message: Fix Schlick Fresnel when f90 < 1
diff: @@ -151,8 +151,7 @@ float V_Neubelt(float NoV, float NoL) {
  vec3 F_Schlick(const vec3 f0, float f90, float VoH) {
  // Schlick 1994, "An Inexpensive BRDF Model for Physically-Based Rendering"
  - float f = pow5(1.0 - VoH);
  - return f + f0 * (f90 - f);
  + return f0 + (f90 - f0) * pow5(1.0 - VoH);
  }
  float F_Schlick(float f0, float f90, float VoH) {
  