gradient option in constant volumetric object
Posted: Tue Dec 17, 2013 12:20 am
To be able to simulate fog near ground etc. without using particles
Maxwell Render | Official public forum
The official Maxwell Render public forum. A place to share your latest projects and be inspired by others, or get help and feedback from the Maxwell community
https://forum.maxwellrender.com/
gradient option in constant volumetric object
Page 1 of 2
Re: gradient option in constant volumetric object
Posted: Tue Dec 17, 2013 12:53 am
Use the 3D Noise.
Re: gradient option in constant volumetric object
Posted: Tue Dec 17, 2013 1:18 am
add gradient mask to the material and apply it to the volumetric
Re: gradient option in constant volumetric object
Posted: Tue Dec 17, 2013 1:34 pm
Nice one seghier!
Re: gradient option in constant volumetric object
Posted: Tue Dec 17, 2013 1:48 pm
tom wrote:Nice one seghier!
Re: gradient option in constant volumetric object
Posted: Tue Dec 17, 2013 3:04 pm
wow thank you!
Re: gradient option in constant volumetric object
Posted: Wed Dec 18, 2013 7:11 am
I have a super old-school solution we used to do. I'm not seriously suggesting it for you, but you might find it amusing.AlexP wrote:To be able to simulate fog near ground etc. without using particles
It involves z-depth rendering the scene twice, once with a hard plane at the top of your intended fog layer height, and once without the plane. Then if you subtract one render from the other you get the distance at each pixel that a ray would traverse within the fog. Use that image to color the scene.
Like this:
http://www.digitalartform.com/archives/ ... ple_v.html
Re: gradient option in constant volumetric object
Posted: Wed Dec 18, 2013 3:16 pm
Super-duper 90s style!
I was doing mist with gradient on exposure layer mask with zbuffer in 32bit with photoshop. But all in all it was not-so-real
I was doing mist with gradient on exposure layer mask with zbuffer in 32bit with photoshop. But all in all it was not-so-real
Re: gradient option in constant volumetric object
Posted: Wed Dec 18, 2013 4:33 pm
CG in the 80s...I'm not worthy.jfrancis wrote: I'm not sure who invented the idea, but we used to do it this way back in the Eighties.
Re: gradient option in constant volumetric object
Posted: Thu Dec 19, 2013 8:09 am
Ingenuity is to be admired, great stuff!
Re: gradient option in constant volumetric object
Posted: Thu Dec 19, 2013 8:29 am
Re: gradient option in constant volumetric object
Posted: Fri Dec 20, 2013 3:16 pm
could you please explain this for dummies ?
when using a material with gradiant alpha for the volumetric object , my maxwellrender crashes every time....
thanks, i would love to make stylish fog on the ground, too
when using a material with gradiant alpha for the volumetric object , my maxwellrender crashes every time....
thanks, i would love to make stylish fog on the ground, too
Re: gradient option in constant volumetric object
Posted: Fri Dec 20, 2013 3:20 pm
you must add uv set to the volumetric modify the settings and remember them because when you close studio the parameters of volumetric uv resetedmojo wrote:could you please explain this for dummies ?
when using a material with gradiant alpha for the volumetric object , my maxwellrender crashes every time....
thanks, i would love to make stylish fog on the ground, too
Re: gradient option in constant volumetric object
Posted: Fri Dec 20, 2013 4:03 pm
thanks, finally i got it
Re: gradient option in constant volumetric object
Posted: Sat Oct 04, 2014 9:13 pm
@seghier
I think transparency mapping material (or just setting transparency in material) works really weird, gradient mapping causes strange stripes on volumetric object and transparency alone causes volume to look flat - just set transparency to 10% and see how depth looks like so it's really, really bad way to do it. If I have spare time I will show examples.
So my wish for map in density option is still there.
I think transparency mapping material (or just setting transparency in material) works really weird, gradient mapping causes strange stripes on volumetric object and transparency alone causes volume to look flat - just set transparency to 10% and see how depth looks like so it's really, really bad way to do it. If I have spare time I will show examples.
So my wish for map in density option is still there.