Snow Shader

[mustan9]

Hi guys,

I'm looking for a good snow shader or material for MR. Should have some subsurface effects (but not required), and some glitter as well.

Anyone know of any tutorials or material files?

Thanks,

[mustan9]

Hi again,

I also need something to do frost. The kind of frost that covers objects slightly but you can still see the objects under it.

[hot chip]

hi

on this thread is a ice shader. this procceded can you for snow: http://forum.german-mentalray-wiki.info/viewtopic.php?t=41

on this picture can you see the different shaders ice or snow on the roof, but the same procceded of the shaders.:
http://forum.german-mentalray-wiki.info/album_page.php?pic_id=21

[mustan9]

thanks!

That should help.

[JeffPatton]

Hi Mathew,

I've used the SSS fast skin shader before for some snow. Here's an example where I mixed in some sparkles using the flakes option on the carpaint shader.

(right click, save as)
http://jeffpatton.net/Temp/Mray_snow_JP.mov

If it looks like something you'd be interested in using or exploring, let me know.

[mustan9]

Thanks Jeff,

That looks very nice. Can you share the scene file?

[JeffPatton]

Are you already familiar with the process of using lightmaps with the SSS fast skin shader? If not, I'll need to write up a quick blurb about that.

[mustan9]

I know that lightmaps are used to quickly calculate the sub surface scattering, but it's handled automatically in Max.

Are you doing something special with the lightmaps?

[JeffPatton]

In order to mix the SSS material with another material, you have to make some quick edits to the subsurface.mi file in order to use the lightmap option.

I have a thread at CGtalk on using the SSS material in a blend map by using lightmaps, as such, I didn't know if you were already familiar with the process, if so I will just send you the file. If not, I'll need to pull some info together on the edits & lightmap process.

[mustan9]

Just send me the Max file, and the .mi file. I'll have no problem figuring it out.

I think I know what your talking about.

[JeffPatton]

My file:
http://jeffpatton.net/Temp/MR_snow.zip

I can't provide my subsurface.mi file. Just disable the hidden tags on the lightmap options of your subsurface.mi file.

[Astrit]

hello
If this can help you just say and I will send to you
Its all SSS shader (ala Jeff Patton style)

www.astrit3D-studio.com