Re: Problem with shadow render opengl

[Daniele C. <dca...@in...>]

I try so:
drawContextDisplay is a TQ3DrawContextObject global variable

        TQ3AcceleratedOffscreenPropertyData propData;
        myStatus = Q3View_GetDrawContext 
(gDocumento3D.fView,&drawContextDisplay); // I get the drawcontext display
        myDrawContext = MyNewDrawContext(lar,alt);// I create the Pixmap 
drawcontext (TQ3PixmapDrawContextData)
        propData.masterDrawContext=drawContextDisplay;
        propData.copyFromPixmapAtFrameStart=kQ3False;
        propData.copyToPixmapAtFrameEnd=kQ3False;

        myStatus =    Q3Object_SetProperty(myDrawContext, 
kQ3DrawContextPropertyAcceleratedOffscreen,sizeof(propData), &propData );
        myStatus=Q3View_SetDrawContext(gDocumento3D.fView,myDrawContext);

   
Do you think it is a correct operation?
The variable  myStatus is always True but when I call 
Q3View_StartRendering program crash.

James W. Walker ha scritto:
> On Sep 11, 2007, at 2:35 AM, Daniele Cavallini wrote:
>
>   
>> You are right in Mac there is not problem.
>> I work with a imac intel  core due with video card  ATI Radeon x1600
>> I can well compare mac os x and windows xp.
>>
>> I tried to use kQ3DrawContextPropertyAcceleratedOffscreen:
>>
>> TQ3Boolean    theFlag = kQ3True;
>> Q3Object_SetProperty( fRenderer, kQ3RendererPropertyShadows,sizeof 
>> (theFlag), &theFlag );
>> Q3Object_SetProperty( fRenderer,  
>> kQ3DrawContextPropertyAcceleratedOffscreen,sizeof(theFlag),  
>> &theFlag );
>>
>>
>> but without success.
>>     
>
> kQ3DrawContextPropertyAcceleratedOffscreen is a property that must be  
> set on the draw context, not the renderer.  That's why it's called a  
> draw context property.  Also, the value is not a TQ3Boolean.  See the  
> documentation in QuesaDrawContext.h.
>
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