example/screenShader.frag


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//
// Example blue light filter shader.
//

#version 300 es

precision mediump float;
in vec2 v_texcoord;
layout(location = 0) out vec4 fragColor;
uniform sampler2D tex;

void main() {

    vec4 pixColor = texture(tex, v_texcoord);

    pixColor[2] *= 0.8;

    fragColor = pixColor;
}