Eevee: SSR: Output ssr datas to buffers.

Output in 2 buffers Normals, Specular Color and roughness.
This way we can raytrace in a defered fashion and blend the exact contribution of the specular lobe on top of the opaque pass.

1 files changed, 10 insertions, 8 deletions

diff --git a/source/blender/draw/engines/eevee/shaders/default_frag.glsl b/source/blender/draw/engines/eevee/shaders/default_frag.glsl
index b50eb481f94..db8ed2d04fe 100644
--- a/source/blender/draw/engines/eevee/shaders/default_frag.glsl
+++ b/source/blender/draw/engines/eevee/shaders/default_frag.glsl
@@ -4,17 +4,19 @@ uniform float metallic;
 uniform float specular;
 uniform float roughness;
 
-out vec4 FragColor;
-
-void main()
+Closure nodetree_exec(void)
 {
 	vec3 dielectric = vec3(0.034) * specular * 2.0;
 	vec3 diffuse = mix(basecol, vec3(0.0), metallic);
 	vec3 f0 = mix(dielectric, basecol, metallic);
-	vec3 radiance = eevee_surface_lit((gl_FrontFacing) ? worldNormal : -worldNormal, diffuse, f0, roughness, 1.0);
-#if defined(USE_ALPHA_BLEND)
-	FragColor = vec4(radiance, 1.0);
-#else
-	FragColor = vec4(radiance, length(viewPosition));
+	vec3 ssr_spec;
+	vec3 radiance = eevee_surface_lit((gl_FrontFacing) ? worldNormal : -worldNormal, diffuse, f0, roughness, 1.0, 0, ssr_spec);
+
+	Closure result = Closure(radiance, 1.0, vec4(ssr_spec, roughness), viewNormal.xy, 0);
+
+#if !defined(USE_ALPHA_BLEND)
+	result.opacity = length(viewPosition);
 #endif
+
+	return result;
 }