11 lines
234 B
GLSL
11 lines
234 B
GLSL
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uniform vec2 u_skRTFlip;
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out vec4 sk_FragColor;
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void main() {
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bool sk_Clockwise = gl_FrontFacing;
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if (u_skRTFlip.y < 0.0) {
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sk_Clockwise = !sk_Clockwise;
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}
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sk_FragColor = vec4(float(sk_Clockwise ? 1 : -1));
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}
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