Maya and GI?

[graphiouz]

Ok this is my thoughts., i dont see why AW should throw in a GI render in Maya., Its too expensive[atleast today] bye that i mean production/time expensive,.

what they should do is making a 'Print/design package' for example to print-artist and designers e.c.t with a GI solution, for a sheap prize!

.

[svenip]

i agree. today it is to time intensive. and you don' really need it. if you have a real demand on that you could try the mental ray for maya. it's not very well implemented yet, but this will change. then you have one of the best.

[Array]

Why is it then that packages like Entropy and Renderman (as of version 11) have gi?

[graphiouz]

because of all the hype! and new technology. ahhh i dont have anything against a fine GI render,. i dont know why AW dont implant a GI render in maya? and i dont think its nessesary..
Why not give them a E-mail?

[Darrell Croswell]

i dont mean to change the subject, but what is renderman? (meaning is it a batch renderer, or an advanced renderer? etc.)

and if i somehow get it, will i be able to gi render my maya scenes?

[DSedov]

Ok, now that practically EVERY commercial package out there has GI (including max, with the release of the new beta), what is holding alias|wavefront back? Do you guys think they can hammer out a production worthy solution by the time 4.5 ships? And if so, do you think that it will only be available to users of the Maya Unlimited package ?



To begin with "Max has GI" statement is the same as saying the same about Maya. Max's native render doesn't support GI, but there is a set of plug-in render, like Brazil, FR etc.

There is Mental RAy connection for Maya, and personally I believe that MR is one of the fastest GI renders out there. Now please note, that MR that is awailable for max is 2.1 and not 3.0 (which is the case for maya)

If you get Mayaman and entropy, you can get pretty good results as well. Nevertheless, entropy seams a bit slower on GI then MR, but more scalable.

However, being a Maya user, I can say that LW still is my favourite GI solution.

And at last, to answer your questions about renderman-complient renders having GI, I can say only one thing.
The reason Entropy has a GI can be explained as a compatitive move to PRMAN, still its not something that is going to be used by big houses. And the reason PRMAN11 is goign to hav GI and raytracing, is to get rid of the idea of rayserver, and use of MR as GI ambience baker (which ILM uses, along with light occlusion technique).

[Array]

3dsmax5 has GI built in.

[DSedov]

3Ds MAX5 is not out yet. And even if will have GI it doesn't prove anything. The point is that Maya doesn't need GI as a built in feature. I dont think that using Maya for print work would be a wise dissision.

[DSedov]

More then that. Id consider a waste of R&D resources to built a GI into Maya by AW itself, simply because it focuses on othe sides of 3D software developpment. I don't know if most people know, but AW has a research facility in Taronto and India that focuses on developping new idea in interactive DCC.

[Array]

Dont you think this same discussion came up with the proliferation of ray tracing? Look at how common place it is now, and for that matter, how fast it is on current hardware. Don't you think the same thing will eventually happen with GI?

[SheepFactory]

Originally posted by Darrell Croswell
i dont mean to change the subject, but what is renderman? (meaning is it a batch renderer, or an advanced renderer? etc.)

and if i somehow get it, will i be able to gi render my maya scenes?


:eek: Whoa! Wake up dude.

http://www.pixar.com/renderman/index.html

A|i

[bry]

Hi,

I'd really like to see a GI option in Maya's built-in renderer.

I use Cinema 4D and it has a great GI render engine, and it's not only suitable for print. You can get excelent results with low settings, that won't take so long, so they're also suitable for animation.

I didn't heard of anything related to this in Maya 4.5's new features, but it would be a great surprise, along with Fluid Effects!


bry

[DSedov]

I don't know... maybe im just too 'oldschool' with renderman =)
There is a hardware that does raytracing, but untill there is hardware to do GI, this is pointless to discuss, as discussing that maybe in 50 years there will be hardware to do molecular rendering in realtime with half eye-perception resolution =))

Ahh.. this is dipressing... sorry guys if I am, I broke my back yesterday, so I need some time to recover, untill I will be all happy about GI =)

[Array]

Actually GI can be achieved by extending ray tracing. It's called path tracing, which then can be extended to double path tracing. Read Henrik Wan Jensen's "Realistic Image Synthesis Using Photon Mapping" for more info. Heres the URL:

http://www.amazon.com/exec/obidos/ASIN/1568811470/qid=1022642754/sr=8-1/ref=sr_8_1/102-1275420-5979325

[DSedov]

but there is a reason it is not implimented in hardware, right? =)

[graphiouz]

That book seams interesting.,[dont know nothing about this path-tracing] You never know, maybe that technic is what we will be the using in future Maya,,

And if you look at all the plugs/scripts that focus on shaders domeLights and nodes, and its faster and with a pretty nice result, and its young, still in development.
But hey GI is still in development to soo you never know?

.

[Array]

dsedov- nah ur missing my point, path tracing using the same functions as ray tracing, intesections, find the normal, blah blah blah, so it could be implemented using hardware.

[DSedov]

I agree. and i am a bit fameliar with that technique, but my point is not that this technology can or cannot be implemented in hadware, but that it is not implemented. GI was on market for a while and Renderdrive could do that kind of stuff with their hardware raytracing for sure, but they didn't. I start to suspect that this might a marketing issue along with tehnological

[Solesurvivor]

umm, what is GI ? :shrug:

[-wT-]

GI means the "real ways" lights work, like bouncing from an object to another (And possibly take some of it's color to the next object, AKA color bleeding). For an example, turn of all lights in your room, now only the sunlight lights up your room. Though stuff that aren't facing the sunlight, get illuminated abit... that's GI AKA light bouncing.

[bry]

Hi,

GI stands for Global Illumination.
Another most comonly used term for GI is Radiosity.

bry

[Solesurvivor]

haha, that GI, now i get the picture.. I know lightwave has a GI renderer, but there are ways too fake GI in maya, there's a tutorial on that matter @ Highend3d

[Array]

Actually GI and radiosity are two differant things. GI just means lighting the scene based on a physical "simulation" of light. Radiosity is calculating diffuse reflections by subdividing the scene into many sub-patches (cool effects like caustics and sub surface scattering are too impractical to simulate using this method). So radiosity can be part of the GI solution, but on it's own is not GI.

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