Maya Training

Introduction to Hard Surface Modeling

Maya Training

Interiors and Furniture Vol 1 & 2 - Modeling & Cloth

Maya Training

Shading, Lighting and Rendering the Bedroom in MR

Maya Training

Robot volume one - Modeling with animation in mind

Maya Training

Spach-Alspaugh House the complete courseware

Maya Training

Burt The Cartoon Dinosaur Vol 01 - Modeling

New Maya Training

Robot Volume 02 - Hybrid Rigging
You are here > Home > SimplyMaya Community Forums
Loading

Welcome to Simply Maya

Please Sign in or Sign up for an account

Member Login

Lost your password?

Not a member yet? Sign Up!

Old 17-02-2003, 09:53 AM   #1
Bolek
Subscriber
 
Bolek's Avatar
 
Join Date: Jan 2003
Posts: 8
Thanks: 0
Thanked 0 Times in 0 Posts
Question RLA and after Effects

Hi all,

let me explain my problem first : I rendered a sequence of images with maya. In order to be able to apply some effects during compositing (DOF, fog...), I rendered the files in RLA including alpha mask and z-depth.

I checked the files in fcheck and everything (including z-depth) diplays properly but once I import the files in After Effects, the z-depth channel appears completely flat (grey).

Has anyone been confronted to that problem ? Any solution ?

Thanks in advance.
Bolek is offline   Reply With Quote
Old 17-02-2003, 02:55 PM   #2
ragecgi
Super Moderator
 
ragecgi's Avatar
 
Join Date: Sep 2002
Location: Minnesota, USA
Posts: 3,709
Thanks: 0
Thanked 13 Times in 12 Posts
Default

I don't think that the Z is even supported in After Effects yet....
At leant not in 5.5 pro bundle...

I've always had to render my Z out to another separate TGA sequence, and use that sequence as my Z, or a track-matte-depth-pass.

Try the "Yuya Depth Shader" on Highend for a GREAT way to get an antialiased Z pass....
__________________
Israel "Izzy" Long
Motion and Title Design for Broadcast-Film-DS
izzylong.com
ragecgi is offline   Reply With Quote
Old 17-02-2003, 03:11 PM   #3
Bolek
Subscriber
 
Bolek's Avatar
 
Join Date: Jan 2003
Posts: 8
Thanks: 0
Thanked 0 Times in 0 Posts
Default

thanks for your help. However I've been investigating a little bit on the subject and here is what I could find out.

First of all, After effects CAN handle the zbuffer in RLA files (through 3d channel extract, depth of field and other plugins that come in standard with 5.5 pro bundle version). BUT ! (yes there is a but) the only problem is that it only handles RLA files coming from 3ds max.

RLA file format is formerly from Alias Wavefront (done in 1991). However when 3ds max got released, Discreet put their nose into it and "enhanced" it (actually "modified" is the word) with gbuffers support. Eventually the old file format isn't recognized by common apps and they only support the new modified format which is incompatible with the old one except for the rgb and alpha channels which are still properly handled.

We're now writing a converter to convert the wavefront RLA to make them compatible discreet RLA.

If any of you is interested by this little tool. Just drop in a note and we'll publish it here !

Cheers:banana:
Bolek is offline   Reply With Quote
Old 17-02-2003, 03:24 PM   #4
NitroLiq
Moderator
 
NitroLiq's Avatar
 
Join Date: Nov 2002
Location: New York
Posts: 2,133
Thanks: 0
Thanked 10 Times in 9 Posts
Default

How do you actually use that depth shader, Izzy?
__________________
"Terminat Bora Diem, Terminal Auctor opus."
NitroLiq is offline   Reply With Quote
Old 17-02-2003, 06:54 PM   #5
ragecgi
Super Moderator
 
ragecgi's Avatar
 
Join Date: Sep 2002
Location: Minnesota, USA
Posts: 3,709
Thanks: 0
Thanked 13 Times in 12 Posts
Default

NITRO > Just select all of your "in-camera" objects, apply the shader like any other, and render
Pretty simple.
I thought it was going to be confising as well when I first tried it, but it wasn't

BOLEK> NO SHIT! That's cool about the RLA Z ! I didn't know that! ....too bad I only use Maya rla's...

hehe... I know this is going to sound bad but...

I'm REALLY interested in your new TOOL man! hehe...

seriously tho, lemme know when you get it done!
__________________
Israel "Izzy" Long
Motion and Title Design for Broadcast-Film-DS
izzylong.com
ragecgi is offline   Reply With Quote
Old 18-02-2003, 09:07 AM   #6
Bolek
Subscriber
 
Bolek's Avatar
 
Join Date: Jan 2003
Posts: 8
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Sure ! I'll let you know as soon as we're done with it. It should be finished today. I just hope it'll be functionnal because we don't have the file specs for Discreet's RLA. I'll let you know anyway.
Bolek is offline   Reply With Quote
Old 18-02-2003, 02:18 PM   #7
iron_tick
Subscriber
 
iron_tick's Avatar
 
Join Date: Sep 2002
Location: Chicagoland USA
Posts: 719
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Hey Rage, you got a tutorial on compositing around here somewhere? I need some help. i got After Effects M4.0 Premiere and will soon have Ultimatte.
__________________
<html><font size=2>
<font color="blue">
And after calming me down with some orange slices and some fetal spooning,
E.T. revealed to me his singular purpose.

--TOOL, 10,000 Days---

</font></pre>
</html>
iron_tick is offline   Reply With Quote
Old 18-02-2003, 04:20 PM   #8
ragecgi
Super Moderator
 
ragecgi's Avatar
 
Join Date: Sep 2002
Location: Minnesota, USA
Posts: 3,709
Thanks: 0
Thanked 13 Times in 12 Posts
Default

Yeah, it's in the free section I believe, but it's geared more towards theory, and beginners tho...

When the S3DW 2d sites start showing up, I'll be wanting to put a LOT more actual compositing tutorials there....If Kev lets me
__________________
Israel "Izzy" Long
Motion and Title Design for Broadcast-Film-DS
izzylong.com
ragecgi is offline   Reply With Quote
Old 19-02-2003, 05:40 PM   #9
Bolek
Subscriber
 
Bolek's Avatar
 
Join Date: Jan 2003
Posts: 8
Thanks: 0
Thanked 0 Times in 0 Posts
Default



Howdy people !

Be happy ! We got the tool working (thanks to one of our coders Ben Campbell). We can convert 1991 Alias Wavefront RLA files to Discreet compatible RLA ! It's just an ugly command line tool but it's not a lot to pay ! I gives you access to all these nice 3d channels functions available in After Effects !!

Hey Rage, if you want we can give have it publish on the board... Under the plugins or a sub tools section.

Cheers !
Bolek is offline   Reply With Quote
Old 19-02-2003, 05:51 PM   #10
NitroLiq
Moderator
 
NitroLiq's Avatar
 
Join Date: Nov 2002
Location: New York
Posts: 2,133
Thanks: 0
Thanked 10 Times in 9 Posts
Default

Awesome, Bol! Man, I'd love to see a small layman's example on how you're using RLA files with channel functions in After Effects. Compositing is so intriguing.
__________________
"Terminat Bora Diem, Terminal Auctor opus."
NitroLiq is offline   Reply With Quote
Old 19-02-2003, 05:59 PM   #11
Bolek
Subscriber
 
Bolek's Avatar
 
Join Date: Jan 2003
Posts: 8
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Sure !

As soon as I'm finished with the current project, I'll spend a little bit of time laying out a small tutorial explaining the functionalities derivated from z-depth manipulation in After Effects or any other
compositing package.

Actually, having a proper RPF directly out of maya renderer would be awesome. I hope we could have something similar to the gbuffer from 3ds max RLA.

C ya.

I'll keep you updated.
Bolek is offline   Reply With Quote
Old 19-02-2003, 10:56 PM   #12
ragecgi
Super Moderator
 
ragecgi's Avatar
 
Join Date: Sep 2002
Location: Minnesota, USA
Posts: 3,709
Thanks: 0
Thanked 13 Times in 12 Posts
Default

DUDE! that tut, and a download would be GREAT MAN!

Thanks!

Can't wait!
__________________
Israel "Izzy" Long
Motion and Title Design for Broadcast-Film-DS
izzylong.com
ragecgi is offline   Reply With Quote

A little bit about who we are
Links you might find useful
Catch up with SimplyMaya
SimplyMaya specialises in Maya tutorials. We offer over 1,000 individual Maya training videos, ranging from basic Maya tutorials through to intermediate Maya tutorials. Our tutorials are created by instructors with industry experience and are designed to get you up and running in Maya quickly without making it seem like hard work.

Copyright © 1999-2015 SimplyMaya - vBulletin® Copyright © 2000-2015, Jelsoft Enterprises Ltd.