directx-9

case 1 : I create the texture by D3DXCreateTexture(device, width, height, 0, D3DUSAGE_DYNAMIC, D3DFMT_A8R8G8B8, D3DPOOL_DEFAULT, &texture) and update the texture with white color. D3DLOCKED_RECT lr; HRESULT hr = texture->LockRect(0, &lr, NULL, 0); ConvertRGB2RGBA(width, height, pixels, stride, (unsigned char*)(lr.pBits), lr.Pitch); texture->UnlockRect(0); the render result shows as: What I want is pure white on the surface. The z value of all the vertexes equals to 0.0f. case 2 : If I create the texture by D3DXCreateTextureFromFile(device, "e:\\test.bmp", &texture); and do not update the

I am trying to find the fastest method to take the screenshot. So far I've figured out that either GDI, or DirectX can be used. Using GDI I am able to capture the screen in 35ms, while using DirectX Front buffer it takes 73ms average. I want even faster method than this. For this purpose capturing Back Buffer in DirectX seems to be a good method. I am using the following code to do the same: D3DDISPLAYMODE ddm; D3DPRESENT_PARAMETERS d3dpp; if((g_pD3D=Direct3DCreate9(D3D_SDK_VERSION))==NULL) { ErrorMessage("Unable to Create Direct3D "); return E_FAIL; } if(FAILED(g_pD3D->GetAdapterDisplayMode

I have created simple, frame independent, variable time step, linear movement in Direct3D9 using ID3DXSprite . Most users cant notice it, but on some (including mine) computers it happens often and sometimes it stutters a lot. Stuttering occurs with VSync enabled and disabled. I figured out that same happens in OpenGL renderer. Its not floating point problem. Seems like problem only exist in AERO Transparent Glass windowed mode (fine or at least much less noticeable in fullscreen, borderless full screen window or with aero disabled), even worse when window lost focus. EDIT: Frame delta time

I saw that D3DX9 is not recommended by Microsoft and not shipped with Windows SDK. I would like to adopt. I'm missing my line drawing utility. How can I replace ID3DXLine and ID3DXFont in "new" DirectX9? Generally, lines and fonts are sprites. ID3DXLine and ID3DXFont use ID3DXSprite interface under the hood. (Of course, there are other options too, but sprite approach is the most widely used) Drawing sprites So, firstly, you will need either 3rd party or your own sprite renderer. Typically, development of "bedroom" sprite engine, consists of stages: drawing bunch of simple colored quads (two