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Author Topic: Raycaster from Planet Disco  (Read 8966 times)

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Offline LincolnB

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Raycaster from Planet Disco
« on: February 20, 2012, 12:35:35 pm »
So I decided to make my very own (extremely hard to see) disco-caster for my Flashlight Demo thread. It was actually really easy, from what I already in the the flashlight demo.



(in retrospect I went a little crazy on the psychedelic wall effects)
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Offline Matrefeytontias

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Re: Raycaster from Planet Disco
« Reply #1 on: February 20, 2012, 12:43:29 pm »
Waoufh :crazy:

In what langage did you do that ?
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Offline LincolnB

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Re: Raycaster from Planet Disco
« Reply #2 on: February 20, 2012, 12:46:59 pm »
Axe :D
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Offline nxtboy III

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Re: Raycaster from Planet Disco
« Reply #3 on: February 20, 2012, 12:48:18 pm »
Axe? Hmm..
A lot of your work is done in ion, right?
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Offline LincolnB

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Re: Raycaster from Planet Disco
« Reply #4 on: February 20, 2012, 12:48:40 pm »
Ion? What do you mean?
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Offline Matrefeytontias

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Re: Raycaster from Planet Disco
« Reply #5 on: February 20, 2012, 12:50:10 pm »
Waaaah O.O

That's a bad thing that nobody already made a tuto on raycasting (3D is the ultime goal of an on-calc programmer XD )
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Offline LincolnB

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Re: Raycaster from Planet Disco
« Reply #6 on: February 20, 2012, 12:52:46 pm »
hehe you know there are two other raycasters right?\

Runer's:
http://ourl.ca/8272

and Squidgetx's:
http://ourl.ca/8144
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Offline Matrefeytontias

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Re: Raycaster from Planet Disco
« Reply #7 on: February 20, 2012, 12:54:45 pm »
yeah, but that's compressed programs, with ununderstable code (what, I'm a newbie ?)
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Offline LincolnB

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Re: Raycaster from Planet Disco
« Reply #8 on: February 20, 2012, 12:55:39 pm »
Compressed programs? Neither of the three have any sort of compression going on (that I know of), it's just regular Axe.
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Offline Matrefeytontias

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Re: Raycaster from Planet Disco
« Reply #9 on: February 20, 2012, 12:59:48 pm »
Yeah, but I meant without any explication of how it work (bad English powaaa)
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Offline squidgetx

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Re: Raycaster from Planet Disco
« Reply #10 on: February 20, 2012, 01:37:47 pm »
Lol, that looks like it has some of the same display glitches that mine had...sigh, i never did figure out how to get mine to work properly :P
« Last Edit: February 20, 2012, 04:47:02 pm by squidgetx »
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Offline LincolnB

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Re: Raycaster from Planet Disco
« Reply #11 on: February 20, 2012, 02:25:08 pm »
I assume you're refferring to the "fishbowl" type effect, with non-linearly sloped walls and whatnot?
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Offline DJ Omnimaga

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Re: Raycaster from Planet Disco
« Reply #12 on: February 20, 2012, 02:38:41 pm »
Looks quite nice actually. I was surprised at the speed too. :)
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Offline squidgetx

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Re: Raycaster from Planet Disco
« Reply #13 on: February 20, 2012, 04:47:31 pm »
Quote from: buttsfredkin on February 20, 2012, 02:25:08 pm
I assume you're refferring to the "fishbowl" type effect, with non-linearly sloped walls and whatnot?

Yeah. I know the theory behind how to deal with it but iirc whenever I tried to implement it it never worked...I should work on that again sometime
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Offline Builderboy

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Re: Raycaster from Planet Disco
« Reply #14 on: February 20, 2012, 04:54:59 pm »
I believe to fix the fishbowl effect you just need to multiply the ray distance by the Cos() of the angle between your front view and the angle of the ray.  Obviously this would be a bit tricky in Axe since Cos() returns a number from -127 to 128 so you would need to make sure you handled that properly, or got a hold of a trig routine that returns x256 format, or better yet, make a 96 byte table for the 96 possible cos values.
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