griefith/test
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

Mesh: Extract loose edges and vertices in two threads

Browse Source 
The process of calculating the caches for loose edges and loose vertices
and extracting their indices are independent and both single threaded.
If the CPU isn't doing anything else, using two threads can half the
total time for both. For example, this saves 40-50ms opening a file
with a 16 million face mesh.
This commit is contained in:
Hans Goudey
2023-07-29 13:29:14 -04:00
parent 38fc111fc9
commit c4ac4ecc4c
1 changed files with 21 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
source/blender/draw/intern/draw_cache_extract_mesh_render_data.cc
View File

@@ -46,17 +46,27 @@ static void extract_set_bits(const blender::BitSpan bits, blender::MutableSpan<i
static void mesh_render_data_loose_geom_mesh(const MeshRenderData *mr, MeshBufferCache *cache)
{
using namespace blender;
const bke::LooseEdgeCache &loose_edges = mr->me->loose_edges();
if (loose_edges.count > 0) {
cache->loose_geom.edges.reinitialize(loose_edges.count);
extract_set_bits(loose_edges.is_loose_bits, cache->loose_geom.edges);
}
const bke::LooseVertCache &loose_verts = mr->me->loose_verts();
if (loose_verts.count > 0) {
cache->loose_geom.verts.reinitialize(loose_verts.count);
extract_set_bits(loose_verts.is_loose_bits, cache->loose_geom.verts);
}
const Mesh &mesh = *mr->me;
const bool no_loose_vert_hint = mesh.runtime->loose_verts_cache.is_cached() &&
mesh.runtime->loose_verts_cache.data().count == 0;
const bool no_loose_edge_hint = mesh.runtime->loose_edges_cache.is_cached() &&
mesh.runtime->loose_edges_cache.data().count == 0;
threading::parallel_invoke(
mesh.totedge > 4096 && !no_loose_vert_hint && !no_loose_edge_hint,
[&]() {
const bke::LooseEdgeCache &loose_edges = mesh.loose_edges();
if (loose_edges.count > 0) {
cache->loose_geom.edges.reinitialize(loose_edges.count);
extract_set_bits(loose_edges.is_loose_bits, cache->loose_geom.edges);
}
},
[&]() {
const bke::LooseVertCache &loose_verts = mesh.loose_verts();
if (loose_verts.count > 0) {
cache->loose_geom.verts.reinitialize(loose_verts.count);
extract_set_bits(loose_verts.is_loose_bits, cache->loose_geom.verts);
}
});
}
static void mesh_render_data_loose_verts_bm(const MeshRenderData *mr,