Hi,

I extended the HDRStage with a custom gBuffer (position, normal) which I use 
for SSAO (I know overkill, but I need the gBuffer for other things as well).
This works fine if I use this stage only but I'm running into problems if I try 
to combine this stage with the ShadowStage. My custom gBuffer gets cleared as 
soon as I enable the ShadowStage.
I tried to enable combineblend and also attached a DepthClearBackground to the 
viewport, but that didn't helped. Does anybody knows why?

My layout is the following:
ShadowStage -> CustomHDRStage -> VisitRenderTree

HDRStage with SSAO, no light: 
https://www.dropbox.com/s/e7a5m1o7cy05ksv/hdrssaonolight.png
HDRStage with SSAO, one directional light: 
https://www.dropbox.com/s/mh0quys68h9z2d2/hdrssaodirlight.png
ShadowStage, one directional light: 
https://www.dropbox.com/s/gi52i9iqtfczax3/shadowdirlight.png
ShadowStage and HDRStage with SSAO, one directional light: 
https://www.dropbox.com/s/4xr73775w97fak5/shadowandhdrssaodirlight.png (notice 
the artifacts due the cleared wrong gBuffer)

Thanks,
Stefan

--
Dipl.-Medieninf. Stefan Wagner
Interaktive Engineering Technologien (IET)

Fraunhofer-Institut für Graphische Datenverarbeitung IGD
Fraunhoferstr. 5 | 64283 Darmstadt | Germany
Telefon +49 6151 155-473 | Fax +49 6151 155-139
[email protected]<mailto:[email protected]> | 
www.igd.fraunhofer.de<http://www.igd.fraunhofer.de>

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