diff --git a/geotypes.cpp b/geotypes.cpp
index f26e289..84f8d5f 100644
--- a/geotypes.cpp
+++ b/geotypes.cpp
@@ -11,6 +11,11 @@ Sphere::Sphere() {
 	radius = 1.0f;
 }
 
+void Sphere::set(Punkt3D _pos, float _radius) {
+	pos = _pos;
+	radius = _radius;
+}
+
 bool Sphere::collision(const Sphere &s) const {
 	return ((pos-s.pos)*(pos-s.pos))<((radius+s.radius)*(radius+s.radius));
 }
diff --git a/geotypes.h b/geotypes.h
index c4be645..7deb7c4 100644
--- a/geotypes.h
+++ b/geotypes.h
@@ -18,6 +18,8 @@ class Sphere {
 		Sphere(Punkt3D _pos, float radius);
 		Sphere();
 		
+		void set(Punkt3D _pos, float _radius);
+		
 		bool collision(const Sphere &s) const;
 		bool collision(const Ray &r) const;
 		bool collision(const Box & b) const;
diff --git a/model/loadobj.cpp b/model/loadobj.cpp
index 2a91068..269ef7f 100644
--- a/model/loadobj.cpp
+++ b/model/loadobj.cpp
@@ -206,9 +206,10 @@ bool LoadOBJ::load(Model *m) {
 		v.clear();
 	}
 	
-	// Calculate bounding box
+	// Calculate bounding box and rad for sphere
 	float minx=m->meshdata[0].x, maxx=m->meshdata[0].x, miny=m->meshdata[0].y, maxy=m->meshdata[0].y, minz=m->meshdata[0].z, maxz=m->meshdata[0].z;
 	for(unsigned int i=0; i<m->meshdataanz; i++) {
+		m->boundingrad = std::max(m->boundingrad, abs(m->meshdata[i]));
 		minx = std::min(minx, m->meshdata[i].x);
 		maxx = std::max(maxx, m->meshdata[i].x);
 		miny = std::min(miny, m->meshdata[i].y);
diff --git a/model/model.cpp b/model/model.cpp
index ebb51d5..ddad10d 100644
--- a/model/model.cpp
+++ b/model/model.cpp
@@ -108,6 +108,8 @@ Model::Model() {
 	normdataanz = 0;
 	loaded = false;
 	
+	boundingrad = 0.0f;
+	
 	backupmat.diffuse.set(1.0f, 1.0f, 1.0f);
 }
 
diff --git a/model/model.h b/model/model.h
index 34769ad..7c88ee6 100644
--- a/model/model.h
+++ b/model/model.h
@@ -85,7 +85,7 @@ class Model {
 		void render();
 		
 		Quader getBoundingBox() { return boundingbox; }
-		float getBoundingRadius() { return boundingrad; }
+		float getBoundingRad() { return boundingrad; }
 		
 		const Punkt3D* getMeshData(unsigned int *meshanz);
 };