I'm wanting to make some polka dots for a clown and I don't want to use actual textures to do it. Does anyone know how to do it with Poser 5 or 6's Material room nodes?

page 316 of the P6 manual, might do it!

Geez! I don't read manuals! LOL! I did find Spots via the nodes but they're evenly placed in rows. Now to figure out how to randomise their placement and size a bit.

today was the second look at the poser manual for me!! i know i have seen a node thing for spots somewhere, so looked there first. just looking at the previous page 315, i see there is a "noise" node and a "speckled granite" node bit too, maybe if you attach the noise one to the spots one it might randomize it,and the granite one mentions spots too. something to do with scaling them and global_coordinates. and if you look at page 335 you'll see a picture that might help you make a pom-pom for his hat.

Ummm... well let me put it this way... IF I can find my Poser manuals I'll look it up! LOL! I seem to have misplaced them both! Poser 4 & 6! I'll bet they're out in the RV but won't swear to it..

Quote - Ummm... well let me put it this way... IF I can find my Poser manuals I'll look it up! LOL! I seem to have misplaced them both! Poser 4 & 6! I'll bet they're out in the RV but won't swear to it..

Unless you've deleted it the easiest way o find the manual is "Help"->"Poser reference manual..."

I'm not sure of the Spots node for this though. Whenever I've used it in the past spots have clumped together. Not really polka dot type spots I'll have to have another look and see if I was doing something wrong.

Mizrael - If you don't mind PDF's, you should be able to download the manuals from e-Frontier's site.    But anything you come up with for randomizing dots size & location would be useful.

miz, I like that klown suit (the one in front of the giant donut).

There's various places you can feed something else into a shader to affect a pattern. On this one, I'd try feeding something into the mortar thickness input, as the inputs for the tile height and width could introduce distortion of the dots. I'm not sure how far you could push it before odd things happened. You also might want to use a math-node to set a minimum. If you want a sparse effect with more than one spot colour, have a look at using nghayward's technique twice, with different colours and offset settings, and combining them with a colour math node -- multiply, I think, since White=1. I'm not at my Poser machine, so I can't check that. Alternatively. for two different spot sizes, you could, if you matched the spacing, feed the output of one tile node into one of the Colour inputs of a second. One thing to remember is that there can also be distortions in the UV mapping or an item. You're trying to fit curved surfaces into 2 dimensions. So an even pattern doesn't always give an even result.

Random placement and size ok?

This took me a bit of work - 30 nodes. I did it with my tool Matmatic. Have you heard of it?

The shirt and pants are from the same shader with one difference. There is an adjustable minimum dot size. The smaller you make it, the more random the placement and size can be. The shirt has minimum dot size of 96% and the pants have a minimum of 20%. The overall dot size can be easily adjusted as well.

I have no solution for the distortions in the UV map as seen in the shoulders.

See thread:

http://www.renderosity.com/mod/forumpro/showthread.php?thread_id=2648396

for BB's actual matmatic script.

matt

http://news.yahoo.com/s/ap/20060905/ap_en_mo/people_zhang_ziyi

OT but couldn't help it with the topic of poka dots.  pretty funny.

Oh my achine eyes! What have I done?

Is there any way to make just one (1) Very Large Dot?

 Tile Node.

Round tiles
Height=1
Width=1
Mortar Thickness for the relative size in UV space, offsets to tweak the position.

Sure. In UV space, you just use the equation of a circle.

That was what was posted in the original thread that started all of matmatic.

http://www.renderosity.com/mod/forumpro/showthread.php?thread_id=2648396

Quote -  Tile Node.

Round tiles
Height=1
Width=1
Mortar Thickness for the relative size in UV space, offsets to tweak the position.

That's not easy to exactly position though. What if you want the circle center to be other than .5, .5

That's what you use the offset for.

(1,1) with mortar=0 gives you a single round dot filling the UV square.

(2,2) with mortar=0.5 (i think) gives you the same size dot with much bigger margins, and needs an offset.

Heheh. You somehow mis-read what I said.

I did not say "That's not possible to exactly position". I said "That's not easy to exactly position".

Suppose I want a circle of radius .275 centered on U = .595 and V = .7818?

In matmatic, I say:

dot = Sqrt((U - .595) ** 2 + (V - .7818) ** 2) <= .275

I can now use that dot to control anything I want.

Thank you once again BB.
That is exactly my present problem.
I was able to make one, but I could not control it when applying it to a specifically sized area

Obviously I will need to do something like the Racing StripeStripes formula for a matmatic material that I can control it's U & V location.
If nothing else, I learned that in the Node Cult Discussion.

Also I will need to substitute the "dot = Sqrt((U - .595) ** 2 + (V - .7818) ** 2) <= .275" statement for the Stripes creation section

C = .5
t = Abs(U - C)
t = t * (1 + .3 * Gain(V, .8))
W = .1/2
PSW = .005
W2 = W - PSW
transfactor = 400
clr = Blend(2*WHITE, RED, transfactor * (t - W) + .5)
clr = Blend(BLUE, clr, transfactor * (t - W2) + .5) outputs += ["BLEND", Surface(clr, .8, 1, .1, .001)]

My ultimate goal here is to make a Circle (Dot) large enough to place on a roof or door and then add a Number to the center of it. The Circle can be two tone but not required to be.

Thanks