Hello everyone, I am writing a program with direct 3D and I need to render the scene to a bitmap file or memory DC. Can anyone help me how to do this? The version of directx is 8.1 and I am programming in VB 6. Thx for help.

You could substitute current render target with a texture, then render the scene as usual, then switch back, and save the texture.

Alternatively: you could render as usual, then create a texture, copy front-buffer data to its main surface, and safe the texture to file. For this approach I even found an implementation (altough very old, and in C++, but you get the point). That was in DX9.0, but I thing al this was already there in 8.1:



This screen-shot takes a little (~1 second), but accessing the front-buffer data is very slow in general.

Hope that helps.
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Thanks for your help, but I can't find D3DXSaveTextureToFile function in VB documentation, only find in C++. I think I can copy the scene to a memory DC (together a hBitmap) and the just use SavePicture to save it. How to copy the scene to a memory DC?

Quote:Original post by qboygary
I can't find D3DXSaveTextureToFile function in VB documentation, only find in C++.

So how do you load a texture? I think you can save it through the same interface.

Anyway, you can also access texture data directly:

D3DLOCKED_RECT data;pTex->LockRect( 0, &data, NULL, D3DLOCK_READONLY );// ...do something with the data...pTex->UnlockRect();