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DRW: PointCloud: Multithread index buffer creation

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This commit is contained in:
Clément Foucault
2024-05-11 14:00:21 +02:00
parent 41b0e11839
commit 73a496121b
1 changed files with 9 additions and 7 deletions
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16
source/blender/draw/intern/draw_cache_impl_pointcloud.cc
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@@ -235,14 +235,16 @@ static void pointcloud_extract_indices(const PointCloud &pointcloud, PointCloudB
GPU_indexbuf_init(&builder, GPU_PRIM_TRIS, index_len, vertid_max);
/* TODO(fclem): Could be build on GPU or not be built at all. */
for (int p = 0; p < pointcloud.totpoint; p++) {
for (int i = 0; i < ARRAY_SIZE(half_octahedron_tris); i++) {
GPU_indexbuf_add_tri_verts(&builder,
half_octahedron_tris[i][0] | (p << 3),
half_octahedron_tris[i][1] | (p << 3),
half_octahedron_tris[i][2] | (p << 3));
threading::parallel_for(IndexRange(pointcloud.totpoint), 1024, [&](const IndexRange range) {
for (int p : range) {
for (int i = 0; i < ARRAY_SIZE(half_octahedron_tris); i++) {
GPU_indexbuf_add_tri_verts(&builder,
half_octahedron_tris[i][0] | (p << 3),
half_octahedron_tris[i][1] | (p << 3),
half_octahedron_tris[i][2] | (p << 3));
}
}
}
});
GPU_indexbuf_build_in_place(&builder, cache.eval_cache.geom_indices);
}