65 lines
1.4 KiB
C++
65 lines
1.4 KiB
C++
#include "mesh_builder.h"
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namespace dmc {
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Ref<ArrayMesh> MeshBuilder::commit(bool wireframe) {
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if (_positions.size() == 0) {
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return Ref<ArrayMesh>();
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}
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ERR_FAIL_COND_V(_indices.size() % 3 != 0, Ref<ArrayMesh>());
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if (wireframe) {
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// Debug purpose, no effort to be fast here
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std::vector<int> wireframe_indices;
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for (int i = 0; i < _indices.size(); i += 3) {
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wireframe_indices.push_back(_indices[i]);
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wireframe_indices.push_back(_indices[i + 1]);
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wireframe_indices.push_back(_indices[i + 1]);
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wireframe_indices.push_back(_indices[i + 2]);
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wireframe_indices.push_back(_indices[i + 2]);
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wireframe_indices.push_back(_indices[i]);
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}
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_indices = wireframe_indices;
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}
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PoolVector3Array positions;
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PoolVector3Array normals;
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PoolIntArray indices;
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raw_copy_to(positions, _positions);
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raw_copy_to(normals, _normals);
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raw_copy_to(indices, _indices);
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clear();
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Array surface;
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surface.resize(Mesh::ARRAY_MAX);
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surface[Mesh::ARRAY_VERTEX] = positions;
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surface[Mesh::ARRAY_NORMAL] = normals;
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surface[Mesh::ARRAY_INDEX] = indices;
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Ref<ArrayMesh> mesh;
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mesh.instance();
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mesh->add_surface_from_arrays(wireframe ? Mesh::PRIMITIVE_LINES : Mesh::PRIMITIVE_TRIANGLES, surface);
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return mesh;
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}
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void MeshBuilder::clear() {
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_positions.clear();
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_normals.clear();
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_indices.clear();
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_position_to_index.clear();
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_reused_vertices = 0;
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}
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} // namespace dmc
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