Working On Material Test

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PowerMax
Posts: 22
Joined: Wed May 12, 2010 12:29 pm

Working On Material Test

Post by PowerMax » Thu Jul 25, 2013 12:49 pm

Hi, there, I've just working on some test today after I saw the Material Test done long time ago by Filippo Scarso , First I'd like to test what he has achieved before---by easily changing the Opacity directly in SketchUp to manipulate the rendering result, but I failed so bad....everything is not what I expected. I found out that the result might looks different based on the shape of the object as well as the render methods.
Bidirectional Path Tracing.jpg
Bidirectional Path Tracing
and this Dark one
Bidirectional with MLT.jpg
Bidirectional with MLT

Better this way
Path Tracing.jpg
Path Tracing
and this
Path Tracing with MLT.jpg
Path Tracing with MLT
Then I made a test between different Opacity, but....it appears not that Ok to me.
First this
Settings.jpg
Opacity 13 for all objs
and it turns out like
Path Tracing Multi obj.jpg
then I tried to push it to test limit
setting2.jpg
opacity 1 for all

and it look like
test with 1 Opacity.jpg
Big Black Hearts.....

Help me with this?

Pikadili89
Posts: 104
Joined: Wed Jul 11, 2012 1:19 am

Re: Working On Material Test

Post by Pikadili89 » Fri Jul 26, 2013 4:24 am

About black hearts....I think they are not closed volume or some bugg apeared which don't provide it as closed volume...really dunno, try exploding the hearts out of the group and paint it with water color from both sides of face. I had similar problems sometimes even with cube and I do things I mentioned...epxlode them > test, if its same paint it from both side with water material. Hope this helps :)

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galinette
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Re: Working On Material Test

Post by galinette » Fri Jul 26, 2013 4:42 am

In the opacity case, could you post the igs code that is produced in both cases (opacity=1 and 13)?

Thanks

Etienne
Eclat-Digital Research
http://www.eclat-digital.com

PowerMax
Posts: 22
Joined: Wed May 12, 2010 12:29 pm

Re: Working On Material Test

Post by PowerMax » Fri Jul 26, 2013 7:17 am

Thanks~ I'll give it a shot! I'll post the result later
Pikadili89 wrote:About black hearts....I think they are not closed volume or some bugg apeared which don't provide it as closed volume...really dunno, try exploding the hearts out of the group and paint it with water color from both sides of face. I had similar problems sometimes even with cube and I do things I mentioned...epxlode them > test, if its same paint it from both side with water material. Hope this helps :)

PowerMax
Posts: 22
Joined: Wed May 12, 2010 12:29 pm

Re: Working On Material Test

Post by PowerMax » Fri Jul 26, 2013 7:21 am

Sadly I had a really bad habit that is deleting all the .igs file after done rendering to save some extra space..I admit that sounds a little bit OCD...But I'll redo the tests and post the detail information, thanks!
galinette wrote:In the opacity case, could you post the igs code that is produced in both cases (opacity=1 and 13)?

Thanks

Etienne

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