gtk2/gsk/resources/glsl/cross_fade.fs.glsl

14 lines
353 B
GLSL

uniform float u_progress;
uniform sampler2D u_source2;
void main() {
vec4 source1 = Texture(u_source, vUv); // start child
vec4 source2 = Texture(u_source2, vUv); // end child
float p_start = (1.0 - u_progress) * u_alpha;
float p_end = u_progress * u_alpha;
vec4 color = (p_start * source1) + (p_end * source2);
setOutputColor(color);
}