Mitsuba Physically Based Render

Mitsuba Physically Based Render

Postby Jim » Wed Aug 25, 2010 12:47 pm

Found this one through tak2hata's (Make Fur) web site.

The program currently runs on Linux, MacOS X and Microsoft Windows and makes use of SSE2 optimizations on x86 and x86_64 platforms. So far, its main use has been as a testbed for algorithm development in computer graphics, but there are many other interesting applications.

Mitsuba comes with a command-line interface as well as a graphical frontend to interactively explore scenes. While navigating, a rough preview is shown that becomes increasingly accurate as soon as all movements are stopped. Once a viewpoint has been chosen, a wide range of rendering techniques can be used to generate images, and their parameters can be tuned from within the program.


http://www.mitsuba-renderer.org/
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Last edited by Jim on Fri Aug 27, 2010 3:43 pm, edited 1 time in total.
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Re: Mitsuba Physically Based Render

Postby Ecuadorian » Wed Aug 25, 2010 1:28 pm

Thanks, JIm. I had to delete the index.html part to be able to load the site...

http://www.mitsuba-renderer.org/

The main page shows a lovely image of a "rough dielectric" material (sandblasted glass?).

I remember "mitsu" means "three units" in japanese. So... what does "ba" mean here?
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Re: Mitsuba Physically Based Render

Postby Jim » Wed Aug 25, 2010 1:35 pm

Thanks.

It supports collada import and distributed parallel rendering, so may be well suitable for a Sketchup render farm. I don't really know much about it, I just thought it might be interesting to someone.
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Re: Mitsuba Physically Based Render

Postby EarthMover » Wed Aug 25, 2010 3:00 pm

Interesting that it works with .XML files. I tried it with the Thea exporter, but got an error. This looks very promising as a free unbiased renderer.
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Re: Mitsuba Physically Based Render

Postby notareal » Wed Aug 25, 2010 9:49 pm

EarthMover wrote:Interesting that it works with .XML files. I tried it with the Thea exporter, but got an error. This looks very promising as a free unbiased renderer.

Well... xml is not a universal language. Obviously they use different XML schema :) Have to say, there is something I like in mitsuba. Worth to keep eye on.
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Re: Mitsuba Physically Based Render

Postby vidy » Sat Aug 28, 2010 4:30 am

hello notareal,

can you give me advice to install this render step by step, i already read the instruction, i saw it need quite a lot software to install, please give a clue.. thanks

it looks interesting on the video demo

regards,
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Re: Mitsuba Physically Based Render

Postby notareal » Sat Aug 28, 2010 6:20 am

vidy wrote:hello notareal,

can you give me advice to install this render step by step, i already read the instruction, i saw it need quite a lot software to install, please give a clue.. thanks

it looks interesting on the video demo

regards,


Don't know your system, but if you are using windows, just download the distribution zip-archive, unpack it and run mtsgui.exe. There no installation. Don't forget to load some example scenes they do provide.
I believe this could help http://www.mitsuba-renderer.org/documentation.pdf
http://www.mitsuba-renderer.org/download.html wrote:Disclaimer: This is an early beta release, please don't expect too much.

It's really what they say, early beta - but interesting concept.
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Re: Mitsuba Physically Based Render

Postby vidy » Sat Aug 28, 2010 7:20 am

im using XP SP3, and when i hit mtsgui.exe i got this message



Uploaded with ImageShack.us

probably someone know what software should i installed to correct this problem? thanks

regards,
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Re: Mitsuba Physically Based Render

Postby notareal » Sat Aug 28, 2010 7:30 am

Try to update your display drivers.
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Re: Mitsuba Physically Based Render

Postby vidy » Sat Aug 28, 2010 8:46 am

thanks for your suggestion notareal, i think it won't work when i do it at office, my VGA is onboard card,
i will try this mitsuba at home.

EDIT: already try at home, but don't know how to open a file or import it (same case like earth mover did), anyway its still pre beta right? this software looks going to be a good one as an open source.

regards,
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Re: Mitsuba Physically Based Render

Postby Ecuadorian » Mon Aug 30, 2010 4:01 am

According to the development blog, the Collada importer is ready but only usable via command line (can't figure out how to do this). It seems like the importer will be integrated into the GUI soon, however:

http://www.mitsuba-renderer.org/devblog/
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Re: Mitsuba Physically Based Render

Postby Ecuadorian » Wed Nov 24, 2010 9:20 pm

The current version can import Collada files.
To export from SU:

-Make your model a component/group
-Right click > Flip along Component's Blue
-Rotate it +90º on red axis (follow right hand rule)
-When exporting to Collada, make sure "triangulate all faces" is checked and "preserve component hierarchies" is unchecked.

In Mitsuba, just go to File > Import.

That's it. That's all I know for now. :mrgreen:
Check the PDF manual. Most of it is technical, but pages 24-25 offer a promising glimpse of Mitsuba's power:
http://www.mitsuba-renderer.org/docs.html

For now, here's a simple SketchUp model rendered with Mitsuba's Path Tracer in 23 seconds on a Core i5:
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Re: Mitsuba Physically Based Render

Postby mozzie » Mon Nov 29, 2010 4:30 am

Ecuadorian wrote:Thanks, JIm. I had to delete the index.html part to be able to load the site...

http://www.mitsuba-renderer.org/

The main page shows a lovely image of a "rough dielectric" material (sandblasted glass?).

I remember "mitsu" means "three units" in japanese. So... what does "ba" mean here?


Its a green herb/ vegetable, and the FAQ says that the dev was cooking with it at the time and gives this reference (http://en.wikipedia.org/wiki/Cryptotaenia). It does have a sort of 3 lobed leaf, so maybe thats it?
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Re: Mitsuba Physically Based Render

Postby Khai » Mon Nov 29, 2010 5:51 am

shame it's Intel only :(

"Fatal Error: This program was not built to run on the processor in your system. The allowed processors are: Intel(R) Core(TM) Duo processors and compatible Intel processors with supplemental Streaming SIMD Extensions 3 (SSSE3) instruction support"
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