stk-code_catmod/data/shaders/bloom.frag
2014-02-02 02:13:04 +01:00

18 lines
300 B
GLSL

#version 130
uniform sampler2D tex;
uniform float low;
in vec2 uv;
out vec4 FragColor;
void main()
{
vec3 weights = vec3(0.2126, 0.7152, 0.0722); // ITU-R BT. 709
vec3 col = texture(tex, uv).xyz;
float luma = dot(weights, col);
col *= smoothstep(1., 2., luma);
FragColor = vec4(col, 1.0);
}