diff --git a/tiny_bvh_fenster.cpp b/tiny_bvh_fenster.cpp
index 851e7a3..7cd69c1 100644
--- a/tiny_bvh_fenster.cpp
+++ b/tiny_bvh_fenster.cpp
@@ -6,7 +6,7 @@
 using namespace tinybvh;
 
 bvhvec4 triangles[259 /* level 3 */ * 6 * 2 * 49 * 3]{};
-int verts = 0, spheres = 0;
+int verts = 0;
 BVH bvh;
 
 void sphere_flake( float x, float y, float z, float s, int d = 0 )
@@ -23,7 +23,6 @@ void sphere_flake( float x, float y, float z, float s, int d = 0 )
 			triangles[verts++] = p[i], triangles[verts++] = p[i + 8],
 			triangles[verts++] = p[i + 1], triangles[verts++] = p[i + 1],
 			triangles[verts++] = p[i + 9], triangles[verts++] = p[i + 8];
-	spheres++;
 	if (d < 3) sphere_flake( x + s * 1.55f, y, z, s * 0.5f, d + 1 );
 	if (d < 3) sphere_flake( x - s * 1.5f, y, z, s * 0.5f, d + 1 );
 	if (d < 3) sphere_flake( x, y + s * 1.5f, z, s * 0.5f, d + 1 );
@@ -48,12 +47,12 @@ void Tick( uint32_t* buf )
 	bvhvec3 right = normalize( cross( bvhvec3( 0, 1, 0 ), view ) );
 	bvhvec3 up = 0.8f * cross( view, right ), C = eye + 2 * view;
 	bvhvec3 p1 = C - right + up, p2 = C + right + up, p3 = C - right - up;
-	// store primary rays in a buffer
+	// generate primary rays in a buffer
 	int N = 0;
 	Ray* rays = new Ray[SCRWIDTH * SCRHEIGHT * 16];
 	for (int y = 0; y < SCRHEIGHT; y++) for (int x = 0; x < SCRWIDTH; x++)
 	{
-		for (int s = 0; s < 16; s++)
+		for (int s = 0; s < 16; s++) // 16 samples per pixel
 		{
 			float u = (float)(x * 4 + (s & 3)) / (SCRWIDTH * 4);
 			float v = (float)(y * 4 + (s >> 2)) / (SCRHEIGHT * 4);
@@ -61,7 +60,7 @@ void Tick( uint32_t* buf )
 			rays[N++] = Ray( eye, normalize( P - eye ) );
 		}
 	}
-	// trace rays
+	// trace primary rays
 	for (int i = 0; i < N; i++) bvh.Intersect( rays[i] );
 	// visualize result
 	for (int i = 0, y = 0; y < SCRHEIGHT; y++) for (int x = 0; x < SCRWIDTH; x++)
diff --git a/tiny_bvh_renderer.cpp b/tiny_bvh_renderer.cpp
index e30e539..e3471fd 100644
--- a/tiny_bvh_renderer.cpp
+++ b/tiny_bvh_renderer.cpp
@@ -12,55 +12,43 @@
 
 using namespace tinybvh;
 
-#define SPHERE_COUNT	259
-
-struct TriVertex {
-	TriVertex() = default;
-	TriVertex( bvhvec3 v ) : x( v.x ), y( v.y ), z( v.z ), dummy( 0 ) {}
-	float x, y, z, dummy;
-};
-TriVertex triangles[SPHERE_COUNT * 6 * 98 * 3];
-int verts = 0, spheres = 0;
+bvhvec4 triangles[259 * 6 * 98 * 3];
+int verts = 0, spheres = 259;
 // ASCII shading: https://stackoverflow.com/a/74186686
 char level[92] = "`.-':_,^=;><+!rc*/z?sLTv)J7(|Fi{C}fI31tlu[neoZ5Yxjya]2ESwqkP6h9d4VpOGbUAKXHm8RD#$Bg0MNWQ%&@";
 
-void create_sphere( float x, float y, float z, float s )
+void sphere_flake( float x, float y, float z, float s, int d = 0 )
 {
+	// procedural tesselated sphere flake object
 #define P(F,a,b,c) p[i+F*64]={(float)a ,(float)b,(float)c}
 	bvhvec3 p[384], pos( x, y, z ), ofs( 3.5 );
 	for (int i = 0, u = 0; u < 8; u++) for (int v = 0; v < 8; v++, i++)
 		P( 0, u, v, 0 ), P( 1, u, 0, v ), P( 2, 0, u, v ),
-		P( 3, u, v, 3 ), P( 4, u, 3, v ), P( 5, 3, u, v );
+		P( 3, u, v, 7 ), P( 4, u, 7, v ), P( 5, 7, u, v );
 	for (int i = 0; i < 384; i++) p[i] = normalize( p[i] - ofs ) * s + pos;
-	for (int i = 0, side = 0; side < 6; side++, i += 8 )
+	for (int i = 0, side = 0; side < 6; side++, i += 8)
 		for (int u = 0; u < 7; u++, i++) for (int v = 0; v < 7; v++, i++)
-			triangles[verts++] = p[i], triangles[verts++] = p[i + 1],
-			triangles[verts++] = p[i + 8], triangles[verts++] = p[i + 1],
+			triangles[verts++] = p[i], triangles[verts++] = p[i + 8],
+			triangles[verts++] = p[i + 1], triangles[verts++] = p[i + 1],
 			triangles[verts++] = p[i + 9], triangles[verts++] = p[i + 8];
-}
-
-void sphere_flake( float x, float y, float z, float s, int d = 0 )
-{
-	spheres++;
-	create_sphere( x, y, z, s * 0.5f );
-	if (d < 3) sphere_flake( x + s * 0.75f, y, z, s * 0.5f, d + 1 );
-	if (d < 3) sphere_flake( x - s * 0.75f, y, z, s * 0.5f, d + 1 );
-	if (d < 3) sphere_flake( x, y + s * 0.75f, z, s * 0.5f, d + 1 );
-	if (d < 3) sphere_flake( x, x - s * 0.75f, z, s * 0.5f, d + 1 );
-	if (d < 3) sphere_flake( x, y, z + s * 0.75f, s * 0.5f, d + 1 );
-	if (d < 3) sphere_flake( x, y, z - s * 0.75f, s * 0.5f, d + 1 );
+	if (d < 3) sphere_flake( x + s * 1.55f, y, z, s * 0.5f, d + 1 );
+	if (d < 3) sphere_flake( x - s * 1.5f, y, z, s * 0.5f, d + 1 );
+	if (d < 3) sphere_flake( x, y + s * 1.5f, z, s * 0.5f, d + 1 );
+	if (d < 3) sphere_flake( x, x - s * 1.5f, z, s * 0.5f, d + 1 );
+	if (d < 3) sphere_flake( x, y, z + s * 1.5f, s * 0.5f, d + 1 );
+	if (d < 3) sphere_flake( x, y, z - s * 1.5f, s * 0.5f, d + 1 );
 }
 
 int main()
 {
 	// generate a sphere flake scene
-	sphere_flake( 0, 0, 0, 3 );
+	sphere_flake( 0, 0, 0, 1.5f );
 
 	// build a BVH over the scene
 	BVH bvh;
 	bvh.Build( (bvhvec4*)triangles, verts / 3 );
 
-	// trace 50x80 primary rays
+	// trace 120x50 primary rays
 	bvhvec3 eye( -3.5f, -1.5f, -6 ), view = normalize( bvhvec3( 3, 1.5f, 5 ) );
 	bvhvec3 right = normalize( cross( bvhvec3( 0, 1, 0 ), view ) );
 	bvhvec3 up = 0.8f * cross( view, right ), C = eye + 2 * view;
@@ -71,7 +59,7 @@ int main()
 	{
 		for( x = 0; x < 480; x += 4 )
 		{
-			for( sum = 0, s = 0; s < 16; s++ )
+			for (sum = 0, s = 0; s < 16; s++) // 16 samples per 'pixel'
 			{
 				float u = (float)(x + (s & 3)) / 480.0f;
 				float v = (float)(y + (s >> 2)) / 200.0f;
@@ -89,4 +77,4 @@ int main()
 	// all done.
 	printf( "\nscene: %i spheres, %i triangles.\n", spheres, verts / 3 );
 	return 0;
-}
+}
\ No newline at end of file