Am 04.12.2013 14:34, schrieb David Given:
> I'm trying to render space scenes with a extremely sun. Rather than
> fiddle around with trying to artificially add lens flares via NKFlare,
> it occurs to me it ought to be possible to use the new EXR support to
> render the image with the sun at its true brightness, and then
> post-process the image to add bleeding around the bright pixels to
> produce a similar effect. (I won't get a lens flare, but I'll be quite
> happy with smearing around the sun to emphasise its brightness.)
>
> Unfortunately I don't know enough magic Google terms to find out whether
> such a thing is possible or what tools are available to do it.
>
> What should I be looking for?

"The Gimp" :-)

Any modern image processing software with OpenEXR support will do. All 
you'll need to do is blur the image, and blend it with the original image.

If you want to achieve the effect in a single step, "bloom" is probably 
what you're looking for.

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