Update cuda_pathtracer.cu

straaljager · Jan 26, 2016 · a5f562c · a5f562c
1 parent 60f75fb
commit a5f562c
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/cuda_pathtracer.cu b/cuda_pathtracer.cu
@@ -218,7 +218,10 @@ __device__ bool BVH_IntersectTriangles(
 	// start from infinity
 	bestTriDist = FLT_MAX;
 
+	// create a stack for each ray
+	// the stack is just a fixed size array of indices to BVH nodes
 	int stack[BVH_STACK_SIZE];
+
 	int stackIdx = 0;
 	stack[stackIdx++] = 0; 
 	Vector3Df hitpoint;