Comptex-method is using VrayCompTex map in the environment slot.
This is what I got after a little bit of fiddling:
Quick breakdown:
- add vray sky-sun
- copy sky-map from environmentslot in the mat-editor
- insert VrayCompTex and “keep old materal as sub-material”
- put a sky in the second slot
- operator: “multiply”
However, I can’t get this working properly with noon-skies.
This has probably something to do with the HDR vraysky X LDR 2.2 image of sky..
Nice results! I was waiting till monday so I could upload the .mat file,
But yeah, it does depend an awful lot on the source you use for the clouds. Its not a catch all technique, but it adds a lot and works really wel most of the time. Ive not had great results using maps with an original sun in them either - ones with cloud cover or the sun edited out work best.
If you throw the .jpg of the sky into a colourcorrect plugin, you can then go nuts with that and get it to balance a lot better. Ive used it with scenes that had sun/sky values of 1 rendered with the physical camera, and just put the brightness & contrast of the map up to around 3000 or so.
i was just thinking about this as i was walking outside today. can an overcast / cloudy day be done with this method? can the clouds cast a little shadow on the ground?
…but the question would be, would arch vis ppl want to have their work shown in a ‘overcast / cloudy day’ tho??..
You can probably do this with my file easily, I think; I made the clouds not “Visible to GI”, but if you turn this on, and make them more dense, you should get something like an overcast sky.
It actually also works for cumulus stuff to make it less flat and real 3d. I am sure you could easily use it on some particle setup. Here I tried to mock up a pseudo-volumetric smoke tower/volcano/whatever …
hey dmerc - those look great!
i was having a quick play around with this yesterday however i was unable to get the sun to look like the first examples where it has the ‘lens flare’ sort of look to it - i was just getting a round sun in the sky.
is this something to do with the turbidity or ozone setting in vraysky or something? (still not quite sure what those do…)
btw i was using the vraycomptex method if that makes a difference.
I used a very subtle glow from within the max atmospherics. Dont need much at all - just a bit to smooth it out.
I’ll upload the scene later when ive got time.
I have had a bit of playing around with procedurals and the VRayPlane, came out with something I have never been able to do successfully in VIZ. This is a full day animation with animated clouds. It could use some refinement, but I thought the results were pretty nice nonetheless: http://rapidshare.com/files/53786044/C3.rar.html
Here is a higher res shot of the procedural clouds:
@ soreal: No comptex used, actually pretty simple setup: Vray-2sided material with one turbulence-noise as opacity and two different sized noise as a negative bump. Both maps slowly animated. The whole thing applied on a Vray plane which glides along. That’s it. No lens flare @Stephan: would love to, but still don’t know how to “backsave”, the old Max-Issue, sorry … Could I do it
been getting some quite nice results on this but one problem - when the sun is visible in the frame the render seems to hang for a long time on the sun…
Dmerc
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