MapleShrine
/
mkxp
1
0
Fork 0
Code Issues 32 Pull Requests 11 Projects Releases Wiki Activity

hue shader turns pure white pixels black on some GPUs. #84

Merged
Daverball merged 1 commits from hue-shader-fix into master 2014-12-31 15:12:08 +00:00
Conversation 18 Commits 1 Files Changed 1 +6 -2
1 changed files with 6 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
shader/hue.frag
View File

@ -29,7 +29,11 @@ void main ()
/* Make the user's adjustments */ /* Make the user's adjustments */
hue += hueAdjust; hue += hueAdjust;
// Convert back to YIQ /* Remember old I and color */
float IOriginal = I;
vec4 coOriginal = color;
/* Convert back to YIQ */
Q = chroma * sin (hue); Q = chroma * sin (hue);
I = chroma * cos (hue); I = chroma * cos (hue);
@ -40,5 +44,5 @@ void main ()
color.b = dot (yIQ, kYIQToB); color.b = dot (yIQ, kYIQToB);
/* Save the result */ /* Save the result */
gl_FragColor = color; gl_FragColor = (IOriginal == 0.0) ? coOriginal : color;
} }