problem with glass

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Refracty
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Posts: 1599
Joined: Wed Dec 01, 2010 6:42 pm
Location: 3D-Visualisierung Köln
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Hi,
I am using pathtracing to illuminate a architectural scene (daylight system). There are multiple windows where the sun in shining through glass.
For the shader I am using a simple specular material.
The problem is that there are no realistic shadows inside the bulilding (for example caused by the roof construction below the roof windows). I can only get the right lighting, when I decrease the opacity of the specular material (e.g. 0.1).
It does not feel right to change the opacity of the material to achive the look and the glass shaders from the live database have an oppacity of 1. But they are not working, too.
So how can I get realistic shadows while using the daylight system and pathtracing?
Is there a trick to achive shadows passing through glass while using direct lighting? This would make things much faster to render.
Thank you for the help.
Any ideas appreciated.
Refracty

Release 2.45
User avatar
Refracty
Licensed Customer
Posts: 1599
Joined: Wed Dec 01, 2010 6:42 pm
Location: 3D-Visualisierung Köln
Contact:

Any ideas?
Thanks
User avatar
Refracty
Licensed Customer
Posts: 1599
Joined: Wed Dec 01, 2010 6:42 pm
Location: 3D-Visualisierung Köln
Contact:

Thank you bepeg4d!
It is a good work around for pathtracing.
For direct lighting it would be great if Refractive Software would make it able to 'hide' a material. So the object would not be considered for Ambient Occlusion and so the light would shine through. Maybe overlaying the reflection afterwards in realtime would be perfect work around without having to rewrite the kernel completely.
I hope they will consider. It would be very, very helpful.
Cheers
Refracty
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