d95794ec8a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
415 lines
13 KiB
C++
415 lines
13 KiB
C++
/**************************************************************************/
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/* immediate_mesh.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "immediate_mesh.h"
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void ImmediateMesh::surface_begin(PrimitiveType p_primitive, const Ref<Material> &p_material) {
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ERR_FAIL_COND_MSG(surface_active, "Already creating a new surface.");
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active_surface_data.primitive = p_primitive;
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active_surface_data.material = p_material;
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surface_active = true;
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}
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void ImmediateMesh::surface_set_color(const Color &p_color) {
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ERR_FAIL_COND_MSG(!surface_active, "Not creating any surface. Use surface_begin() to do it.");
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if (!uses_colors) {
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colors.resize(vertices.size());
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for (uint32_t i = 0; i < colors.size(); i++) {
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colors[i] = p_color;
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}
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uses_colors = true;
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}
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current_color = p_color;
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}
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void ImmediateMesh::surface_set_normal(const Vector3 &p_normal) {
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ERR_FAIL_COND_MSG(!surface_active, "Not creating any surface. Use surface_begin() to do it.");
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if (!uses_normals) {
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normals.resize(vertices.size());
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for (uint32_t i = 0; i < normals.size(); i++) {
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normals[i] = p_normal;
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}
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uses_normals = true;
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}
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current_normal = p_normal;
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}
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void ImmediateMesh::surface_set_tangent(const Plane &p_tangent) {
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ERR_FAIL_COND_MSG(!surface_active, "Not creating any surface. Use surface_begin() to do it.");
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if (!uses_tangents) {
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tangents.resize(vertices.size());
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for (uint32_t i = 0; i < tangents.size(); i++) {
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tangents[i] = p_tangent;
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}
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uses_tangents = true;
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}
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current_tangent = p_tangent;
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}
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void ImmediateMesh::surface_set_uv(const Vector2 &p_uv) {
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ERR_FAIL_COND_MSG(!surface_active, "Not creating any surface. Use surface_begin() to do it.");
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if (!uses_uvs) {
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uvs.resize(vertices.size());
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for (uint32_t i = 0; i < uvs.size(); i++) {
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uvs[i] = p_uv;
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}
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uses_uvs = true;
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}
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current_uv = p_uv;
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}
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void ImmediateMesh::surface_set_uv2(const Vector2 &p_uv2) {
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ERR_FAIL_COND_MSG(!surface_active, "Not creating any surface. Use surface_begin() to do it.");
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if (!uses_uv2s) {
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uv2s.resize(vertices.size());
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for (uint32_t i = 0; i < uv2s.size(); i++) {
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uv2s[i] = p_uv2;
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}
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uses_uv2s = true;
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}
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current_uv2 = p_uv2;
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}
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void ImmediateMesh::surface_add_vertex(const Vector3 &p_vertex) {
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ERR_FAIL_COND_MSG(!surface_active, "Not creating any surface. Use surface_begin() to do it.");
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ERR_FAIL_COND_MSG(vertices.size() && active_surface_data.vertex_2d, "Can't mix 2D and 3D vertices in a surface.");
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if (uses_colors) {
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colors.push_back(current_color);
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}
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if (uses_normals) {
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normals.push_back(current_normal);
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}
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if (uses_tangents) {
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tangents.push_back(current_tangent);
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}
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if (uses_uvs) {
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uvs.push_back(current_uv);
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}
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if (uses_uv2s) {
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uv2s.push_back(current_uv2);
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}
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vertices.push_back(p_vertex);
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}
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void ImmediateMesh::surface_add_vertex_2d(const Vector2 &p_vertex) {
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ERR_FAIL_COND_MSG(!surface_active, "Not creating any surface. Use surface_begin() to do it.");
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ERR_FAIL_COND_MSG(vertices.size() && !active_surface_data.vertex_2d, "Can't mix 2D and 3D vertices in a surface.");
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if (uses_colors) {
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colors.push_back(current_color);
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}
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if (uses_normals) {
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normals.push_back(current_normal);
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}
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if (uses_tangents) {
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tangents.push_back(current_tangent);
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}
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if (uses_uvs) {
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uvs.push_back(current_uv);
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}
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if (uses_uv2s) {
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uv2s.push_back(current_uv2);
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}
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Vector3 v(p_vertex.x, p_vertex.y, 0);
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vertices.push_back(v);
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active_surface_data.vertex_2d = true;
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}
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void ImmediateMesh::surface_end() {
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ERR_FAIL_COND_MSG(!surface_active, "Not creating any surface. Use surface_begin() to do it.");
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ERR_FAIL_COND_MSG(!vertices.size(), "No vertices were added, surface can't be created.");
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uint32_t format = ARRAY_FORMAT_VERTEX;
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uint32_t vertex_stride = 0;
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if (active_surface_data.vertex_2d) {
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format |= ARRAY_FLAG_USE_2D_VERTICES;
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vertex_stride = sizeof(float) * 2;
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} else {
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vertex_stride = sizeof(float) * 3;
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}
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uint32_t normal_offset = 0;
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if (uses_normals) {
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format |= ARRAY_FORMAT_NORMAL;
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normal_offset = vertex_stride;
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vertex_stride += sizeof(uint32_t);
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}
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uint32_t tangent_offset = 0;
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if (uses_tangents) {
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format |= ARRAY_FORMAT_TANGENT;
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tangent_offset += vertex_stride;
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vertex_stride += sizeof(uint32_t);
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}
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AABB aabb;
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{
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surface_vertex_create_cache.resize(vertex_stride * vertices.size());
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uint8_t *surface_vertex_ptr = surface_vertex_create_cache.ptrw();
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for (uint32_t i = 0; i < vertices.size(); i++) {
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{
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float *vtx = (float *)&surface_vertex_ptr[i * vertex_stride];
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vtx[0] = vertices[i].x;
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vtx[1] = vertices[i].y;
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if (!active_surface_data.vertex_2d) {
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vtx[2] = vertices[i].z;
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}
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if (i == 0) {
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aabb = AABB(vertices[i], SMALL_VEC3); // Must have a bit of size.
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} else {
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aabb.expand_to(vertices[i]);
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}
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}
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if (uses_normals) {
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uint32_t *normal = (uint32_t *)&surface_vertex_ptr[i * vertex_stride + normal_offset];
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Vector3 n = normals[i] * Vector3(0.5, 0.5, 0.5) + Vector3(0.5, 0.5, 0.5);
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uint32_t value = 0;
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value |= CLAMP(int(n.x * 1023.0), 0, 1023);
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value |= CLAMP(int(n.y * 1023.0), 0, 1023) << 10;
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value |= CLAMP(int(n.z * 1023.0), 0, 1023) << 20;
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*normal = value;
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}
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if (uses_tangents) {
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uint32_t *tangent = (uint32_t *)&surface_vertex_ptr[i * vertex_stride + tangent_offset];
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Plane t = tangents[i];
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uint32_t value = 0;
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value |= CLAMP(int((t.normal.x * 0.5 + 0.5) * 1023.0), 0, 1023);
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value |= CLAMP(int((t.normal.y * 0.5 + 0.5) * 1023.0), 0, 1023) << 10;
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value |= CLAMP(int((t.normal.z * 0.5 + 0.5) * 1023.0), 0, 1023) << 20;
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if (t.d > 0) {
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value |= 3UL << 30;
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}
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*tangent = value;
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}
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}
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}
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if (uses_colors || uses_uvs || uses_uv2s) {
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uint32_t attribute_stride = 0;
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if (uses_colors) {
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format |= ARRAY_FORMAT_COLOR;
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attribute_stride += sizeof(uint8_t) * 4;
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}
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uint32_t uv_offset = 0;
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if (uses_uvs) {
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format |= ARRAY_FORMAT_TEX_UV;
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uv_offset = attribute_stride;
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attribute_stride += sizeof(float) * 2;
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}
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uint32_t uv2_offset = 0;
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if (uses_uv2s) {
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format |= ARRAY_FORMAT_TEX_UV2;
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uv2_offset = attribute_stride;
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attribute_stride += sizeof(float) * 2;
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}
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surface_attribute_create_cache.resize(vertices.size() * attribute_stride);
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uint8_t *surface_attribute_ptr = surface_attribute_create_cache.ptrw();
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for (uint32_t i = 0; i < vertices.size(); i++) {
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if (uses_colors) {
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uint8_t *color8 = (uint8_t *)&surface_attribute_ptr[i * attribute_stride];
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color8[0] = uint8_t(CLAMP(colors[i].r * 255.0, 0.0, 255.0));
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color8[1] = uint8_t(CLAMP(colors[i].g * 255.0, 0.0, 255.0));
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color8[2] = uint8_t(CLAMP(colors[i].b * 255.0, 0.0, 255.0));
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color8[3] = uint8_t(CLAMP(colors[i].a * 255.0, 0.0, 255.0));
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}
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if (uses_uvs) {
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float *uv = (float *)&surface_attribute_ptr[i * attribute_stride + uv_offset];
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uv[0] = uvs[i].x;
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uv[1] = uvs[i].y;
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}
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if (uses_uv2s) {
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float *uv2 = (float *)&surface_attribute_ptr[i * attribute_stride + uv2_offset];
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uv2[0] = uv2s[i].x;
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uv2[1] = uv2s[i].y;
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}
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}
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}
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RS::SurfaceData sd;
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sd.primitive = RS::PrimitiveType(active_surface_data.primitive);
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sd.format = format;
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sd.vertex_data = surface_vertex_create_cache;
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if (uses_colors || uses_uvs || uses_uv2s) {
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sd.attribute_data = surface_attribute_create_cache;
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}
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sd.vertex_count = vertices.size();
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sd.aabb = aabb;
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if (active_surface_data.material.is_valid()) {
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sd.material = active_surface_data.material->get_rid();
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}
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RS::get_singleton()->mesh_add_surface(mesh, sd);
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active_surface_data.aabb = aabb;
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active_surface_data.format = format;
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active_surface_data.array_len = vertices.size();
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surfaces.push_back(active_surface_data);
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colors.clear();
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normals.clear();
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tangents.clear();
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uvs.clear();
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uv2s.clear();
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vertices.clear();
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uses_colors = false;
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uses_normals = false;
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uses_tangents = false;
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uses_uvs = false;
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uses_uv2s = false;
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surface_active = false;
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}
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void ImmediateMesh::clear_surfaces() {
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RS::get_singleton()->mesh_clear(mesh);
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surfaces.clear();
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surface_active = false;
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colors.clear();
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normals.clear();
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tangents.clear();
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uvs.clear();
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uv2s.clear();
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vertices.clear();
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uses_colors = false;
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uses_normals = false;
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uses_tangents = false;
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uses_uvs = false;
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uses_uv2s = false;
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}
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int ImmediateMesh::get_surface_count() const {
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return surfaces.size();
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}
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int ImmediateMesh::surface_get_array_len(int p_idx) const {
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ERR_FAIL_INDEX_V(p_idx, int(surfaces.size()), -1);
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return surfaces[p_idx].array_len;
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}
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int ImmediateMesh::surface_get_array_index_len(int p_idx) const {
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return 0;
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}
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Array ImmediateMesh::surface_get_arrays(int p_surface) const {
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ERR_FAIL_INDEX_V(p_surface, int(surfaces.size()), Array());
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return RS::get_singleton()->mesh_surface_get_arrays(mesh, p_surface);
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}
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TypedArray<Array> ImmediateMesh::surface_get_blend_shape_arrays(int p_surface) const {
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return TypedArray<Array>();
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}
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Dictionary ImmediateMesh::surface_get_lods(int p_surface) const {
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return Dictionary();
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}
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uint32_t ImmediateMesh::surface_get_format(int p_idx) const {
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ERR_FAIL_INDEX_V(p_idx, int(surfaces.size()), 0);
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return surfaces[p_idx].format;
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}
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Mesh::PrimitiveType ImmediateMesh::surface_get_primitive_type(int p_idx) const {
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ERR_FAIL_INDEX_V(p_idx, int(surfaces.size()), PRIMITIVE_MAX);
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return surfaces[p_idx].primitive;
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}
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void ImmediateMesh::surface_set_material(int p_idx, const Ref<Material> &p_material) {
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ERR_FAIL_INDEX(p_idx, int(surfaces.size()));
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surfaces[p_idx].material = p_material;
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RID mat;
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if (p_material.is_valid()) {
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mat = p_material->get_rid();
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}
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RS::get_singleton()->mesh_surface_set_material(mesh, p_idx, mat);
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}
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Ref<Material> ImmediateMesh::surface_get_material(int p_idx) const {
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ERR_FAIL_INDEX_V(p_idx, int(surfaces.size()), Ref<Material>());
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return surfaces[p_idx].material;
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}
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int ImmediateMesh::get_blend_shape_count() const {
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return 0;
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}
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StringName ImmediateMesh::get_blend_shape_name(int p_index) const {
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return StringName();
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}
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void ImmediateMesh::set_blend_shape_name(int p_index, const StringName &p_name) {
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}
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AABB ImmediateMesh::get_aabb() const {
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AABB aabb;
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for (uint32_t i = 0; i < surfaces.size(); i++) {
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if (i == 0) {
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aabb = surfaces[i].aabb;
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} else {
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aabb = aabb.merge(surfaces[i].aabb);
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}
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}
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return aabb;
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}
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void ImmediateMesh::_bind_methods() {
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ClassDB::bind_method(D_METHOD("surface_begin", "primitive", "material"), &ImmediateMesh::surface_begin, DEFVAL(Ref<Material>()));
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ClassDB::bind_method(D_METHOD("surface_set_color", "color"), &ImmediateMesh::surface_set_color);
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ClassDB::bind_method(D_METHOD("surface_set_normal", "normal"), &ImmediateMesh::surface_set_normal);
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ClassDB::bind_method(D_METHOD("surface_set_tangent", "tangent"), &ImmediateMesh::surface_set_tangent);
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ClassDB::bind_method(D_METHOD("surface_set_uv", "uv"), &ImmediateMesh::surface_set_uv);
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ClassDB::bind_method(D_METHOD("surface_set_uv2", "uv2"), &ImmediateMesh::surface_set_uv2);
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ClassDB::bind_method(D_METHOD("surface_add_vertex", "vertex"), &ImmediateMesh::surface_add_vertex);
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ClassDB::bind_method(D_METHOD("surface_add_vertex_2d", "vertex"), &ImmediateMesh::surface_add_vertex_2d);
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ClassDB::bind_method(D_METHOD("surface_end"), &ImmediateMesh::surface_end);
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ClassDB::bind_method(D_METHOD("clear_surfaces"), &ImmediateMesh::clear_surfaces);
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}
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RID ImmediateMesh::get_rid() const {
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return mesh;
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}
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ImmediateMesh::ImmediateMesh() {
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mesh = RS::get_singleton()->mesh_create();
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}
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ImmediateMesh::~ImmediateMesh() {
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ERR_FAIL_NULL(RenderingServer::get_singleton());
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RS::get_singleton()->free(mesh);
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}
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