Glass tabletops, sun and interior shadows

38 posts

Re: Glass tabletops, sun and interior shadows#382624

By feynman - Sun Aug 31, 2014 10:13 am

- Sun Aug 31, 2014 10:13 am #382624

Sure, I hope it is useful in some way. I find this set-up very versatile for all catalogue image needs - situational images with a few accessories and on-white images clients also always need.

Re: Glass tabletops, sun and interior shadows#382628

By choo-chee - Sun Aug 31, 2014 1:09 pm

- Sun Aug 31, 2014 1:09 pm #382628

well I opened it and took the sun and softbox to one of my scenes... will see tomorrow how it looks ....

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Re: Glass tabletops, sun and interior shadows#382643

By choo-chee - Mon Sep 01, 2014 12:41 pm

- Mon Sep 01, 2014 12:41 pm #382643

played with it a bit after making some adjustments so it will open on my system....
however since many of my scenes are with opened windows that show the porch, having the sun so close makes the shadow too distorted in the perspective, so I'm not sure if it's a usable solution.
after 16 hours of render, I got so SL 14 with noise at 3000X1500.

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Re: Glass tabletops, sun and interior shadows#382649

By Fernando Tella - Mon Sep 01, 2014 2:27 pm

- Mon Sep 01, 2014 2:27 pm #382649

Well, you can put the sun further away. The relation between the distance of the mock-up sun emitter and its diameter is 1m. --- 0.009m. If you put it further , make it bigger. But, I think, the further it is, the noisier the image will be, right?

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Re: Glass tabletops, sun and interior shadows#382650

By choo-chee - Mon Sep 01, 2014 2:30 pm

- Mon Sep 01, 2014 2:30 pm #382650

excatly

already did some tests ...
and I can tell you that physical sun always looks best... but noisy

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Re: Glass tabletops, sun and interior shadows#382734

By eric nixon - Wed Sep 03, 2014 6:22 pm

- Wed Sep 03, 2014 6:22 pm #382734

But, I think, the further it is, the noisier the image will be, right?

No. Distance shouldn't matter, if its being scaled up in proportion.

Materials, Arch-viz, C4D Dynamics

Re: Glass tabletops, sun and interior shadows#382735

By Fernando Tella - Wed Sep 03, 2014 6:59 pm

- Wed Sep 03, 2014 6:59 pm #382735

eric nixon wrote:
But, I think, the further it is, the noisier the image will be, right?
No. Distance shouldn't matter, if its being scaled up in proportion.

I think it does matter because your scene keeps the same size. As the source of light gets further, there is a smaller amount of angles with which the rays can find the light source.

I'll try to make a sketch to show it.

Edit: Here it is! I proudly present, my crappy sketch!

Yes, my sun is right on top; the rays in this scene have to go nearly perpendicular to the ground or won't hit the light source; any other angle will fail to reach it.

Maybe I'm wrong cause I'm making it all up in my mind.

http://www.ftella.com

Re: Glass tabletops, sun and interior shadows#382739

By feynman - Wed Sep 03, 2014 9:58 pm

- Wed Sep 03, 2014 9:58 pm #382739

In my case, which is your approach, I have two suns - a small and close one (hard shadows) and a large and far one (soft shadows). The rendering time/SL in my case is identical.

My sun is bigger than yours : )

Size doesn't matter, so they say : D