#Moving sky
12 messages in this thread
Looking through the Autodesk showreel I have seen a great moving sky in one of
your pyramid animations, we have tried a few times to create a realistic sky
that moves within a scene using methods such as mapping it on the inside of a
dome, but these have been un-satisfactory.
Any help most appreciated.
Phil.
Phil:
>> Looking through the Autodesk showreel I have seen a great moving sky in
>> one of your pyramid animations
The quickest way to get the idea is to download Jamie Clay's sky that he
uploaded here in CI$ many moons ago. It includes the map and object toat
works wonderfully! Anyone remember what it was called?
After you see how he did it, you can easily create your own, also!
Greg Pyros
I think the file Greg was refering to is CLOUDS.ZIP it consists of a large
dome and a very nice cloud map. If you just put it over your geometry and
slowly rotate it as your animation proceeds you will get a very nice moving
cloud effect.
Dave Mennenoh
PMJI – I missed the earlier part of this but I suspect that someone needs
moving clouds. As the orginator of the CLOUDS.ZIP, I thought maybe I could
clarify a few things. First, CLOUDS.ZIP is a set a of stills of different
cloud effects created with the SMOKE IPAS. They are a study in a very
limited sense of what can be done with the smoke ipas to create moving
clouds. If one wanted to have clouds moving from left to right or vice
versa one could use a cylinder with the smoke ipas applied to the inside of
a cylinder which would then be set up to rotate slowly as I believe David
was suggesting. This however was not done for the images in CLOUDS.ZIP
because perspective and clouds moving into the horizon was the objective.
What was used was a single rectangular plane large enough to cover the sky
and angled into the horizon line. Technically one could create a cylinder
which was large enough to enclose the scene and with the base scaled
outward you would then have perspective into the horizon, and then you
could rotate the cylinder to get clouds moving from left to right. I can
see some potential problems with covering the scene, camera angle etc. but
with a little effort this too should be possible. -JE
I believe this is the file Greg was referring to. The cloud map is tileable
on the X axis and works quite well. I think it is from Jamie Clay.
_________________________________________________________
[76703,4204] Lib: 3
CLOUDS.ZIP/Bin Bytes: 485087, Count: 185, 02-Sep-92
Title : Cloud Dome
Keywords: CLOUD DOME 3DS MESH MAP 3D STUDIO
Clouds.3ds and CLDSMAP.tga
Looking for a cloud map to 'wrap' around your 3d World? Merge
CLOUD.3ds into your model and scale to fit. It's not perfect but it should
give you a decent cloud background you can fly about.
Upload courtesy Autodesk Image Development Lab
(Approximate download time at 2400 baud using CIS B: 36:00)
____________________________________________________________________________
-Ralph
Ralph:
>> I believe this is the file Greg was referring to.
Correct! That is the Jamie Clay Cloud System!
Greg Pyros
Sorry about that, I uploaded clouds.zip about two months ago and apparently
it has been replaced, mine was created with the Smoke IPAS and Gary used it
as Siggraph so I assumed it was still on the system. -JE
>> Correct! That is the Jamie Clay Cloud System!
Greg,
Yea! and the next question is… <g>
Hey Mr. Action IPAS, I once converted this cloudmap to 8 bit and slid it X
pixals per frame in ani convert and then used it as animated moving clouds
for a couple different projects. Can an IPAS be written to move the (24
bit) cloudmap background X number of pixels per frame horizontally?
Could be useful. Just a thought.
PS I'm still going through your IPAS demos to try to pick which ones to
recieve from the ADESK party raffle at Siggraph. I'm just having trouble
picking which ones (of course I want them all!). My personal thanks to you!
-Ralph
Ralph:
>> Can an IPAS be written to move the (24 bit) cloudmap background X number
>> of pixels per frame horizontally?
I could be done, but what I do is just take the cloud map, apply it to the
inside of a cylinder with a self-illuminated material, and rotate the
cylinder over the course of the animation! Quick and dirty!
>> My personal thanks to you!
Any my personal "you're welcome" back at ya!
Greg Pyros
>> … take the cloud map, apply it to the
>> inside of a cylinder with a self-illuminated material, and rotate the…
Self-Illuminated material! You may have hit upon an unrelated problem I ran
into the other day. Thanks for the tip!
-Ralph
David – the clouds that I was referring to are titled CLOUD4.ZIP,
sorry about the confusion. -JE
_______________________________________________________________________________
Fm: John Ellis 72440,3046
To: Ralph F. Frantz 71534,3133
David – the clouds that I was referring to are titled CLOUD4.ZIP, sorry about
the confusion. -JE
_______________________________________________________________________________
John,
If you are still using Tapcis remember that a (R) reply is always sent to
the From: address. A (T) will send the message to the To: address.
^^^^ ^^
BTW, I've seen your clouds. Nice effect!
-Ralph