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

#version 450

layout (input_attachment_index = 0, set = 0, binding = 0) uniform subpassInput depth;
layout (input_attachment_index = 1, set = 0, binding = 1) uniform subpassInput color;
layout (input_attachment_index = 2, set = 0, binding = 2) uniform subpassInput normal;
layout (input_attachment_index = 3, set = 0, binding = 3) uniform subpassInput position;

struct LightData {
	vec3        color;
	float       dist;
	vec3        position;
	int         type;
	vec3        direction;
	float       cone;
};

layout (constant_id = 0) const int MaxLights = 8;
/*layout (set = 1, binding = 0) uniform Lights {
	int         lightCount;
	LightData   lights[MaxLights];
};*/

layout (location = 0) out vec4 frag_color;

void
main (void)
{
	float       d = subpassLoad (depth).r;
	vec3        c = subpassLoad (color).rgb;
	vec3        n = subpassLoad (normal).rgb;
	vec3        p = subpassLoad (position).rgb;

	c = vec3 (d, d, d);
	c = (n + 1)/2;
	c = (p / 1024 + 1) / 2;
	frag_color = vec4 (c, 1);
}