mirror of
https://github.com/Relintai/pandemonium_engine.git
synced 2024-12-21 03:16:54 +01:00
1071 lines
30 KiB
C++
1071 lines
30 KiB
C++
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/*************************************************************************/
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/* surface_tool.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) 2007-2022 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */
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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 "surface_tool.h"
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#include "core/method_bind_ext.gen.inc"
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#define _VERTEX_SNAP 0.0001
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#define EQ_VERTEX_DIST 0.00001
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bool SurfaceTool::Vertex::operator==(const Vertex &p_vertex) const {
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if (vertex != p_vertex.vertex) {
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return false;
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}
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if (uv != p_vertex.uv) {
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return false;
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}
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if (uv2 != p_vertex.uv2) {
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return false;
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}
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if (normal != p_vertex.normal) {
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return false;
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}
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if (binormal != p_vertex.binormal) {
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return false;
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}
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if (color != p_vertex.color) {
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return false;
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}
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if (bones.size() != p_vertex.bones.size()) {
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return false;
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}
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for (int i = 0; i < bones.size(); i++) {
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if (bones[i] != p_vertex.bones[i]) {
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return false;
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}
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}
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for (int i = 0; i < weights.size(); i++) {
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if (weights[i] != p_vertex.weights[i]) {
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return false;
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}
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}
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return true;
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}
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uint32_t SurfaceTool::VertexHasher::hash(const Vertex &p_vtx) {
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uint32_t h = hash_djb2_buffer((const uint8_t *)&p_vtx.vertex, sizeof(real_t) * 3);
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h = hash_djb2_buffer((const uint8_t *)&p_vtx.normal, sizeof(real_t) * 3, h);
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h = hash_djb2_buffer((const uint8_t *)&p_vtx.binormal, sizeof(real_t) * 3, h);
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h = hash_djb2_buffer((const uint8_t *)&p_vtx.tangent, sizeof(real_t) * 3, h);
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h = hash_djb2_buffer((const uint8_t *)&p_vtx.uv, sizeof(real_t) * 2, h);
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h = hash_djb2_buffer((const uint8_t *)&p_vtx.uv2, sizeof(real_t) * 2, h);
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h = hash_djb2_buffer((const uint8_t *)&p_vtx.color, sizeof(real_t) * 4, h);
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h = hash_djb2_buffer((const uint8_t *)p_vtx.bones.ptr(), p_vtx.bones.size() * sizeof(int), h);
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h = hash_djb2_buffer((const uint8_t *)p_vtx.weights.ptr(), p_vtx.weights.size() * sizeof(float), h);
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return h;
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}
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void SurfaceTool::begin(Mesh::PrimitiveType p_primitive) {
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clear();
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primitive = p_primitive;
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begun = true;
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first = true;
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}
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void SurfaceTool::add_vertex(const Vector3 &p_vertex) {
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ERR_FAIL_COND(!begun);
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Vertex vtx;
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vtx.vertex = p_vertex;
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vtx.color = last_color;
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vtx.normal = last_normal;
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vtx.uv = last_uv;
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vtx.uv2 = last_uv2;
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vtx.weights = last_weights;
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vtx.bones = last_bones;
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vtx.tangent = last_tangent.normal;
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vtx.binormal = last_normal.cross(last_tangent.normal).normalized() * last_tangent.d;
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const int expected_vertices = 4;
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if ((format & Mesh::ARRAY_FORMAT_WEIGHTS || format & Mesh::ARRAY_FORMAT_BONES) && (vtx.weights.size() != expected_vertices || vtx.bones.size() != expected_vertices)) {
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//ensure vertices are the expected amount
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ERR_FAIL_COND(vtx.weights.size() != vtx.bones.size());
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if (vtx.weights.size() < expected_vertices) {
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//less than required, fill
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for (int i = vtx.weights.size(); i < expected_vertices; i++) {
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vtx.weights.push_back(0);
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vtx.bones.push_back(0);
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}
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} else if (vtx.weights.size() > expected_vertices) {
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//more than required, sort, cap and normalize.
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Vector<WeightSort> weights;
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for (int i = 0; i < vtx.weights.size(); i++) {
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WeightSort ws;
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ws.index = vtx.bones[i];
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ws.weight = vtx.weights[i];
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weights.push_back(ws);
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}
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//sort
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weights.sort();
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//cap
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weights.resize(expected_vertices);
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//renormalize
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float total = 0;
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for (int i = 0; i < expected_vertices; i++) {
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total += weights[i].weight;
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}
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vtx.weights.resize(expected_vertices);
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vtx.bones.resize(expected_vertices);
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for (int i = 0; i < expected_vertices; i++) {
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if (total > 0) {
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vtx.weights.write[i] = weights[i].weight / total;
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} else {
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vtx.weights.write[i] = 0;
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}
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vtx.bones.write[i] = weights[i].index;
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}
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}
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}
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vertex_array.push_back(vtx);
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first = false;
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format |= Mesh::ARRAY_FORMAT_VERTEX;
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}
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void SurfaceTool::add_color(Color p_color) {
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ERR_FAIL_COND(!begun);
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ERR_FAIL_COND(!first && !(format & Mesh::ARRAY_FORMAT_COLOR));
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format |= Mesh::ARRAY_FORMAT_COLOR;
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last_color = p_color;
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}
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void SurfaceTool::add_normal(const Vector3 &p_normal) {
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ERR_FAIL_COND(!begun);
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ERR_FAIL_COND(!first && !(format & Mesh::ARRAY_FORMAT_NORMAL));
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format |= Mesh::ARRAY_FORMAT_NORMAL;
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last_normal = p_normal;
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}
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void SurfaceTool::add_tangent(const Plane &p_tangent) {
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ERR_FAIL_COND(!begun);
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ERR_FAIL_COND(!first && !(format & Mesh::ARRAY_FORMAT_TANGENT));
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format |= Mesh::ARRAY_FORMAT_TANGENT;
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last_tangent = p_tangent;
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}
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void SurfaceTool::add_uv(const Vector2 &p_uv) {
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ERR_FAIL_COND(!begun);
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ERR_FAIL_COND(!first && !(format & Mesh::ARRAY_FORMAT_TEX_UV));
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format |= Mesh::ARRAY_FORMAT_TEX_UV;
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last_uv = p_uv;
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}
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void SurfaceTool::add_uv2(const Vector2 &p_uv2) {
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ERR_FAIL_COND(!begun);
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ERR_FAIL_COND(!first && !(format & Mesh::ARRAY_FORMAT_TEX_UV2));
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format |= Mesh::ARRAY_FORMAT_TEX_UV2;
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last_uv2 = p_uv2;
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}
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void SurfaceTool::add_bones(const Vector<int> &p_bones) {
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ERR_FAIL_COND(!begun);
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ERR_FAIL_COND(!first && !(format & Mesh::ARRAY_FORMAT_BONES));
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format |= Mesh::ARRAY_FORMAT_BONES;
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last_bones = p_bones;
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}
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void SurfaceTool::add_weights(const Vector<float> &p_weights) {
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ERR_FAIL_COND(!begun);
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ERR_FAIL_COND(!first && !(format & Mesh::ARRAY_FORMAT_WEIGHTS));
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format |= Mesh::ARRAY_FORMAT_WEIGHTS;
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last_weights = p_weights;
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}
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void SurfaceTool::add_smooth_group(bool p_smooth) {
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ERR_FAIL_COND(!begun);
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if (index_array.size()) {
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smooth_groups[index_array.size()] = p_smooth;
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} else {
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smooth_groups[vertex_array.size()] = p_smooth;
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}
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}
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void SurfaceTool::add_triangle_fan(const Vector<Vector3> &p_vertices, const Vector<Vector2> &p_uvs, const Vector<Color> &p_colors, const Vector<Vector2> &p_uv2s, const Vector<Vector3> &p_normals, const Vector<Plane> &p_tangents) {
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ERR_FAIL_COND(!begun);
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ERR_FAIL_COND(primitive != Mesh::PRIMITIVE_TRIANGLES);
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ERR_FAIL_COND(p_vertices.size() < 3);
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#define ADD_POINT(n) \
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{ \
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if (p_colors.size() > n) \
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add_color(p_colors[n]); \
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if (p_uvs.size() > n) \
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add_uv(p_uvs[n]); \
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if (p_uv2s.size() > n) \
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add_uv2(p_uv2s[n]); \
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if (p_normals.size() > n) \
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add_normal(p_normals[n]); \
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if (p_tangents.size() > n) \
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add_tangent(p_tangents[n]); \
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add_vertex(p_vertices[n]); \
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}
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for (int i = 0; i < p_vertices.size() - 2; i++) {
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ADD_POINT(0);
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ADD_POINT(i + 1);
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ADD_POINT(i + 2);
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}
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#undef ADD_POINT
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}
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void SurfaceTool::add_index(int p_index) {
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ERR_FAIL_COND(!begun);
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ERR_FAIL_COND(p_index < 0);
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format |= Mesh::ARRAY_FORMAT_INDEX;
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index_array.push_back(p_index);
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}
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Array SurfaceTool::commit_to_arrays() {
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int varr_len = vertex_array.size();
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Array a;
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a.resize(Mesh::ARRAY_MAX);
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for (int i = 0; i < Mesh::ARRAY_MAX; i++) {
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if (!(format & (1 << i))) {
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continue; //not in format
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}
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switch (i) {
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case Mesh::ARRAY_VERTEX:
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case Mesh::ARRAY_NORMAL: {
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PoolVector<Vector3> array;
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array.resize(varr_len);
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PoolVector<Vector3>::Write w = array.write();
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int idx = 0;
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for (List<Vertex>::Element *E = vertex_array.front(); E; E = E->next(), idx++) {
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const Vertex &v = E->get();
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switch (i) {
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case Mesh::ARRAY_VERTEX: {
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w[idx] = v.vertex;
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} break;
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case Mesh::ARRAY_NORMAL: {
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w[idx] = v.normal;
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} break;
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}
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}
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w.release();
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a[i] = array;
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} break;
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case Mesh::ARRAY_TEX_UV:
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case Mesh::ARRAY_TEX_UV2: {
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PoolVector<Vector2> array;
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array.resize(varr_len);
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PoolVector<Vector2>::Write w = array.write();
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int idx = 0;
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for (List<Vertex>::Element *E = vertex_array.front(); E; E = E->next(), idx++) {
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const Vertex &v = E->get();
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switch (i) {
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case Mesh::ARRAY_TEX_UV: {
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w[idx] = v.uv;
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} break;
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case Mesh::ARRAY_TEX_UV2: {
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w[idx] = v.uv2;
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} break;
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}
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}
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w.release();
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a[i] = array;
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} break;
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case Mesh::ARRAY_TANGENT: {
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PoolVector<float> array;
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array.resize(varr_len * 4);
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PoolVector<float>::Write w = array.write();
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int idx = 0;
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for (List<Vertex>::Element *E = vertex_array.front(); E; E = E->next(), idx += 4) {
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const Vertex &v = E->get();
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w[idx + 0] = v.tangent.x;
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w[idx + 1] = v.tangent.y;
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w[idx + 2] = v.tangent.z;
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||
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//float d = v.tangent.dot(v.binormal,v.normal);
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float d = v.binormal.dot(v.normal.cross(v.tangent));
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w[idx + 3] = d < 0 ? -1 : 1;
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}
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w.release();
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a[i] = array;
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||
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} break;
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||
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case Mesh::ARRAY_COLOR: {
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||
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PoolVector<Color> array;
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||
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array.resize(varr_len);
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||
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PoolVector<Color>::Write w = array.write();
|
||
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|
||
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int idx = 0;
|
||
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for (List<Vertex>::Element *E = vertex_array.front(); E; E = E->next(), idx++) {
|
||
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const Vertex &v = E->get();
|
||
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w[idx] = v.color;
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||
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}
|
||
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||
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w.release();
|
||
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a[i] = array;
|
||
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} break;
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||
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case Mesh::ARRAY_BONES: {
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||
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PoolVector<int> array;
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||
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array.resize(varr_len * 4);
|
||
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PoolVector<int>::Write w = array.write();
|
||
|
|
||
|
int idx = 0;
|
||
|
for (List<Vertex>::Element *E = vertex_array.front(); E; E = E->next(), idx += 4) {
|
||
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const Vertex &v = E->get();
|
||
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|
||
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ERR_CONTINUE(v.bones.size() != 4);
|
||
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|
||
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for (int j = 0; j < 4; j++) {
|
||
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w[idx + j] = v.bones[j];
|
||
|
}
|
||
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}
|
||
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|
||
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w.release();
|
||
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a[i] = array;
|
||
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|
||
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} break;
|
||
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case Mesh::ARRAY_WEIGHTS: {
|
||
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PoolVector<float> array;
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||
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array.resize(varr_len * 4);
|
||
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PoolVector<float>::Write w = array.write();
|
||
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|
||
|
int idx = 0;
|
||
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for (List<Vertex>::Element *E = vertex_array.front(); E; E = E->next(), idx += 4) {
|
||
|
const Vertex &v = E->get();
|
||
|
ERR_CONTINUE(v.weights.size() != 4);
|
||
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|
||
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for (int j = 0; j < 4; j++) {
|
||
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w[idx + j] = v.weights[j];
|
||
|
}
|
||
|
}
|
||
|
|
||
|
w.release();
|
||
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a[i] = array;
|
||
|
|
||
|
} break;
|
||
|
case Mesh::ARRAY_INDEX: {
|
||
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ERR_CONTINUE(index_array.size() == 0);
|
||
|
|
||
|
PoolVector<int> array;
|
||
|
array.resize(index_array.size());
|
||
|
PoolVector<int>::Write w = array.write();
|
||
|
|
||
|
int idx = 0;
|
||
|
for (List<int>::Element *E = index_array.front(); E; E = E->next(), idx++) {
|
||
|
w[idx] = E->get();
|
||
|
}
|
||
|
|
||
|
w.release();
|
||
|
|
||
|
a[i] = array;
|
||
|
} break;
|
||
|
|
||
|
default: {
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return a;
|
||
|
}
|
||
|
|
||
|
Ref<ArrayMesh> SurfaceTool::commit(const Ref<ArrayMesh> &p_existing, uint32_t p_flags) {
|
||
|
Ref<ArrayMesh> mesh;
|
||
|
if (p_existing.is_valid()) {
|
||
|
mesh = p_existing;
|
||
|
} else {
|
||
|
mesh.instance();
|
||
|
}
|
||
|
|
||
|
int varr_len = vertex_array.size();
|
||
|
|
||
|
if (varr_len == 0) {
|
||
|
return mesh;
|
||
|
}
|
||
|
|
||
|
int surface = mesh->get_surface_count();
|
||
|
|
||
|
Array a = commit_to_arrays();
|
||
|
|
||
|
mesh->add_surface_from_arrays(primitive, a, Array(), p_flags);
|
||
|
|
||
|
if (material.is_valid()) {
|
||
|
mesh->surface_set_material(surface, material);
|
||
|
}
|
||
|
|
||
|
return mesh;
|
||
|
}
|
||
|
|
||
|
void SurfaceTool::index() {
|
||
|
if (index_array.size()) {
|
||
|
return; //already indexed
|
||
|
}
|
||
|
|
||
|
HashMap<Vertex, int, VertexHasher> indices;
|
||
|
List<Vertex> new_vertices;
|
||
|
|
||
|
for (List<Vertex>::Element *E = vertex_array.front(); E; E = E->next()) {
|
||
|
int *idxptr = indices.getptr(E->get());
|
||
|
int idx;
|
||
|
if (!idxptr) {
|
||
|
idx = indices.size();
|
||
|
new_vertices.push_back(E->get());
|
||
|
indices[E->get()] = idx;
|
||
|
} else {
|
||
|
idx = *idxptr;
|
||
|
}
|
||
|
|
||
|
index_array.push_back(idx);
|
||
|
}
|
||
|
|
||
|
vertex_array.clear();
|
||
|
vertex_array = new_vertices;
|
||
|
|
||
|
format |= Mesh::ARRAY_FORMAT_INDEX;
|
||
|
}
|
||
|
|
||
|
void SurfaceTool::deindex() {
|
||
|
if (index_array.size() == 0) {
|
||
|
return; //nothing to deindex
|
||
|
}
|
||
|
Vector<Vertex> varr;
|
||
|
varr.resize(vertex_array.size());
|
||
|
int idx = 0;
|
||
|
for (List<Vertex>::Element *E = vertex_array.front(); E; E = E->next()) {
|
||
|
varr.write[idx++] = E->get();
|
||
|
}
|
||
|
vertex_array.clear();
|
||
|
for (List<int>::Element *E = index_array.front(); E; E = E->next()) {
|
||
|
ERR_FAIL_INDEX(E->get(), varr.size());
|
||
|
vertex_array.push_back(varr[E->get()]);
|
||
|
}
|
||
|
format &= ~Mesh::ARRAY_FORMAT_INDEX;
|
||
|
index_array.clear();
|
||
|
}
|
||
|
|
||
|
void SurfaceTool::_create_list(const Ref<Mesh> &p_existing, int p_surface, List<Vertex> *r_vertex, List<int> *r_index, int &lformat) {
|
||
|
ERR_FAIL_COND_MSG(p_existing.is_null(), "First argument in SurfaceTool::_create_list() must be a valid object of type Mesh");
|
||
|
Array arr = p_existing->surface_get_arrays(p_surface);
|
||
|
ERR_FAIL_COND(arr.size() != VS::ARRAY_MAX);
|
||
|
_create_list_from_arrays(arr, r_vertex, r_index, lformat);
|
||
|
}
|
||
|
|
||
|
Vector<SurfaceTool::Vertex> SurfaceTool::create_vertex_array_from_triangle_arrays(const Array &p_arrays) {
|
||
|
Vector<SurfaceTool::Vertex> ret;
|
||
|
|
||
|
PoolVector<Vector3> varr = p_arrays[VS::ARRAY_VERTEX];
|
||
|
PoolVector<Vector3> narr = p_arrays[VS::ARRAY_NORMAL];
|
||
|
PoolVector<float> tarr = p_arrays[VS::ARRAY_TANGENT];
|
||
|
PoolVector<Color> carr = p_arrays[VS::ARRAY_COLOR];
|
||
|
PoolVector<Vector2> uvarr = p_arrays[VS::ARRAY_TEX_UV];
|
||
|
PoolVector<Vector2> uv2arr = p_arrays[VS::ARRAY_TEX_UV2];
|
||
|
PoolVector<int> barr = p_arrays[VS::ARRAY_BONES];
|
||
|
PoolVector<float> warr = p_arrays[VS::ARRAY_WEIGHTS];
|
||
|
|
||
|
int vc = varr.size();
|
||
|
|
||
|
if (vc == 0) {
|
||
|
return ret;
|
||
|
}
|
||
|
int lformat = 0;
|
||
|
|
||
|
PoolVector<Vector3>::Read rv;
|
||
|
if (varr.size()) {
|
||
|
lformat |= VS::ARRAY_FORMAT_VERTEX;
|
||
|
rv = varr.read();
|
||
|
}
|
||
|
PoolVector<Vector3>::Read rn;
|
||
|
if (narr.size()) {
|
||
|
lformat |= VS::ARRAY_FORMAT_NORMAL;
|
||
|
rn = narr.read();
|
||
|
}
|
||
|
PoolVector<float>::Read rt;
|
||
|
if (tarr.size()) {
|
||
|
lformat |= VS::ARRAY_FORMAT_TANGENT;
|
||
|
rt = tarr.read();
|
||
|
}
|
||
|
PoolVector<Color>::Read rc;
|
||
|
if (carr.size()) {
|
||
|
lformat |= VS::ARRAY_FORMAT_COLOR;
|
||
|
rc = carr.read();
|
||
|
}
|
||
|
|
||
|
PoolVector<Vector2>::Read ruv;
|
||
|
if (uvarr.size()) {
|
||
|
lformat |= VS::ARRAY_FORMAT_TEX_UV;
|
||
|
ruv = uvarr.read();
|
||
|
}
|
||
|
|
||
|
PoolVector<Vector2>::Read ruv2;
|
||
|
if (uv2arr.size()) {
|
||
|
lformat |= VS::ARRAY_FORMAT_TEX_UV2;
|
||
|
ruv2 = uv2arr.read();
|
||
|
}
|
||
|
|
||
|
PoolVector<int>::Read rb;
|
||
|
if (barr.size()) {
|
||
|
lformat |= VS::ARRAY_FORMAT_BONES;
|
||
|
rb = barr.read();
|
||
|
}
|
||
|
|
||
|
PoolVector<float>::Read rw;
|
||
|
if (warr.size()) {
|
||
|
lformat |= VS::ARRAY_FORMAT_WEIGHTS;
|
||
|
rw = warr.read();
|
||
|
}
|
||
|
|
||
|
for (int i = 0; i < vc; i++) {
|
||
|
Vertex v;
|
||
|
if (lformat & VS::ARRAY_FORMAT_VERTEX) {
|
||
|
v.vertex = varr[i];
|
||
|
}
|
||
|
if (lformat & VS::ARRAY_FORMAT_NORMAL) {
|
||
|
v.normal = narr[i];
|
||
|
}
|
||
|
if (lformat & VS::ARRAY_FORMAT_TANGENT) {
|
||
|
Plane p(tarr[i * 4 + 0], tarr[i * 4 + 1], tarr[i * 4 + 2], tarr[i * 4 + 3]);
|
||
|
v.tangent = p.normal;
|
||
|
v.binormal = p.normal.cross(v.tangent).normalized() * p.d;
|
||
|
}
|
||
|
if (lformat & VS::ARRAY_FORMAT_COLOR) {
|
||
|
v.color = carr[i];
|
||
|
}
|
||
|
if (lformat & VS::ARRAY_FORMAT_TEX_UV) {
|
||
|
v.uv = uvarr[i];
|
||
|
}
|
||
|
if (lformat & VS::ARRAY_FORMAT_TEX_UV2) {
|
||
|
v.uv2 = uv2arr[i];
|
||
|
}
|
||
|
if (lformat & VS::ARRAY_FORMAT_BONES) {
|
||
|
Vector<int> b;
|
||
|
b.resize(4);
|
||
|
b.write[0] = barr[i * 4 + 0];
|
||
|
b.write[1] = barr[i * 4 + 1];
|
||
|
b.write[2] = barr[i * 4 + 2];
|
||
|
b.write[3] = barr[i * 4 + 3];
|
||
|
v.bones = b;
|
||
|
}
|
||
|
if (lformat & VS::ARRAY_FORMAT_WEIGHTS) {
|
||
|
Vector<float> w;
|
||
|
w.resize(4);
|
||
|
w.write[0] = warr[i * 4 + 0];
|
||
|
w.write[1] = warr[i * 4 + 1];
|
||
|
w.write[2] = warr[i * 4 + 2];
|
||
|
w.write[3] = warr[i * 4 + 3];
|
||
|
v.weights = w;
|
||
|
}
|
||
|
|
||
|
ret.push_back(v);
|
||
|
}
|
||
|
|
||
|
return ret;
|
||
|
}
|
||
|
|
||
|
void SurfaceTool::_create_list_from_arrays(Array arr, List<Vertex> *r_vertex, List<int> *r_index, int &lformat) {
|
||
|
PoolVector<Vector3> varr = arr[VS::ARRAY_VERTEX];
|
||
|
PoolVector<Vector3> narr = arr[VS::ARRAY_NORMAL];
|
||
|
PoolVector<float> tarr = arr[VS::ARRAY_TANGENT];
|
||
|
PoolVector<Color> carr = arr[VS::ARRAY_COLOR];
|
||
|
PoolVector<Vector2> uvarr = arr[VS::ARRAY_TEX_UV];
|
||
|
PoolVector<Vector2> uv2arr = arr[VS::ARRAY_TEX_UV2];
|
||
|
PoolVector<int> barr = arr[VS::ARRAY_BONES];
|
||
|
PoolVector<float> warr = arr[VS::ARRAY_WEIGHTS];
|
||
|
|
||
|
int vc = varr.size();
|
||
|
|
||
|
if (vc == 0) {
|
||
|
return;
|
||
|
}
|
||
|
lformat = 0;
|
||
|
|
||
|
PoolVector<Vector3>::Read rv;
|
||
|
if (varr.size()) {
|
||
|
lformat |= VS::ARRAY_FORMAT_VERTEX;
|
||
|
rv = varr.read();
|
||
|
}
|
||
|
PoolVector<Vector3>::Read rn;
|
||
|
if (narr.size()) {
|
||
|
lformat |= VS::ARRAY_FORMAT_NORMAL;
|
||
|
rn = narr.read();
|
||
|
}
|
||
|
PoolVector<float>::Read rt;
|
||
|
if (tarr.size()) {
|
||
|
lformat |= VS::ARRAY_FORMAT_TANGENT;
|
||
|
rt = tarr.read();
|
||
|
}
|
||
|
PoolVector<Color>::Read rc;
|
||
|
if (carr.size()) {
|
||
|
lformat |= VS::ARRAY_FORMAT_COLOR;
|
||
|
rc = carr.read();
|
||
|
}
|
||
|
|
||
|
PoolVector<Vector2>::Read ruv;
|
||
|
if (uvarr.size()) {
|
||
|
lformat |= VS::ARRAY_FORMAT_TEX_UV;
|
||
|
ruv = uvarr.read();
|
||
|
}
|
||
|
|
||
|
PoolVector<Vector2>::Read ruv2;
|
||
|
if (uv2arr.size()) {
|
||
|
lformat |= VS::ARRAY_FORMAT_TEX_UV2;
|
||
|
ruv2 = uv2arr.read();
|
||
|
}
|
||
|
|
||
|
PoolVector<int>::Read rb;
|
||
|
if (barr.size()) {
|
||
|
lformat |= VS::ARRAY_FORMAT_BONES;
|
||
|
rb = barr.read();
|
||
|
}
|
||
|
|
||
|
PoolVector<float>::Read rw;
|
||
|
if (warr.size()) {
|
||
|
lformat |= VS::ARRAY_FORMAT_WEIGHTS;
|
||
|
rw = warr.read();
|
||
|
}
|
||
|
|
||
|
for (int i = 0; i < vc; i++) {
|
||
|
Vertex v;
|
||
|
if (lformat & VS::ARRAY_FORMAT_VERTEX) {
|
||
|
v.vertex = varr[i];
|
||
|
}
|
||
|
if (lformat & VS::ARRAY_FORMAT_NORMAL) {
|
||
|
v.normal = narr[i];
|
||
|
}
|
||
|
if (lformat & VS::ARRAY_FORMAT_TANGENT) {
|
||
|
Plane p(tarr[i * 4 + 0], tarr[i * 4 + 1], tarr[i * 4 + 2], tarr[i * 4 + 3]);
|
||
|
v.tangent = p.normal;
|
||
|
v.binormal = p.normal.cross(v.tangent).normalized() * p.d;
|
||
|
}
|
||
|
if (lformat & VS::ARRAY_FORMAT_COLOR) {
|
||
|
v.color = carr[i];
|
||
|
}
|
||
|
if (lformat & VS::ARRAY_FORMAT_TEX_UV) {
|
||
|
v.uv = uvarr[i];
|
||
|
}
|
||
|
if (lformat & VS::ARRAY_FORMAT_TEX_UV2) {
|
||
|
v.uv2 = uv2arr[i];
|
||
|
}
|
||
|
if (lformat & VS::ARRAY_FORMAT_BONES) {
|
||
|
Vector<int> b;
|
||
|
b.resize(4);
|
||
|
b.write[0] = barr[i * 4 + 0];
|
||
|
b.write[1] = barr[i * 4 + 1];
|
||
|
b.write[2] = barr[i * 4 + 2];
|
||
|
b.write[3] = barr[i * 4 + 3];
|
||
|
v.bones = b;
|
||
|
}
|
||
|
if (lformat & VS::ARRAY_FORMAT_WEIGHTS) {
|
||
|
Vector<float> w;
|
||
|
w.resize(4);
|
||
|
w.write[0] = warr[i * 4 + 0];
|
||
|
w.write[1] = warr[i * 4 + 1];
|
||
|
w.write[2] = warr[i * 4 + 2];
|
||
|
w.write[3] = warr[i * 4 + 3];
|
||
|
v.weights = w;
|
||
|
}
|
||
|
|
||
|
r_vertex->push_back(v);
|
||
|
}
|
||
|
|
||
|
//indices
|
||
|
|
||
|
PoolVector<int> idx = arr[VS::ARRAY_INDEX];
|
||
|
int is = idx.size();
|
||
|
if (is) {
|
||
|
lformat |= VS::ARRAY_FORMAT_INDEX;
|
||
|
PoolVector<int>::Read iarr = idx.read();
|
||
|
for (int i = 0; i < is; i++) {
|
||
|
r_index->push_back(iarr[i]);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void SurfaceTool::create_from_triangle_arrays(const Array &p_arrays) {
|
||
|
clear();
|
||
|
primitive = Mesh::PRIMITIVE_TRIANGLES;
|
||
|
_create_list_from_arrays(p_arrays, &vertex_array, &index_array, format);
|
||
|
}
|
||
|
|
||
|
void SurfaceTool::create_from(const Ref<Mesh> &p_existing, int p_surface) {
|
||
|
ERR_FAIL_COND_MSG(p_existing.is_null(), "First argument in SurfaceTool::create_from() must be a valid object of type Mesh");
|
||
|
clear();
|
||
|
primitive = p_existing->surface_get_primitive_type(p_surface);
|
||
|
_create_list(p_existing, p_surface, &vertex_array, &index_array, format);
|
||
|
material = p_existing->surface_get_material(p_surface);
|
||
|
}
|
||
|
|
||
|
void SurfaceTool::create_from_blend_shape(const Ref<Mesh> &p_existing, int p_surface, const String &p_blend_shape_name) {
|
||
|
ERR_FAIL_COND_MSG(p_existing.is_null(), "First argument in SurfaceTool::create_from_blend_shape() must be a valid object of type Mesh");
|
||
|
clear();
|
||
|
primitive = p_existing->surface_get_primitive_type(p_surface);
|
||
|
Array arr = p_existing->surface_get_blend_shape_arrays(p_surface);
|
||
|
Array blend_shape_names;
|
||
|
int32_t shape_idx = -1;
|
||
|
for (int32_t i = 0; i < p_existing->get_blend_shape_count(); i++) {
|
||
|
String name = p_existing->get_blend_shape_name(i);
|
||
|
if (name == p_blend_shape_name) {
|
||
|
shape_idx = i;
|
||
|
break;
|
||
|
}
|
||
|
}
|
||
|
ERR_FAIL_COND(shape_idx == -1);
|
||
|
ERR_FAIL_COND(shape_idx >= arr.size());
|
||
|
Array mesh = arr[shape_idx];
|
||
|
ERR_FAIL_COND(mesh.size() != VS::ARRAY_MAX);
|
||
|
_create_list_from_arrays(arr[shape_idx], &vertex_array, &index_array, format);
|
||
|
}
|
||
|
|
||
|
void SurfaceTool::append_from(const Ref<Mesh> &p_existing, int p_surface, const Transform &p_xform) {
|
||
|
ERR_FAIL_COND_MSG(p_existing.is_null(), "First argument in SurfaceTool::append_from() must be a valid object of type Mesh");
|
||
|
if (vertex_array.size() == 0) {
|
||
|
primitive = p_existing->surface_get_primitive_type(p_surface);
|
||
|
format = 0;
|
||
|
}
|
||
|
|
||
|
int nformat;
|
||
|
List<Vertex> nvertices;
|
||
|
List<int> nindices;
|
||
|
_create_list(p_existing, p_surface, &nvertices, &nindices, nformat);
|
||
|
format |= nformat;
|
||
|
int vfrom = vertex_array.size();
|
||
|
|
||
|
for (List<Vertex>::Element *E = nvertices.front(); E; E = E->next()) {
|
||
|
Vertex v = E->get();
|
||
|
v.vertex = p_xform.xform(v.vertex);
|
||
|
if (nformat & VS::ARRAY_FORMAT_NORMAL) {
|
||
|
v.normal = p_xform.basis.xform(v.normal);
|
||
|
}
|
||
|
if (nformat & VS::ARRAY_FORMAT_TANGENT) {
|
||
|
v.tangent = p_xform.basis.xform(v.tangent);
|
||
|
v.binormal = p_xform.basis.xform(v.binormal);
|
||
|
}
|
||
|
|
||
|
vertex_array.push_back(v);
|
||
|
}
|
||
|
|
||
|
for (List<int>::Element *E = nindices.front(); E; E = E->next()) {
|
||
|
int dst_index = E->get() + vfrom;
|
||
|
index_array.push_back(dst_index);
|
||
|
}
|
||
|
if (index_array.size() % 3) {
|
||
|
WARN_PRINT("SurfaceTool: Index array not a multiple of 3.");
|
||
|
}
|
||
|
}
|
||
|
|
||
|
//mikktspace callbacks
|
||
|
namespace {
|
||
|
struct TangentGenerationContextUserData {
|
||
|
Vector<List<SurfaceTool::Vertex>::Element *> vertices;
|
||
|
Vector<List<int>::Element *> indices;
|
||
|
};
|
||
|
} // namespace
|
||
|
|
||
|
int SurfaceTool::mikktGetNumFaces(const SMikkTSpaceContext *pContext) {
|
||
|
TangentGenerationContextUserData &triangle_data = *reinterpret_cast<TangentGenerationContextUserData *>(pContext->m_pUserData);
|
||
|
|
||
|
if (triangle_data.indices.size() > 0) {
|
||
|
return triangle_data.indices.size() / 3;
|
||
|
} else {
|
||
|
return triangle_data.vertices.size() / 3;
|
||
|
}
|
||
|
}
|
||
|
int SurfaceTool::mikktGetNumVerticesOfFace(const SMikkTSpaceContext *pContext, const int iFace) {
|
||
|
return 3; //always 3
|
||
|
}
|
||
|
void SurfaceTool::mikktGetPosition(const SMikkTSpaceContext *pContext, float fvPosOut[], const int iFace, const int iVert) {
|
||
|
TangentGenerationContextUserData &triangle_data = *reinterpret_cast<TangentGenerationContextUserData *>(pContext->m_pUserData);
|
||
|
Vector3 v;
|
||
|
if (triangle_data.indices.size() > 0) {
|
||
|
int index = triangle_data.indices[iFace * 3 + iVert]->get();
|
||
|
if (index < triangle_data.vertices.size()) {
|
||
|
v = triangle_data.vertices[index]->get().vertex;
|
||
|
}
|
||
|
} else {
|
||
|
v = triangle_data.vertices[iFace * 3 + iVert]->get().vertex;
|
||
|
}
|
||
|
|
||
|
fvPosOut[0] = v.x;
|
||
|
fvPosOut[1] = v.y;
|
||
|
fvPosOut[2] = v.z;
|
||
|
}
|
||
|
|
||
|
void SurfaceTool::mikktGetNormal(const SMikkTSpaceContext *pContext, float fvNormOut[], const int iFace, const int iVert) {
|
||
|
TangentGenerationContextUserData &triangle_data = *reinterpret_cast<TangentGenerationContextUserData *>(pContext->m_pUserData);
|
||
|
Vector3 v;
|
||
|
if (triangle_data.indices.size() > 0) {
|
||
|
int index = triangle_data.indices[iFace * 3 + iVert]->get();
|
||
|
if (index < triangle_data.vertices.size()) {
|
||
|
v = triangle_data.vertices[index]->get().normal;
|
||
|
}
|
||
|
} else {
|
||
|
v = triangle_data.vertices[iFace * 3 + iVert]->get().normal;
|
||
|
}
|
||
|
|
||
|
fvNormOut[0] = v.x;
|
||
|
fvNormOut[1] = v.y;
|
||
|
fvNormOut[2] = v.z;
|
||
|
}
|
||
|
void SurfaceTool::mikktGetTexCoord(const SMikkTSpaceContext *pContext, float fvTexcOut[], const int iFace, const int iVert) {
|
||
|
TangentGenerationContextUserData &triangle_data = *reinterpret_cast<TangentGenerationContextUserData *>(pContext->m_pUserData);
|
||
|
Vector2 v;
|
||
|
if (triangle_data.indices.size() > 0) {
|
||
|
int index = triangle_data.indices[iFace * 3 + iVert]->get();
|
||
|
if (index < triangle_data.vertices.size()) {
|
||
|
v = triangle_data.vertices[index]->get().uv;
|
||
|
}
|
||
|
} else {
|
||
|
v = triangle_data.vertices[iFace * 3 + iVert]->get().uv;
|
||
|
}
|
||
|
|
||
|
fvTexcOut[0] = v.x;
|
||
|
fvTexcOut[1] = v.y;
|
||
|
}
|
||
|
|
||
|
void SurfaceTool::mikktSetTSpaceDefault(const SMikkTSpaceContext *pContext, const float fvTangent[], const float fvBiTangent[], const float fMagS, const float fMagT,
|
||
|
const tbool bIsOrientationPreserving, const int iFace, const int iVert) {
|
||
|
TangentGenerationContextUserData &triangle_data = *reinterpret_cast<TangentGenerationContextUserData *>(pContext->m_pUserData);
|
||
|
Vertex *vtx = nullptr;
|
||
|
if (triangle_data.indices.size() > 0) {
|
||
|
int index = triangle_data.indices[iFace * 3 + iVert]->get();
|
||
|
if (index < triangle_data.vertices.size()) {
|
||
|
vtx = &triangle_data.vertices[index]->get();
|
||
|
}
|
||
|
} else {
|
||
|
vtx = &triangle_data.vertices[iFace * 3 + iVert]->get();
|
||
|
}
|
||
|
|
||
|
if (vtx != nullptr) {
|
||
|
vtx->tangent = Vector3(fvTangent[0], fvTangent[1], fvTangent[2]);
|
||
|
vtx->binormal = Vector3(-fvBiTangent[0], -fvBiTangent[1], -fvBiTangent[2]); // for some reason these are reversed, something with the coordinate system in Godot
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void SurfaceTool::generate_tangents() {
|
||
|
ERR_FAIL_COND(!(format & Mesh::ARRAY_FORMAT_TEX_UV));
|
||
|
ERR_FAIL_COND(!(format & Mesh::ARRAY_FORMAT_NORMAL));
|
||
|
|
||
|
SMikkTSpaceInterface mkif;
|
||
|
mkif.m_getNormal = mikktGetNormal;
|
||
|
mkif.m_getNumFaces = mikktGetNumFaces;
|
||
|
mkif.m_getNumVerticesOfFace = mikktGetNumVerticesOfFace;
|
||
|
mkif.m_getPosition = mikktGetPosition;
|
||
|
mkif.m_getTexCoord = mikktGetTexCoord;
|
||
|
mkif.m_setTSpace = mikktSetTSpaceDefault;
|
||
|
mkif.m_setTSpaceBasic = nullptr;
|
||
|
|
||
|
SMikkTSpaceContext msc;
|
||
|
msc.m_pInterface = &mkif;
|
||
|
|
||
|
TangentGenerationContextUserData triangle_data;
|
||
|
triangle_data.vertices.resize(vertex_array.size());
|
||
|
int idx = 0;
|
||
|
for (List<Vertex>::Element *E = vertex_array.front(); E; E = E->next()) {
|
||
|
triangle_data.vertices.write[idx++] = E;
|
||
|
E->get().binormal = Vector3();
|
||
|
E->get().tangent = Vector3();
|
||
|
}
|
||
|
triangle_data.indices.resize(index_array.size());
|
||
|
idx = 0;
|
||
|
for (List<int>::Element *E = index_array.front(); E; E = E->next()) {
|
||
|
triangle_data.indices.write[idx++] = E;
|
||
|
}
|
||
|
msc.m_pUserData = &triangle_data;
|
||
|
|
||
|
bool res = genTangSpaceDefault(&msc);
|
||
|
|
||
|
ERR_FAIL_COND(!res);
|
||
|
format |= Mesh::ARRAY_FORMAT_TANGENT;
|
||
|
}
|
||
|
|
||
|
void SurfaceTool::generate_normals(bool p_flip) {
|
||
|
ERR_FAIL_COND(primitive != Mesh::PRIMITIVE_TRIANGLES);
|
||
|
|
||
|
bool was_indexed = index_array.size();
|
||
|
|
||
|
deindex();
|
||
|
|
||
|
HashMap<Vertex, Vector3, VertexHasher> vertex_hash;
|
||
|
|
||
|
int count = 0;
|
||
|
bool smooth = false;
|
||
|
if (smooth_groups.has(0)) {
|
||
|
smooth = smooth_groups[0];
|
||
|
}
|
||
|
|
||
|
List<Vertex>::Element *B = vertex_array.front();
|
||
|
for (List<Vertex>::Element *E = B; E;) {
|
||
|
List<Vertex>::Element *v[3];
|
||
|
v[0] = E;
|
||
|
v[1] = v[0]->next();
|
||
|
ERR_FAIL_COND(!v[1]);
|
||
|
v[2] = v[1]->next();
|
||
|
ERR_FAIL_COND(!v[2]);
|
||
|
E = v[2]->next();
|
||
|
|
||
|
Vector3 normal;
|
||
|
if (!p_flip) {
|
||
|
normal = Plane(v[0]->get().vertex, v[1]->get().vertex, v[2]->get().vertex).normal;
|
||
|
} else {
|
||
|
normal = Plane(v[2]->get().vertex, v[1]->get().vertex, v[0]->get().vertex).normal;
|
||
|
}
|
||
|
|
||
|
if (smooth) {
|
||
|
for (int i = 0; i < 3; i++) {
|
||
|
Vector3 *lv = vertex_hash.getptr(v[i]->get());
|
||
|
if (!lv) {
|
||
|
vertex_hash.set(v[i]->get(), normal);
|
||
|
} else {
|
||
|
(*lv) += normal;
|
||
|
}
|
||
|
}
|
||
|
} else {
|
||
|
for (int i = 0; i < 3; i++) {
|
||
|
v[i]->get().normal = normal;
|
||
|
}
|
||
|
}
|
||
|
count += 3;
|
||
|
|
||
|
if (smooth_groups.has(count) || !E) {
|
||
|
if (vertex_hash.size()) {
|
||
|
while (B != E) {
|
||
|
Vector3 *lv = vertex_hash.getptr(B->get());
|
||
|
if (lv) {
|
||
|
B->get().normal = lv->normalized();
|
||
|
}
|
||
|
|
||
|
B = B->next();
|
||
|
}
|
||
|
|
||
|
} else {
|
||
|
B = E;
|
||
|
}
|
||
|
|
||
|
vertex_hash.clear();
|
||
|
if (E) {
|
||
|
smooth = smooth_groups[count];
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
format |= Mesh::ARRAY_FORMAT_NORMAL;
|
||
|
|
||
|
if (was_indexed) {
|
||
|
index();
|
||
|
smooth_groups.clear();
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void SurfaceTool::set_material(const Ref<Material> &p_material) {
|
||
|
material = p_material;
|
||
|
}
|
||
|
|
||
|
void SurfaceTool::clear() {
|
||
|
begun = false;
|
||
|
primitive = Mesh::PRIMITIVE_LINES;
|
||
|
format = 0;
|
||
|
last_bones.clear();
|
||
|
last_weights.clear();
|
||
|
index_array.clear();
|
||
|
vertex_array.clear();
|
||
|
smooth_groups.clear();
|
||
|
material.unref();
|
||
|
}
|
||
|
|
||
|
void SurfaceTool::_bind_methods() {
|
||
|
ClassDB::bind_method(D_METHOD("begin", "primitive"), &SurfaceTool::begin);
|
||
|
|
||
|
ClassDB::bind_method(D_METHOD("add_vertex", "vertex"), &SurfaceTool::add_vertex);
|
||
|
ClassDB::bind_method(D_METHOD("add_color", "color"), &SurfaceTool::add_color);
|
||
|
ClassDB::bind_method(D_METHOD("add_normal", "normal"), &SurfaceTool::add_normal);
|
||
|
ClassDB::bind_method(D_METHOD("add_tangent", "tangent"), &SurfaceTool::add_tangent);
|
||
|
ClassDB::bind_method(D_METHOD("add_uv", "uv"), &SurfaceTool::add_uv);
|
||
|
ClassDB::bind_method(D_METHOD("add_uv2", "uv2"), &SurfaceTool::add_uv2);
|
||
|
ClassDB::bind_method(D_METHOD("add_bones", "bones"), &SurfaceTool::add_bones);
|
||
|
ClassDB::bind_method(D_METHOD("add_weights", "weights"), &SurfaceTool::add_weights);
|
||
|
ClassDB::bind_method(D_METHOD("add_smooth_group", "smooth"), &SurfaceTool::add_smooth_group);
|
||
|
|
||
|
ClassDB::bind_method(D_METHOD("add_triangle_fan", "vertices", "uvs", "colors", "uv2s", "normals", "tangents"), &SurfaceTool::add_triangle_fan, DEFVAL(Vector<Vector2>()), DEFVAL(Vector<Color>()), DEFVAL(Vector<Vector2>()), DEFVAL(Vector<Vector3>()), DEFVAL(Vector<Plane>()));
|
||
|
|
||
|
ClassDB::bind_method(D_METHOD("add_index", "index"), &SurfaceTool::add_index);
|
||
|
|
||
|
ClassDB::bind_method(D_METHOD("index"), &SurfaceTool::index);
|
||
|
ClassDB::bind_method(D_METHOD("deindex"), &SurfaceTool::deindex);
|
||
|
ClassDB::bind_method(D_METHOD("generate_normals", "flip"), &SurfaceTool::generate_normals, DEFVAL(false));
|
||
|
ClassDB::bind_method(D_METHOD("generate_tangents"), &SurfaceTool::generate_tangents);
|
||
|
|
||
|
ClassDB::bind_method(D_METHOD("set_material", "material"), &SurfaceTool::set_material);
|
||
|
|
||
|
ClassDB::bind_method(D_METHOD("clear"), &SurfaceTool::clear);
|
||
|
|
||
|
ClassDB::bind_method(D_METHOD("create_from", "existing", "surface"), &SurfaceTool::create_from);
|
||
|
ClassDB::bind_method(D_METHOD("create_from_blend_shape", "existing", "surface", "blend_shape"), &SurfaceTool::create_from_blend_shape);
|
||
|
ClassDB::bind_method(D_METHOD("append_from", "existing", "surface", "transform"), &SurfaceTool::append_from);
|
||
|
ClassDB::bind_method(D_METHOD("commit", "existing", "flags"), &SurfaceTool::commit, DEFVAL(Variant()), DEFVAL(Mesh::ARRAY_COMPRESS_DEFAULT));
|
||
|
ClassDB::bind_method(D_METHOD("commit_to_arrays"), &SurfaceTool::commit_to_arrays);
|
||
|
}
|
||
|
|
||
|
SurfaceTool::SurfaceTool() {
|
||
|
first = false;
|
||
|
begun = false;
|
||
|
primitive = Mesh::PRIMITIVE_LINES;
|
||
|
format = 0;
|
||
|
}
|