v4k-git-backup/engine/shaders/vs_0_2_fullscreen_quad_B_fl...

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out vec2 uv;
void main() {
float x = float(((uint(gl_VertexID) + 2u) / 3u)%2u);
float y = float(((uint(gl_VertexID) + 1u) / 3u)%2u);
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gl_Position = vec4(-1.0 + x*2.0, 0.0-(-1.0+y*2.0), 0.0, 1.0); // normal(0+),flipped(0-)
uv = vec2(x, y); // normal(y),flipped(1.0-y)
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}