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Improved shaders_postprocessing example

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Ray 2017-05-16 00:14:14 +02:00
commit 65e6a6db53
1 changed files with 29214 additions and 26979 deletions
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11
examples/shaders/resources/shaders/glsl100/predator.fs
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@ -13,7 +13,7 @@ uniform vec4 colDiffuse;
// NOTE: Add here your custom variables
void main()
{
{
vec3 color = texture2D(texture0, fragTexCoord).rgb;
vec3 colors[3];
colors[0] = vec3(0.0, 0.0, 1.0);
@ -21,10 +21,11 @@ void main()
colors[2] = vec3(1.0, 0.0, 0.0);
float lum = (color.r + color.g + color.b)/3.0;
vec3 tc = vec3(0.0, 0.0, 0.0);
int ix = (lum < 0.5)? 0:1;
vec3 tc = mix(colors[ix], colors[ix+1], (lum-float(ix)*0.5)/0.5);
if (lum < 0.5) tc = mix(colors[0], colors[1], lum/0.5);
else tc = mix(colors[1], colors[2], (lum - 0.5)/0.5);
gl_FragColor = vec4(tc, 1.0);
}