directx

I want to detour EndScene from an arbitrary DirectX 9 application to create a small overlay. As an example, you could take the frame counter overlay of FRAPS, which is shown in games when activated. I know the following methods to do this: Creating a new d3d9.dll , which is then copied to the games path. Since the current folder is searched first, before going to system32 etc., my modified DLL gets loaded, executing my additional code. Downside: You have to put it there before you start the game. Same as the first method, but replacing the DLL in system32 directly. Downside: You cannot add

I know how to use GDI to capture screen, however it is very slow (it barely captures 10 fps) I have read that DirectX offers the best speed. But before I start learning DirectX I wanted to test a sample to see if it is really that fast. I have found this question that offers a sample code to do that: void dump_buffer() { IDirect3DSurface9* pRenderTarget=NULL; IDirect3DSurface9* pDestTarget=NULL; const char file[] = "Pickture.bmp"; // sanity checks. if (Device == NULL) return; // get the render target surface. HRESULT hr = Device->GetRenderTarget(0, &pRenderTarget); // get the current adapter

I'm trying to add bump mapping functionality to my application but I'm getting very faceted models: The reason it is happening is because I'm calculating tangent, binormal and normal on per face basis and completely ignoring the normals I'm getting from the model file. The calculation currently uses two edges of the triangle and texture space vectors to get tangent and binormal, which are then used to calculate normal by cross product. It is all done on the CPU as soon as the model loads and the values are then stored as a part of model's geometry. vector1 = vertex2.coords - vertex1.coords;