Garmelon/geneross
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Implement faster comparison algorithm

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This commit is contained in:
Joscha 2017-04-29 12:30:30 +00:00
parent a04e58c7ca
commit 1d0a816605
3 changed files with 75 additions and 24 deletions
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36
compare.glsl
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@ -16,16 +16,16 @@ void main(void)
if (horizontal) {
float posy = gl_FragCoord.y/size.y;
for (float x=0.0; x<size.x; x+=1.0) {
vec4 color = texture2D(curr, vec2(x, posy));
for (float x=0.0; x<=1.0; x+=(1.0/size.x)) {
vec4 color = texture2D(curr, vec2(x, posy));
vec4 basecolor = texture2D(base, vec2(x, 1.0-posy));
color.rgb = abs(color.rgb - basecolor.rgb);
total = total + color.r + color.g + color.b;
}
} else {
float posx = gl_FragCoord.x/size.x;
for (float y=0.0; y<size.y; y+=1.0) {
vec4 color = texture2D(curr, vec2(posx, y));
for (float y=0.0; y<=1.0; y+=(1.0/size.y)) {
vec4 color = texture2D(curr, vec2(posx, y));
vec4 basecolor = texture2D(base, vec2(posx, 1.0-y));
color.rgb = abs(color.rgb - basecolor.rgb);
total = total + color.r + color.g + color.b;
@ -33,13 +33,29 @@ void main(void)
}
// encode to rgba channels in current pixel
vec4 color;
color.r = mod(total, 256.0/255.0); total = (total - color.r) / (256.0/255.0);
color.g = mod(total, 256.0/255.0); total = (total - color.g) / (256.0/255.0);
color.b = mod(total, 256.0/255.0); total = (total - color.b) / (256.0/255.0);
color.a = mod(total, 256.0/255.0);
vec4 col = vec4(0.0, 0.0, 0.0, 1.0);
// total = total/200.0;
col.r = mod(total, 256.0/255.0);
col.g = mod(total/256.0, 256.0/255.0);
col.b = mod(total/65536.0, 256.0/255.0);
// color.g = 0.0;
// color.b = 0.0;
// color.g = mod(total, 256.0/255.0);
// color.r = float(mod(total, 256))/255.0;
// total = total/256;
// color.r = 1.0/255.0;
// color.r = mod(total, 256.0/255.0);
// total = (total - color.r) / (256.0/255.0);
// color.g = mod(total, 256.0/255.0); total = (total - color.g) / (256.0/255.0);
// color.b = mod(total, 256.0/255.0);
// color.a = 1.0;
gl_FragColor = color;
// color.r = 0;
gl_FragColor = col;
// color.a = mod(total, 256.0/255.0);
// gl_FragColor = vec4(0.0, 1.0, 1.0, 1.0);
}
/*