bsnes/shaders/CRT-Glow.shader/threshold.fs

19 lines
364 B
GLSL

#version 150
#define GLOW_WHITEPOINT 1.0
#define GLOW_ROLLOFF 3.0
uniform sampler2D source[];
in Vertex {
vec2 vTexCoord;
};
out vec4 FragColor;
void main() {
vec3 color = 1.15 * texture(source[0], vTexCoord).rgb;
vec3 factor = clamp(color / GLOW_WHITEPOINT, 0.0, 1.0);
FragColor = vec4(pow(factor, vec3(GLOW_ROLLOFF)), 1.0);
}