07 July 2006 | |
![]() |
|
Reworking my Reel
Steve Green
Freelance 3D Artist
United Kingdom
|
Water material
Hi,
Although this is only using SuperSpray, I've been playing with trying to get a nice water shader without use of any commercial plugins. http://www.stephendgreen.pwp.blueyo...water_spray.wmv It uses cubes spinning at high speed (a few frames for a complete spin with some variation - Brandon Davis' Intermedia Case Studie put me on that track), using object motion blur and a little of John Burnetts Motion blur render effect on top to smooth the more obvious stepping. There is a bit of the basic translucency shader to give a bit of light, and a small sample of water texture face mapped to the cubes. And very bright specular... It seems to give quite a nice look of foamy spraying water. It will be interesting to see how it works with different motion and scale. Cheers Steve |
07 July 2006 | |
![]() |
|
Lord of the Thundercats
portfolio
Ian Farnsworth
FX Artist
|
Looks great Steve, a little fast, but it looks great
![]() |
07 July 2006 | |
![]() |
|
Reworking my Reel
Steve Green
Freelance 3D Artist
United Kingdom
|
Hi,
Thanks, it should be OK - I think the fast rotation is giving the nice blobby feel without the overhead of metaparticles. Slowing down the actual motion of the particles shouldn't affect the look too much (fingers crossed). I'll try slowing it down, see if it still holds up. Cheers, Steve |
07 July 2006 | |
![]() |
|
Reworking my Reel
Steve Green
Freelance 3D Artist
United Kingdom
|
Not much slower, but more of a waterfall thing going on...
http://www.stephendgreen.pwp.blueyo...k/waterfall.wmv Still seems to work, although I'd probably add some geometry to bulk it out, and maybe some atmospherics for the really fine mist. I need to have a look at some reference footage. - Steve |
07 July 2006 | |
![]() |
|
New Member
|
I think it looks really good
![]() Out of curiosity, how many particles were required for that to look right? |
07 July 2006 | |
![]() |
|
Reworking my Reel
Steve Green
Freelance 3D Artist
United Kingdom
|
Hi,
thanks - quite a few ![]() It's a bit of a double-edged sword unfortunately, object motion blur eats up more memory. Mental Ray motion blur also seems to run out of memory sooner than IMB. Cheers Steve |
07 July 2006 | |
![]() |
|
vfx
Ronald ter Veen
Student
Netherlands
|
That looks pretty promising Steve, and especially that waterfall looks awesome. Have to find something about making the upper edge less furry, but it sure has potential
__________________
Two million years of human evolution and this is what we get... |
07 July 2006 | |
![]() |
|
Reworking my Reel
Steve Green
Freelance 3D Artist
United Kingdom
|
Hi,
thanks, yeah I need to get hold of some good nature DVDs for reference. I guess at the top it would be pretty flat unless there were some rocks to break against, maybe some just some displaced raytraced geometry for a thin curtain of water. I might give Mental Ray a try for that - I could try the scanline raytracer, but I'm not sure how much quicker MR would be. Brazil doesn't have 3D motion blur in v1, which rules out using that spinning cube trick for the particles, and VRay has problems with Pflow as well I think. Cheers Steve |
07 July 2006 | |
![]() |
|
vfx
Ronald ter Veen
Student
Netherlands
|
Vray is working on it in the new release though.
Vray:: Motion blur for PFlow systems GettyImages.com has some good material btw, check out this video. I guess it's pretty important to spawn a lot of small particles on the way to create the dust/steam or whatever that's called. And when you look at the top edge, you're not far off at all! __________________
Two million years of human evolution and this is what we get... |
07 July 2006 | |
![]() |
|
Reworking my Reel
Steve Green
Freelance 3D Artist
United Kingdom
|
Yeah, 1.5 seems to have been on the cards forever - hopefully there'll be some news at Siggraph.
I think maybe a duplicate particle system with a short lifespan and smaller particles would work for the edge. I want to have a look at getting the nice arcs of water on that stock footage. Not sure if the best way is just to ramp the birth up and down, or to use space warps. I guess it's similar to that Revenge of the Sith lava spray that was posted a while back. Cheers Steve |
07 July 2006 | |
![]() |
|
Scholar
portfolio
S B
United Kingdom
|
![]() GR8 effect there, i like experirmenting with the Particles from time to time. Must say that 2nd one makes me wanna go swimming. Sort of thing u want as a screen saver!
Like ive said in another post, theres no real water system in Max which is a shame. Im sure there could be an easy way round it other than having particles seperate from water geometry. Id like water particles that when it meets the standard geometory, it blends into it and is clever enough to calculate ripples using real time pyshics etc... I never really look into plugins too often but there must be a suitable water simulator out there someplace? ~So any info on the material u used on them particles plz? |
07 July 2006 | |
![]() |
|
Reworking my Reel
Steve Green
Freelance 3D Artist
United Kingdom
|
Hi,
thanks - I'm pretty sure there's no 'one size fits all' water solution, that's commercially available. Flowline is maybe the closest I've seen movies of, but I've no idea how it works or what the plans for it are. The existing ones tend to be geared towards larger scale, like Dreamscape with no separation of fluids, or smaller scale like Glu3D/Realflow which are not really practical for large masses of water. You just have to comp what you need really. Regarding the material, it's nothing special, just got a bit of a translucency material and a high specular. It's more the object motion blur and 1 frame spin rate on the cubes that is giving the fluffy look. Cheers Steve |
07 July 2006 | |
![]() |
|
Veteran
portfolio
h.e
3d artist
Denmark
|
Steve just wondering, you use obejct motion blur, have you tried with image mb ? just to test it ?
anyway i would like to see the difference. looking great. ![]() |
07 July 2006 | |
![]() |
|
Reworking my Reel
Steve Green
Freelance 3D Artist
United Kingdom
|
Hi,
actually I use a little IMB as a render effect on top. The problem with image motion blur, is that it's not great on extreme rotations (the cubes are spinning 360 degrees a frame), and also it smudges highlights, which is quite a drawback. However there is a render effect motion blur which John Burnett wrote (you can download it at www.maxplugins.de), which allows IMB to be added on top of Object motion blur, and I just used a tiny amount to blur the grain slightly. Cheers Steve |
07 July 2006 | |
![]() |
|
Veteran
portfolio
h.e
3d artist
Denmark
|
ok, was just wondering cause the render time of Obejct motion blur.
thx i'll look into that render effect. /cheers H.Eisner |
Thread Closed share thread |
«
Previous Thread
|
Next Thread
»
|
|
|