sphere help

sidd · 2nd May 2003, 05:37

Can anyone help me with this preset.

the funny circle in the middle is meant to be a 3d sphere, but i cant work out how to texture it properly.

I have tried and tried and failed and searched and seached and failed etc etc.

shreyas_potnis · 2nd May 2003, 09:30

siddharta, are you avs axer?

and then, are you an Indian? (i think the name is...)

sidd · 2nd May 2003, 10:43

yes i am, and no im not..
(ohh, confusing)
i am axer, but im not indian.. im very much australian.

siddhartha is originally a tibetan name, no doubt it is used all over the eastern world. It is also a book by Herman Hesse that you all should read, though it has nothing to do with avs.

can anyone help me out with that texturing.. i can think of what it should be, but when i code it it doesnt work.. very frustrating.

sidd · 2nd May 2003, 12:16

IGNORE THIS WHOLE THREAD!

Problem solved.

i had
ix=dx*k-ox;iy=dy*k-oy;iz=dz*k-oz;
instead of
ix=dx*k+ox;iy=dy*k+oy;iz=dz*k+oz;

unripeLemon · 2nd May 2003, 15:49

Oh, thanx alot. Now I have this bloody sphere preset to delete. I hope it's a nice preset!

dirkdeftly · 4th May 2003, 04:54

1: POST THE IMAGE YOU'RE USING
2: that's anything but spherical

have you tried the d=d/sqrt(1-d) formula?

sidd · 4th May 2003, 05:52

bloody hell, i said ignore this thread everyone..
1: the image doesnt matter, use any friken image..
2: the sphere code is right, the texturing was wrong. Thats why it looked weird. but its fixed now, dont worry.

but.. just to keep the prols happy, here's some meat.

dirkdeftly · 4th May 2003, 22:28

i reiterate: that's anything but circular.

sidd · 5th May 2003, 01:59

post a screen shot, cause its working fine for me.
id like to know if there are any weird glitches on other machines..

is it the grid size thingo, like a sphere with square edges??
if it is, dont get stressed, ill alpha the edges when its done.

dirkdeftly · 5th May 2003, 03:00

what i'm saying is that shape ISN'T a sphere. how are you calculating it?

UnConeD · 5th May 2003, 03:40

Atero: it DEFINITELY looks spherical here, aside from the *sp*ct r*t**.

sidd · 5th May 2003, 08:43

oh.. if there are any weird variables or lines that dont do anything, its cause it started as something different.

but by buhjeebus, does it really matter whether its coded as a sphere if it looks like a sphere? i mean, do people look at a preset and judge it by the code. do they hope that code will jump around the screen to the music? if so, ive been going about this the wrong way all along. Also the aspect ratio thnigamy wasnt fixed when i posted that (i think)

edit/ i looked at mr.Acko's post again and realised that *sp*ct r*t** means aspect ratio.. very cryptic...

edit2/ the sphere code specifically was based on unconeds raytracing explaination in a thread here a while back, only slight adjustments have been made to those parts of the code. the camera angle code was from someone elses code (probably his again, but i cant remember) it uses clever atan2 stuff to make the camera always look at a point. (0,0,0) in this case.

dirkdeftly · 5th May 2003, 19:19

err - sorry, my comp lost that circle preset somewhere, the new version is...

sidd · 5th May 2003, 23:03

goodo, now lets all just leave this ghastly thread alone.

2nd May 2003, 09:30	#2
shreyas_potnis Major Dude Join Date: Jan 2003 Location: Mumbai, India Posts: 787	siddharta, are you avs axer? and then, are you an Indian? (i think the name is...) http://home.iitb.ac*****~shreyaspotnis

2nd May 2003, 12:16	#4
sidd Major Dude Join Date: May 2003 Location: Australia Posts: 1,353	IGNORE THIS WHOLE THREAD! Problem solved. i had ix=dxk-ox;iy=dyk-oy;iz=dzk-oz; instead of ix=dxk+ox;iy=dyk+oy;iz=dzk+oz; Last edited by sidd; 2nd May 2003 at 12:39.

4th May 2003, 04:54	#6
dirkdeftly Forum King Join Date: Jun 2001 Location: Cydonia, Mars Posts: 2,651	1: POST THE IMAGE YOU'RE USING 2: that's anything but spherical have you tried the d=d/sqrt(1-d) formula? "guilt is the cause of more disauders than history's most obscene marorders" --E. E. Cummings

4th May 2003, 22:28	#8
dirkdeftly Forum King Join Date: Jun 2001 Location: Cydonia, Mars Posts: 2,651	i reiterate: that's anything but circular. "guilt is the cause of more disauders than history's most obscene marorders" --E. E. Cummings

5th May 2003, 03:00	#10
dirkdeftly Forum King Join Date: Jun 2001 Location: Cydonia, Mars Posts: 2,651	what i'm saying is that shape ISN'T a sphere. how are you calculating it? "guilt is the cause of more disauders than history's most obscene marorders" --E. E. Cummings

2nd May 2003, 10:43	#3
sidd Major Dude Join Date: May 2003 Location: Australia Posts: 1,353	yes i am, and no im not.. (ohh, confusing) i am axer, but im not indian.. im very much australian. siddhartha is originally a tibetan name, no doubt it is used all over the eastern world. It is also a book by Herman Hesse that you all should read, though it has nothing to do with avs. can anyone help me out with that texturing.. i can think of what it should be, but when i code it it doesnt work.. very frustrating.

2nd May 2003, 15:49	#5
unripeLemon Senior Member Join Date: Mar 2003 Location: some place thats green Posts: 134	Oh, thanx alot. Now I have this bloody sphere preset to delete. I hope it's a nice preset!

5th May 2003, 01:59	#9
sidd Major Dude Join Date: May 2003 Location: Australia Posts: 1,353	post a screen shot, cause its working fine for me. id like to know if there are any weird glitches on other machines.. is it the grid size thingo, like a sphere with square edges?? if it is, dont get stressed, ill alpha the edges when its done.

5th May 2003, 03:40	#11
UnConeD Whacked Moderator Join Date: Jun 2001 Posts: 2,104	Atero: it DEFINITELY looks spherical here, aside from the spct rt*.

5th May 2003, 08:43	#12
sidd Major Dude Join Date: May 2003 Location: Australia Posts: 1,353	oh.. if there are any weird variables or lines that dont do anything, its cause it started as something different. but by buhjeebus, does it really matter whether its coded as a sphere if it looks like a sphere? i mean, do people look at a preset and judge it by the code. do they hope that code will jump around the screen to the music? if so, ive been going about this the wrong way all along. Also the aspect ratio thnigamy wasnt fixed when i posted that (i think) edit/ i looked at mr.Acko's post again and realised that spct rt* means aspect ratio.. very cryptic... edit2/ the sphere code specifically was based on unconeds raytracing explaination in a thread here a while back, only slight adjustments have been made to those parts of the code. the camera angle code was from someone elses code (probably his again, but i cant remember) it uses clever atan2 stuff to make the camera always look at a point. (0,0,0) in this case. Last edited by sidd; 5th May 2003 at 09:02.

5th May 2003, 19:19	#13
dirkdeftly Forum King Join Date: Jun 2001 Location: Cydonia, Mars Posts: 2,651	err - sorry, my comp lost that circle preset somewhere, the new version is... "guilt is the cause of more disauders than history's most obscene marorders" --E. E. Cummings

5th May 2003, 23:03	#14
sidd Major Dude Join Date: May 2003 Location: Australia Posts: 1,353	goodo, now lets all just leave this ghastly thread alone.

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