X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Feffects%2Fambientocclusion.cpp;h=c35e5771de1d76f3a7ea95e8ab9c2125f7156754;hb=177f7a345c615e5934af16c97abde59127113b4c;hp=a407c2d9918621b3aa9f057fd93597845635f1e9;hpb=7f81f26889b84542b0b35685b0e80383256cdc47;p=libs%2Fgl.git

diff --git a/source/effects/ambientocclusion.cpp b/source/effects/ambientocclusion.cpp
index a407c2d9..c35e5771 100644
--- a/source/effects/ambientocclusion.cpp
+++ b/source/effects/ambientocclusion.cpp
@@ -67,14 +67,14 @@ float AmbientOcclusion::radical_inverse(unsigned n)
 
 void AmbientOcclusion::set_n_samples(unsigned n)
 {
-	if(n<1 || n>32)
+	if(n<1 || n>128)
 		throw out_of_range("AmbientOcclusion::set_n_samples");
 
-	Vector3 sample_points[32];
+	vector<Vector3> sample_points(n);
 	for(unsigned i=0; i<n; ++i)
 	{
-		float z = static_cast<float>(i)/n;
-		float r = sqrt(1.0f-z*z);
+		float r = static_cast<float>(i)/n;
+		float z = sqrt(1.0f-r*r);
 		float d = radical_inverse(i);
 		Geometry::Angle<float> a = Geometry::Angle<float>::from_turns(d);
 		sample_points[i] = Vector3(cos(a)*r, sin(a)*r, z)*(0.1f+0.9f*d*d);