N3DEngine

New ones

• Blur sample (shows how to do a cool post effect, blur)
• Masking sample (shows how to mask a part of the picture, example, from a quad to make a circle)
• Normal Mapping sample (shows how to do normal mapping)

Till now I thought that doing shadows is very hard... Well, I was very wrong, because, see it yourself.

• Label
  
• Particles
  
• Terrain
  
• Water
  
• Shadows
  
• Destroy the targets

http://rapidshare.com/files/39521297/DestroyTheTargets.zip.html

It's a little 3D mini-game where you are supposed to shoot those falling targets. Nothing special, but looks cool, because it's my first 3D game with particles :P

Link

So, what is this about? When you make a game, you will have a menu. You'll have text labels all over the place, then in-game labels etc... So I've created this class to suit my needs, of course, you will have to edit it a little. The class will render text that you want, and also can act like a button (but it doesn't have to). It can be enabled, disabled, supports mouse over color change, blinking, scaling, changing opacity etc... You'll see that all from the class :)

That I had problems with drawing models?? Apparently, when the model is exported and processed in the content pipeline, all of it's meshes are positioned on 0, 0, 0 (X, Y, Z). So, if your model had a box at 1, 2, 4, when you draw it, it would draw at 0, 0, 0. So, what's the deal?? Suddenly, I discovered that they can be positioned the way you like, but you have to do something. There is an array of matrices, that will help you to do this. So, let's begin:

private Matrix[] transforms;

You will use that matrix, to alter the world matrix, and set it to the shader. Now, we need to fill it and resize it.

transforms = new Matrix[model.Bones.Count];
model.CopyAbsoluteBoneTransformsTo(transforms);

and when rendering your mesh parts, always set the new world matrix which is equal to the main world matrix multiplied with the transform. Here's a sample:

below, or see this (link)

foreach (ModelMesh modelMesh in model.Meshes)
{
effect.Parameters["World"].SetValue(transforms[modelMesh.ParentBone.Index] * Matrix.Identity);

effect.Begin();
foreach (EffectPass pass in effect.CurrentTechnique.Passes)
{
pass.Begin();
foreach (ModelMeshPart meshPart in modelMesh.Parts)
{
device.VertexDeclaration = meshPart.VertexDeclaration;
device.Vertices[0].SetSource(modelMesh.VertexBuffer,
meshPart.StreamOffset, meshPart.VertexStride);

device.Textures[0] = meshMaterials[i].Texture;

device.DrawIndexedPrimitives(PrimitiveType.TriangleList,
meshPart.BaseVertex, 0, meshPart.NumVertices,
meshPart.StartIndex, meshPart.PrimitiveCount);
}
pass.Begin();
}
effect.End();
}

Note that I multiplied the transform with Matrix.Identity, you should swap that with your object matrix...
btw, you won't get another collision detection tutorial :( It's because you should do a million things besides it, and I'm too booooored to write about them :(
Sorry again