[PLUGIN]MITSUBA Render Exporter v1.5.0(20141109)

Mike Amos

OK, got the plugin working, sort of . The ui I get when runinning mitsuba do0es not allow for changing mats/textures etc, is there a ui I am missing or is there a simple explanation I am missing? I get that I do not have the full picture and having found the readme file in the mitsuba directory am kicking myself for my earlier question ans the answer is there. What am I missing?

What I see.

driven

@mike

the materials editor is part of this plugin, load it through the SCF download tool and it open mitsuba after you use it.

john

Mike Amos

Thanks, please excuse me again, I must be working on flat batteries and an old optic prescription. Slower, more notice............

tak2hata

Hi,All.
I update this to V1.2.9 in 20140330.
Improves and bugfixes.
Thanks.

sadyo

Thanks Tak2hata, it's dream come true

driven

@tak2hata,

cheers for the update, will test on mac...

john

driven

hi

can anyone else see if they can render one of Rich's models...
http://sketchucation.com/shop/models/furniture/303-marc-newson-wooden-chair
I'm getting this error message... download is free for 'Premiums'...

john

tak2hata

@driven said:

hi

can anyone else see if they can render one of Rich's models...
http://sketchucation.com./shop/models/furniture/303-marc-newson-wooden-chair
I'm getting this error message...[attachment=0:3lajmeue]2014-04-06 05.34.02 pm.png[/attachment:3lajmeue]

john

Hi,john.
This script roundup the matrix values.
42 line of code in mitsuba_main.rb
Please Delete that line.
The error will not appear.
Now I still can not return to home.
So I can not edit this script for a month.
Please modify it yourself.
Thanks.

Sminky

I am not sure this is related to this exporter plugin but allow me to ask it:
I tried rendering an animation with mitsuba and all worked fine apart that I got the frames in .exr format that is not supported by virtualdub so I can't make a movie of it;
how to change the output format of animation frames?
Sorry for my noobness, best regards and thanks in advance.

tak2hata

@sminky said:

I am not sure this is related to this exporter plugin but allow me to ask it:
I tried rendering an animation with mitsuba and all worked fine apart that I got the frames in .exr format that is not supported by virtualdub so I can't make a movie of it;
how to change the output format of animation frames?
Sorry for my noobness, best regards and thanks in advance.

hi,sminky.
It will be added in one or two week.
Now I can not return to home.
sorry please wait.

tak2hata

driven

for exr's there a very good open source app http://www.darktable.org/about/features/
[web 100%,300:6ukk5fh5]http://www.darktable.org/about/features/[/web:6ukk5fh5]

Sminky

Sorry, I forgot to say I am on windows 8.1.
Also, I could use an app to concert single exr images to jpg but when I have hundreds of frames, it becomes impossible to do it manually.
Sorry if I miss something about that app or anything else, as I said before I am still a newbie.
Thanks

P.S.:It would be great if you could make mitsuba render animation of objects done with Proper Animation plugin or other similar tools.

tak2hata

Hi,Sminky and All.
I update this to version1.3.2 in 2014.04.26.
Add Selector image format in export dialog.
and Improve material editor.
and bug fix about transformation for very small.

Enjoy!

driven

cheers

I'll give it a run over the weekend
john

Sminky

First of all, thank you very much TAK2HATA for your precious work. I am liking Mitsuba-san more and more.

I am going to propose you some things, I don't know if they are of simple implementation or not .

1)I said it in my previous post already, sorry for repeating: rendering of objects animation made in sketchup using proper-animation plugin or similars.

2)Implementing a non-raytracing rendering algorithm similar to Houdini software or similar to compare the results with different techniques.

3)Rendering texture transparencies properly (maybe it's already possible but I couldn't do it) as explained in the following pictures. The first one is just exported directly from sketchup and you can see that the fence texture is shown with transparent parts but the shadows are like if it was a non-transparent texture; the second is rendered with Twilight and you see it has transparent parts in the texture and the shadow is properly calculated as if made by just the black parts of the texture; the third one is made with Mitsuba-san and it has no transparent parts both in the texture and in the shadow.

Thanks in advance for your time and patience.
宜しくお願いします。

Exported from sketchup directly.

Rendered with Twilight.

Rendered with Mitsuba.

tak2hata

Hi,Sminky.

I did not use proper animation ,yet.
So I consider it in future version.

2)It must need new exporter.It becomes too gigantic work.So I can not do it.

3)Please use mask option in material editor of my exporter.
Or I will consider automatically enabling the mask option in future.

Thanks!

Spirou4D

Material preview:

I have Windows Vista 32bits carte Nvidia GT 630 4 go ram OpenGL Cuda core
Processor biquad 2.6 gHz

SketchUp r8.0.14346 (run very well)
Mitsuba 0.5 (run very well)

and your addon release 1.3.2

When I want material preview, notihng change! just a terminal window during few minute and close.
1 - But the thumnail don't change, I have always the "CLICK HERE UPDATE" message.

2 - when i choose for a bump map, "Same as SU" with the "*" in the left case, and i want to export my scene, Mitsuba stop with a message "Error while creating object: (null)"
but without a bummpmap there is no problem!!!

Congratulations for your great work, Mitsuba is a very good GI render engine!
Bye bye
Spirou4D

PS: I have saw on the video: In your material windows, there is the date and at home, I have a "?" ! May be it's the problem...

tak2hata

Hi,Spirou4D.

1---On my computer,preview works fine.
So I want you to send me your sketchup file include that problem and tell me the material name of the problem.

2---"*" means "Same as SU(Sketchup material)" in my plugin.
That error about bumpmap with "same as SU" will happen when the sketchup material does not have texture.
So I will change my plugin ignore mapping when sketchup material has no texture.
Please wait.

And caution-->The texture can be read only PNG and JPG and EXR file in Mitsuba Render.
So the error will happen when you use other file format for texture.

Thanks.

Spirou4D

Hi Tak2hata,

I have made a copy of my screen and add in my work folder with the SU_render of Mitsuba:
https://www.dropbox.com/s/zer0avrjuuqvov0/Essat%20mitsuba%20sketchup.zip

But no materials have got a preview! nothing run! and not date!
To use Mitsuba, I have place his folder on the desktop because in program file, there are a several problems of permissions issues with SU and Mitsuba. In this way Mitsuba 0.5 work fine.

Tell me if you want something...
Thanks a lot!
Bye bye

tak2hata

Hi,Spirou4D and All.
I update this script to version 1.3.4.
1.3.3:Auto find alpha of png file.
1.3.3:Add Selector between mitsuba "GUI" and "CUI"
1.3.4:Bug fix "*" texture problem.

@spirou4d said:

Hi Tak2hata,

I have made a copy of my screen and add in my work folder with the SU_render of Mitsuba:
https://www.dropbox.com/s/zer0avrjuuqvov0/Essat%20mitsuba%20sketchup.zip

But no materials have got a preview! nothing run! and not date!
To use Mitsuba, I have place his folder on the desktop because in program file, there are a several problems of permissions issues with SU and Mitsuba. In this way Mitsuba 0.5 work fine.

Tell me if you want something...
Thanks a lot!
Bye bye

I test your file.The material preview works very fine.
I could not find the problem.
So I modify the script of web dialog by my guess.
The path of mitsuba render include any special character?
Sketchup ruby can not accept file path include special character.

Thanks.