Test scences GPU Path vs CPU BiDir

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B.Y.O.B.
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Re: Test scences GPU Path vs CPU BiDir

Post by B.Y.O.B. » Sun Jul 08, 2018 10:34 am

FarbigeWelt wrote:
Sun Jul 08, 2018 10:02 am
Sometimes it is not clear to me what is meant to exterior or interior, e.g. for a plane a 2D object with no volume.
Exterior is where the normal points, interior is the opposite side of the face.
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Dade
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Re: Strange effect using volume, CPU BiDir

Post by Dade » Sun Jul 08, 2018 12:32 pm

FarbigeWelt wrote:
Sun Jul 08, 2018 10:02 am
Sometimes it is not clear to me what is meant to exterior or interior, e.g. for a plane a 2D object with no volume.
You can not use a 2D object if you want a correct volume rendering, just use a slim box if you need a plane.
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Two Wine Glasses

Post by FarbigeWelt » Mon Jul 09, 2018 6:22 am

Seems to be close to be finished now. Glass feeds are a bit too clear due to position of the lights I guess.
The idea of the unperfect glasses fits but the effect should be smoother.
Two Wine Glasses 1.jpg
Two Wine Glasses
Cheers! 8-)
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Sharlybg
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Re: Test scences GPU Path vs CPU BiDir

Post by Sharlybg » Mon Jul 09, 2018 9:11 am

For better results try to follow a real photography as reference both for lighting and compositing !
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Re: Test scences GPU Path vs CPU BiDir

Post by FarbigeWelt » Mon Jul 09, 2018 7:27 pm

@Sharlybg
"for lighting" This is a good idea. Thanks.
"and compositing" This only helps of course if the chosen photography has a good composition.

Maybe I should note my intentions for a test scenes in future. Here I liked to show specular lights on glasses what required a little trick for the material.
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Two Wine Glasses

Post by FarbigeWelt » Tue Jul 10, 2018 6:42 am

The glasss material here is mixed with metal. The metal supports reflections. To avoid intransparency opacity for metal is set below 1.
989C3835-0052-4072-9C75-D4307730B887.jpeg
Two Wine Glasses on a checkered Table
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FarbigeWelt
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Unexpected Wave Front

Post by FarbigeWelt » Tue Jul 10, 2018 11:02 pm

My intention here is to get a feeling what is possible with volume rendering. Playing around with the nice possibilites of luxcorerender I noticed some unexpected effect. Do you see what I mean?
Strange Waves.jpg
Strange Waves
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Ususally hidden Space Property

Post by FarbigeWelt » Wed Jul 11, 2018 5:33 am

Further experiments revealed a ususally hidden space property. As it looks like space is made from subcubes and between them there is unexpected space for light extension. Please have a look at the following picture.
Space made from Subcubes.jpg
Space made from Subcubes
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Re: Ususally hidden Space Property

Post by wasd » Wed Jul 11, 2018 2:28 pm

FarbigeWelt wrote:
Wed Jul 11, 2018 5:33 am
Further experiments revealed a ususally hidden space property. As it looks like space is made from subcubes and between them there is unexpected space for light extension. Please have a look at the following picture.
Can you upload the scene?

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Scene: Ususally hidden Space Property

Post by FarbigeWelt » Wed Jul 11, 2018 7:45 pm

Yes, here it is.
Volume Waves.zip
Volume Waves
(129.55 KiB) Downloaded 4 times
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