Fix typo in hair shader view vector

source/blender/draw/engines/clay/shaders/particle_strand_frag.glsl

@@ -118,7 +118,7 @@ void hue_sat(float hue, float sat, float value, inout vec3 col)
 void main()
 {
 	vec3 viewvec = (ProjectionMatrix[3][3] == 0.0) ? normalize(viewPosition) : vec3(0.0, 0.0, -1.0);
-	vec3 ortho = normalize(cross(viewPosition, tangent));
+	vec3 ortho = normalize(cross(viewvec, tangent));
 	vec3 norm = normalize(cross(ortho, tangent));
 
 	vec3 col = vec3(0);