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Old 12th December 2005, 22:05   #81
UIUC85
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Just cause there's a lot about raytracing on here and I was playing around with some stuff I decided to post this up here. Something fun for other tech-heads to look at maybe? Maybe it's been done and I didn't know but I haven't seen it so enjoy.
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Old 13th December 2005, 00:03   #82
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Quote:
Originally posted by JFASI
I had no idea what raytracing was about, or how certain DM worked. I came and found out. That's ok.
Now, if I had gone and just asked you for code and used it without any analysis, then it would be different.
Yeah, and if you looked up raytracing on the internet, and then looked up the things you didnt understand on those pages... etc... it would be different again. The information is out there, and if you can't get it for yourself, you will only be able to go as far as other people take you.

-- Jheriko

'Everything around us can be represented and understood through numbers'
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Old 13th December 2005, 01:20   #83
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True. But don't condemn me for this little foray into explanation...

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Old 13th December 2005, 02:20   #84
UIUC85
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Any thoughts on my tech preset? (not in terms of it being a music visualization but just a tech demo)
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Old 13th December 2005, 20:35   #85
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I've never seen anything like this before, and I think it's pretty nifty!
I especially like that slick and polished look of it.

review resolution[s]: 172x172 & 344x344
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Old 13th December 2005, 20:37   #86
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That texture on the sphere is pretty awesome. I like it. Oh, yeah, technical...its cool...

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Old 13th December 2005, 21:13   #87
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It's indeed cool!
But unfortunately not the first such thing! Jheriko has already made a pretty similar sphere tech-demo preset before:

http://www.deviantart.com/deviation/13908660

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Old 13th December 2005, 21:33   #88
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Awww...
It's still cool, though.

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Old 13th December 2005, 22:51   #89
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i made some thing similar to this preset tho, using texture sources to do normal mapping. you can break the lighting down into stuff you can do with blend modes and unique tones etc..

But yeah, using the superscope looks better i think... and its faster for a lot of stuff too

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Old 13th December 2005, 23:53   #90
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You did a dm that does specular highlights and bump mapping? I'd like to see that. I knew you did the ssc version but I wanted to do it with dm's instead.


Here's another neat tech demo that I whipped up today. Like I said in the comment, I know UnConeD did a reflection dm but this has both objects reflecting and textures on the objects that are reflecting as well. I made a few comments about other things in the preset if you're interested. Good stuff
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File Type: zip reflect2.zip (1.6 KB, 194 views)

Last edited by UIUC85; 14th December 2005 at 00:59.
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Old 14th December 2005, 02:54   #91
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i used the old trick of rendering low res light directions to r,g,b and dotting them with a normal map on the plane.. i lost it a while ago tho, i didnt make it on this computer... it was slow though. didnt have spec, just normal based directional lighting...

besides, dms are ugly. triangle is the way to go.

i dunno how to tell you how bad that reflection preset looks... it just looks bad.

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Old 14th December 2005, 04:01   #92
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this is how to do a reflection effect...

its not a hack or anything, honest
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File Type: zip reflecty.zip (3.5 KB, 209 views)

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Old 14th December 2005, 04:58   #93
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i'm not post pumping honest...


here is what i was talking about with blending stuff together... its hella slow, and doesnt even use a dm, it just assumes the picture is .1 away from the light in z... whatever that means

its a bit poo. try enabling the last effect list to see what it looks like when the diffuse stage is blended.. its not perfect either, definately some bug... but i just threw this together so you could see what i mean... its very hax


oh.. and i didnt steal these textures, i made them from scratch...

EDIT: updated attachment so its more fixed... altho... no one dled it... yet
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File Type: zip textures.zip (24.0 KB, 196 views)

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Old 14th December 2005, 06:47   #94
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That sure is a lot of effects for a emulated bump, but it's resolution fixed, yay! Now someone do that to the original bump effect

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Im retarded... err i mean retired!
Probably both...
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Old 14th December 2005, 06:54   #95
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it is really crap, but the excessive amount of stuff is to do the dot product as blends. since avs can only use positive colors in its buffers i need to work out the positives*positives, positives*negatives and negatives*negatives and add and subtract them from each other to get the result. very slow. it can be optimised... but its a flawed method anyway..

although, it can let you do 3d stuff

updated preset, one with spec hax...

http://jheriko.kicks-ass.net/avs_projects/textures.zip

-- Jheriko

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Last edited by jheriko; 14th December 2005 at 07:37.
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Old 14th December 2005, 22:03   #96
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I know my reflection preset looks like total crap. The purpose was more to have two reflecting objects. I agree that triangle is the way to go when it comes to making solid shapes and what not, but dm's let you have textures. You can't really have textures on objects made from triangles (unless tomylobo threw in (u,v) texture mapping *dream*). Heck if we could speficy 3 colors to blend over the triangle we could do gouraud shading which would rock...

Yeah it is too bad there's only positive colors allowed.

Anymore cool demos to post?
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Old 14th December 2005, 22:33   #97
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you can use textures with triangles if you use gvm... i made something ages ago that did it.. and pak has done it too. its not that big a deal. i think there is some info on this thread:

http://forums.winamp.com/showthread....hreadid=211772

also i made a spiffy tool with ui and shit using .net which is on this thread:

http://forums.winamp.com/showthread....hreadid=231934

interesting and vaguely related demos:

http://jheriko.kicks-ass.net/avs_pro...ity%20shit.rar

prolly the most complicated example:

(slightly broken dynamic lights.. this is quite old now)

http://jheriko.kicks-ass.net/avs_pro...0intro_old.rar

i did an animated shadow mapping of a stereotypical fan in a metal room... but it came out crappy and i cant find it...

there is also:

ftp://jheriko.kicks-ass.net:69/AVS/J...ter%20demo.avs

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Last edited by jheriko; 14th December 2005 at 22:49.
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Old 15th December 2005, 01:26   #98
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Oh man there's so many new apes I'm not knowledgable in and no time to learn yet. The global vars ape you made looks pretty dang nice btw.
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Old 15th December 2005, 03:09   #99
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I'm confused, I think I'll go and discover invaluable AVS experience now...

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