bsnes/shaders/Curvature.shader/curvature.fs

22 lines
379 B
GLSL

#version 150
#define distortion 0.2
uniform sampler2D source[];
uniform vec4 sourceSize[];
in Vertex {
vec2 texCoord;
};
out vec4 fragColor;
vec2 radialDistortion(vec2 coord) {
vec2 cc = coord - vec2(0.5);
float dist = dot(cc, cc) * distortion;
return coord + cc * (1.0 - dist) * dist;
}
void main() {
fragColor = texture(source[0], radialDistortion(texCoord));
}