23 lines
940 B
Plaintext
23 lines
940 B
Plaintext
|
uniform sampler2D SCREEN_TEXTURE;
|
||
|
|
uniform highp float boozePower;
|
||
|
|
const highp float TimeScale = 0.5;
|
||
|
|
const highp float DistortionScale = 0.01;
|
||
|
|
|
||
|
|
void fragment() {
|
||
|
|
|
||
|
|
highp float mod = mix(0.0, DistortionScale, boozePower);
|
||
|
|
vec2 coord = FRAGCOORD.xy * SCREEN_PIXEL_SIZE.xy;
|
||
|
|
float time = TIME * TimeScale;
|
||
|
|
|
||
|
|
vec2 offset = vec2((mod * 1.5) * sin(time * 1.5), (mod * 2.0) * cos(time * 1.5 - 0.2));
|
||
|
|
highp vec4 tex1 = zTextureSpec(SCREEN_TEXTURE, coord + offset);
|
||
|
|
|
||
|
|
if (boozePower > 0.5) {
|
||
|
|
offset = vec2((mod * 2 - DistortionScale) * sin(time * 0.333 - 0.2), (mod * 2 - DistortionScale) * cos(time * 0.333));
|
||
|
|
tex1 = mix(tex1, zTextureSpec(SCREEN_TEXTURE, coord + offset), mix(0.0, 0.3, boozePower*2-1));
|
||
|
|
}
|
||
|
|
|
||
|
|
offset = vec2((mod * 1.0) * sin(time * 1.0 + 0.1), (mod * 1.0) * cos(time * 1.0));
|
||
|
|
COLOR = mix(tex1, zTextureSpec(SCREEN_TEXTURE, coord + offset), mix(0.0, 0.5, boozePower));
|
||
|
|
}
|