[osg-users] [Compute Program executed on useprogram :/?!]

[Julien Valentin]

Hi Robert

That's sound more reasonnable than what i was affraid to interpret...
I'll check on my own, because I'm sure I've something that might help us here...(A thing we discuss long time ago about making VAS a property)
I'll make a PR to know your feeling about it

Cheers


robertosfield wrote:
> HI Julien,
> 
> On 25 November 2017 at 19:02, Julien Valentin
> <> wrote:
> 
> > If I don't misunderstood:
> > Using a dedicated class for CS would introducing a new base class "Dispatchable" for Drawable(vas) and DispatchCompute(no vas) that would replace Drawable as Renderleaf.
> > Is that what you think about?
> > 
> 
> Drawable is the base class that wraps up dispatch, I'm not going to go
> have a base class for a base class just for the purpose of
> DispatchCompute.  We have to avoid complicating the OSG class
> structure and avoid any CPU over-head associated with adding features,
> especially niche ones.
> 
> The issue of VAS is one I'll need to look at, this will need to be
> switched off for DispatchCompute.  I am not at my dev machine right
> now so will look into this later.
> 
> Whatever solution we end up with we'll need an osg::DispatchCompute
> that wraps up glDispatchCommpute and it's parameters, this could be
> called explicitly as a callback or state attribute.  The next step
> would be to make DispatchCompute a Drawable and work out how to switch
> off the VAS/DispalyList support.
> 
> Robert.
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