1 files changed, 2 insertions, 4 deletions
diff --git a/res/effectlib/defaultMaterialFresnel.glsllib b/res/effectlib/defaultMaterialFresnel.glsllib
index e0eff4f..7a363e9 100644
--- a/res/effectlib/defaultMaterialFresnel.glsllib
+++ b/res/effectlib/defaultMaterialFresnel.glsllib
@@ -31,13 +31,11 @@
 #ifndef DEFAULT_MATERIAL_FRESNEL_GLSLLIB
 #define DEFAULT_MATERIAL_FRESNEL_GLSLLIB
 
-float defaultMaterialSimpleFresnel( in vec3 N, in vec3 viewDir, in float ior, float fresnelPower )
+float defaultMaterialSimpleFresnel(in vec3 N, in vec3 viewDir, in float ior, float fresnelPower)
 {
     float F = ((1.0-ior) * (1.0-ior)) / ((1.0+ior) * (1.0+ior));
-    float VdotN = dot(viewDir, N);
-    VdotN = clamp( VdotN, 0.0, 1.0 );
+    float VdotN = max(dot(viewDir, N), 0.0);
     float ratio = F + (1.0 - F) * pow(1.0 - VdotN, fresnelPower);
-
     return ratio;
 }