2010年11月26日 星期五

tex2D vs. tex2Dproj

texCoord(  texX, texY, texZ , texW ) means texture coordinate after transforming from the texture matrix [ position goes through world, view, projection, and texture ].


We can use texCoord to fetch texture:
1.  float4 color = tex2D( sampler,  float2( texX / texW, texY/texW );
2.  float4 color = tex2Dporj( sampler, float4( texX, texY, texZ, texW ) );

The top-two methods will have the same result. Because tex2Dproj operator supports divide w in its interface.


http://www.gamedev.net/community/forums/topic.asp?topic_id=408894
http://bbs.gameres.com/showthread.asp?threadid=104316

2010年11月19日 星期五

Cascaded Shadow Map

http://http.developer.nvidia.com/GPUGems3/gpugems3_ch10.html

http://www.gamedev.net/community/forums/topic.asp?topic_id=399014

http://appsrv.cse.cuhk.edu.hk/~fzhang/pssm_vrcia/

http://hax.fi/asko/PSSM.html

hardware shadow map
http://developer.nvidia.com/object/hwshadowmap_paper.html
http://developer.nvidia.com/forums/index.php?showtopic=34
http://forum.beyond3d.com/showthread.php?t=43182
http://www.gamedev.net/community/forums/topic.asp?topic_id=515318

2010年11月5日 星期五

The d3d example in browsers - IE

http://www.gamedev.net/community/forums/topic.asp?topic_id=495203

http://stackoverflow.com/questions/202567/web-browser-in-a-fullscreen-direct3d-application

http://www.ozzu.com/programming-forum/and-directx-plus-web-browser-t95817.html

http://bytes.com/topic/c-sharp/answers/237895-directx-window-web-browser

http://efreedom.com/Question/1-202567/Web-Browser-Fullscreen-Direct3D-Application

http://thedailyreviewer.com/dotnet/view/directx-window-in-web-browser-104239128

http://ubrowser.com/

cross platform
http://www.firebreath.org/display/documentation/Building+on+Windows#BuildingonWindows-BuildingtheFireBreathPlugin 

If your firefox 3.5 crash on initialize d3d app, this problem is d3d create device type, you should try to add D3DCREATE_FPU_PRESERVE this flag. (http://stackoverflow.com/questions/1310034/directx-firefox-plugin-rendering-artifacts/1321058#1321058)

Result in firefox, google chrome, and IE:

An OpenGL Sample as Firefox Plugin

An OpenGL Sample as Firefox Plugin

http://www.codeproject.com/KB/openGL/FirefoxOpenGL.aspx?fid=459173&df=90&mpp=25&noise=3&sort=Position&view=Quick&select=2821101&fr=1


Building Firefox Plugins using Visual Studio

http://www.apijunkie.com/APIJunkie/blog/post/2008/09/Building-Firefox-Plugins-using-Visual-Studio.aspx

2010年11月2日 星期二

Volume Texel


In OGRE Engine, you should have a 3D texture and was implemnted in fixed function.

material Examples/VTDarkStuff
{
    technique
    {
        pass
        {
            diffuse 0.0 0.0 0.0
            ambient 0.1 0.1 0.15
            cull_hardware none
            lighting on
        }
      
    }
}