check your first argument (ship) it's not a model as required by the procdedure iCollision…

that is for what i can see from your screenshot

ok i followed the colision tutorial in this site and its really good. but when i try to get it inside my code gives me some errors. looks like this.

http://img87.imageshack.us/i/gameeee.jpg/

I have a chase camera, for a smooth movement in the game. If you can give me an idea of where i should put my ChaseCamera view matrix for this code would be really helpful. : D : D

Thanks again :D

I feel like it's redrawing the boundingbox every single frame and since i don't see any relative position to it i believe it's drawing it always in the middle of the screen because of the :
"DebugShapeRenderer.AddBoundingBox(bbox, Color.Yellow);
DebugShapeRenderer.Draw(gameTime, view, projection);"

you tell him to draw the boundingbox on the view camera and on the projection matrix which will obviously draw it on screen wherever you are looking…

Again bounding box are "invisible" (i can understand you want to see it for debugging purpose though) and need a fixed position in the 3D space to detect collision with your ship…

I'm not an expert in 3D as i do mostly 2D but that's what i understand, i can only refer you to tutorial on the net that explain the fundamental of 3D collision…

 protected override void Draw(GameTime gameTime) { GraphicsDevice device = graphics.GraphicsDevice; device.Clear(Color.AliceBlue); GraphicsDevice.BlendState = BlendState.Opaque; GraphicsDevice.DepthStencilState = DepthStencilState.Default; GraphicsDevice.SamplerStates[0] = SamplerState.LinearWrap; DrawModel(shipModel, ship.World); DrawModel(terrain, Matrix.Identity); //DrawModel(shipModel2, Matrix.Identity); DrawOverlayText(); DebugShapeRenderer.AddBoundingSphere(sphere, Color.Red); DebugShapeRenderer.AddBoundingBox(bbox, Color.Yellow); DebugShapeRenderer.Draw(gameTime, view, projection); base.Draw(gameTime); }

And this is the drawModel Method.

private void DrawModel(Model model, Matrix world) { Matrix[] transforms = new Matrix[model.Bones.Count]; model.CopyAbsoluteBoneTransformsTo(transforms); foreach (ModelMesh mesh in model.Meshes) { foreach (BasicEffect effect in mesh.Effects) { effect.EnableDefaultLighting(); effect.World = transforms[mesh.ParentBone.Index] * world; //////////////////// effect.DirectionalLight0.DiffuseColor = new Vector3(0f, 0, 0); // a red light effect.DirectionalLight0.Direction = new Vector3(1, 2, 0); // coming along the x-axis effect.DirectionalLight0.SpecularColor = new Vector3(0, 0, 0); /////////////////// //////FOG/////////// effect.FogEnabled = true; effect.FogColor = Color.White.ToVector3(); effect.FogStart =28000.0f; effect.FogEnd = 150000.0f; // Use the matrices provided by the chase camera effect.View = camera.View; effect.Projection = camera.Projection; } mesh.Draw(); } }

EDIT: I think this is not even moving with the ship, its moving with the chase camera :S

device.Clear(Color.AliceBlue);

GraphicsDevice.BlendState = BlendState.Opaque;
GraphicsDevice.DepthStencilState = DepthStencilState.Default;
GraphicsDevice.SamplerStates[0] = SamplerState.LinearWrap;

DrawModel(shipModel, ship.World);

DrawModel(terrain, Matrix.Identity);

//DrawModel(shipModel2, Matrix.Identity);
DrawOverlayText();

DebugShapeRenderer.AddBoundingSphere(sphere, Color.Red);
DebugShapeRenderer.AddBoundingBox(bbox, Color.Yellow);
DebugShapeRenderer.Draw(gameTime, view, projection);

base.Draw(gameTime);
}</code>

This is what my draw method looks like, thanks again for replying : D :D :D

Anyways this box is supposed to be staying in one place while the sphere around it should go along with the ship as i press forward. But in my case everytime i create a boundry geometry, it stickes with my ship :S i tried to off set the box but it just follows the ship… i still cant figure it out ><

It seems like we are the only two persons using this forum at the moment so i'll try to help you a bit :)

I'm no expert for 3D collision but i do know a good tutorial for it on this website : http://www.riemers.net/eng/Tutorials/XNA/Csharp/Series2/Collision_detection.php.

Hoping this will help you!

I got a question on collision boxes or spheres.. well im tryin to add a bounding sphere to my space ship, and trying to add a box as well for the wall collision as u see here…

Im a noob anyways but as i add a bounding sphere or a box, it goes and aligns to my space ship, which is good to put the sphere around it, but i need the bounding box to be stationary. what am i doing wrong here? thanks for any help :D

 protected override void Draw(GameTime gameTime) { GraphicsDevice device = graphics.GraphicsDevice; device.Clear(Color.AliceBlue); GraphicsDevice.BlendState = BlendState.Opaque; GraphicsDevice.DepthStencilState = DepthStencilState.Default; GraphicsDevice.SamplerStates[0] = SamplerState.LinearWrap; DrawModel(shipModel, ship.World); DrawModel(terrain, Matrix.Identity); //DrawModel(shipModel2, Matrix.Identity); DrawOverlayText(); DebugShapeRenderer.AddBoundingSphere(sphere, Color.Red); DebugShapeRenderer.AddBoundingBox(bbox, Color.Yellow); DebugShapeRenderer.Draw(gameTime, view, projection); base.Draw(gameTime); } /// <summary> /// Simple model drawing method. The interesting part here is that /// the view and projection matrices are taken from the camera object. /// </summary>  private void DrawModel(Model model, Matrix world) { Matrix[] transforms = new Matrix[model.Bones.Count]; model.CopyAbsoluteBoneTransformsTo(transforms); foreach (ModelMesh mesh in model.Meshes) { foreach (BasicEffect effect in mesh.Effects) { effect.EnableDefaultLighting(); effect.World = transforms[mesh.ParentBone.Index] * world; // Use the matrices provided by the chase camera effect.View = camera.View; effect.Projection = camera.Projection; } mesh.Draw(); } }