17 lines
298 B
GLSL
17 lines
298 B
GLSL
#version 300 es
|
|
precision highp float;
|
|
|
|
in vec2 v_texcoord;
|
|
uniform sampler2D tex;
|
|
out vec4 fragColor;
|
|
|
|
void main() {
|
|
vec4 c = texture(tex, v_texcoord);
|
|
|
|
vec2 uv = v_texcoord - 0.5;
|
|
float vignette = 1.0 - dot(uv, uv) * 2.2;
|
|
c.rgb *= clamp(vignette, 0.0, 1.0);
|
|
|
|
fragColor = c;
|
|
}
|