2 tests

Dune · January 17, 2014, 02:29:35 AM

I was talking to Bob about waterfalls, and thought it would be possible to use the cloud as a 'particle system', so I made some masks (one white triangle image map in PS, projected by camera, one simple shape), a small particle, but dense cloud, and a waterfall. With some more thought this can work quite well, I suppose.

The other one is another cave test.

kaedorg · January 17, 2014, 02:46:21 AM

Very good tests indeed.

On 1st i would put foam to make a transition betwenn waterfall and quiet river

On 2nd Smoke column can't be straight up if the train is moving.
Cave is really nice

Dune · January 17, 2014, 02:55:21 AM

The first one was just a first rude test, I'm working on it right now to get it better. Indeed, making foam on lower end.

I know how to bend the smoke, and I might/should have done that, but let's say the loc is standing still here

kaedorg · January 17, 2014, 03:21:22 AM

I had a look at Cave Bridge tgd file that Mike shared with us and
it seems that to connect the 2 renders is difficult (i mean for colour shaders).
I think a single colour could be betterfor a cave, (simulating rock and darkness).
Maybe someone found a way to connect them properly

Dune · January 17, 2014, 03:28:01 AM

I don't quite get what you mean, connecting 2 renders? I used a combination of reddish rock and algae gree, and patches of wetness (refl) in my soils.

kaedorg · January 17, 2014, 03:33:32 AM

In mike tgd he uses 2 SSS and they connect in the middle of the canyon.
But if you apply a colour shader, it appears that it is not continuous, you see like a cut line.

But maybe you use a different technic for your cave.

Dune · January 17, 2014, 03:36:48 AM

I haven't looked at his file, but I guess if you put the colors last, it needn't have a cut line. I used a VDisp map to get this cave, in fact the same as an earlier big cave, but now reduced to 15m across or so.

mhaze · January 17, 2014, 05:20:51 AM

If you add further displacements to my file the line will disappear.

Nice work Dune, playing with waterfalls myself at the moment planning to add clouds in a similar way but haven't got to it yet.

kaedorg · January 17, 2014, 05:34:53 AM

Thanks for the info Mick, i'll try that

mhaze · January 17, 2014, 08:14:28 AM

Dune

How would you go about bending a column of cloud?

Mick

Dune · January 17, 2014, 09:13:17 AM

Using a distribution shader (not final position!), a vector displacement and a warp shader. I've just bent my splatter that way.

A triangle of the water plane hasn't rendered, hmm.

kaedorg · January 17, 2014, 09:23:57 AM

very nice but dangerous place to stay for the reindeer

mhaze · January 17, 2014, 09:25:55 AM

Cheers Dune I'll work on that. Nice rocks btw!

Dune · January 17, 2014, 09:36:10 AM

How would any of you go about making cloud quite dark in shadow and light where sun hits? I can't get the cloud dark in my shadows, though I'm still working on it.

DannyG · January 17, 2014, 10:47:18 AM

Looks damn good there Ulco