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Problem with light gleams

Forum for: VrayforC4D rendering engine from Chaos Group.

Moderatori: natas, Arkimed, visualtricks, cappellaiomatto

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Problem with light gleams

Messaggioda Allure » mar nov 11, 2014 10:24 am

Hello, I'm new here.
I have a problem with an interior scene. I have a Sunlight and IES lights. When rendering, the walls and objects receive strange light gleams. I tried to increase my render settings, but the flares did not disappear completely, they only slightly reduced. Here's my render:

If anyone can help I'll be very grateful. I've been trying to solve the problem many times, but without success.
Untitled-1.jpg (69.13 KiB) Osservato 538 volte
Messaggi: 2
Iscritto il: mar nov 11, 2014 9:51 am

Re: Problem with light gleams

Messaggioda cappellaiomatto » mar nov 11, 2014 1:02 pm

Hi Allure
Use the attachment system integrated within the forum to post your images.
I modify your post for you this time

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Re: Problem with light gleams

Messaggioda masterzone » ven nov 14, 2014 12:02 pm

Hi, alex from c4dzone staff,

This issue is usually wrong or low parameter settings on the Irradiance map into the GI panel.
If your scene is illuminated by Pysical SKY only, GI settings must be set to high quality...

Try to use a IR-LC high or very high profile to avoid this kind of light dots.

Do you never tried to make the windows illumination by place Area light outside of it? this helps GI bounce to reach high distance from the window to the other parts of the room...
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Re: Problem with light gleams

Messaggioda Allure » ven nov 14, 2014 3:43 pm

Hi, thanks for the answer.
Yes, I tried this option with the windows illumination by Area light. Do you think this option is better for realistic interior scenes? I thought that sunlight will give better illumination and good shadows in the room. I increased the Hemispheric subdivision and the Interpolated samples in my IR settings, but apparently this is not enough.
The problem is that these light dots don't appear on any render of the scene, but are of different sizes and frequency in every single picture. Sometimes they completely disappear at the same settings.
Messaggi: 2
Iscritto il: mar nov 11, 2014 9:51 am

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