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Merge pull request #58548 from V-Sekai/lod_lightmaps

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Allow automatic lod when importing 3D scenes with Static Lightmaps
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JFonS 2022-03-01 10:23:25 +01:00 • committed by GitHub
commit 73f92a6e4d
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2 changed files with 14 additions and 10 deletions
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8
scene/resources/importer_mesh.cpp
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@ -275,6 +275,7 @@ void ImporterMesh::generate_lods(float p_normal_merge_angle, float p_normal_spli
PackedInt32Array indices = surfaces[i].arrays[RS::ARRAY_INDEX];
Vector<Vector3> normals = surfaces[i].arrays[RS::ARRAY_NORMAL];
Vector<Vector2> uvs = surfaces[i].arrays[RS::ARRAY_TEX_UV];
Vector<Vector2> uv2s = surfaces[i].arrays[RS::ARRAY_TEX_UV2];
unsigned int index_count = indices.size();
unsigned int vertex_count = vertices.size();
@ -313,6 +314,7 @@ void ImporterMesh::generate_lods(float p_normal_merge_angle, float p_normal_spli
LocalVector<Vector3> merged_normals;
LocalVector<int> merged_normals_counts;
const Vector2 *uvs_ptr = uvs.ptr();
const Vector2 *uv2s_ptr = uv2s.ptr();
for (unsigned int j = 0; j < vertex_count; j++) {
const Vector3 &v = vertices_ptr[j];
@ -327,8 +329,10 @@ void ImporterMesh::generate_lods(float p_normal_merge_angle, float p_normal_spli
for (unsigned int k = 0; k < close_verts.size(); k++) {
const Pair<int, int> &idx = close_verts[k];
// TODO check more attributes?
if ((!uvs_ptr || uvs_ptr[j].distance_squared_to(uvs_ptr[idx.second]) < CMP_EPSILON2) && normals[idx.second].dot(n) > normal_merge_threshold) {
bool is_uvs_close = (!uvs_ptr || uvs_ptr[j].distance_squared_to(uvs_ptr[idx.second]) < CMP_EPSILON2);
bool is_uv2s_close = (!uv2s_ptr || uv2s_ptr[j].distance_squared_to(uv2s_ptr[idx.second]) < CMP_EPSILON2);
bool is_normals_close = normals[idx.second].dot(n) > normal_merge_threshold;
if (is_uvs_close && is_uv2s_close && is_normals_close) {
vertex_remap.push_back(idx.first);
merged_normals[idx.first] += normals[idx.second];
merged_normals_counts[idx.first]++;