KeyShot Forum

Technical discussions => Lighting => Topic started by: Zvi on March 30, 2016, 05:10:56 PM

Title: Can't see the caustics
Post by: Zvi on March 30, 2016, 05:10:56 PM
Why in the image with the lying floating perfume bottle I can't see the caustics of the perfume on the surface, although there is an IES light? I'm attaching a print screen with the lighting settings.
Title: Re: Can't see the caustics
Post by: Finema on March 30, 2016, 08:37:02 PM
Hi,
Do you have a groundplane on your scene ?
Title: Re: Can't see the caustics
Post by: Zvi on March 30, 2016, 11:39:14 PM
Quote from: Finema on March 30, 2016, 08:37:02 PM
Hi,
Do you have a groundplane on your scene ?
I'm using an imported surface as groundplane.
Title: Re: Can't see the caustics
Post by: Esben Oxholm on March 31, 2016, 03:50:55 AM
Hi Zvi.
Are you able to share the scene?
Title: Re: Can't see the caustics
Post by: Zvi on March 31, 2016, 04:07:10 AM
Quote from: Esben Oxholm on March 31, 2016, 03:50:55 AM
Hi Zvi.
Are you able to share the scene?

Yes. Thanks again.
Title: Re: Can't see the caustics
Post by: Esben Oxholm on March 31, 2016, 07:18:59 AM
Thanks.

There's something fishy about your glass. Maybe it's the way it is modeled. I couldn't get the caustics to show with any type of glass-material and/or setting. I suggest that you model and split your surfaces the way that Richard shows in the other post of yours: https://www.keyshot.com/forum/index.php?topic=12259.msg59849#msg59849

Without the glass the caustics shows up just fine.
Title: Re: Can't see the caustics
Post by: Zvi on March 31, 2016, 10:34:31 AM
Quote from: Esben Oxholm on March 31, 2016, 07:18:59 AM
Thanks.

There's something fishy about your glass. Maybe it's the way it is modeled. I couldn't get the caustics to show with any type of glass-material and/or setting. I suggest that you model and split your surfaces the way that Richard shows in the other post of yours: https://www.keyshot.com/forum/index.php?topic=12259.msg59849#msg59849

Without the glass the caustics shows up just fine.
OK. I'm going to check it.
Can you tell me how did you animate the movement of the gem stone?
Title: Re: Can't see the caustics
Post by: Esben Oxholm on March 31, 2016, 10:46:45 AM
Quote from: Zvi on March 31, 2016, 10:34:31 AM
Can you tell me how did you animate the movement of the gem stone?
Sure. It is just a 360 rotation along one axis, while rotating 360 degrees along another axis.
Title: Re: Can't see the caustics
Post by: Zvi on March 31, 2016, 11:41:34 AM
Quote from: Esben Oxholm on March 31, 2016, 10:46:45 AM
Quote from: Zvi on March 31, 2016, 10:34:31 AM
Can you tell me how did you animate the movement of the gem stone?
Sure. It is just a 360 rotation along one axis, while rotating 360 degrees along another axis.
Thank you very much, you're so kind.