Merge pull request #8316 from Popov72/fix-pbrcustommat-declarations

PBRCustomMaterial: Fix fragment definitions position

src/Shaders/pbr.fragment.fx

@@ -49,6 +49,8 @@ precision highp float;
     #include<reflectionFunction>
 #endif
 
+#define CUSTOM_FRAGMENT_DEFINITIONS
+
 #include<pbrBlockAlbedoOpacity>
 #include<pbrBlockReflectivity>
 #include<pbrBlockAmbientOcclusion>
@@ -59,8 +61,6 @@ precision highp float;
 #include<pbrBlockClearcoat>
 #include<pbrBlockSubSurface>
 
-#define CUSTOM_FRAGMENT_DEFINITIONS
-
 // _____________________________ MAIN FUNCTION ____________________________
 void main(void) {