Hello! I release my new simple program demonstrating D3D usage in Delphi.
Now you can use DirectX programs like that:
dxuLookAt(0, 0, 30,5, 0, 00, 0, 1, 0);
dxBindTexture(DX_TEXTURE_2D, texid_dx);
dxPushMatrix;
dxRotatef(180,1,0,0);
dxTranslatef(0,-10,0);
dxBegin(dx_TRIANGLES);
dxTexCoord2f(0,0);
dxVertex3f(0,0,0); ... etc.
It is first release of OpenGL to Direct3D wrapper. We can improve it together. Btw, it usable already!


(This program demonstrates OGL vs D3D rendering difference).

v0.1 features list:
- dxRotatef
- dxTranslatef
- dxuLookAt
- dxMatrixMode
- dxLoadIdentity
- dxuPerspective
- dxClearColor
- dxClear
- dxDisable
- dxEnable
- dxBegin
- dxTexCoord2f
- dxVertex3f
- dxEnd
- dxPushMatrix
- dxPopMatrix
- dxBindTexture

Download source code and EXE demo: opengl_to_directx_01.zip (300kb)

new versions at igrodel.ru
p.s. And it does NOT require D3DX.DLL =)

making dll is a good idea. Main problem is about limitations. For example opengl extensions is difficult to implement in full amout. opengl 1.0, vertex arrays and multi texturing can be made without any problems. More advanced things like shader support and directx specific extension better implement in opengl style, but not compatible with GL specifications. Maybe =) Hope this code will help learn some D3D. Thank for feedback.

I asked some questions on other forums and decided to implement OpenGL VBO through D3D. If anyone have suggestions about that please let me know.

There is very similar project already from Google: ANGLE.
Although it doesn't use OpenGL API, it uses OpenGL ES 2.0 API (very similar to GL 2.x). If you can find GL ES API headers for Delphi, then you can already use ANGLE project. It supports even shader translation from hlsl to glsl (ES set).

thank you very much! i will review it, although never before used opengl es. hope it is similar