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Conference hydra::amiga_v1

Title:AMIGA NOTES
Notice:Join us in the *NEW* conference - HYDRA::AMIGA_V2
Moderator:HYDRA::MOORE
Created:Sat Apr 26 1986
Last Modified:Wed Feb 05 1992
Last Successful Update:Fri Jun 06 1997
Number of topics:5378
Total number of notes:38326

3657.0. "Ray tracing very fast on...." by LSNCSC::BLANC (Phil Lausanne-CH SSG DTN 753-2324 9-APR-1990 08:18) Mon Apr 09 1990 09:42

Hi
I have uploaded three files to use with uray from dave Wecker
couch.dat	-data file for uray
couch.txt	-what happenned
couch.ilbm	-the result

As you will sees it has a lot of waves, 2 spheres mirrors and a few other things

Read the .txt file, you will see it has taken only.... 168 seconds to produce
the output.
Guess on which machine..............



Yes on a decstation 5000......pfeuuuuu how this system is fast..
Phil
T.RTitleUserPersonal
Name		DateLines
3657.1screamer!WHAMMY::SPODARYKBinary ThrottleMon Apr 09 1990 19:209
I just ran that ray tracing on my VAXstation 3100 and it took 
1151 seconds!  That was at about 80-90% capacity, so even if you
figure 1000 seconds min, the DECstation 5000 is still ~6 times
faster.

How fast will a 68030/68881 do it?  Maybe I'll try my '20.
Anyone have a VAX 9000? :^)

Steve
3657.2Just what I wanted - 25 Mips of powerGIDDAY::MORANI'm not bad-I'm just drawn that way!Tue Apr 10 1990 03:3411
    Pardon me for my ignorance ...
    
    But does this mean that I can create the 'raw data' on my amiga -
    upload this file to the VAX at work - ray trace the piccy using uray -
    and download the result back to my amiga ???????
    
    If so could someone be so kind to tell me what the program is called
    the creates the 'raw data' for you on the Amiga.
    
    Thanks Shaun.
3657.3LSNCSC::BLANCPhil Lausanne-CH SSG DTN 753-2324 10-APR-1990 08:37Tue Apr 10 1990 04:0516
re :.1

Has anyone any interesting .DAT files he would like to share and compare the
running times ?

re:.-1

 
>    But does this mean that I can create the 'raw data' on my amiga -
>    upload this file to the VAX at work - ray trace the piccy using uray -
>    and download the result back to my amiga ???????
    
This is it......
The "raw data" file is just a text file...look at tape::user2:[upload]couch.dat

Phil
3657.4RayTracing conferenceEXOCET::ATTWOOLthe part time NASA cleaner.Tue Apr 10 1990 04:4511
 
 Take a GIF look at sievax""::disk$user:[attwool.qrt.gif_files]balls.gif
 If anyone wants the image in ILBM format (946 colors) then just give me
 a shout.

 for more information on what RayTracers are around or have been ported 
 to VAX/Unix any other systems you could check out the notes conference
 on
    EXOCET::RAY_TRACING

 Jka
3657.5WJG::GUINEAUTue Apr 10 1990 08:474
I ran it on my VS3900 (wjg) and it took 733.80 seconds - only 4.3 times slower 
than a VS5000.... Looks like it's time to upgrade :-) ;-}

john
3657.6More info pleaseBAHTAT::HILTONTwo in the box ready to goTue Apr 17 1990 13:2015
    So what do I need to view this on a workstation?
    
    I assume I need uray to run it, but can I just 'ave a look???
    
    ALSO, while I'm here.....
    
    Are there any GOOD PD programs around to allow you to ray trace and
    Gourard and Phong shade, texture etc etc?
    
    Are there any which can do this kinda stuff to, for example, DPaint II
    pictures?
    
    Cheers,
    
    Greg
3657.7don't forget radiosity!MILKWY::JANZENLife's beautiful from a DistanceTue Apr 17 1990 15:335
    Are there any good radiostiy rendering programs?
    Tom
    (Forms in Flight can put deluxe paint pictures onto surfaces liek
    wallpaper)
    Tom