From 81d52f26d8f366eb5de69d9bf78228a1a3090c4e Mon Sep 17 00:00:00 2001 From: turanszkij Date: Thu, 4 Jan 2018 14:54:00 +0000 Subject: [PATCH] minor fix in light culling shader --- WickedEngine/lightCullingCS.hlsl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/WickedEngine/lightCullingCS.hlsl b/WickedEngine/lightCullingCS.hlsl index 6d227fb6c..217d4dd18 100644 --- a/WickedEngine/lightCullingCS.hlsl +++ b/WickedEngine/lightCullingCS.hlsl @@ -90,7 +90,7 @@ void o_BitonicSort( in uint localIdxFlattened ) // numArrayPowerOfTwo <<= 1; // Optimized nearest power of two algorithm: - uint numArrayPowerOfTwo = 2 << firstbithigh(numArray); + uint numArrayPowerOfTwo = 2 << firstbithigh(numArray - 1); // if numArray is 0, we don't even call this function, but watch out! for( uint nMergeSize = 2; nMergeSize <= numArrayPowerOfTwo; nMergeSize = nMergeSize * 2 ) { @@ -125,7 +125,7 @@ void t_BitonicSort( in uint localIdxFlattened ) // numArrayPowerOfTwo <<= 1; // Optimized nearest power of two algorithm: - uint numArrayPowerOfTwo = 2 << firstbithigh(numArray); + uint numArrayPowerOfTwo = 2 << firstbithigh(numArray - 1); // if numArray is 0, we don't even call this function, but watch out! for( uint nMergeSize = 2; nMergeSize <= numArrayPowerOfTwo; nMergeSize = nMergeSize * 2 ) {