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diff --git a/docs/README.D3D b/docs/README.D3D new file mode 100644 index 00000000000..b41fcb62085 --- /dev/null +++ b/docs/README.D3D @@ -0,0 +1,124 @@ + + DirectX 6 Driver for Mesa 3.0 + + +This software is distributed under the terms of the GNU Library +General Public License, see the LICENSE file for details. + + + +What do you need ? +------------------ + + - A PC with a DirectX 6 video driver installed. + + - Mesa 3.0 + + - The 3Dfx Glide library 2.3 or later for your OS (the 2.4 works fine). + The Voodoo2 requires the Glide library 2.51. The Glide 3.0 is not + compatible with the Glide 2.x so it doesn't work with the current + version of the driver; + + - Visual C++ 5.0 is only compiler test but others should be ok with + changes to the makefiles (CFLAGS/LFLAGS). + + - DirectX 6 SDK (was a MS download but not sure if still available). + + - SoftIce or another debugger that will get DPF's is nice. + + +Tested on: +---------- + Windows 95 + Windows 98 + Windows NT 5.0 (beta 2) + + +What is able to do ? +-------------------- + + - the driver will try and use DirectX to rasterize the OpenGL primitives + that are sent to the driver. The driver will fall back to SW if the rendering + context is too big. The fallback to SW still uses DirectDraw. If the driver + fails to support and operation (accum, stencil, etc) then it will try and get + Mesa to render it in SW. DirectX 6 features that are unsupported by the + installed DirectX 6 driver will be mapped to some other best fit feature. + + +How to compile: +--------------- + + These instructions assume you have Visual C++ installed. + + You might need to increase you enviroment space. You can do this by + adding the following statement to you config.sys. + + shell=C:\COMMAND.COM C:\ /p /e:8198 + + Next setup you compiler enviroment by running vcvars32.bat in the Visual C++ + 'bin' directoy. + + c:\DevStudio\VC\bin\vcvars32.bat + + Modify the D3D makefile to point at your SDK install. Example has the SDK + installed on my 'f' drive in the root. + + file: \Mesa-3.0\src\makefile.d3d + + SDKROOT=f:\mssdk + + Now you can simply make the project. If you look in the makefile you can see + I have some different targets like 'install'. + + nmake /f makefile.d3d + + +FAQ: +---- + + 1) I don't think the driver is using my DirectX driver. + + This maybe true as the current version will only select the Primary D3D driver + installed. If you 3D card is the secondary (3dfx) then your out of luck for this + release. + + 2) The driver seems like its not HW accelerated. + + If you have a video card with limited memory then you might want to try and + change your destop resolution to a low setting (640x480x16) so that the 3D part + of the card has more resources. Remeber the driver can't make the card better... + + 3) Nothing works. + + Make sure you have a DirectX '6' driver installed. Check you driver docs for this + info or use the SDK info utilities. + The final 'dll' is named opengl32.dll and is either in the same directory as the + OpenGL program or in your system directory (x:\windows\system or x:\winnt\system32). + Check your destop resolution. Most DirectX 6 drivers will only support 16bit and + 32bit color depth. To find out for sure you can check the DirectX Info Viewer in + the SDK. + + + 4) Rendering doesn't look right. + + Sometimes this is because the card doesn't support a feature that that is required. + This is usually due to unsupported alpha functions (test/blend) or texture mapping. + Some cards suffer from too small of an alpha channel. The driver does its best to + fallback on unsupported features. This is not to say the driver may not have a bug(s). + + 5) Textures look bad. + + No mipmapping in this release. + + +Thanks to: +---------- + +Brian Paul + + + + +Leigh McRae ([email protected]) +February 9, 1999 + |