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paint: unwrap cleanup

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This commit is contained in:
luboslenco
2026-05-03 00:12:20 +02:00
parent 732eaebdb4
commit 2d9ed708f0
4 changed files with 52 additions and 140 deletions
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paint/sources/util_mesh.c
-16
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@@ -422,22 +422,6 @@ void util_mesh_apply_displacement(gpu_texture_t *texpaint_pack, f32 strength, f3
mesh_data_build_vertices(g->_->vertex_buffer, o->data->vertex_arrays);
}
void util_mesh_equirect_unwrap(raw_mesh_t *mesh) {
i32 verts = math_floor(mesh->posa->length / 4.0);
mesh->texa = i16_array_create(verts * 2);
vec4_t n = (vec4_t){0.0, 0.0, 0.0, 1.0};
for (i32 i = 0; i < verts; ++i) {
n = (vec4_t){mesh->posa->buffer[i * 4] / 32767.0, mesh->posa->buffer[i * 4 + 1] / 32767.0, mesh->posa->buffer[i * 4 + 2] / 32767.0, 1.0};
n = vec4_norm(n);
// Sphere projection
// mesh.texa[i * 2 ] = math_atan2(n.x, n.y) / (math_pi() * 2) + 0.5;
// mesh.texa[i * 2 + 1] = n.z * 0.5 + 0.5;
// Equirect
mesh->texa->buffer[i * 2] = math_floor(((math_atan2(-n.z, n.x) + math_pi()) / (float)(math_pi() * 2)) * 32767);
mesh->texa->buffer[i * 2 + 1] = math_floor((math_acos(n.y) / (float)math_pi()) * 32767);
}
}
i32 util_mesh_decimate_sort(i32 *pa, i32 *pb) {
i32 a = *(pa);
i32 b = *(pb);