Warrior of the Light

30th October 2004 16:11 UTC

3d colors
for the attached preset (note to self: attach file) I want to have normal 3d colors, but all I seem able to do is maxblend colors, which sucks if you have different color-intensities.

any help on how to do this in normal replace mode?

Tuggummi

31st October 2004 23:38 UTC

Sorry, but im not familiar with backface culling or what ever it is called. I do want to say though that a rotating house isn't very appealing visually... But a rotating scene with house(s), trees, fences, animals... NOW there is an IDEA! ;)

Warrior of the Light

1st November 2004 08:05 UTC

The house refers to the "home" button in most explorers.. 127.0.0.1 is your home IP-address. therefore, "there's no place like 127.0.0.1" means "there's no place like home".

It's just a little computerfreak humour, but the preset was made mostly as a random example.

Tuggummi

1st November 2004 10:39 UTC

Mnnyes, i wasn't talking about the name, just that a single house won't look like much.

But if it's just an example then who cares :igor:

Maybe i'll do that scene preset myself then :p

^..^

1st November 2004 11:39 UTC

i'm not an expert on this techniques. But perhaps the colors are wrong because the parts of the house are always rendered in the same order: first the roof then the sides and bottom. So the last rendered parts always seem to be infront of the object, even if another part should cover it.

Warrior of the Light

1st November 2004 13:38 UTC

That's the problem indeed, that only covers my problem. An answer would be nicer :)

@ Tugg: go ahead

Yathosho

1st November 2004 14:00 UTC

Originally posted by Tuggummi
But a rotating scene with house(s), trees, fences, animals... NOW there is an IDEA! ;)

Yathosho

1st November 2004 14:01 UTC

Originally posted by Tuggummi
But a rotating scene with house(s), trees, fences, animals... NOW there is an IDEA! ;)

^..^

1st November 2004 14:02 UTC

Well, sorry. I thought you wanted to fix it by changing the render mode somehow. (what doesn't fix it at all, i think).
But surely Tuggummi will find a solution. ;)

PAK-9

1st November 2004 18:22 UTC

I havent looked at the preset cos I'm at uni but if you have essentially a rotating cube and you want to use replace mode you need to keep swapping the faces such that the last ssc/triangle render in your editor is always the front face. You also should optimise by not drawing the faces that are facing away from the camera

This typically involves taking the normal of the face and putting it through your rotation matrices, then testing the result against a value to determine if it is facing the camera or not....this is backface culling

To sort the faces you compare the 'final' z value of your faces (this will tell you what is further or nearer from the camera) and 'swap' them accordingly. Try a test with 2 faces, 2 opposing sides of a cube for example, use 2 seperate solid ssc's and swap the primary z value based on the final z values.

Thats such a terrible description of both those ideas

/me downloads preset to take home and fix

I'll just fix it and upload it later :P

PAK-9

1st November 2004 18:25 UTC

And 127.0.0.1 is actually 'localhost' not 'home'. (Try start->run->cmd->ping localhost then start->run->cmd->ping home) so the title of your preset is "there's no place like localhost"...mmm catchy

Warrior of the Light

1st November 2004 18:46 UTC

lol

I know it's localhost, I was just trying to make n00bs understand it too and to have some sort of funny preset :igor:

Thanks a lot (in advance) for fixing it. I know i understand pure math code better than english literature, since the names aren't even close to what we call it all in dutch.

I think I'll understand it better if I read your above post over for about 5 times or so.. :)

Guess I'd better start reading and waiting now instead of speak (=write)

Tuggummi

1st November 2004 22:32 UTC

But surely Tuggummi will find a solution.

^..^

1st November 2004 23:04 UTC

If it's really so, then you can hide that fact pretty well. My "technical" skills aren't very good too, but my presets hardly ever look as nice as yours. :p

Sorry for offtopic too, but had to stop tuggummi from being overmodest (hope i got the right word..)

PAK-9

2nd November 2004 15:20 UTC

i wonder why no one hasn't told you yet, but I'm really good at doing technical stuff

Sorry for being undermodest (hope i got the right word..) but here's teh proof

PAK-9

2nd November 2004 15:22 UTC

The winamp.com AVS forums, a writhing sea of bad grammer, made up words and double negatives

Warrior of the Light

2nd November 2004 17:10 UTC

Whoa! Thanks a lot for that! I'll spend the night studying this I suppose

you are the [insert made up word here]!!!

^..^

2nd November 2004 19:04 UTC

Originally posted by PAK-9
The winamp.com AVS forums, a writhing sea of bad grammer, made up words and double negatives

PAK-9

2nd November 2004 22:49 UTC

Originally posted by ^..^
That's why those with poor english knowledges (like me :p) don't fear to post here: It's not that obvious when the dusty school-english fails.

Tuggummi

2nd November 2004 22:56 UTC

Naah, i think your finnish is way better than mine PAK-9.

vittu

PAK-9

2nd November 2004 23:06 UTC

yea pituu vippii bloobly wooby skii pae boob

Doggy Dog

3rd November 2004 10:19 UTC

Yeah pak, but horses usually don't have five legs...

^..^

3rd November 2004 17:43 UTC

Originally posted by PAK-9
As if to perfectly illustrate your point I have absolutely no idea what your saying.

Originally posted by PAK-9
The easiest way to make your posts easier to read is to remove the double negatives, for example

PAK-9

3rd November 2004 19:09 UTC

Originally posted by ^..^
...My formulations may be ugly...

^..^

3rd November 2004 22:01 UTC

Originally posted by PAK-9
ugly formulations aside, your English is still terrible.

Warrior of the Light

4th November 2004 08:52 UTC

To close the offtopic topic, let's conclude it with this:

Just as in AVS, we all do our what we can to try and learn to improve.

//below is back on topic

PAK-9

4th November 2004 17:09 UTC

I never mentioned it before but what are these exciting '3D colours' you refer to at the top of this thread and in the title.

Warrior of the Light

4th November 2004 17:24 UTC

In maxblend mode, I usually made all scopes with the same colorintensity, i.e. r+g+b= (some constant value) and then tweaked the proportions of r,g and b. If you multiply that with the distance (z), you have some backface culling hack that uses colors only.

r2d2 in pp2 was done this way

PAK-9

4th November 2004 22:58 UTC

nothing exciting then (its an occlusion hack btw not a bf culling hack). Hopefully you've learnt the error of your colour coding ways from my fixed version.

Warrior of the Light

5th November 2004 07:17 UTC

yes I have.

(I guess then that's how far my english reaches :) )

amphirion

24th January 2005 17:21 UTC

since this is around my problem area, i hope someone can help me out:
i was fiddling with the megabuff again and i made something really cool. however, there are some ugly lines that connect the squares together. i don't have enough color manipulation skills to cull off these lines so if some math genius figured it out for me, that'd be great.
preset is here:
http://www.deviantart.com/deviation/14291423/

thanks

PAK-9

24th January 2005 18:29 UTC

I took a brief look at it ampy but I think you need to re-code the structure a little bit. You would be better defining a square, then repeating that square with whatever offsets you want....

point=if(equal(point,4),0,point+1);
x1=<define square>+megabuf(index)
y1=<define square>+megabuf(index+1);
z1=<define square>+megabuf(index+2);
index=index+bnot(point);
skip=bnot(point);

define a square using equal(point,0)*bleh+equal(point,1)*blehbler etc..

so you are starting a new square when point=0, and skipping drawing that line. I dont have your code in front of me but i think you used trig to define your squares which is not a good way (expensive)

If anyone can be bothered to explain that better feel free :P

amphirion

25th January 2005 00:40 UTC

just need to make sure, because i never really dealt with equal/above/below functions very much, so what the equal(point,0) , equal (point,1) means is that you are telling the scope to draw a line from 0 to 1 so i would need a total of four lines to define a square right?

Mr_Nudge

25th January 2005 11:34 UTC

@ WotL, you'd want to talk to unconed about scope swapping, just take at his preset goldie.

PAK-9

26th January 2005 14:33 UTC

Well, yes you need four lines but thats five points per square because the last point and first point have to be the same to make it join up. My pseudocode should probably be point=if(equal(point,5),0,point+1); I rushed it off just to give you an idea of the structure.

You can search the forums for a point to point square drawing method but I'll knock one out here quickly:

frame:
n=5;
point=0;
point:
x1=
equal(point,0)*-1
+equal(point,1)*1
+equal(point,2)*1
+equal(point,3)*-1;
y1=
equal(point,0)*-1
equal(point,1)*-1
equal(point,2)*1
+equal(point,3)*1;
z1=0;
point=point+1;
....

if you want it to be a long line of squares you can say

frame:
n=50;
point=0;
offset=-1;
point:
x1=
equal(point,0)*-1
+equal(point,1)*1
+equal(point,2)*1
+equal(point,3)*-1;
y1=
equal(point,0)*-1
equal(point,1)*-1
equal(point,2)*1
+equal(point,3)*1;
point=if(equal(point,4),0,point+1);
offset=offset+bnot(point)*0.1;
z1=offset;
skip=bnot(point);
....

that way 'point' defines the point of the square you are drawing, and when it hits 0 you offset in the z axis a little bit and draw another square. You get rid of the lines by setting skip to 1 when point = 0. I dont know if that code works as is, I'm not in front of AVS but its basically right.

You should get my programming guide if you want learn how to do more 'advanced' stuff like this

amphirion

26th January 2005 22:51 UTC

you know what? i think i wil ;)