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Tweak OpenMP parameters for lightbaker

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On higher threadcount systems this allows for better utilization. On my
16 thread box CPU use goes from 10 - 11 threads to a steady 15 threads
on the Sponza scene.

Baking time goes from ~10:00 to ~07:30 for me. On lower threadcount
systems I expect some improvement also but likely a little less.
This commit is contained in:
Hein-Pieter van Braam
2017-12-17 03:07:07 +01:00
parent 83291eab3a
commit a402efeb72
1 changed files with 5 additions and 3 deletions
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8
scene/3d/voxel_light_baker.cpp
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@@ -1781,7 +1781,7 @@ Error VoxelLightBaker::make_lightmap(const Transform &p_xform, Ref<Mesh> &p_mesh
//print_line("bake line " + itos(i) + " / " + itos(height)); //print_line("bake line " + itos(i) + " / " + itos(height));
#ifdef _OPENMP #ifdef _OPENMP
#pragma omp parallel for #pragma omp parallel for schedule(dynamic, 1)
#endif #endif
for (int j = 0; j < width; j++) { for (int j = 0; j < width; j++) {
@@ -1878,12 +1878,14 @@ Error VoxelLightBaker::make_lightmap(const Transform &p_xform, Ref<Mesh> &p_mesh
LightMap *lightmap_ptr = lightmap.ptrw(); LightMap *lightmap_ptr = lightmap.ptrw();
const Cell *cells = bake_cells.ptr(); const Cell *cells = bake_cells.ptr();
const Light *light = bake_light.ptr(); const Light *light = bake_light.ptr();
#ifdef _OPENMP
#pragma omp parallel
#endif
for (int i = 0; i < height; i++) { for (int i = 0; i < height; i++) {
//print_line("bake line " + itos(i) + " / " + itos(height)); //print_line("bake line " + itos(i) + " / " + itos(height));
#ifdef _OPENMP #ifdef _OPENMP
#pragma omp parallel for #pragma omp parallel for schedule(dynamic, 1)
#endif #endif
for (int j = 0; j < width; j++) { for (int j = 0; j < width; j++) {