Hello Carsten,
when I call
shl->setUniformParameter("VDTSystemTime", systemTimeVar);
the parameter gets updated correctly. Seems to me that updateParameters() is
not called when I set the ShaderParameterValue directly. Any ideas?
Michael
-------- Original-Nachricht --------
> Datum: Thu, 17 Feb 2011 14:08:16 -0600
> Von: Carsten Neumann <carsten_neum...@gmx.net>
> An: opensg-users@lists.sourceforge.net
> Betreff: Re: [Opensg-users] OpenSG1.8 - SHLChunk Shader Timer
> Hello Michael,
>
> On 02/17/2011 10:58 AM, Michael Raab wrote:
> > Catching the required parameters works perfectly. After that I try to
> > update them each frame. What I do is to iterate over the list of
> > interesting ShaderParameterPtr's and call setValue(). The code for the
> > system time looks like this:
> >
> > if((*paramIt)->getName() == "VDTSystemTime")
> > {
> > ShaderParameterRealPtr p =
> > ShaderParameterRealPtr::dcast((*paramIt).get());
> > if( p != osg::NullFC )
> > {
> > beginEditCP(p, ShaderParameterReal::ValueFieldMask);
> > p->setValue(systemTimeVar);
> > endEditCP(p, ShaderParameterReal::ValueFieldMask);
> > }
> > }
> >
> > The code compiles and runs fine. But the parameter seems to be not
> > applied to the shader.
> > Do I miss something?
>
> this looks like it should work. Can you try:
>
> SHLChunkPtr shl; // pointer to an SHLChunk with a VDTSystemTime param
> Real32 time;
>
> shl->getUniformParameter("VDTSystemTime", time);
>
> to verify you get the expected value?
> You can also try if storing the SHLChunks that have the parameter and
> then calling:
> shl->setUniformParameter("VDTSystemTime", systemTimeVar);
>
> makes a difference (i just checked that it internally does pretty much
> the same as you are doing above, so I'm not sure where the problem might
> be).
>
> Cheers,
> Carsetn
>
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The ultimate all-in-one performance toolkit: Intel(R) Parallel Studio XE:
Pinpoint memory and threading errors before they happen.
Find and fix more than 250 security defects in the development cycle.
Locate bottlenecks in serial and parallel code that limit performance.
http://p.sf.net/sfu/intel-dev2devfeb
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