Hi, I currently use mirror addressing mode when drawing texturized meshes. And it works great.

device->SetSamplerState(0, D3DSAMP_ADDRESSU, D3DTADDRESS_MIRROR);
device->SetSamplerState(0, D3DSAMP_ADDRESSV, D3DTADDRESS_MIRROR);

However, when I try to tile sprites with the ID3DXSprite interface, I overload the RECT parameter in the Draw() method. For example, the texture is 64x64 pixels, but I want to tile it for 200x200 pixels big. But the sprite is still in Clamp addressing mode. Where do I change it to mirror or wrap?

SetRect(&texBox, 0, 0, 200, 200);
...
...
sprite->Draw(pTexture, &texBox, &Center, &Position, Color);

Solved: Did not realize that the Begin() method of ID3DXSprite set it defualt to clamp. I do that SetSamplerStates as above, AFTER Begin()....

Ok, I hate to bump this but I ran into another problem.

When I render my GUI I need to have different addressing modes for different sprites.

But, it seems that I can only set it once after begin(). If I try to set the addressing mode on per sprite basis, the change gets ignored. Should I be able to change the addressing mode on a per sprite basis?

hmmm. So the ID3DXSprite interface has buit in batching? neat.

Will ID3DXSprite optimize/batch by drawing everything that shares a texture at the same time?

I prefer to avoid using ID3DXSprite to avoid confusion and portability (I found out the hard way that the 360 XDK didn't support it). What I ended up doing is writing my own 2D sprite rendering code with an Orthographic projection and HLSL shaders. Then you won't have to worry about state blocks, implement your own batching code, renderstates are a bit more straight forward, etc.

I can share it if you'd like. Right now, I'm on my Macbook again, so I have no Direct3D code on it's HDD.

Shogun.