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Author Topic: Is this render correct physically?  (Read 3156 times)

2016-11-05, 18:44:36

fa2020

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Is this render correct physically?
Hi guys,
I tried to render my scene using Corona but I think the liquid inside the vial isn't correct physically. What's your opinion? Is this a bug for Corona 1.5? Those dark areas inside the liquid are unusual.
Please help me.
Thanks.
« Last Edit: 2016-11-05, 19:01:48 by fa2020 »
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2016-11-05, 20:39:48
Reply #1

romullus

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Re: Is this render correct physically?
When you're rendering refractive materials, make sure that your liquid and bottle are watertight meshes, also liquid should be ever so slightly larger than inner surface of bottle mesh and bottle should float above table just a little bit. If those conditions are met, then Corona should have no problems to render physically plausible result.
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2016-11-05, 21:23:12
Reply #2

fa2020

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Re: Is this render correct physically?
Thank you for your response. I' have scaled up the water a bit so that it could have a contact with the glass. The bottle has no tigh contact with the floor means the bottle is a bit upper the floor. For making sure, I deleted glasses and only water meshes were left just above the floor but those dark areas exist.
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2016-11-05, 21:29:55
Reply #3

burnin

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Re: Is this render correct physically?
you also need intense environment lighting, if surroundings are black/dark so will be reflections & refractions
also check for number of light paths and bounces, too low values can produce black/dark areas

edit
oh... and normals, overlapping geo, double verts... blablalbla ...
otherwise, comparing with references is looking good
« Last Edit: 2016-11-05, 23:08:47 by burnin »
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2016-11-05, 21:56:47
Reply #4

romullus

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Re: Is this render correct physically?
You can try to change absorbtion distance and/or rotate/change HDRI to find from where those dark spots are coming, but to be honest, your result doesn't look unplausible to me.
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2016-11-05, 23:16:56
Reply #5

sprayer

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Re: Is this render correct physically?
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