quakeforge/libs/video/renderer/vulkan/shader/bsp_gbuf.frag
Bill Currie a08261c620 [vulkan] Use a buffer for entity transform and color data
This allows the use of an entity id to index into the entity data and
fetch the transform and colormod data in the vertex shader, thus making
instanced rendering possible. Non-world brush entities are still not
rendered, but the world entity is using both the entity data buffer and
entid buffer.
2022-05-25 00:17:57 +09:00

46 lines
1.1 KiB
GLSL

#version 450
layout (set = 2, binding = 0) uniform sampler2DArray Texture;
layout (push_constant) uniform PushConstants {
vec4 fog;
float time;
float alpha;
};
layout (location = 0) in vec4 tl_st;
layout (location = 1) in vec3 direction;
layout (location = 2) in vec3 normal;
layout (location = 3) in vec4 position;
layout (location = 0) out vec4 frag_color;
layout (location = 1) out vec4 frag_emission;
layout (location = 2) out vec4 frag_normal;
layout (location = 3) out vec4 frag_position;
vec4
fogBlend (vec4 color)
{
float az = fog.a * gl_FragCoord.z / gl_FragCoord.w;
vec3 fog_color = fog.rgb;
float fog_factor = exp (-az * az);
return vec4 (mix (fog_color.rgb, color.rgb, fog_factor), color.a);
}
void
main (void)
{
vec4 c = vec4 (0);
vec4 e;
vec3 t_st = vec3 (tl_st.xy, 0);
vec3 e_st = vec3 (tl_st.xy, 1);
vec2 l_st = vec2 (tl_st.zw);
c = texture (Texture, t_st);
e = texture (Texture, e_st);
frag_color = c;//fogBlend (c);
frag_emission = e;
frag_normal = vec4 (normal, 0);
frag_position = position;
}