Indigo Renderer Forum

Since I have implemented view-dependent sub-d + displacement, I decided it's time for another atmospheric scattering test, this time with terrain

So in this scene there's a gigantic Earth-sized sphere (radius 6378135 m).
There's an atmosphere sphere around that, with radius 6428135, i.e. earth radius + 50 km.
Then there's a 200km*200km quad, which is subdivided and displaced using a FBM procedural map.

The lighting is provided solely by the sun, using the spectral power distribution as measured at the edge of the atmosphere.

All sky lighting is due to Rayleigh scattering (simulates scattering off air molecules). Water aerosol scattering was disabled for this test.

I've attached the scene file, it should work with Indigo v1.1.1. (except you will get some water scattering)

If anyone has a spare supercomputer, I'd like to see what it looks like without noise

EDIT: if you want to run this scene, make sure you set bidirectional = false

wow.... nice....

....



edit: tried to render, "found unexpected element 'center' in 'athmosphere'."
edit2: after removing all 'center' elements, indigo just hangs
edit3: disabled bidir, works. looks different tho

ah damn, that's right, I added some code to set the density center of the atmosphere medium. So it won't work correctly with v1.1.1, unless you move everything up by the Earth's radius

Gives me the same problem too

Looking good boss, even if we can't render it for you

Update at ~ 3 hours

Damn, that looks cool!

Very good looking. Now we can render broad vistas without need for postprod: (I tried it here and had to do all the volumetric with Blender Internal and Photoshop)

That's assuming it's not too slow. Judging from your render time, there's a bit of a speed hit, though, isn't there? I assumed you cooked this one on your quad, right?

There's a massive speed hit relative to the usual sky model.
This one is using 3 threads on the quad

Ouch.

(then again, postprod atmoshperes are a lot of work)

What about a shot of that scene where you can see the sun?

The final image.

Approved

Where are these wonderfull clouds you showed to us (2 layers please ) ? Shadows on the rock, mmh...

Those beautiful clouds with the same kind of noise in 3D ;D xD

Here, a possibility of add/substract in normal direction would be handy... At least I guess, that'd be needed for a sphere prim with disp... - That and a more general primitive model which'd allow general prims xD (Or an a bit pointless mesh generator where you as well could directly use a sphere...)


Hmmm.... with a correct displacement map, it should be possible to displace a low-poly sphere as if it was "perfect", shouldn't it?

Ah well.. Great test, seems to be alot faster now (after 9h on a single core, it already looks reasonable )

What about a marine test with that water on a certain level? (If the water is perfectly plain^^)

Ill use this