You have a - sign in front of your posizioneScena[index]. And you miss indexers at line 4 and 6.

Tnx, However, when there is an object behind and an other one in the frustum it is picked up too while it isn't visible. These are the objects I was trying to find. So are there any other possibilities?

Hi all, I am trying to find a way to get all the models that are visible on the screen. So in the end I have a list of all visible models. I think it can be done by using the Viewport.Unproject function on every pixel of the rendered frame but is there a better way to do this?

I found the answer here: http://forums.xna.com/forums/p/32901/189208.aspx#189208

Hi, I am trying to make a post processing pixel shader effect. To do this i use 2 textures. In my effect i do this: sampler samplerLeftEye; //Texture 1 texture RightEye; //Texture 2     // TODO: add effect parameters here. struct PixelInput {     float2 TextureCoordinate0 : TEXCOORD0;     float2 ...