Hi Karsten,
This code appears to be drawing a raster image directly into
the stencil buffer. Java 3D does not currently support directly
rendering into stencil buffers. We are looking into possibly
supporting this in a future release.
Doug Twilleager
Sun Microsystems
>X-Accept-Language: en
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>Content-Transfer-Encoding: 7bit
>Subject: [JAVA3D] 3D display support
>To: [EMAIL PROTECTED]
>
>Hi there,
>
>have a look at this display http://www.desden3d.com/
>You can find the follwing C code snippet somewhere
>in the documentation:
>
>/*
> * Fill the stencil mask by a memory bitmap
> */
>void SetStencilMaskDrawPixels()
>{
> BYTE *Mask=0,*MaskRunner=0;
> int ByteAlignment=0,AddBytes=0;
>
> glGetIntegerv(GL_PACK_ALIGNMENT,&ByteAlignment);
> if(!ByteAlignment) return;
>
> AddBytes=D4DWindowW%ByteAlignment;
> if(AddBytes) AddBytes=ByteAlignment-AddBytes;
>
> Mask=(BYTE*)malloc((Width+AddBytes)* Height);
> MaskRunner=Mask;
>
> for(int i=0;i<(int)Height;i++){
> for(int j=0;j<(int)Width;j++) *MaskRunner++=j%2;
> MaskRunner+=AddBytes;
> }
>
> glMatrixMode(GL_PROJECTION);
> glLoadIdentity();
> glMatrixMode(GL_MODELVIEW);
> glLoadIdentity();
> glRasterPos2i(-1,-1);
> glPixelZoom(1.0f,1.0f);
>
>
> // imporant line
> glDrawPixels(Width,Height,GL_STENCIL_INDEX,GL_UNSIGNED_BYTE,Mask)
>
>
> free(Mask);
>}
>
>
>I'm wondering wheter there is direct Java3D support for this. Would be
>very interesting for me??
>
>
>Cheers,
>Karsten
>
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