[Opensg-users] OpenSG 2: HDR example

[Johannes B. <jb...@da...>]

Hello,

I would like to build a HDR example. I have read the following chapter about HDR:

http://www.learnopengl.com/#!Advanced-Lighting/HDR

and now I try to get exactly that with OpenSG.

If I understand the article correct I do need to render into a floating point format color target. Here are some questions I have...

How do I get the floating point format render target if I use the HDRStage?
Where does it come from?
How can I setup my own tone mapping shader with the HDRStage?
Do I always have to pay for the shrinking  and blurring stuff?
What does the shrinking do at all?
How can I rescue the depth buffer from the original scene rendering into the display depth buffer?

Sorry for bothering,

best,
Johannes