Commit: 4ac5859f05892cf1456385fe7de3f13debdca858
Author: Sergey Sharybin
Date: Sun Aug 30 16:47:45 2015 +0200
Branches: master
https://developer.blender.org/rB4ac5859f05892cf1456385fe7de3f13debdca858
Cycles: Avoid copying objects in some places of BVH build
Gives barely measurable speedup of Spatial Split BVH build.
===================================================================
M intern/cycles/bvh/bvh_binning.cpp
M intern/cycles/bvh/bvh_split.cpp
===================================================================
diff --git a/intern/cycles/bvh/bvh_binning.cpp
b/intern/cycles/bvh/bvh_binning.cpp
index db96490..8745e39 100644
--- a/intern/cycles/bvh/bvh_binning.cpp
+++ b/intern/cycles/bvh/bvh_binning.cpp
@@ -76,8 +76,8 @@ BVHObjectBinning::BVHObjectBinning(const BVHRange& job,
BVHReference *prims)
prefetch_L2(&prims[start() + i + 8]);
/* map even and odd primitive to bin */
- BVHReference prim0 = prims[start() + i + 0];
- BVHReference prim1 = prims[start() + i + 1];
+ const BVHReference& prim0 = prims[start() + i + 0];
+ const BVHReference& prim1 = prims[start() + i + 1];
int4 bin0 = get_bin(prim0.bounds());
int4 bin1 = get_bin(prim1.bounds());
@@ -96,7 +96,7 @@ BVHObjectBinning::BVHObjectBinning(const BVHRange& job,
BVHReference *prims)
/* for uneven number of primitives */
if(i < ssize_t(size())) {
/* map primitive to bin */
- BVHReference prim0 = prims[start() + i];
+ const BVHReference& prim0 = prims[start() + i];
int4 bin0 = get_bin(prim0.bounds());
/* increase bounds of bins */
diff --git a/intern/cycles/bvh/bvh_split.cpp b/intern/cycles/bvh/bvh_split.cpp
index a697c44..534c1aa 100644
--- a/intern/cycles/bvh/bvh_split.cpp
+++ b/intern/cycles/bvh/bvh_split.cpp
@@ -300,8 +300,8 @@ void BVHSpatialSplit::split_curve_primitive(const Mesh
*mesh,
/* curve split: NOTE - Currently ignores curve width and needs to be
fixed.*/
const int k0 = mesh->curves[prim_index].first_key + segment_index;
const int k1 = k0 + 1;
- const float4 key0 = mesh->curve_keys[k0];
- const float4 key1 = mesh->curve_keys[k1];
+ const float4& key0 = mesh->curve_keys[k0];
+ const float4& key1 = mesh->curve_keys[k1];
float3 v0 = float4_to_float3(key0);
float3 v1 = float4_to_float3(key1);
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