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correct indexing bug with FSAA

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This commit is contained in:
Axel Kohlmeyer
2023-10-08 19:12:37 -04:00
parent 2d597f61b8
commit 1390a92a5b
1 changed files with 5 additions and 5 deletions
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10
src/image.cpp
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@ -395,12 +395,12 @@ void Image::merge()
if (fsaa) {
for (int h=0; h < height; h += 2) {
for (int w=0; w < width; w +=2) {
int idx1 = 3*height*h + 3*w;
int idx2 = 3*height*h + 3*(w+1);
int idx3 = 3*height*(h+1) + 3*w;
int idx4 = 3*height*(h+1) + 3*(w+1);
int idx1 = 3*width*h + 3*w;
int idx2 = 3*width*h + 3*(w+1);
int idx3 = 3*width*(h+1) + 3*w;
int idx4 = 3*width*(h+1) + 3*(w+1);
int out = 3*(height/2)*(h/2) + 3*(w/2);
int out = 3*(width/2)*(h/2) + 3*(w/2);
for (int i=0; i < 3; ++i) {
writeBuffer[out+i] = (unsigned char) (0.25*((int)writeBuffer[idx1+i]
+(int)writeBuffer[idx2+i]