15 lines
281 B
GLSL
15 lines
281 B
GLSL
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uniform float u_Time;
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uniform sampler2D u_Tex0;
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varying vec2 v_TexCoord;
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vec4 grayscale(vec4 color)
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{
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float gray = dot(color.rgb, vec3(0.299, 0.587, 0.114));
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return vec4(gray, gray, gray, 1);
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}
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void main()
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{
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gl_FragColor = grayscale(texture2D(u_Tex0, v_TexCoord));
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}
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