cam_transform.basis.set_column(2, axis);
 
 		//print_line("pass: " + itos(i) + " xform " + scene_data.cam_transform);
 
-		float h_size = half_extents[right_axis];
-		float v_size = half_extents[up_axis];
-		float d_size = half_extents[i] * 2.0;
+		float h_size = half_size[right_axis];
+		float v_size = half_size[up_axis];
+		float d_size = half_size[i] * 2.0;
 		scene_data.cam_projection.set_orthogonal(-h_size, h_size, -v_size, v_size, 0, d_size);
 		//print_line("pass: " + itos(i) + " cam hsize: " + rtos(h_size) + " vsize: " + rtos(v_size) + " dsize " + rtos(d_size));
 
diff --git a/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.h b/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.h
index 9245f1b13a..8eb17ba6f4 100644
--- a/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.h
+++ b/servers/rendering/renderer_rd/forward_clustered/render_forward_clustered.h
@@ -640,9 +640,9 @@ public:
 	RendererRD::SSEffects *get_ss_effects() { return ss_effects; }
 
 	/* callback from updating our lighting UBOs, used to populate cluster builder */
-	virtual void setup_added_reflection_probe(const Transform3D &p_transform, const Vector3 &p_half_extents) override;
+	virtual void setup_added_reflection_probe(const Transform3D &p_transform, const Vector3 &p_half_size) override;
 	virtual void setup_added_light(const RS::LightType p_type, const Transform3D &p_transform, float p_radius, float p_spot_aperture) override;
-	virtual void setup_added_decal(const Transform3D &p_transform, const Vector3 &p_half_extents) override;
+	virtual void setup_added_decal(const Transform3D &p_transform, const Vector3 &p_half_size) override;
 
 	virtual void base_uniforms_changed() override;
 	_FORCE_INLINE_ virtual void update_uniform_sets() override {
diff --git a/servers/rendering/renderer_rd/renderer_scene_render_rd.h b/servers/rendering/renderer_rd/renderer_scene_render_rd.h
index 6fa2f7a570..7c43021eb0 100644
--- a/servers/rendering/renderer_rd/renderer_scene_render_rd.h
+++ b/servers/rendering/renderer_rd/renderer_scene_render_rd.h
@@ -204,9 +204,9 @@ public:
 
 	/* LIGHTING */
 
-	virtual void setup_added_reflection_probe(const Transform3D &p_transform, const Vector3 &p_half_extents){};
+	virtual void setup_added_reflection_probe(const Transform3D &p_transform, const Vector3 &p_half_size){};
 	virtual void setup_added_light(const RS::LightType p_type, const Transform3D &p_transform, float p_radius, float p_spot_aperture){};
-	virtual void setup_added_decal(const Transform3D &p_transform, const Vector3 &p_half_extents){};
+	virtual void setup_added_decal(const Transform3D &p_transform, const Vector3 &p_half_size){};
 
 	/* GI */
 
diff --git a/servers/rendering/renderer_rd/shaders/environment/volumetric_fog.glsl b/servers/rendering/renderer_rd/shaders/environment/volumetric_fog.glsl
index 4658afd02d..8e4f5762fd 100644
--- a/servers/rendering/renderer_rd/shaders/environment/volumetric_fog.glsl
+++ b/servers/rendering/renderer_rd/shaders/environment/volumetric_fog.glsl
@@ -37,7 +37,7 @@ layout(push_constant, std430) uniform Params {
 	vec3 position;
 	float pad;
 
-	vec3 extents;
+	vec3 size;
 	float pad2;
 
 	ivec3 corner;
@@ -184,36 +184,37 @@ void main() {
 	vec4 local_pos = params.transform * world;
 	local_pos.xyz /= local_pos.w;
 
+	vec3 half_size = params.size / 2.0;
 	float sdf = -1.0;
 	if (params.shape == 0) {
 		// Ellipsoid
 		// https://www.shadertoy.com/view/tdS3DG
-		float k0 = length(local_pos.xyz / params.extents);
-		float k1 = length(local_pos.xyz / (params.extents * params.extents));
+		float k0 = length(local_pos.xyz / half_size);
+		float k1 = length(local_pos.xyz / (half_size * half_size));
 		sdf = k0 * (k0 - 1.0) / k1;
 	} else if (params.shape == 1) {
 		// Cone
 		// https://iquilezles.org/www/articles/distfunctions/distfunctions.htm
 
-		// Compute the cone angle automatically to fit within the volume's extents.
-		float inv_height = 1.0 / max(0.001, params.extents.y);
-		float radius = 1.0 / max(0.001, (min(params.extents.x, params.extents.z) * 0.5));
+		// Compute the cone angle automatically to fit within the volume's size.
+		float inv_height = 1.0 / max(0.001, half_size.y);
+		float radius = 1.0 / max(0.001, (min(half_size.x, half_size.z) * 0.5));
 		float hypotenuse = sqrt(radius * radius + inv_height * inv_height);
 		float rsin = radius / hypotenuse;
 		float rcos = inv_height / hypotenuse;
 		vec2 c = vec2(rsin, rcos);
 
 		float q = length(local_pos.xz);
-		sdf = max(dot(c, vec2(q, local_pos.y - params.extents.y)), -params.extents.y - local_pos.y);
+		sdf = max(dot(c, vec2(q, local_pos.y - half_size.y)), -half_size.y - local_pos.y);
 	} else if (params.shape == 2) {
 		// Cylinder
 		// https://iquilezles.org/www/articles/distfunctions/distfunctions.htm
-		vec2 d = abs(vec2(length(local_pos.xz), local_pos.y)) - vec2(min(params.extents.x, params.extents.z), params.extents.y);
+		vec2 d = abs(vec2(length(local_pos.xz), local_pos.y)) - vec2(min(half_size.x, half_size.z), half_size.y);
 		sdf = min(max(d.x, d.y), 0.0) + length(max(d, 0.0));
 	} else if (params.shape == 3) {
 		// Box
 		// https://iquilezles.org/www/articles/distfunctions/distfunctions.htm
-		vec3 q = abs(local_pos.xyz) - params.extents;
+		vec3 q = abs(local_pos.xyz) - half_size;
 		sdf = length(max(q, 0.0)) + min(max(q.x, max(q.y, q.z)), 0.0);
 	}
 
@@ -222,7 +223,7 @@ void main() {
 #ifndef SDF_USED
 		cull_mask = 1.0 - smoothstep(-0.1, 0.0, sdf);
 #endif
-		uvw = clamp((local_pos.xyz + params.extents) / (2.0 * params.extents), 0.0, 1.0);
+		uvw = clamp((local_pos.xyz + half_size) / params.size, 0.0, 1.0);
 	}
 
 	if (cull_mask > 0.0) {
diff --git a/servers/rendering/renderer_rd/storage_rd/light_storage.cpp b/servers/rendering/renderer_rd/storage_rd/light_storage.cpp
index 33e35a7a64..96bed459a0 100644
--- a/servers/rendering/renderer_rd/storage_rd/light_storage.cpp
+++ b/servers/rendering/renderer_rd/storage_rd/light_storage.cpp
@@ -1064,14 +1064,14 @@ void LightStorage::reflection_probe_set_max_distance(RID p_probe, float p_distan
 	reflection_probe->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_REFLECTION_PROBE);
 }
 
-void LightStorage::reflection_probe_set_extents(RID p_probe, const Vector3 &p_extents) {
+void LightStorage::reflection_probe_set_size(RID p_probe, const Vector3 &p_size) {
 	ReflectionProbe *reflection_probe = reflection_probe_owner.get_or_null(p_probe);
 	ERR_FAIL_COND(!reflection_probe);
 
-	if (reflection_probe->extents == p_extents) {
+	if (reflection_probe->size == p_size) {
 		return;
 	}
-	reflection_probe->extents = p_extents;
+	reflection_probe->size = p_size;
 	reflection_probe->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_REFLECTION_PROBE);
 }
 
@@ -1143,8 +1143,8 @@ AABB LightStorage::reflection_probe_get_aabb(RID p_probe) const {
 	ERR_FAIL_COND_V(!reflection_probe, AABB());
 
 	AABB aabb;
-	aabb.position = -reflection_probe->extents;
-	aabb.size = reflection_probe->extents * 2.0;
+	aabb.position = -reflection_probe->size / 2;
+	aabb.size = reflection_probe->size;
 
 	return aabb;
 }
@@ -1163,11 +1163,11 @@ uint32_t LightStorage::reflection_probe_get_cull_mask(RID p_probe) const {
 	return reflection_probe->cull_mask;
 }
 
-Vector3 LightStorage::reflection_probe_get_extents(RID p_probe) const {
+Vector3 LightStorage::reflection_probe_get_size(RID p_probe) const {
 	const ReflectionProbe *reflection_probe = reflection_probe_owner.get_or_null(p_probe);
 	ERR_FAIL_COND_V(!reflection_probe, Vector3());
 
-	return reflection_probe->extents;
+	return reflection_probe->size;
 }
 
 Vector3 LightStorage::reflection_probe_get_origin_offset(RID p_probe) const {
@@ -1668,7 +1668,7 @@ void LightStorage::update_reflection_probe_buffer(RenderDataRD *p_render_data, c
 
 		ReflectionData &reflection_ubo = reflections[i];
 
-		Vector3 extents = probe->extents;
+		Vector3 extents = probe->size / 2;
 
 		rpi->cull_mask = probe->cull_mask;
 
diff --git a/servers/rendering/renderer_rd/storage_rd/light_storage.h b/servers/rendering/renderer_rd/storage_rd/light_storage.h
index d359219128..68f439ddef 100644
--- a/servers/rendering/renderer_rd/storage_rd/light_storage.h
+++ b/servers/rendering/renderer_rd/storage_rd/light_storage.h
@@ -226,7 +226,7 @@ private:
 		Color ambient_color;
 		float ambient_color_energy = 1.0;
 		float max_distance = 0;
-		Vector3 extents = Vector3(10, 10, 10);
+		Vector3 size = Vector3(20, 20, 20);
 		Vector3 origin_offset;
 		bool interior = false;
 		bool box_projection = false;
@@ -791,7 +791,7 @@ public:
 	virtual void reflection_probe_set_ambient_color(RID p_probe, const Color &p_color) override;
 	virtual void reflection_probe_set_ambient_energy(RID p_probe, float p_energy) override;
 	virtual void reflection_probe_set_max_distance(RID p_probe, float p_distance) override;
-	virtual void reflection_probe_set_extents(RID p_probe, const Vector3 &p_extents) override;
+	virtual void reflection_probe_set_size(RID p_probe, const Vector3 &p_size) override;
 	virtual void reflection_probe_set_origin_offset(RID p_probe, const Vector3 &p_offset) override;
 	virtual void reflection_probe_set_as_interior(RID p_probe, bool p_enable) override;
 	virtual void reflection_probe_set_enable_box_projection(RID p_probe, bool p_enable) override;
@@ -805,7 +805,7 @@ public:
 	virtual AABB reflection_probe_get_aabb(RID p_probe) const override;
 	virtual RS::ReflectionProbeUpdateMode reflection_probe_get_update_mode(RID p_probe) const override;
 	virtual uint32_t reflection_probe_get_cull_mask(RID p_probe) const override;
-	virtual Vector3 reflection_probe_get_extents(RID p_probe) const override;
+	virtual Vector3 reflection_probe_get_size(RID p_probe) const override;
 	virtual Vector3 reflection_probe_get_origin_offset(RID p_probe) const override;
 	virtual float reflection_probe_get_origin_max_distance(RID p_probe) const override;
 	virtual float reflection_probe_get_mesh_lod_threshold(RID p_probe) const override;
diff --git a/servers/rendering/renderer_rd/storage_rd/texture_storage.cpp b/servers/rendering/renderer_rd/storage_rd/texture_storage.cpp
index 2eaa7824fb..5d845ce510 100644
--- a/servers/rendering/renderer_rd/storage_rd/texture_storage.cpp
+++ b/servers/rendering/renderer_rd/storage_rd/texture_storage.cpp
@@ -1853,10 +1853,10 @@ void TextureStorage::decal_free(RID p_rid) {
 	decal_owner.free(p_rid);
 }
 
-void TextureStorage::decal_set_extents(RID p_decal, const Vector3 &p_extents) {
+void TextureStorage::decal_set_size(RID p_decal, const Vector3 &p_size) {
 	Decal *decal = decal_owner.get_or_null(p_decal);
 	ERR_FAIL_COND(!decal);
-	decal->extents = p_extents;
+	decal->size = p_size;
 	decal->dependency.changed_notify(Dependency::DEPENDENCY_CHANGED_AABB);
 }
 
@@ -1949,7 +1949,7 @@ AABB TextureStorage::decal_get_aabb(RID p_decal) const {
 	Decal *decal = decal_owner.get_or_null(p_decal);
 	ERR_FAIL_COND_V(!decal, AABB());
 
-	return AABB(-decal->extents, decal->extents * 2.0);
+	return AABB(-decal->size / 2, decal->size);
 }
 
 Dependency *TextureStorage::decal_get_dependency(RID p_decal) {
@@ -2312,7 +2312,7 @@ void TextureStorage::update_decal_buffer(const PagedArray<RID> &p_decals, const
 
 		DecalData &dd = decals[i];
 
-		Vector3 decal_extents = decal->extents;
+		Vector3 decal_extents = decal->size / 2;
 
 		Transform3D scale_xform;
 		scale_xform.basis.scale(decal_extents);
diff --git a/servers/rendering/renderer_rd/storage_rd/texture_storage.h b/servers/rendering/renderer_rd/storage_rd/texture_storage.h
index ea0df0b459..aeab3bf3cb 100644
--- a/servers/rendering/renderer_rd/storage_rd/texture_storage.h
+++ b/servers/rendering/renderer_rd/storage_rd/texture_storage.h
@@ -235,7 +235,7 @@ private:
 	} decal_atlas;
 
 	struct Decal {
-		Vector3 extents = Vector3(1, 1, 1);
+		Vector3 size = Vector3(2, 2, 2);
 		RID textures[RS::DECAL_TEXTURE_MAX];
 		float emission_energy = 1.0;
 		float albedo_mix = 1.0;
@@ -561,7 +561,7 @@ public:
 	virtual void decal_initialize(RID p_decal) override;
 	virtual void decal_free(RID p_rid) override;
 
-	virtual void decal_set_extents(RID p_decal, const Vector3 &p_extents) override;
+	virtual void decal_set_size(RID p_decal, const Vector3 &p_size) override;
 	virtual void decal_set_texture(RID p_decal, RS::DecalTexture p_type, RID p_texture) override;
 	virtual void decal_set_emission_energy(RID p_decal, float p_energy) override;
 	virtual void decal_set_albedo_mix(RID p_decal, float p_mix) override;
@@ -577,9 +577,9 @@ public:
 	virtual void texture_add_to_decal_atlas(RID p_texture, bool p_panorama_to_dp = false) override;
 	virtual void texture_remove_from_decal_atlas(RID p_texture, bool p_panorama_to_dp = false) override;
 
-	_FORCE_INLINE_ Vector3 decal_get_extents(RID p_decal) {
+	_FORCE_INLINE_ Vector3 decal_get_size(RID p_decal) {
 		const Decal *decal = decal_owner.get_or_null(p_decal);
-		return decal->extents;
+		return decal->size;
 	}
 
 	_FORCE_INLINE_ RID decal_get_texture(RID p_decal, RS::DecalTexture p_texture) {