23 lines
350 B
GLSL
23 lines
350 B
GLSL
#version 450
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#ifdef GL_ES
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precision mediump float;
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#endif
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uniform sampler2D tex;
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in vec2 texCoord;
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void main() {
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vec4 col = texture(tex, texCoord);
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float brightness = dot(col.rgb, vec3(0.2126, 0.7152, 0.0722));
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if (brightness > 0.99) {
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gl_FragColor = vec4(col.rgb, 1.0);
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return;
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}
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gl_FragColor = vec4(0.0);
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// gl_FragColor = col;
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}
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