What is the problem with bump ?

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What is the problem with bump ?

Postby manos » Wed Jul 30, 2014 7:59 pm

manos Wed Jul 30, 2014 7:59 pm
Hello.
Since I installed the plugin for sketchup I'm facing trouble with bump maps.
It doesn't take any great effect , I have to twist the uv around and scale the image .... Anyway, when I was using only the stand alone version everything was perfect .... I was just placing the image on my geometry and using a grayscale image for bump ....no scaling no twisting ?
Maybe I'm doing something wrong ? Is there any tutus About octane for sketchup ?
Thanks
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Re: What is the problem with bump ?

Postby smicha » Wed Aug 06, 2014 1:47 pm

smicha Wed Aug 06, 2014 1:47 pm
I totally agree - I can get bumps working but setting proper scaling size of a texture responsible for bump is so hard, almost impossible. The way the data for scaling are input should be similar to Standalone.

I'll reported it my comments. Please guys vote for any change you think is useful.
viewtopic.php?f=31&t=41485
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Re: What is the problem with bump ?

Postby resmas » Thu Aug 07, 2014 10:01 am

resmas Thu Aug 07, 2014 10:01 am
Hello there.

About bump maps i dont have any trouble (apart from the mapping SU limitations).

This is in Beta Stage so it need some work, but for now adding bump is really straightfoward.

Exemple.

Simple

a plane - add a texture material, convert to Octane material, go to bump, select grayscale image, choose the texture.
then you can easely see the bump, just tweak "power" and "gamma" to get the desire effect (the same way of StandAlone)

This is the same to roughness, specular, diplscemente...etc


harder


a plane - add a color material, convert to Octane material, go to bump, select grayscale image, choose texture.

In Sketchup Material Editor correct scale of texture to your desire. The material only has color and not a texture as diffuse so you can right click on the face with the material and "octane material" - "update Skecthup texture", then the texture used in bump will be diplayed in SU face. (if the material had a diffuse texture that would be the one displayed in SU)

After that you can edit "texure position" to you desire and all runs smooth.

OCT4SU assumes the scale of the diffuse texture, and the simple way to edit scale is in the Sketchup material editor.

I agree that there is room to improvment, let try to help out fuzzy.

Nova imagem.jpg



this gif did not record all the screen, i thisn GifCam doesn work perfect with Windows8, sorry for that. But it shows what i said above.

bump.gif



cheers
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Re: What is the problem with bump ?

Postby val2k » Thu Aug 07, 2014 4:32 pm

val2k Thu Aug 07, 2014 4:32 pm
Tryed both ways easer and harder, but still can't get any bump effect in viewport. Any adjustments affect only preview in material box:
nobump.png

:cry:
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What is the problem with bump ?

Postby manos » Thu Aug 07, 2014 5:11 pm

manos Thu Aug 07, 2014 5:11 pm
The same here :-(
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What is the problem with bump ?

Postby manos » Thu Aug 07, 2014 5:13 pm

manos Thu Aug 07, 2014 5:13 pm
No bump ....????
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Re: What is the problem with bump ?

Postby resmas » Thu Aug 07, 2014 5:18 pm

resmas Thu Aug 07, 2014 5:18 pm
That is stange....in the face you are assinging the material....are the "normals" facing the correct side?
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What is the problem with bump ?

Postby manos » Thu Aug 07, 2014 6:00 pm

manos Thu Aug 07, 2014 6:00 pm
Yes.... faces facing up....
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What is the problem with bump ?

Postby manos » Thu Aug 07, 2014 6:50 pm

manos Thu Aug 07, 2014 6:50 pm
ImageUploadedByTapatalk1407437322.433928.jpg

Still no bump....
CPU: INTEL i7 3.40 GHz/RAM: 8 GB/GPU: 2XGTX690/OS: WIN 7 64 BIT/SKETCHUP 2014/OCTANE for SU
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What is the problem with bump ?

Postby manos » Thu Aug 07, 2014 6:51 pm

manos Thu Aug 07, 2014 6:51 pm
ImageUploadedByTapatalk1407437399.481255.jpg
CPU: INTEL i7 3.40 GHz/RAM: 8 GB/GPU: 2XGTX690/OS: WIN 7 64 BIT/SKETCHUP 2014/OCTANE for SU
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