Help with Pixel Shader effect for brightness and contrast
- by Hans
What is a simple pixel shader script effect to apply brightness and contrast?
I found this one, but it doesn't seem to be correct:
sampler2D input : register(s0);
float brightness : register(c0);
float contrast : register(c1);
float4 main(float2 uv : TEXCOORD) : COLOR
{
float4 color = tex2D(input, uv);
float4 result = color;
result = color + brightness;
result = result * (1.0+contrast)/1.0;
return result;
}
thanks!
