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Particle Effects 1

CA3D-480 Particle Effects 1

The other make up class...

Thu, 08/09/2007 - 2:32pm — George Gundorov

Any word on the last make up class? Hope we get a bit of an advance notice.

 

 

George 

JellO_Deformer

Tue, 07/31/2007 - 11:54pm — asopand

I'm making a "Jiggle Deformer" on a cube (for my JellO), but does a deformer have a "Make Collide" option like in the Dynamics? I was going to have my JellO (blobby surface) walking around. Will it work with the Jiggle deformer on a cube that's emitting blobby surface?

AvalancheMountainRange.ma _ Source of second and third snow balls?

Sun, 07/29/2007 - 6:51pm — asopand

Where does the second (inst) and the third snow balls come from, on the AvalancheMountainRange example on the StudentPkUp?

 

I'm not seeing any expressions to emit particles to those buckets.  

applying color maps to instanced objects

Fri, 07/27/2007 - 10:23pm — George Gundorov

  Hi.  I'm trying to apply my in-maya shaders to the instanced rocks I've made.  I already set the initial state to the rocks and modified my path to not intersect any of them.

 

Cache Question

Fri, 07/20/2007 - 11:13pm — George Gundorov

  We never got to talk about properly caching the scene for correct motion blur, etc.  Can you please sum it up for us?  I'm still having those wierd disappearing particles in my scene, and I want to make sure I do it right.

Any idea what this means?

Fri, 07/20/2007 - 10:00pm — George Gundorov

Warning: file: E:/Applications/Programs/Maya 8.5/scripts/AETemplates/AEparticleCollisionNew.mel line 107: Converting string "polySurfaceShape3" to an int value of 0. //

 

This was in my script editor when I booted up my scene.  Any clue what that is any1?

DVD eval question

Fri, 07/20/2007 - 11:27am — George Gundorov

Hello. I got a hold of a Gnomon DVD that concentrates on outerspace environments. I haven't start it yet, but in the read me it says that it is a 5.5Hr DVD. My question was if, since it's so big, I can count this as 2 or 3 evals? I would still write a page for each one of the 2 hr segments with images and all.

Avalanche Assignment pointers

Wed, 07/11/2007 - 10:33am — Dan Shumaker

 

CLOUDS ARE BLOBBIES TOO!! 

Turn up the diffuse coeficient on the snowCloud material (to around 1). This makes it more solid and you won't need as many particles to make a volumunous avalanche.  Also change your thresh hold on the particle bucket to be around 1.5 and the surface shading to be around 1.  This will make for very nice solid looking snow. 

CA3D-480 Particle Effects MAKE UP CLASSES POLLS!

Tue, 07/03/2007 - 6:43pm — Dan Shumaker

Please vote on each of the TWO polls that are newly created.

 

1. First Make up class.

2. Second Make up class.

 

CA3D-480: What is the second make class day and time you would like?

Tue, 07/03/2007 - 6:39pm — Dan Shumaker
July 23, 3:30pm - 6:20pm
22% (2 votes)
July 24, 3:30pm - 6:20pm
22% (2 votes)
July 26, 3:30pm - 6:20pm
0% (0 votes)
July 27, 3:30pm - 6:20pm
11% (1 vote)
July 30, 3:30pm - 6:20pm
0% (0 votes)
July 31, 3:30pm - 6:20pm
33% (3 votes)
August 2, 3:30pm - 6:20pm
11% (1 vote)
August 3, 3:30pm - 6:20pm
0% (0 votes)
Total votes: 9

CA3D-480: What make is the first make up day would you like?

Tue, 07/03/2007 - 6:34pm — Dan Shumaker
July 9, 3:30pm - 6:20pm
20% (2 votes)
July 10, 3:30pm - 6:20pm
40% (4 votes)
July 12, 3:30pm - 6:20pm
0% (0 votes)
July 13, 3:30pm - 6:20pm
10% (1 vote)
July 16, 3:30pm - 6:20pm
10% (1 vote)
July 17, 3:30pm - 6:20pm
0% (0 votes)
July 19, 3:30pm - 6:20pm
0% (0 votes)
July 20, 3:30pm - 6:20pm
20% (2 votes)
Total votes: 10

Calculating Total Particles.

Mon, 07/02/2007 - 5:50pm — Dan Shumaker

To calculate the maximum number of particles that your scene had, like we did in class here is what you do.

 

In the expression editor, set the Select Filter to "by Script Node name" and type in "particleCountNode" in the Script Node name entry box. Then enter this code in the Script section:

vase assignment question

Wed, 06/27/2007 - 2:54pm — George Gundorov

Hi, I'm having problems displaying the ramp on my vase. Can someone tell me how to do this plz? I couldn't keep up with it in class and didn't write it down, now I'm stuck.

 

Projects

Mon, 06/25/2007 - 4:41pm — Dan Shumaker

Cumulatively these assignments are worth 65% of your grade.

Choose any THREE of the assignments listed below.

Homework

Mon, 06/25/2007 - 4:36pm — Dan Shumaker

All of the following assignments are cumulatively worth 25% of your grade.

2. Galaxy - Due 6/25

Mon, 06/25/2007 - 11:54am — Dan Shumaker

 

Using a turntable camera as explained in class render out a galaxy with a newton field at the center of one particle bucket and a vortex at the center of another particle bucket.

 

BATCH RENDERING

Thu, 06/21/2007 - 2:44pm — Dan Shumaker

Tail Program

 

See the above link description for a discussion about render logs and the tail program.

 

1. Grades & Books

Thu, 06/21/2007 - 11:49am — Dan Shumaker

Grading:

  • 5% Attendance (20 points off for absence, 10 points off for late)
  • 5% Participation
  • 25% Homework
  • 65% Projects

Sign up at snapgrades.net now.

Sandman - Goals + VF_400 frames

Wed, 06/20/2007 - 12:49pm — Dan Shumaker

Sandman: using goals and software and hardware rendered particles and an animated character render out a sandman.

 

Use real video footage as background.

Avalanche - Rigid Bodies + Instancing

Tue, 06/19/2007 - 4:20pm — Dan Shumaker

Do an avalanche.

 

You can record mountain footage yourself or  capture it from some National Geographic documentary of some sort.  (See the BBC series entitled "Planet Earth").

Pod Race - Sprites + Rigid Bodies 500 frames

Mon, 06/18/2007 - 9:55pm — Dan Shumaker

Using the methods in the book do a pod-race scene and crash.

 

Page 384 in the Special Effects Handbook.

 

Page 247 in The Special Effects Handbook.

 

Scene length of at least 500 frames.

Flubber - Goals + Blobbies + constrained bubbles + VF_400frames

Mon, 06/18/2007 - 9:52pm — Dan Shumaker

Using goals and blobbies and some animated creature - render out a flubber like vfx shot.

 

You can use springs, pins and nails to render out bubbles that are inside the flubber creature. You can use other techniques as well.  

Perfect Storm - turbulence crest mist + splash emitters

Mon, 06/18/2007 - 6:42pm — Dan Shumaker

Do shot from perfect storm.

 

http://www.howstuffworks.com/perfect-storm.htm

 

Your Name On Fire

Mon, 06/18/2007 - 5:12pm — Dan Shumaker

<!--[endif]-->Your Name on Fire:

3. Vanishing Object - Due 6/28

Mon, 06/18/2007 - 5:00pm — Dan Shumaker

Vanishing Object:
Make an object disappear with an animated texture mapped to the transparency channel and an animated texture rate and color like the gnomon tutorial in our class pickup directory:

1. 12 DVD Evaluations - One Due each class session

Fri, 06/15/2007 - 2:10pm — Dan Shumaker

Evaluate twelve of the following Gnomon DVDs. Write a 200 word review of the following Training DVDs. Render out two frames illustrating what you learned by using the technique that the disk went over. You can evaluate these in any order. No credit for images that are not your own. The library has all of these for you to check out and watch.

Cars - Weather Season

Thu, 06/14/2007 - 5:43pm — Dan Shumaker

Cars Project:

 

Render out a car of your choosing that just runs perpendicular to the camera for the duration of the assignment. Using the software renderer or mental ray render out the car on it’s own layer.

Midterm

Thu, 06/14/2007 - 2:50pm — Dan Shumaker

Particle Holdouts

Mon, 05/28/2007 - 12:05pm — Dan Shumaker

Major problem in compositing with particles is that they can't take a holdout material assignment.

 

Ie. Software particles can not be held out from hardware renders and vice verse.

Nor, software from software or hardware from hardware.

 

Must test this. best you can do is assign black material and use a luminance matte in the comp. Or. assign instanced geometry to particles that same shape as particles ... bobbies with Matte Opacity -> Solid Matte = 0

Final Notes

Mon, 05/14/2007 - 12:29pm — Dan Shumaker

Final Project Issues:

  • Extreme render times: Fluids 1:20 (hours) per frame.
  • Memory leak: 17 frame max. then restart.
  • Raytracing object shadows (adding dirt,not enough samples).
  • Can't get good color in particles (mostly white).
  • Shading fluid falloff--black dots with circles.
  • Designing/Planning Hold out mattes Compositing:
  • Matchmove mismatch.
  • Rigid Body: Emission on Collision: couldn't bake rigid bodies.
  • Dynamics: Maya File corruption. Maya Bugs:
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