Working On Material Test

PowerMax · 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

and this Dark one

: Bidirectional with MLT

Better this way

: Path Tracing

and this

: Path Tracing with MLT

Then I made a test between different Opacity, but....it appears not that Ok to me.
First this

: Opacity 13 for all objs

and it turns out like

then I tried to push it to test limit

: opacity 1 for all

and it look like

Big Black Hearts.....

Help me with this?

Pikadili89 · 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

galinette · 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

PowerMax · 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 · 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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