remove warnings. (#8877)

# Conflicts:
#	src/renderers/shaders/ShaderChunk/cube_uv_reflection_fragment.glsl

src/renderers/shaders/ShaderChunk/cube_uv_reflection_fragment.glsl

 #ifdef ENVMAP_TYPE_CUBE_UV
 
-const float cubeUV_textureSize = 1024.0;
+#define cubeUV_textureSize (1024.0)
 
 int getFaceFromDirection(vec3 direction) {
 	vec3 absDirection = abs(direction);
@@ -19,8 +19,8 @@ int getFaceFromDirection(vec3 direction) {
 	}
 	return face;
 }
-float cubeUV_maxLods1 = log2(cubeUV_textureSize*0.25) - 1.0;
-float cubeUV_rangeClamp = exp2((6.0 - 1.0) * 2.0);
+#define cubeUV_maxLods1  (log2(cubeUV_textureSize*0.25) - 1.0)
+#define cubeUV_rangeClamp (exp2((6.0 - 1.0) * 2.0))
 
 vec2 MipLevelInfo( vec3 vec, float roughnessLevel, float roughness ) {
 	float scale = exp2(cubeUV_maxLods1 - roughnessLevel);
@@ -35,8 +35,8 @@ vec2 MipLevelInfo( vec3 vec, float roughnessLevel, float roughness ) {
 	return vec2(floor(mipLevel), fract(mipLevel));
 }
 
-float cubeUV_maxLods2 = log2(cubeUV_textureSize*0.25) - 2.0;
-const float cubeUV_rcpTextureSize = 1.0 / cubeUV_textureSize;
+#define cubeUV_maxLods2 (log2(cubeUV_textureSize*0.25) - 2.0)
+#define cubeUV_rcpTextureSize (1.0 / cubeUV_textureSize)
 
 vec2 getCubeUV(vec3 direction, float roughnessLevel, float mipLevel) {
 	mipLevel = roughnessLevel > cubeUV_maxLods2 - 3.0 ? 0.0 : mipLevel;
@@ -97,7 +97,7 @@ vec2 getCubeUV(vec3 direction, float roughnessLevel, float mipLevel) {
 	return base + s * ( scale - 2.0 * texelOffset );
 }
 
-float cubeUV_maxLods3 = log2(cubeUV_textureSize*0.25) - 3.0;
+#define cubeUV_maxLods3 (log2(cubeUV_textureSize*0.25) - 3.0)
 
 vec4 textureCubeUV(vec3 reflectedDirection, float roughness ) {
 	float roughnessVal = roughness* cubeUV_maxLods3;