Anthony Appleyard opened this issue on Jan 31, 2016 · 8 posts
Anthony Appleyard posted Sun, 31 January 2016 at 1:37 AM
I made some images, including some set in a disused factory lit only by outside light coming in through windows. To make the picture visible on rendering I had to set all the Poser lights to 300% intensity. To make it easier, how can I make a Poser camera more or less sensitive to light, like changing a real camera's exposure length or stop size or using more or less sensitive film in it?
Pret-a-3D posted Sun, 31 January 2016 at 1:56 AM
Hi.
Excuse me if I mention this, but that is indeed a feature of Reality, the physics-based rendering system that we have designed for Poser. Reality uses LuxRender for rendering, which allows you to change the camera's exposure while rendering.
Didn't mean to give a sales pitch, I just saw your question and thought this might be of interest.
Thank you.
Paolo
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Boni posted Sun, 31 January 2016 at 1:13 PM
This also works similarly in Poser 11's Superfly. So we have some choices as to how to accomplish this. Reality is an excellent product and I don't what to discredit it, just adding more information.
Boni
"Be Hero to Yourself" -- Peter Tork
WandW posted Sun, 31 January 2016 at 3:17 PM
I'm not aware of a way to alter the camera's sensitivity in Firefly; the F-stop dial is used to calculate depth of field.
Are you using indirect light? If so, how many bounces? If it's 1 or 2, try increasing it.
If you're not using it, try it........
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The Wisdom of bagginsbill:
"Oh - the manual says that? I have never read the manual - this must be why."
jura11 posted Mon, 01 February 2016 at 8:54 AM
Hi there
Sadly Poser doesn't have physical camera with ISO or doesn't have such feature,which is big shame as most SW does have such feature,in Supefly you can't do that either as Superfly doesn't have physical cam with ISO,but Reality does have that and works very well and I've used that
Hope this helps
Thanks,Jura
bagginsbill posted Mon, 01 February 2016 at 11:38 AM
I am rather surprised we don't have this feature. It is the most trivial feature to add - it is nothing at all more than a simple multiplication factor on the final image.
You can simulate it using a one-sided square as a "magic lens" interposed between your camera and everything you see. You put a shader on the square that uses only a Refract node with IOR set to 1, plugged into Refraction_Color. (This makes it basically invisible and does not bend light.) Then you can adjust the "sensitivity" by changing the Refraction_Value dial. This works both in FireFly and SuperFly.
One caveat though - it will not allow "transparency" to be detected for background alpha in this mode, so if you're into compositing, forget it. However, if you're compositing, you can adjust brightness in postwork as you do the composite, so that's no real loss.
Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)
bagginsbill posted Mon, 01 February 2016 at 11:39 AM
Oh crap. I forgot I was refusing to answer questions in this forum. Dang it.
Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)
WandW posted Mon, 01 February 2016 at 1:22 PM
Your secret is safe with us... 
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The Wisdom of bagginsbill:
"Oh - the manual says that? I have never read the manual - this must be why."