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Distinguished Contributor
turner006
Posts: 121
Registered: ‎01-19-2011

Particle/Material Help

61 Views, 65 Replies
04-19-2012 03:55 AM
Hello,

I was wondering if someone could help me with a problem I'm having. I have particles that I want to be smoke, but the material I'm using is just awful. It renders as squares the majority of the time and the colour is off as well. If someone could help me get the particles to render a nice smoke like shape (not that I know what type of shape that is!). I would like them to start of light greyish, then go to dark grey and then black over their life but because I have particles spawning and dying all at seperate times, I'd be happy if they can just stay a darkish grey colour. I have a pretty tight deadline for this so any help would be much appreciated and the quicker the better! I've attached a 2010, 2011 and 2012 version of my file so feel free to open it up and have a look. Just a heads up though, there is a lot of particles in the file so performance might be a bit of an issue.

Thanks,

Jack

pre_rendered_scene2010.zip

Jack Turner
3DS Max 2012
Mudbox 2012
Windows 7 Ultimate 64 Bit
AMD Phenom 9350e Quad-Core Processor 2.0GHz
NVIDIA GeForce 6150SE
4 GB RAM
Please use plain text.
Distinguished Contributor
krueger_1
Posts: 1,732
Registered: ‎07-23-2008

Re: Particle/Material Help

04-19-2012 09:08 AM in reply to: turner006
Instead of doing this in your file, I just made a basic example in a clean scene. You can see how I nested a few noise maps into the particle age map slots for the color and opacity.

But for the particle age map to work, it needs a lifespan of the particles. This means using a delete op with a specified particle age. Using a collision or age test wired to a delete op won't work. So you would have to re-configure your pflow setup to include the necessary delete ops.

On a side note, you might want to get into the habit of organizing your particle view to make it easier to read. You can use the same delete event for every collision for instance.

smoke_mtl__max_2009.zip

3ds Max 2009 SP1, 2010 SP1
Maya 2012
Windows 7 Professional 64-bit
Dual Intel Xeon E5520, 6 GB Ram
NVIDIA GeForce GTX 460 OC
Please use plain text.
Distinguished Contributor
turner006
Posts: 121
Registered: ‎01-19-2011

Re: Particle/Material Help

04-20-2012 04:34 AM in reply to: turner006
That smoke material is really nice! But for some reason it doesn't work in my scene. I've attached a picture of the render. I'm guessing it's some values I need to tweak but I have no idea which ones. Do you have any ideas? Once the material is working I'm going to start my Pflow from scratch again because it's a bit messy an not everything is needed. I'll also take note of making my pflow diagrams a little easier on the eye.

Thanks for the help mate,

Jack

Jack Turner
3DS Max 2012
Mudbox 2012
Windows 7 Ultimate 64 Bit
AMD Phenom 9350e Quad-Core Processor 2.0GHz
NVIDIA GeForce 6150SE
4 GB RAM
Please use plain text.
Distinguished Contributor
krueger_1
Posts: 1,732
Registered: ‎07-23-2008

Re: Particle/Material Help

04-20-2012 02:16 PM in reply to: turner006
Well if you're using particle age maps, with the setup in the file above they won't work because there's no lifespan as I mentioned above. Try adding a delete op set to particle age under the render op, see if that helps.
3ds Max 2009 SP1, 2010 SP1
Maya 2012
Windows 7 Professional 64-bit
Dual Intel Xeon E5520, 6 GB Ram
NVIDIA GeForce GTX 460 OC
Please use plain text.
Distinguished Contributor
turner006
Posts: 121
Registered: ‎01-19-2011

Re: Particle/Material Help

04-23-2012 04:25 AM in reply to: turner006
I added a delete op like you said and gave it a lifespan with a bit of variation on it to see if that helps and it doesn't. I got most my particles to render but they were rendering as squares where as in your file they looked really nice. I don't understand what I'm doing wrong...again! I tried rebuilding my pflow from scratch and that didn't help either, sometimes it didn't even render anything.

I have 1 week to sort this out as I still have all of this to do in UDK as well and write a 10,000 dissertation so any help would be much appreciated.

Cheers,

Jack
Jack Turner
3DS Max 2012
Mudbox 2012
Windows 7 Ultimate 64 Bit
AMD Phenom 9350e Quad-Core Processor 2.0GHz
NVIDIA GeForce 6150SE
4 GB RAM
Please use plain text.
Distinguished Contributor
turner006
Posts: 121
Registered: ‎01-19-2011

Re: Particle/Material Help

04-23-2012 04:30 AM in reply to: turner006
Here's a printscreen of the pflow I built from scratch with the render of it. The pflow is nowhere near finished but I just thought I'd show you it now.

Jack Turner
3DS Max 2012
Mudbox 2012
Windows 7 Ultimate 64 Bit
AMD Phenom 9350e Quad-Core Processor 2.0GHz
NVIDIA GeForce 6150SE
4 GB RAM
Please use plain text.
Distinguished Contributor
turner006
Posts: 121
Registered: ‎01-19-2011

Re: Particle/Material Help

04-23-2012 04:46 AM in reply to: turner006
Here's how it looks with my old pflow with some delete ops put in as well.

Jack Turner
3DS Max 2012
Mudbox 2012
Windows 7 Ultimate 64 Bit
AMD Phenom 9350e Quad-Core Processor 2.0GHz
NVIDIA GeForce 6150SE
4 GB RAM
Please use plain text.
Distinguished Contributor
krueger_1
Posts: 1,732
Registered: ‎07-23-2008

Re: Particle/Material Help

04-23-2012 10:52 AM in reply to: turner006
You need material dynamic ops instead of material static. Material static won't update along with the particle age. But they shouldn't render as squares, can you post your material settings?
3ds Max 2009 SP1, 2010 SP1
Maya 2012
Windows 7 Professional 64-bit
Dual Intel Xeon E5520, 6 GB Ram
NVIDIA GeForce GTX 460 OC
Please use plain text.
Distinguished Contributor
turner006
Posts: 121
Registered: ‎01-19-2011

Re: Particle/Material Help

04-24-2012 01:47 AM in reply to: turner006
I changed the material op to material dynamic and the colour is a bit better but it's still rendering as little squares. I copied your material exactly so I don't understand what's happening.

Jack Turner
3DS Max 2012
Mudbox 2012
Windows 7 Ultimate 64 Bit
AMD Phenom 9350e Quad-Core Processor 2.0GHz
NVIDIA GeForce 6150SE
4 GB RAM
Please use plain text.
Distinguished Contributor
krueger_1
Posts: 1,732
Registered: ‎07-23-2008

Re: Particle/Material Help

04-24-2012 09:40 AM in reply to: turner006
If you can upload the new scene (saved for Max 2010) I could see where the problem is easier. It's hard to tell without going through your material.
3ds Max 2009 SP1, 2010 SP1
Maya 2012
Windows 7 Professional 64-bit
Dual Intel Xeon E5520, 6 GB Ram
NVIDIA GeForce GTX 460 OC
Please use plain text.