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make pattern subtract blend mode actually subtract

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Struma 2022-01-18 03:28:05 -05:00
parent 9fcbdba420
commit b2dd4db15d
1 changed files with 2 additions and 2 deletions
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4
shader/sprite.frag
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@ -51,11 +51,11 @@ vec3 blendAdd(vec3 base, vec3 blend, float opacity) {
// Subtract
float blendSubtract(float base, float blend) {
return max(base+blend-1.0,0.0);
return max(base-blend,0.0);
}
vec3 blendSubtract(vec3 base, vec3 blend) {
return max(base+blend-vec3(1.0),vec3(0.0));
return max(base-blend,vec3(0.0));
}
vec3 blendSubtract(vec3 base, vec3 blend, float opacity) {