Undo splitting of buffers in three. Makes buffer access much faster

Not kidding here. For the default parameters this increased the maximum pixel brightness in the image by a factor of 2.25.
This has the drawback that the maximum possible image size got reduced, but hey, there's a command line switch to ignore all size limits ;-)

1 files changed, 5 insertions, 13 deletions

diff --git a/BuddhaTest/Shaders/BuddhaCompute.glsl b/BuddhaTest/Shaders/BuddhaCompute.glsl
index 7cd4efe..caf10ee 100644
--- a/BuddhaTest/Shaders/BuddhaCompute.glsl
+++ b/BuddhaTest/Shaders/BuddhaCompute.glsl
@@ -4,15 +4,7 @@
 
 layout(std430, binding=2) restrict buffer renderedDataRed
 {
-    restrict uint counts_SSBORed[];
-};
-layout(std430, binding=3) restrict buffer renderedDataGreen
-{
-    restrict uint counts_SSBOGreen[];
-};
-layout(std430, binding=4) restrict buffer renderedDataBlue
-{
-    restrict uint counts_SSBOBlue[];
+    restrict uint counts_SSBO[];
 };
 
 struct individualData
@@ -38,10 +30,10 @@ uniform uint totalIterations;
 
 void addToColorOfCell(uvec2 cell, uvec3 toAdd)
 {
-    uint firstIndex = (cell.x + cell.y * width);
-    atomicAdd(counts_SSBORed[firstIndex],toAdd.x);
-    atomicAdd(counts_SSBOGreen[firstIndex],toAdd.y);
-    atomicAdd(counts_SSBOBlue[firstIndex],toAdd.z);
+    uint firstIndex = 3*(cell.x + cell.y * width);
+    atomicAdd(counts_SSBO[firstIndex],toAdd.x);
+    atomicAdd(counts_SSBO[firstIndex+1],toAdd.y);
+    atomicAdd(counts_SSBO[firstIndex+2],toAdd.z);
 }
 
 uvec2 getCell(vec2 complex)