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Rendering Software Used In LoTR Goes Open Source
donglekey writes "The software used by Weta to output scenes to be rendered on the LOTR trilogy has been made open source under the Mozilla license. Called Liquid, it outputs from Maya to any Renderman compliant renderer. This is extremely good news as it may quickly become a standard in high end 3D, as well as greasing the wheels for Aqsis, a GPLed Renderman renderer."
http://sourceforge.net/projects/aqsis/
Remember that what's inside of you doesn't matter because nobody can see it.
http://www.renderman.org/RMR/OtherLinks/blackSIGGR APH.html
As you will see on the page, Pixar made BMRT and entropy 'go away' in July of this year. So, it looks like that is why Aqsis is being suggested as the only remaining contender.
Remember that what's inside of you doesn't matter because nobody can see it.
Exactly. All I see this program as being capable of doing is translating the Maya geometry and shaders into the Renderman REYES based geometry and shaders. MTOR already does this, and anyone that usually buys PRman (Pixar's implementation of the Renderman standard), will also get MTOR. Besides, the really cool effects on LOTR where done using Radiosity and global illumination, which at the moment is not supported by the Renderman standard.
Povray is the equivalent of Bryce and Poser in the real world of 3d modelling. Povray doesnt even come close to the new closed-source renderers available today such as Brazil, VRay and Final Render. Hell, it wont even compare to the industry workhorses such as Mental Ray and PRman.
Renderman itself is just a standard which defines a couple of things including which functions a compatible renderer must provide and what a bytestream sent to a renderer looks like. Pixar's renderer is called PhotoRealistic Renderman (or PRMan for short). The main reason the final output of a RenderMan-compatible renderer surpasses Maya's and Blender's built-in output routines is that textures and surfaces and lighting can be defined by shaders. These are little C-like programs which calculate what a given pixel will look like based on its position, lighting and so on.
This is roughly the order of creation:
Disclaimer: I am not a professional rendering artist/shader writer/modeller, but I have played around with all three to produce some amazing results. It's great fun to get into - but to make any progress you need serious CPU cycles.
Excuse me, Aqsis compilation just bailed with some error...
--- Hot Shot City is particularly good.
http://www.dctsystems.freeserve.co.uk/rmanBasics.
It was later commercially expanded into a faster program called 'entropy'. Exluna was a company that Larry Gritz and some coworkers from Pixar (Gritz joined and then left Pixar) founded. Apparently entropy was fast enough for commercial use (eg. LOTR-scale projects that required photorealistic scenes). Pixar did not like this. At all. The sequelae were as documented here:
http://www.renderman.org/RMR/OtherLinks/blackSIGG
Now this is probably not relevant to you if you're working at wetafx or ILM or other big shops, but it's still kind of a shame that, when a product came along that WAS able to compete with PRMan, Pixar chose to squash it with lawyers rather than innovation. I'm not claiming that the case was clear-cut, but the original lawsuit apparently lacked legal merit, and Pixar then went after the individual founders of the company in an effort to drain their resources, which is rather unimpressive.
So the point is that, for a time, there WAS an alternative to PRman for big (cinematic) projects, and Pixar used lawsuits to bury it.
D'oh.
Remember that what's inside of you doesn't matter because nobody can see it.
Ehhhh, First LOTR was rendered with the standard Photorealistic RenderMan, they didn't use radiosity or global illumination.
Second you don't get MTOR automatically, it's part of the RenderMan Artist Tools (RAT). You can also buy PRMan separate with no RAT, after all why would you need RAT in render nodes.
Third over 90% of movies VFX are rendered with PRman and most of the time with no GI of any kind, for over 15 years that PRMan and Pixar came to being. That's what good lighting TDs do. GI is not the be all end all for movie VFX production work.
Fourth, Pixar announce this past SIGGRAPH that PRMan 11 will support GI via photon mapping, which included many interesting new shading language calls. This seems to have been in response to Exluna's Entropy before it's demise:
Pixar Announces Ray Tracing and Global Illumination in RenderMan® Release 11New RenderMan Shading Language Functions
On RenderMan 11 - Interview with Dana Batali from Pixar
Yes, Liquid only allows you to connect (seamlessly) Maya to a RenderMan renderer. PRMan is U$5000 per license. RAT is even more expensive. Maya Complete now is U$2000, but Unlimited is U$7,000:
Pixar software price listMaya store
As you can see from the list prices with Liquid you are partially subsituting RAT, which is $8,500. Specifically you are substituting MTOR which is the bridge between Maya and PRMan, You would still miss on things like Alfred, Slim and It.
Why it does matter is that now small studios or even artists can afford a Maya to RenderMan bridge. Potentially they could combine it with cheaper alternatives like RenderDotC, AIR or 3Delight on the renderer part, and something like Smedge for distributing the rendering jobs. So potentially it could be easier to save the cost of RAT for artists workstations. Also if a studio has in house tools, they could potentially integrate them easier since the code for Liquid will be available.
I would have replied earlier, but I just got up and didn't realize that my story had been accepted. Many people are wondering why having a connection from Maya to the Renderman rendering standard is a big deal and it's a very valid concern.
.rib file ( the file containing the frame description, which is plain text) by hand. This wouldn't be practical on a scene containing anything more than a sphere and two lights.
First of all I will say that I have known about Blender for quite a while, and while it does share many of the basic features of other high-end software (basic being the key word), it really is not acceptable to use for anything except as an intoduction to 3D. The magic 4 programs that are used for professional 3D are Lightwave, 3D Studio Max, Softimage | 3D and XSI, and Maya. They are very well architectured, very fast, and very elegant to use. There are many others but these are the programs that are used to make 90 % of the 3D CGI out there.
Maya does have Renderman output, but it is abysmal and not suitable for anything but experimentation. I have used it to test Renderman shaders and I still needed to edit the actual
This is important because it encourages standards and it encourages open source. By far the area that Linux is penetrating the fastest is the high end computer graphics market. Large studios have made sweeping conversions, not just on render farms, but on workstsations. Softimage 3D and XSI now run on Linux as does Maya. Almost every software based compositor out there runs on Linux (the exceptions being After Effects and Combustion). Many studios that have proprietary software are porting it to Linux. ILM , Digital Domain, PDI, and Weta have very big investments in it. Being open source helps, but open source is not the reason it is there. This tool being open source is one more piece of the puzzle as far open source penetrating large graphics studios. High end studios will be going to sourceforge to get a tool that they may end up depending on to get the job done. Some will start becoming active in its development, and this is very good. Its sets a precedent for releasing proprietary tools into the OS world. There are many extremely skilled programmers working in 3D.
More importantly than open source being furthered however is that it encourages standards. There are many Renderman compliant renderers out there, (Renderman is a frame description standard) Pixar's own implementation, Photorealistic Renderman is the most popular one. Most people just use the internal renderer of the software package they are using because the only standard for going between a 3D package and a renderer is Renderman, and a plugin is needed to facilitate that. Until now all of the choices were very expensive (somtimes more expensive than Maya itself believe it or not). Now that this part is free, people may start to see the benefits that come along with having a standard in place.
Aren't those graphics applications still ungodly expensive? Yes and no. Maya is now at $2000 USD for the base version (everything you need is there) which is one hell of a deal. Don't I still need Pixar's PRman? Yes and No. It is not the only Renderman renderer, but it is the best. It is sold alone or with many tools to go between Maya and itself (more expensive). If someone uses Liquid, eighther way they are saving alot of money and getting a production proven tool.
So is the entire pipeling Free? No, of course not, but that isn't the point. Open Source getting into 3D graphics studios is a very good thing, and this is a pretty cool step in the right direction. You want open minded people who just want to get the job done, and use the very best tools for their situation? That's 3D, perhaps overall one of the most intelligent and dynamic industries out there. They do their own thing and that's why Linux is taking over and OS can too, it just has to meet extremely high quality standards.
P.S. No Hollywood is a hyprocrite crap today please. Visual effects and computer graphics as a whole is so far removed from the issue that making a connection between the MPAA and a visual effects house just shows how little you know about it, and it isn't fair to the people working in the 3D industry.
This Wiki Feeds You TV and Anime - vidwiki.org
Not quite. Everyone, except Pixar, uses the same version. Pixar has more advanced development versions in use. Case in point, deep shadow maps, presented at SIGGRAPH 2000, were used in Monster's Inc. for Sully's hair. But the commercial version has no deep shadow maps implementation until version 11 (to be released Q4?). SO they did have a more advenaced version than everyone else and in over 2 years made no mention of implementing it on PRMan. Who knows what else they had in house with no immediate plans to incorporate into the commercial release.
;-).
The other thing, well did you really miss the or notice any GI absence problems in Monster's Inc. Animated films are very art directed. One example, say you wanted to modify where a shadow falls without altering the compositon of the rest of the elements. With raytrcing and other such GI solutions it would be difficult or at leats much more than say in a renderer like PRMan wher you can generate the shadow map independently or even use a paint program. A specific example is Geri's glasses in Geri's game. The refraction you see there is not realistic, it was cheated to make his eyes look bigger and angelic. A raytacer would have put something else, not what the director intended.
As I mentioned Entropy was quicly catching up to PRman to the point where major Pixar clients were starting to use it. ILM needs a raytracer for specific techniques, like generating reflection maps, handling HDRI, and the all important occlusion maps used since Pearl HArbor and JP3. From what an important ILM VFX supervisor mentioned they were excited about a RenderMan renderer where they could combine the best of both worlds, the speed, flexibility and robustness of REYES plus the specific features of GI.
I doubt Ice Age had anything to do with it. After all PDI uses some sort of A-buffer scanline renderer as far as I know with no GI, or at least none for quite some time. Shrek looked fantastic basicly with no GI either. The lighting philosophy of both these places doesn't hinge on having GI on the renderer.
But you are also right, they might have the best of both worlds to compete, not only on their coomercial products, but on their animated movies. Last SIGGRAPH at the photon maps course, one of the presenters was a guy from Rhythm and Hues, so I guess their propietary renderer might get GI. I also saw people frmo ILM, PDI and a whole other studios. So maybe in the end or in the future you are absolutely right. Just to many facts and changes to deal with