Relintai/mesh_utils
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Cleaned up unnecessary allocations and locals.

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Relintai 2021-09-29 10:51:56 +02:00
parent d2bfd13a7e
commit 9c450d98a0
1 changed files with 15 additions and 70 deletions
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83
mesh_utils.cpp
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@ -464,6 +464,8 @@ Array MeshUtils::remove_doubles_interpolate_normals(Array arr) const {
}
PoolVector2Array MeshUtils::uv_unwrap(Array arrays) const {
float p_texel_size = 0.05;
LocalVector<float> vertices;
LocalVector<float> normals;
LocalVector<int> indices;
@ -529,38 +531,16 @@ PoolVector2Array MeshUtils::uv_unwrap(Array arrays) const {
}
}
//unwrap
float p_texel_size = 0.05;
float *p_vertices = vertices.ptr();
float *p_normals = normals.ptr();
int p_vertex_count = vertices.size() / 3;
int *p_indices = indices.ptr();
int p_index_count = indices.size();
int *r_vertex;
int *r_index;
float *r_uv;
int r_vertex_count;
int r_index_count;
int r_size_hint_x;
int r_size_hint_y;
//&gen_uvs, &gen_vertices, &gen_vertex_count,
//&gen_indices, &gen_index_count, &size_x, &size_y);
//float **r_uv, int **r_vertex, int *r_vertex_count,
//int **r_index, int *r_index_count, int *r_size_hint_x, int *r_size_hint_y
// set up input mesh
xatlas_mu::MeshDecl input_mesh;
input_mesh.indexData = p_indices;
input_mesh.indexCount = p_index_count;
input_mesh.indexData = indices.ptr();
input_mesh.indexCount = indices.size();
input_mesh.indexFormat = xatlas_mu::IndexFormat::UInt32;
input_mesh.vertexCount = p_vertex_count;
input_mesh.vertexPositionData = p_vertices;
input_mesh.vertexCount = vertices.size() / 3;
input_mesh.vertexPositionData = vertices.ptr();
input_mesh.vertexPositionStride = sizeof(float) * 3;
input_mesh.vertexNormalData = p_normals;
input_mesh.vertexNormalData = normals.ptr();
input_mesh.vertexNormalStride = sizeof(uint32_t) * 3;
input_mesh.vertexUvData = nullptr;
input_mesh.vertexUvStride = 0;
@ -581,11 +561,8 @@ PoolVector2Array MeshUtils::uv_unwrap(Array arrays) const {
xatlas_mu::Generate(atlas, chart_options, pack_options);
r_size_hint_x = atlas->width;
r_size_hint_y = atlas->height;
float w = r_size_hint_x;
float h = r_size_hint_y;
float w = atlas->width;
float h = atlas->height;
if (w == 0 || h == 0) {
xatlas_mu::Destroy(atlas);
@ -594,52 +571,20 @@ PoolVector2Array MeshUtils::uv_unwrap(Array arrays) const {
const xatlas_mu::Mesh &output = atlas->meshes[0];
r_vertex = (int *)malloc(sizeof(int) * output.vertexCount);
ERR_FAIL_NULL_V_MSG(*r_vertex, PoolVector2Array(), "Out of memory.");
r_uv = (float *)malloc(sizeof(float) * output.vertexCount * 2);
ERR_FAIL_NULL_V_MSG(*r_uv, PoolVector2Array(), "Out of memory.");
r_index = (int *)malloc(sizeof(int) * output.indexCount);
ERR_FAIL_NULL_V_MSG(*r_index, PoolVector2Array(), "Out of memory.");
float max_x = 0;
float max_y = 0;
for (uint32_t i = 0; i < output.vertexCount; i++) {
uint32_t vind = output.vertexArray[i].xref;
r_vertex[i] = vind;
r_uv[vind * 2 + 0] = output.vertexArray[i].uv[0] / w;
r_uv[vind * 2 + 1] = output.vertexArray[i].uv[1] / h;
max_x = MAX(max_x, output.vertexArray[i].uv[0]);
max_y = MAX(max_y, output.vertexArray[i].uv[1]);
}
r_vertex_count = output.vertexCount;
for (uint32_t i = 0; i < output.indexCount; i++) {
r_index[i] = output.indexArray[i];
}
r_index_count = output.indexCount;
xatlas_mu::Destroy(atlas);
PoolVector2Array retarr;
retarr.resize(r_vertex_count);
retarr.resize(output.vertexCount);
PoolVector2Array::Write retarrw = retarr.write();
for (int i = 0; i < r_vertex_count; ++i) {
int uvind = i * 2;
for (uint32_t i = 0; i < output.vertexCount; i++) {
int vind = output.vertexArray[i].xref;
retarrw[i] = Vector2(r_uv[uvind], r_uv[uvind + 1]);
retarrw[vind] = Vector2(output.vertexArray[i].uv[0] / w, output.vertexArray[i].uv[1] / h);
}
retarrw.release();
//free stuff
::free(r_vertex);
::free(r_index);
::free(r_uv);
xatlas_mu::Destroy(atlas);
return retarr;
}