using GpuLut to colour correct on the fly

1 files changed, 4 insertions, 4 deletions

diff --git a/gui/src/chainImage.cpp b/gui/src/chainImage.cpp
index e95ed28..f7bca10 100644
--- a/gui/src/chainImage.cpp
+++ b/gui/src/chainImage.cpp
@@ -419,9 +419,9 @@ ofImage makeLut(float gamma,float pedestal,float clamp){
 		for (uint32_t g=0;g<64;g++){
 			for (uint32_t r=0;r<64;r++){
 				uint8_t *pixel=&pixels[(r+(g<<9)+(bluecolumn<<6)+(bluerow<<15))*3]; //+(b<<12))*3];
-				pixel[0]=r*4; 
-				pixel[1]=g*4; 
-				pixel[2]=b*4;
+				pixel[0]=(uint8_t)((pedestal+(pow(r/64.0f,gamma)*(clamp-pedestal)))*255); 
+				pixel[1]=(uint8_t)((pedestal+(pow(g/64.0f,gamma)*(clamp-pedestal)))*255); 
+				pixel[2]=(uint8_t)((pedestal+(pow(b/64.0f,gamma)*(clamp-pedestal)))*255); 
 			}
 		}
 	}
@@ -468,7 +468,7 @@ void chainImage::drawChain(float fadeIn,bool additive,float intensity,float zoom
 			glScalef(zoomFactor,zoomFactor,zoomFactor);
 
 			//ofSetColor(colour);
-			float gamma=1.0f;
+			float gamma=1.5f;
 			float pedestal=0.0f;
 			float clamp=1.0f;
 			lut.load(makeLut(gamma,pedestal,clamp));