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- Path: sparky!uunet!noc.near.net!bigboote.WPI.EDU!wpi.WPI.EDU!eyeq
- From: eyeq@wpi.WPI.EDU (Brent Burkholder)
- Newsgroups: comp.sys.amiga.graphics
- Subject: Re: Imagine 2.0: Bad graphic quality??!
- Date: 19 Nov 1992 04:44:10 GMT
- Organization: Worcester Polytechnic Institute
- Lines: 64
- Message-ID: <1ef62qINN29v@bigboote.WPI.EDU>
- References: <Bxx4yG.463@usenet.ucs.indiana.edu>
- NNTP-Posting-Host: wpi.wpi.edu
-
- In article <Bxx4yG.463@usenet.ucs.indiana.edu> shulick@navajo.ucs.indiana.edu writes:
- >
- >Maybe i'm not doing something right w/ Imagine, but it's rendering some
- >pretty horrible-looking anims/pictures. I use 384x482 scenes, with ILBM
- >24-bit mode, aspect 12x7 (default). On one animation I did that used a
- >sandstone mountain, the sandstone kept wiggling around! That is.. the
- >pixels that composed the sandstone kept shifting around in each frame,
- >and made it look horrible. And no matter how hard I try, I can never
- >get a nice, clear picture. There's always SOME aspect that makes it
- >look like sh-t. any advice? Thanks.
- >
- >--
- >Sam Hulick | "You can't discover new oceans unless you have the
- >shulick@indiana.edu | courage to lose sight of the shore." --Anon.
- >(NeXTmail welcome) |
-
-
-
- Lesson #1) Never, EVER use the roughness attribute when making an animation.
- It isn't consisten in it's placement of the random pixels so
- every frame is different. Make a random dither pattern in DPaint
- or something and map those on as bump maps if you want it.
-
- Lesson #2) Lighting is everything. Play with different lighting setups and
- distances. 2-3 lightsources, and an ambient light of about
- 30,30,30 works well for me.
-
- Lesson #3) If you still don't get good pictures disregard #2, and experiment
- till your Amiga gives up in frustration. *grin* Also, might want
- to try different things in globals.
-
-
-
-
- While I'm at it, someone asked about a black reflection on a metal spehere.
- Some suggested that they can use an IFF of the sky (good suggestion), while
- others said to use a gradient fill IFF. Instead of option 2, it's far easier
- to set the Horizon color to a light blue, +Zenith color to a dark blue, and
- then set the number of gradients between them to 255 (I forgot the terminology
- it uses.. it's at the bottom right hand corner)
-
-
- Brent Burkholder
- eyeq@wpi.wpi.edu
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