quakeforge/libs/video/renderer/vulkan/shader/compose.frag
Bill Currie befb3ca31b [vulkan] Clamp composed values to >= 0
This takes care of the nans that got into the output buffer resulting is
weird holes in any overlays.
2023-07-22 00:43:05 +09:00

28 lines
781 B
GLSL

#version 450
#extension GL_GOOGLE_include_directive : enable
#extension GL_EXT_multiview : enable
#define OIT_SET 1
#include "oit_blend.finc"
layout (input_attachment_index = 0, set = 0, binding = 0) uniform subpassInput color;
layout (input_attachment_index = 1, set = 0, binding = 1) uniform subpassInput light;
layout (input_attachment_index = 2, set = 0, binding = 2) uniform subpassInput emission;
layout (location = 0) out vec4 frag_color;
void
main (void)
{
vec3 c;
vec3 l;
vec3 e;
vec3 o;
c = subpassLoad (color).rgb;
l = subpassLoad (light).rgb;
e = subpassLoad (emission).rgb;
o = max(BlendFrags (vec4 (c * l + e, 1)).xyz, vec3(0));
o = pow (o, vec3(0.83));//FIXME make gamma correction configurable
frag_color = vec4 (o, 1);
}