Jump to content
OskarSwierad

Snow terrain (mantra shading and render)

Recommended Posts

Hi,

 

Maybe you stumbled upon my video on facebook Houdini Artists. Still, I cross-post because I'd like to get your critique - which is something hard to get on facebook!

I'm working on a snow-covered terrain shading and rendering in Mantra. The geometry was sculpted by another artist but I added some details with displacements. I want to achieve a look of smooth, almost untouched snow covering rocky highlands (not Arctic glaciers). What can I improve?

 

~20 min per frame at 720p on Intel i7-3770

 

Still frame:

terrainRender_v67_0180.jpg

For comparison, original terrain model (plain diffuse material):

terrainRender_v67_0180_lambert_nodisp.jp

Edited by OskarSwierad
  • Like 2

Share this post


Link to post
Share on other sites

That's really cool! For my money, the shadows should have more blue, there should be some sharper lines and cusps, the snow is a little too glittery, and the white 3d particles resting on top look like white 3d particles resting on top.

594827101-sunshine-over-snow-drift-getty

  • Like 1

Share this post


Link to post
Share on other sites

Thanks. I agree with all of that :)

As for the blue color, you posted a very nice reference. Maybe my sky is too desaturated (though I intentionally wanted to avoid 'polarizing filter' look).

Edited by OskarSwierad

Share this post


Link to post
Share on other sites

Nice work!  

 

As a critique it's simply a boring scene, where as that photo posted above is interesting; sun flare, rock, deeper blue polarised sky.

  • Like 1

Share this post


Link to post
Share on other sites

Thank you both.

 

I just watched Outerra's FMX slides on procedural terrain with interesting features - not just generic. Many similar problems which I encountered were approached in clever, simple ways.

For example:

- they add horizontal displacements after the typical height noise

- slope calculations drive many things: random pebbles placement, more or less random disp, ...

- mountain peaks are extra-sharpened

I recommend reading it if you're interested in the topic - http://forum.outerra.com/FMX/presentation/

Share this post


Link to post
Share on other sites
On 2016/2/15 at 9:35 PM, OskarSwierad said:

Hi,

 

Maybe you stumbled upon my video on facebook Houdini Artists. Still, I cross-post because I'd like to get your critique - which is something hard to get on facebook!

I'm working on a snow-covered terrain shading and rendering in Mantra. The geometry was sculpted by another artist but I added some details with displacements. I want to achieve a look of smooth, almost untouched snow covering rocky highlands (not Arctic glaciers). What can I improve?

 

 

 

~20 min per frame at 720p on Intel i7-3770

 

Still frame:

terrainRender_v67_0180.jpg

For comparison, original terrain model (plain diffuse material):

terrainRender_v67_0180_lambert_nodisp.jp

very cool!  How is this done? Can you share it? Or file

Share this post


Link to post
Share on other sites

20 mins per frame? in mantra? or red shift?  nah, thats insane!!! not worth it,  i really think that sesi should work more on the shaders department,  subsurface and indirect  lighting needs to be faster and cleaner,   even with the clean sampling workflows you shouldnt  end with a 20 min render...   

Edited by dyei nightmare

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×