27 lines
629 B
Plaintext
27 lines
629 B
Plaintext
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uniform sampler2D tex;
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uniform int divider;
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uniform float width;
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uniform float height;
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vec4 getTexture(vec2 uv) {
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if (uv.x < 3. / width)
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uv.x = 3. / width;
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if (uv.y < 3. / height)
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uv.y = 3. / height;
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if (uv.x > 1. - 3. / width)
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uv.x = 1. - 3. / width;
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if (uv.y > 1. - 3. / height)
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uv.y = 1. - 3. / height;
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return texture2D(tex, uv);
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}
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void main() {
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vec2 uv = cogl_tex_coord0_in.st;
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vec2 scaled_multiplier = vec2(width, height) / divider;
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vec2 new_uv = 0.5 + floor((uv - 0.5) * scaled_multiplier) / scaled_multiplier;
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cogl_color_out = getTexture(new_uv);
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}
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