Hi all!! I'm looking for a formulae for a general cylinder. I just find only (x-x0)^2 + (y-y0)^2 = Radius; I want to rotate a cylinder arround three axis with...
Dark Ice
darkice@...
Aug 10, 2000 7:20 pm
110
... For the fixed cylinder: x^2+y^2 = r^2 you can do simple ray tracing in 2 dimmensions. As soon as you rotate that cylinder you will introduce more terms...
Paul Kahler
phkahler@...
Aug 15, 2000 8:13 pm
111
... (x-x0)^2 + (y-y0)^2 = Radius; ... camera You can both rotate the xyz space you use in your calcs or (using pitagora's theorem): (P-O)^2 - ((P-O)*D)^2 =...
Marco *PaN!* Foco
pansk@...
Aug 15, 2000 8:17 pm
112
Quartz told me I should advertise my 4kb raytracing-intro here, so here it is. It got 5th at Assembly'2k and can be downloaded from ...
Miika Sell
itchi@...
Aug 16, 2000 4:31 pm
113
I've been able to obtain by myself a 4th degree equation for the ray-torus intersection and I already know how to calculate the normal at a given torus point...
abelbg@...
Aug 28, 2000 4:23 pm
114
Hi, The list is not very active lately, so I thought I'd give a little food for thought. I've been thinking a lot about Bounding Volume Hierarchys (BVH) lately...
Paul Kahler
phkahler@...
Aug 28, 2000 4:24 pm
115
anybody got with that? here is the page http://www.acm.org/pubs/citations/journals/tog/1994-13-4/p376- paglieroni/ using this or some other fast raycasting...
malkia eastern.analog
malkia@...
Aug 28, 2000 4:24 pm
116
When I was looking for solutions to the quartic, I ended up asking many of the questions you have. A couple people suggested the book: Mathematical Thought...
Paul Kahler
phkahler@...
Aug 28, 2000 9:45 pm
117
... ... Just one thing... to demonstrate those formulas you should try this way: 1) Make a decision tree of all the conditions in the formula 2) Demonstrate,...
Marco *PaN!* Foco
pansk@...
Aug 31, 2000 3:55 pm
118
Hi, Im a new member of this e-list. Im coder of elerium core, a spanish demogroup. I have been programing rayt scenes this last days, but my maths have touch...
Peer Gynt
peer_gynt@...
Sep 1, 2000 10:08 pm
119
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the realtime_raytracing group. File :...
realtime_raytracing@e...
Sep 1, 2000 10:12 pm
120
Enter your vote today! Check out the new poll for the realtime_raytracing group: What space subdivision structure are you using? o Hierarchical Bounding...
realtime_raytracing@e...
Sep 1, 2000 10:17 pm
121
Hiho.. I am new to this group, too. I just recently started with some demoscene related rtrt. For the time being I am only using Quadtrees for screen space,...
Shiva
shivak@...
Sep 1, 2000 10:50 pm
122
Hello you all, just back from holidays (siggraph was great this year), and i wanted to make a short poll here, as you might have seen. Please vote! (on the web...
Piero Foscari
wally@...
Sep 2, 2000 3:23 pm
123
... Well, that's a good idea... but the main problem is: Are the implicit cubic surfaces useful ? Since implicit cubic surface aren't bezier patches, I really...
Marco *PaN!* Foco
pansk@...
Sep 2, 2000 4:56 pm
124
... It's a bit expensive... but I will try to get a copy. ... See this code from the Graphics Gems (as suggested Piero): ...
Abel Bernabeu
abelbg@...
Sep 3, 2000 10:17 am
125
... Thanks, now I'm preparing my exams, but I will try to proceed as you suggested as soon as I have time, as far as I can see there is no other way of making...
Abel Bernabeu
abelbg@...
Sep 3, 2000 10:19 am
126
... In a demo there are ofcourse ways to use cubics as full objects: you can have, say a wine glass out of one single primitive (all references to existing...
Piero Foscari
wally@...
Sep 4, 2000 4:54 pm
127
... And, of course, is the same source from which I started to code the torus-ray intersection routine for my intros (it's just an optimisation of that source,...
Marco *PaN!* Foco
pansk@...
Sep 4, 2000 9:58 pm
128
... I just started using axis-aligned Octrees, and I think they are fantastic. Then again, I'm looking for something that can handle a large number of objects...
Paul Kahler
phkahler@...
Sep 6, 2000 8:45 pm
129
... That link is the best one I have seen yet. They even have a method that pulls out a linear factor. I need to print it and reread to see if it tells how to...
Paul Kahler
phkahler@...
Sep 6, 2000 8:48 pm
130
Hi all, This one is long, but there's a demo at the end. OK, I've done some checking, and ran across RTNv12n2 where there is an article covering many (all?) of...
Paul Kahler
phkahler@...
Sep 8, 2000 7:14 pm
131
Jo... ... Definitely so very cool... It's one of the most interesting realtime RT applications I've seen lately. It's nice to see that RTRT is going ...
Cesare Castiglia
c.castiglia@...
Sep 26, 2000 10:52 am
132
... I already had seen your intros. Hey! Nescafe rulex! :D I can see an obvious optimization. When there are three real roots (D<0) we have the following code:...
Abel Bernabeu
abelbg@...
Sep 26, 2000 10:53 am
133
take a look at my real time raytracer with relativistic effects. it's my first attempt at a real time tracer and i would be interested in others opinions on...
damiengeorge@...
Sep 26, 2000 10:53 am
134
______________________________________________________________________________ FAQ for realtime raytracing ...
Piero Foscari
wally@...
Nov 5, 2000 9:26 pm
135
Hiho. Me and my crew just released some nice looking RTRT 64k Intro at the Dialogos 2k party. You might want to check it out, however it requires a lot more...
Shiva
shivak@...
Nov 5, 2000 10:44 pm
136
Jo... ... Checked out! The tracer doesn't impress me much (tho it makes everything that a top-notch rtrt is supposed to do) but jesus, those textures are ...
Cesare Castiglia
c.castiglia@...
Nov 9, 2000 7:42 am
137
hmmm, all i can get it to do ..... is crash my machine :( is there any particular "mode" my machine must be in, anything to be pre-setup ? Thanks Clive ... ...
Clive Crous
ccrous@...
Nov 10, 2000 8:55 am
138
Hiho ... Yep. They are not generated but hand drawn with an artpad by noize. And there my wavelet image compressor really kicked in, giving us very high image...
