quakeforge/libs/video/renderer/vulkan/shader/compose.frag

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#version 450
layout (input_attachment_index = 0, set = 0, binding = 0) uniform subpassInput opaque;
layout (input_attachment_index = 1, set = 0, binding = 1) uniform subpassInput translucent;
layout (location = 0) out vec4 frag_color;
void
main (void)
{
vec3 o;
vec4 t;
vec3 c;
o = subpassLoad (opaque).rgb;
t = subpassLoad (translucent);
c = mix (o, t.rgb, t.a);
frag_color = vec4 (c, 1);
}