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-rw-r--r--drivers/gles3/shaders/scene.glsl8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gles3/shaders/scene.glsl b/drivers/gles3/shaders/scene.glsl
index 5c7cfecf3e..7de9b02b8d 100644
--- a/drivers/gles3/shaders/scene.glsl
+++ b/drivers/gles3/shaders/scene.glsl
@@ -1013,7 +1013,7 @@ LIGHT_SHADER_CODE
#elif defined(SPECULAR_DISABLED)
//none..
-#else
+#elif defined(SPECULAR_SCHLICK_GGX)
// shlick+ggx as default
float alpha = roughness * roughness;
@@ -1056,6 +1056,12 @@ LIGHT_SHADER_CODE
#endif
#if defined(LIGHT_USE_CLEARCOAT)
+# if !defined(SPECULAR_SCHLICK_GGX)
+ vec3 H = normalize(V + L);
+ float dotLH5 = SchlickFresnel( dotLH );
+ float dotNH = max(dot(N,H), 0.0 );
+# endif
+
float Dr = GTR1(dotNH, mix(.1,.001,clearcoat_gloss));
float Fr = mix(.04, 1.0, dotLH5);
float Gr = G1V(dotNL, .25) * G1V(dotNV, .25);