[Bf-blender-cvs] [f07140940c4] blender2.8: Eevee: Principled: Fix Subsurface input behaviour
Clément Foucault
noreply at git.blender.org
Sat Jul 21 18:17:30 CEST 2018
Commit: f07140940c4ef5c062fbf1c2f7d3743b3d1fd29e
Author: Clément Foucault
Date: Sat Jul 21 18:15:31 2018 +0200
Branches: blender2.8
https://developer.blender.org/rBf07140940c4ef5c062fbf1c2f7d3743b3d1fd29e
Eevee: Principled: Fix Subsurface input behaviour
Match Cycles behaviour of scalling the SSS radius and don't interpolate
between diffuse and SSS result.
===================================================================
M source/blender/gpu/shaders/gpu_shader_material.glsl
===================================================================
diff --git a/source/blender/gpu/shaders/gpu_shader_material.glsl b/source/blender/gpu/shaders/gpu_shader_material.glsl
index 961837f6b16..464851bae21 100644
--- a/source/blender/gpu/shaders/gpu_shader_material.glsl
+++ b/source/blender/gpu/shaders/gpu_shader_material.glsl
@@ -1145,15 +1145,18 @@ void node_bsdf_principled_clearcoat(vec4 base_color, float subsurface, vec3 subs
clearcoat *= 0.25;
clearcoat *= 1.0 - transmission;
+ vec3 mixed_ss_base_color = mix(diffuse, subsurface_color.rgb, subsurface);
+
#ifdef USE_SSS
- diffuse = mix(diffuse, vec3(0.0), subsurface);
+ diffuse = vec3(0.0);
#else
- diffuse = mix(diffuse, subsurface_color.rgb, subsurface);
+ diffuse = mixed_ss_base_color;
#endif
+
f0 = mix(f0, vec3(1.0), transmission);
- float sss_scalef = dot(sss_scale, vec3(1.0 / 3.0));
- eevee_closure_principled(N, diffuse, f0, int(ssr_id), roughness,
+ float sss_scalef = dot(sss_scale, vec3(1.0 / 3.0)) * subsurface;
+ eevee_closure_principled(N, mixed_ss_base_color, f0, int(ssr_id), roughness,
CN, clearcoat, clearcoat_roughness, 1.0, sss_scalef, ior,
out_diff, out_trans, out_spec, out_refr, ssr_spec);
@@ -1177,11 +1180,11 @@ void node_bsdf_principled_clearcoat(vec4 base_color, float subsurface, vec3 subs
#ifdef USE_SSS
result.sss_data.a = sss_scalef;
result.sss_data.rgb = out_diff + out_trans;
-#ifdef USE_SSS_ALBEDO
- result.sss_albedo.rgb = mix(vec3(0.0), subsurface_color.rgb, subsurface);
-#else
- result.sss_data.rgb *= mix(vec3(0.0), subsurface_color.rgb, subsurface);
-#endif
+# ifdef USE_SSS_ALBEDO
+ result.sss_albedo.rgb = mixed_ss_base_color;
+# else
+ result.sss_data.rgb *= mixed_ss_base_color;
+# endif
result.sss_data.rgb *= (1.0 - transmission);
#endif
}
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