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Fix: HIP-RT creates copy of vector<Object *> during build

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Is harmless from functional perspective, but uses more resources and
potentially slower than it should be. Although, probably something
hard to measure in practice, but still better not follow this anti-
pattern.

Pull Request: https://projects.blender.org/blender/blender/pulls/135529
This commit is contained in:
Sergey Sharybin
2025-03-06 11:57:51 +01:00
committed by Sergey Sharybin
parent e726357962
commit f89728a5e4
2 changed files with 5 additions and 7 deletions
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10
intern/cycles/device/hiprt/device_impl.cpp
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@@ -805,7 +805,7 @@ void HIPRTDevice::build_blas(BVHHIPRT *bvh, Geometry *geom, hiprtBuildOptions op
}
hiprtScene HIPRTDevice::build_tlas(BVHHIPRT *bvh,
vector<Object *> objects,
const vector<Object *> &objects,
hiprtBuildOptions options,
bool refit)
{
@@ -1097,18 +1097,16 @@ void HIPRTDevice::build_bvh(BVH *bvh, Progress &progress, bool refit)
HIPContextScope scope(this);
if (!bvh_rt->is_tlas()) {
vector<Geometry *> geometry = bvh_rt->geometry;
const vector<Geometry *> &geometry = bvh_rt->geometry;
assert(geometry.size() == 1);
Geometry *geom = geometry[0];
build_blas(bvh_rt, geom, options);
build_blas(bvh_rt, geometry[0], options);
}
else {
const vector<Object *> objects = bvh_rt->objects;
if (scene) {
hiprtDestroyScene(hiprt_context, scene);
}
scene = build_tlas(bvh_rt, objects, options, refit);
scene = build_tlas(bvh_rt, bvh_rt->objects, options, refit);
}
}
CCL_NAMESPACE_END