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Diffstat (limited to 'scene/resources/immediate_mesh.cpp')
| -rw-r--r-- | scene/resources/immediate_mesh.cpp | 413 |
1 files changed, 413 insertions, 0 deletions
diff --git a/scene/resources/immediate_mesh.cpp b/scene/resources/immediate_mesh.cpp new file mode 100644 index 0000000000..fe7124de9e --- /dev/null +++ b/scene/resources/immediate_mesh.cpp @@ -0,0 +1,413 @@ +/*************************************************************************/ +/* immediate_mesh.cpp */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 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 "immediate_mesh.h" + +void ImmediateMesh::surface_begin(PrimitiveType p_primitive, const Ref<Material> &p_material) { + ERR_FAIL_COND_MSG(surface_active, "Already creating a new surface."); + active_surface_data.primitive = p_primitive; + active_surface_data.material = p_material; + surface_active = true; +} +void ImmediateMesh::surface_set_color(const Color &p_color) { + ERR_FAIL_COND_MSG(!surface_active, "Not creating any surface. Use surface_begin() to do it."); + + if (!uses_colors) { + colors.resize(vertices.size()); + for (uint32_t i = 0; i < colors.size(); i++) { + colors[i] = p_color; + } + uses_colors = true; + } + + current_color = p_color; +} +void ImmediateMesh::surface_set_normal(const Vector3 &p_normal) { + ERR_FAIL_COND_MSG(!surface_active, "Not creating any surface. Use surface_begin() to do it."); + + if (!uses_normals) { + normals.resize(vertices.size()); + for (uint32_t i = 0; i < normals.size(); i++) { + normals[i] = p_normal; + } + uses_normals = true; + } + + current_normal = p_normal; +} +void ImmediateMesh::surface_set_tangent(const Plane &p_tangent) { + ERR_FAIL_COND_MSG(!surface_active, "Not creating any surface. Use surface_begin() to do it."); + if (!uses_tangents) { + tangents.resize(vertices.size()); + for (uint32_t i = 0; i < tangents.size(); i++) { + tangents[i] = p_tangent; + } + uses_tangents = true; + } + + current_tangent = p_tangent; +} +void ImmediateMesh::surface_set_uv(const Vector2 &p_uv) { + ERR_FAIL_COND_MSG(!surface_active, "Not creating any surface. Use surface_begin() to do it."); + if (!uses_uvs) { + uvs.resize(vertices.size()); + for (uint32_t i = 0; i < uvs.size(); i++) { + uvs[i] = p_uv; + } + uses_uvs = true; + } + + current_uv = p_uv; +} +void ImmediateMesh::surface_set_uv2(const Vector2 &p_uv2) { + ERR_FAIL_COND_MSG(!surface_active, "Not creating any surface. Use surface_begin() to do it."); + if (!uses_uv2s) { + uv2s.resize(vertices.size()); + for (uint32_t i = 0; i < uv2s.size(); i++) { + uv2s[i] = p_uv2; + } + uses_uv2s = true; + } + + current_uv2 = p_uv2; +} +void ImmediateMesh::surface_add_vertex(const Vector3 &p_vertex) { + ERR_FAIL_COND_MSG(!surface_active, "Not creating any surface. Use surface_begin() to do it."); + ERR_FAIL_COND_MSG(vertices.size() && active_surface_data.vertex_2d, "Can't mix 2D and 3D vertices in a surface."); + + if (uses_colors) { + colors.push_back(current_color); + } + if (uses_normals) { + normals.push_back(current_normal); + } + if (uses_tangents) { + tangents.push_back(current_tangent); + } + if (uses_uvs) { + uvs.push_back(current_uv); + } + if (uses_uv2s) { + uv2s.push_back(current_uv2); + } + vertices.push_back(p_vertex); +} + +void ImmediateMesh::surface_add_vertex_2d(const Vector2 &p_vertex) { + ERR_FAIL_COND_MSG(!surface_active, "Not creating any surface. Use surface_begin() to do it."); + ERR_FAIL_COND_MSG(vertices.size() && !active_surface_data.vertex_2d, "Can't mix 2D and 3D vertices in a surface."); + + if (uses_colors) { + colors.push_back(current_color); + } + if (uses_normals) { + normals.push_back(current_normal); + } + if (uses_tangents) { + tangents.push_back(current_tangent); + } + if (uses_uvs) { + uvs.push_back(current_uv); + } + if (uses_uv2s) { + uv2s.push_back(current_uv2); + } + Vector3 v(p_vertex.x, p_vertex.y, 0); + vertices.push_back(v); + + active_surface_data.vertex_2d = true; +} +void ImmediateMesh::surface_end() { + ERR_FAIL_COND_MSG(!surface_active, "Not creating any surface. Use surface_begin() to do it."); + ERR_FAIL_COND_MSG(!vertices.size(), "No vertices were added, surface can't be created."); + + uint32_t format = ARRAY_FORMAT_VERTEX; + + uint32_t vertex_stride = 0; + if (active_surface_data.vertex_2d) { + format |= ARRAY_FLAG_USE_2D_VERTICES; + vertex_stride = sizeof(float) * 2; + } else { + vertex_stride = sizeof(float) * 3; + } + + uint32_t normal_offset = 0; + if (uses_normals) { + format |= ARRAY_FORMAT_NORMAL; + normal_offset = vertex_stride; + vertex_stride += sizeof(uint32_t); + } + uint32_t tangent_offset = 0; + if (uses_tangents) { + format |= ARRAY_FORMAT_TANGENT; + tangent_offset += vertex_stride; + vertex_stride += sizeof(uint32_t); + } + + AABB aabb; + + { + surface_vertex_create_cache.resize(vertex_stride * vertices.size()); + uint8_t *surface_vertex_ptr = surface_vertex_create_cache.ptrw(); + for (uint32_t i = 0; i < vertices.size(); i++) { + { + float *vtx = (float *)&surface_vertex_ptr[i * vertex_stride]; + vtx[0] = vertices[i].x; + vtx[1] = vertices[i].y; + if (!active_surface_data.vertex_2d) { + vtx[2] = vertices[i].z; + } + if (i == 0) { + aabb.position = vertices[i]; + } else { + aabb.expand_to(vertices[i]); + } + } + if (uses_normals) { + uint32_t *normal = (uint32_t *)&surface_vertex_ptr[i * vertex_stride + normal_offset]; + + Vector3 n = normals[i] * Vector3(0.5, 0.5, 0.5) + Vector3(0.5, 0.5, 0.5); + + uint32_t value = 0; + value |= CLAMP(int(n.x * 1023.0), 0, 1023); + value |= CLAMP(int(n.y * 1023.0), 0, 1023) << 10; + value |= CLAMP(int(n.z * 1023.0), 0, 1023) << 20; + + *normal = value; + } + if (uses_tangents) { + uint32_t *tangent = (uint32_t *)&surface_vertex_ptr[i * vertex_stride + tangent_offset]; + Plane t = tangents[i]; + uint32_t value = 0; + value |= CLAMP(int((t.normal.x * 0.5 + 0.5) * 1023.0), 0, 1023); + value |= CLAMP(int((t.normal.y * 0.5 + 0.5) * 1023.0), 0, 1023) << 10; + value |= CLAMP(int((t.normal.z * 0.5 + 0.5) * 1023.0), 0, 1023) << 20; + if (t.d > 0) { + value |= 3 << 30; + } + + *tangent = value; + } + } + } + + if (uses_colors || uses_uvs || uses_uv2s) { + uint32_t attribute_stride = 0; + + if (uses_colors) { + format |= ARRAY_FORMAT_COLOR; + attribute_stride += sizeof(uint8_t) * 4; + } + uint32_t uv_offset = 0; + if (uses_uvs) { + format |= ARRAY_FORMAT_TEX_UV; + uv_offset = attribute_stride; + attribute_stride += sizeof(float) * 2; + } + uint32_t uv2_offset = 0; + if (uses_uv2s) { + format |= ARRAY_FORMAT_TEX_UV2; + uv2_offset = attribute_stride; + attribute_stride += sizeof(float) * 2; + } + + surface_attribute_create_cache.resize(vertices.size() * attribute_stride); + + uint8_t *surface_attribute_ptr = surface_attribute_create_cache.ptrw(); + + for (uint32_t i = 0; i < vertices.size(); i++) { + if (uses_colors) { + uint8_t *color8 = (uint8_t *)&surface_attribute_ptr[i * attribute_stride]; + + color8[0] = uint8_t(CLAMP(colors[i].r * 255.0, 0.0, 255.0)); + color8[1] = uint8_t(CLAMP(colors[i].g * 255.0, 0.0, 255.0)); + color8[2] = uint8_t(CLAMP(colors[i].b * 255.0, 0.0, 255.0)); + color8[3] = uint8_t(CLAMP(colors[i].a * 255.0, 0.0, 255.0)); + } + if (uses_uvs) { + float *uv = (float *)&surface_attribute_ptr[i * attribute_stride + uv_offset]; + + uv[0] = uvs[i].x; + uv[1] = uvs[i].y; + } + + if (uses_uv2s) { + float *uv2 = (float *)&surface_attribute_ptr[i * attribute_stride + uv2_offset]; + + uv2[0] = uv2s[i].x; + uv2[1] = uv2s[i].y; + } + } + } + + RS::SurfaceData sd; + + sd.primitive = RS::PrimitiveType(active_surface_data.primitive); + sd.format = format; + sd.vertex_data = surface_vertex_create_cache; + if (uses_colors || uses_uvs || uses_uv2s) { + sd.attribute_data = surface_attribute_create_cache; + } + sd.vertex_count = vertices.size(); + sd.aabb = aabb; + if (active_surface_data.material.is_valid()) { + sd.material = active_surface_data.material->get_rid(); + } + + RS::get_singleton()->mesh_add_surface(mesh, sd); + + active_surface_data.aabb = aabb; + + active_surface_data.format = format; + active_surface_data.array_len = vertices.size(); + + surfaces.push_back(active_surface_data); + + colors.clear(); + normals.clear(); + tangents.clear(); + uvs.clear(); + uv2s.clear(); + vertices.clear(); + + uses_colors = false; + uses_normals = false; + uses_tangents = false; + uses_uvs = false; + uses_uv2s = false; + + surface_active = false; +} + +void ImmediateMesh::clear_surfaces() { + RS::get_singleton()->mesh_clear(mesh); + surfaces.clear(); + surface_active = false; + + colors.clear(); + normals.clear(); + tangents.clear(); + uvs.clear(); + uv2s.clear(); + vertices.clear(); + + uses_colors = false; + uses_normals = false; + uses_tangents = false; + uses_uvs = false; + uses_uv2s = false; +} + +int ImmediateMesh::get_surface_count() const { + return surfaces.size(); +} +int ImmediateMesh::surface_get_array_len(int p_idx) const { + ERR_FAIL_INDEX_V(p_idx, int(surfaces.size()), -1); + return surfaces[p_idx].array_len; +} +int ImmediateMesh::surface_get_array_index_len(int p_idx) const { + return 0; +} +Array ImmediateMesh::surface_get_arrays(int p_surface) const { + ERR_FAIL_INDEX_V(p_surface, int(surfaces.size()), Array()); + return RS::get_singleton()->mesh_surface_get_arrays(mesh, p_surface); +} +Array ImmediateMesh::surface_get_blend_shape_arrays(int p_surface) const { + return Array(); +} +Dictionary ImmediateMesh::surface_get_lods(int p_surface) const { + return Dictionary(); +} +uint32_t ImmediateMesh::surface_get_format(int p_idx) const { + ERR_FAIL_INDEX_V(p_idx, int(surfaces.size()), 0); + return surfaces[p_idx].format; +} +Mesh::PrimitiveType ImmediateMesh::surface_get_primitive_type(int p_idx) const { + ERR_FAIL_INDEX_V(p_idx, int(surfaces.size()), PRIMITIVE_MAX); + return surfaces[p_idx].primitive; +} +void ImmediateMesh::surface_set_material(int p_idx, const Ref<Material> &p_material) { + ERR_FAIL_INDEX(p_idx, int(surfaces.size())); + surfaces[p_idx].material = p_material; + RID mat; + if (p_material.is_valid()) { + mat = p_material->get_rid(); + } + RS::get_singleton()->mesh_surface_set_material(mesh, p_idx, mat); +} +Ref<Material> ImmediateMesh::surface_get_material(int p_idx) const { + ERR_FAIL_INDEX_V(p_idx, int(surfaces.size()), Ref<Material>()); + return surfaces[p_idx].material; +} +int ImmediateMesh::get_blend_shape_count() const { + return 0; +} +StringName ImmediateMesh::get_blend_shape_name(int p_index) const { + return StringName(); +} +void ImmediateMesh::set_blend_shape_name(int p_index, const StringName &p_name) { +} + +AABB ImmediateMesh::get_aabb() const { + AABB aabb; + for (uint32_t i = 0; i < surfaces.size(); i++) { + if (i == 0) { + aabb = surfaces[i].aabb; + } else { + aabb.merge(surfaces[i].aabb); + } + } + return aabb; +} + +void ImmediateMesh::_bind_methods() { + ClassDB::bind_method(D_METHOD("surface_begin", "primitive", "material"), &ImmediateMesh::surface_begin, DEFVAL(Ref<Material>())); + ClassDB::bind_method(D_METHOD("surface_set_color", "color"), &ImmediateMesh::surface_set_color); + ClassDB::bind_method(D_METHOD("surface_set_normal", "normal"), &ImmediateMesh::surface_set_normal); + ClassDB::bind_method(D_METHOD("surface_set_tangent", "tangent"), &ImmediateMesh::surface_set_tangent); + ClassDB::bind_method(D_METHOD("surface_set_uv", "uv"), &ImmediateMesh::surface_set_uv); + ClassDB::bind_method(D_METHOD("surface_set_uv2", "uv2"), &ImmediateMesh::surface_set_uv2); + ClassDB::bind_method(D_METHOD("surface_add_vertex", "vertex"), &ImmediateMesh::surface_add_vertex); + ClassDB::bind_method(D_METHOD("surface_add_vertex_2d", "vertex"), &ImmediateMesh::surface_add_vertex_2d); + ClassDB::bind_method(D_METHOD("surface_end"), &ImmediateMesh::surface_end); + + ClassDB::bind_method(D_METHOD("clear_surfaces"), &ImmediateMesh::clear_surfaces); +} + +RID ImmediateMesh::get_rid() const { + return mesh; +} + +ImmediateMesh::ImmediateMesh() { + mesh = RS::get_singleton()->mesh_create(); +} +ImmediateMesh::~ImmediateMesh() { + RS::get_singleton()->free(mesh); +} |