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#version 440
layout(location = 0) in vec2 uv;
layout(location = 0) out vec4 fragColor;
layout(std140, binding = 1) uniform buf {
float opacity;
} fubuf;
layout(binding = 2) uniform sampler2D tex;
void main()
{
vec4 c = texture(tex, uv);
c.a *= fubuf.opacity;
c.rgb *= c.a;
fragColor = c;
}
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