diff options
Diffstat (limited to 'shaders/gl330/posterization.fs')
| -rw-r--r-- | shaders/gl330/posterization.fs | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/shaders/gl330/posterization.fs b/shaders/gl330/posterization.fs new file mode 100644 index 00000000..652cf609 --- /dev/null +++ b/shaders/gl330/posterization.fs @@ -0,0 +1,26 @@ +#version 330 + +in vec2 fragTexCoord; + +out vec4 fragColor; + +uniform sampler2D texture0; +uniform vec4 tintColor; + +// NOTE: Add here your custom variables + +float gamma = 0.6f; +float numColors = 8.0f; + +void main() +{ + vec3 color = texture2D(texture0, fragTexCoord.xy).rgb; + + color = pow(color, vec3(gamma, gamma, gamma)); + color = color*numColors; + color = floor(color); + color = color/numColors; + color = pow(color, vec3(1.0/gamma)); + + fragColor = vec4(color, 1.0); +}
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