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Geometry Nodes: Only calculate mesh to volume bounds when necessary

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In "size" voxel resolution mode, calculating the bounds of the mesh to
volume node's input mesh isn't necessary. For high poly this can take
a few milliseconds, so this commit skips the calculation unless we need
it for the "Amount" mode.

Differential Revision: https://developer.blender.org/D15324
This commit is contained in:
Hans Goudey
2022-06-29 12:28:08 -05:00
parent 4593fb52cf
commit 0ea282f746
4 changed files with 31 additions and 14 deletions
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10
source/blender/modifiers/intern/MOD_mesh_to_volume.cc
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@@ -133,7 +133,6 @@ static Volume *mesh_to_volume(ModifierData *md,
const float4x4 mesh_to_own_object_space_transform = float4x4(ctx->object->imat) *
float4x4(object_to_convert->obmat);
const BoundBox *bb = BKE_object_boundbox_get(mvmd->object);
geometry::MeshToVolumeResolution resolution;
resolution.mode = (MeshToVolumeModifierResolutionMode)mvmd->resolution_mode;
if (resolution.mode == MESH_TO_VOLUME_RESOLUTION_MODE_VOXEL_AMOUNT) {
@@ -149,9 +148,14 @@ static Volume *mesh_to_volume(ModifierData *md,
}
}
auto bounds_fn = [&](float3 &r_min, float3 &r_max) {
const BoundBox *bb = BKE_object_boundbox_get(mvmd->object);
r_min = bb->vec[0];
r_max = bb->vec[6];
};
const float voxel_size = geometry::volume_compute_voxel_size(ctx->depsgraph,
bb->vec[0],
bb->vec[6],
bounds_fn,
resolution,
mvmd->exterior_band_width,
mesh_to_own_object_space_transform);