Welcome to the Poser - OFFICIAL Forum

Forum Moderators:  digitell    Forum Coordinators:  RedPhantom

Poser - OFFICIAL F.A.Q (Updated: 2020 Feb 18 1:59 pm)


 Subject: Artistic "Lens"

bagginsbill opened this issue on Oct 29, 2008 · 247 posts

Top of Forum Unsubscribe Print

  bagginsbill    ( ) ( posted at 6:16PM Wed, 29 October 2008 · edited on 6:17PM Wed, 29 October 2008


For your amusement, my latest Poser shader trick.

This is stock M4 and a couple of primitive props. I didn't touch anything on M4 - this is with his out-of-the-box materials.

The right side is looking through a new prop I have devised. I call it the Artistic "Lens".

The pattern doesn't look right reduced, so click for full size.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  JenX    ( ) ( posted at 6:20PM Wed, 29 October 2008  · @3323428

That's pretty neat :) 

Sitemail | Freestuff | Craftythings | Youtube|

Knowledge is knowing a tomato is a fruit. Wisdom is not putting it into a fruit salad.

  hborre    ( ) ( posted at 8:12PM Wed, 29 October 2008  · @3323491

Somewhat of a news print quality.


  momodot    ( ) ( posted at 8:45PM Wed, 29 October 2008  · @3323500

Cool. Please tell more.  Can it do a "hand drawn" look? I wonder if it can do stuff like over or under saturate?



  bagginsbill    ( ) ( posted at 9:35PM Wed, 29 October 2008  · @3323522


There are tons of things you can do. I've only just started exploring it.

Here is monochrome - precisely (mathematically) the way old TV's did black and white. Not the same as desaturated, but better. (I can do desat as well, but it's not as good.)


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  bagginsbill    ( ) ( posted at 9:36PM Wed, 29 October 2008  · @3323523


B&W with extra contrast.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  bagginsbill    ( ) ( posted at 9:36PM Wed, 29 October 2008  · @3323524


Slightly over saturated.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  bagginsbill    ( ) ( posted at 9:36PM Wed, 29 October 2008  · @3323525


Way oversaturated.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  bagginsbill    ( ) ( posted at 9:36PM Wed, 29 October 2008  · @3323526


Stark.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  bagginsbill    ( ) ( posted at 9:37PM Wed, 29 October 2008  · @3323527


B&W TV complete with scan lines and blue tint.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  bagginsbill    ( ) ( posted at 9:37PM Wed, 29 October 2008  · @3323529


No name. Deconstructed? Color Dissolve?


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  bagginsbill    ( ) ( posted at 9:45PM Wed, 29 October 2008  · @3323533


Monochrome noise.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  bagginsbill    ( ) ( posted at 9:49PM Wed, 29 October 2008  · @3323535


Distortion.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  bagginsbill    ( ) ( posted at 9:56PM Wed, 29 October 2008  · @3323539


Fibers?


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  bagginsbill    ( ) ( posted at 10:06PM Wed, 29 October 2008  · @3323546


Scary.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  replicand    ( ) ( posted at 12:26AM Thu, 30 October 2008  · @3323615

 so how does it work?


  R_Hatch    ( ) ( posted at 1:36AM Thu, 30 October 2008  · @3323644

Dangit, I meant to do a tutorial on this stuff a long time ago and forgot. Fortunately, BB is much better at tutorials than I am :)


  Latexluv    ( ) ( posted at 3:13AM Thu, 30 October 2008  · @3323690

Awesome effects! Might be interested in the B&W one. How'd you do it?

"A lonely climber walks a tightrope to where dreams are born and never die!" - Billy Thorpe, song: Edge of Madness, album: East of Eden's Gate

Weapons of choice:

Poser Pro 2012, SR2, Paintshop Pro 8

 

 


  EnglishBob    ( ) ( posted at 6:41AM Thu, 30 October 2008  · @3323783

I want one. :-) 


  nyguy    ( ) ( posted at 6:44AM Thu, 30 October 2008  · @3323785

Quote - No name. Deconstructed? Color Dissolve?

Looks more "Matrix" like

Poserverse The New Home for NYGUY's Freebies

  pakled    ( ) ( posted at 7:30AM Thu, 30 October 2008  · @3323794

looks like filters from the Gimp or probably Photoshop. Interesting effect.

I wish I'd said that.. The Staircase Wit

anahl nathrak uth vas betude doth yel dyenvey..;)


  odf    ( ) ( posted at 7:54AM Thu, 30 October 2008  · @3323799

That's really cool stuff. How are you doing it?

Have you met Antonia?

I did not jump. I made a tiny step and there conclusions were. (Buffy the Vampire Slayer)

  bagginsbill    ( ) ( posted at 8:27AM Thu, 30 October 2008  · @3323809

The basic setup is very simple.

Load a one-sided square. Scale it up so it is like a screen hanging in front of your whole scene, between the camera and the subject. This is your "lens". You cannot see the scene directly anymore, only through the lens.

Set the square properties to no shadow, and not visible in raytracing.

Go into the material room for the lens (the square).

Set Diffuse_Value=0, Specular_Value = 0.

Add a Refract node and plug it into Alternate_Diffuse. (Or if you prefer, use one of the two-knob channels such as Ambient or Refraction. With such channels, you can have separate controls (and potentially nodes) on the color and the brightness.)

Set the Refract IOR = 1.0.

At this point you can render and your original scene should appear unchanged. You have a neutral lens. Save this in your library for future use as a starter.

Then you go from there playing with the effects.

For example, put an HSV node between the Refract and the root node. Now you can adjust hue, saturation, and brightness for the entire scene. Not only does this simple setup give you many artistic options, but you can also adjust your LIGHT LEVELS all from this one place: HSV.Level.

After you get the hang of that you can start doing more tricky stuff between the Refract node and the root node.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  ice-boy    ( ) ( posted at 8:30AM Thu, 30 October 2008  · @3323810

i think this is fantastic and can make very artistic renders.

but photoshop is more handy. of course if we dont have photoshop then this is the way to go.


  momodot    ( ) ( posted at 8:31AM Thu, 30 October 2008  · @3323811

Wow! Very nice. The black and white w/contrast boost looks great. I linke the TV and Fiber and the rest too. Very curious.



  bagginsbill    ( ) ( posted at 8:42AM Thu, 30 October 2008  · @3323812


You can also perform the same operation as post-work gamma correction.

Here's the setup.

Of course, you really should anti-gamma correct all your incoming colors to get this to work really well. Otherwise, it may look washed out.

If you're not going to anti-gamma correct all your incoming material, you can try decreasing the amount of gamma correction. I used 2.2 here in the Math:Div node - try lower numbers like 1.5.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  bagginsbill    ( ) ( posted at 8:48AM Thu, 30 October 2008 · edited on 8:50AM Thu, 30 October 2008 · @3323816


Here's a workaround.

I inserted an HSV node between the Refract and the gamma correction. Using that I pre-saturate the image and then gamma correct using 1.5 instead of 2.2.

This brings back a lot of the tones that get lost from using bad incoming material with GC.

And, yes, you can do these same effects in post-work. However, I like this better, because:

1) I don't like the extra step of postwork
2) I can see the true final outcome immediately, and can make adjustments in place without having to guess how that will look after I post-work.
3) If I am making an animation, the effects are already done for every frame. Postworking a movie is a lot harder than postworking a still image.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  bagginsbill    ( ) ( posted at 8:59AM Thu, 30 October 2008  · @3323818


Check this out. Many Poser users say they just don't know how to get good lighting. It's not the lighting, folks, it's your monitor. You must tone-map the image for your monitor.

Here's a render with just a single infinite light at 55%.

Most people would immediately start adding more lights or increase this light's intensity. That's not the problem. There is plenty of light.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  bagginsbill    ( ) ( posted at 9:00AM Thu, 30 October 2008  · @3323821


Here is the render with the setup in the post above with GC = 1.5 and the Saturation=1.5.

The realism is much better than you'd get if you just blasted more light at it.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  ice-boy    ( ) ( posted at 9:03AM Thu, 30 October 2008  · @3323824

this gamma correction setup is very interesting. this is better then in photoshop. because there you lose a lot of detail.


  ice-boy    ( ) ( posted at 9:05AM Thu, 30 October 2008  · @3323826

Quote - Check this out. Many Poser users say they just don't know how to get good lighting. It's not the lighting, folks, it's your monitor. You must tone-map the image for your monitor.

Here's a render with just a single infinite light at 55%.

Most people would immediately start adding more lights or increase this light's intensity. That's not the problem. There is plenty of light.

they dont listen. htey just dont read.

i sitll see the classic poser renders with the 3 times over bright lighting.


  momodot    ( ) ( posted at 10:33AM Thu, 30 October 2008  · @3323875

The Gamma stuff is PoserPro? I'll check my P7.

Do you have advise for setting up the LCD on a laptop without calibration hardware or is expecting a descent display on a laptop unrealistic. I tried pulling out my old c.2002 color monitor and plugging the laptop into it but the color seemed really off, it was much darker and warmer than my laptop and fuzzy and blinky, so I gave up on that idea.

I am not the brightest... would you show a screen capture of the set-up for the fiber effect?



  bagginsbill    ( ) ( posted at 10:41AM Thu, 30 October 2008  · @3323878

Quote - The Gamma stuff is PoserPro? I'll check my P7.
... would you show a screen capture of the set-up for the fiber effect?

PoserPro is not needed for this lens. The GC lens I showed will work all the way back to Poser 5.

I'll post the fiber effect in a minute.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  bagginsbill    ( ) ( posted at 10:44AM Thu, 30 October 2008  · @3323881

Oh I forgot the question about calibration.

Laptops displays (both the video card and the actual screen) are usually crap, I think. I've tried calibrating both my laptops to produce consistent looks with my desktop and I can't.

Since I'm on the road almost all the time now, most of my thread posted renders are from my laptop. Quite often I get home and look at my own posts and I'm shocked at what I posted.

My laptop is dark and muddy, so I overexpose a lot of my renders lately.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  bagginsbill    ( ) ( posted at 10:48AM Thu, 30 October 2008  · @3323884


Here is the node setup for the fiber effect. Pretty simple.

Play with the numbers to see how you can alter the outcome.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  bagginsbill    ( ) ( posted at 10:57AM Thu, 30 October 2008 · edited on 10:58AM Thu, 30 October 2008 · @3323892


Here's the node setup for the black-and-white TV with scanlines.

The green color is RGB 77, 149, 28. These add up to 255. Those represent the RGB ratios originally used to map real-life color onto a monochrome tv image.

The Math:Cosine node is doing the lines. Then I have to adjust them to make them positive and produce the correct contour.

The frequency of the lines is that number 1500. Bigger numbers produce more lines. Be careful - you can get interference patterns if the lines start to approach the size of your actual pixels. To make really fine lines, you'll have to increase your render quality quite a bit. You'll want to use smaller Min Shading Rate, and larger Pixel Samples.

I also added some small amount of blue tint to the results - this is in the color setting of the Alternate_Diffuse channel.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  momodot    ( ) ( posted at 11:04AM Thu, 30 October 2008  · @3323895

Very helpful. Thank you. Esp, re. RGB 77, 149, 28.



  Realmling    ( ) ( posted at 11:39AM Thu, 30 October 2008  · @3323917

I'm so glad I came to Rosity today and browsed around....this will greatly help a render I've been working on and just can't get to look "right" with the lighting adjustments I've done a million times.

Many thanks BB!

Crazy alien chick FTW! (yeah....right....)

Realm of Savage - Poser goodies and so much more!


~~

  Miss Nancy    ( ) ( posted at 4:05PM Thu, 30 October 2008  · @3324069

bill, it's very ingenious IMVHO.  I haven't seen this before.

one question - if the figure has got a poser 7.x toon shader applied to its body,
can your lens be adjusted so that it has the effect of adding an edge-blend node
over the toon shader? 

the reason I ask is that this might allow one to combine an edge blend (fall-off shader)
layer over the toon shader (sans lines) to get better-looking line work in poser, without
having to export the raw toon shader render and edge-blend renders to photoshop and
combining them there , with the edge-blend render as multiplying layer over said toon layer.



  bagginsbill    ( ) ( posted at 5:13PM Thu, 30 October 2008  · @3324108

Nope, can't be done.

The lens is like a screen within a screen. You're viewing a picture of what is on that screen. The only information it has to work with is what color is on the screen, and then it gets to modify what that color is.

Any thing like edge detection, blurring, etc. requires that you be able to examine more than one point in the scene. But the lens shader only gets data from one point at a time.

Worse, I have no access to anything but the color of the scene element behind the screen. I can't ask how far away it is, or what direction it is facing, or anything like that. If I could, there are many interesting effects I could do, not just with this lens but with translucent/transparent materials in general. Even better, if I could launch multiple rays of my own, in any direction I wnat, I could implement true subsurface scattering.

The issue of toon lines has come up many times. Even if I could access the edge-blend information of what is behind the screen, it wouldn't help much. I can put a shader directly on the prop and still not do a good job with toon lines. If you could, you'd see better toon shaders already.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  Realmling    ( ) ( posted at 7:12PM Thu, 30 October 2008  · @3324167


This worked wonders! You can actually see the features on the face now (I fiddled with lighting for a full day trying to get it to look right...and was about ready to give up on this image) I think I'll be using this for all my renders now...more addicting than chocolate. ^_~

Though I'm wondering if I need to make any adjustments to my normal render settings? I have one infinite light (white) set to raytraced shadows, and my simple color-based IBL. (can post those too if needed)

Crazy alien chick FTW! (yeah....right....)

Realm of Savage - Poser goodies and so much more!


~~

  dorkmcgork    ( ) ( posted at 8:41PM Thu, 30 October 2008  · @3324193

neato i am trying it now

go that way really fast.
if something gets in your way
turn


  stonemason    ( ) ( posted at 9:51PM Thu, 30 October 2008  · @3324227

hey baggins...can you work with single color channels this way?...say for a faked chromatic aberration effect(by scaling up one of the channels a couple pixels),maybe some vignetting and fish eye lens also

..calling it "Lens" has me thinking of camera stuff :)

Cg Society Portfolio

  bagginsbill    ( ) ( posted at 10:04PM Thu, 30 October 2008  · @3324232

Quote - This worked wonders! You can actually see the features on the face now (I fiddled with lighting for a full day trying to get it to look right...and was about ready to give up on this image) I think I'll be using this for all my renders now...more addicting than chocolate. ^_~

Though I'm wondering if I need to make any adjustments to my normal render settings? I have one infinite light (white) set to raytraced shadows, and my simple color-based IBL. (can post those too if needed)

Hey that really helped, eh? The face is more clearly defined and the hair is just wow in the after picture. That black skin with only some specular is exactly why you need GC. If you added enough light to bring that out, you'd blow out the hair.

I don't think you need to change any settings. Those are good everyday settings. for 90% of all images they work great. You're using RT shadows and simple lighting, one infinite and one IBL.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  bagginsbill    ( ) ( posted at 10:11PM Thu, 30 October 2008  · @3324234

Quote - hey baggins...can you work with single color channels this way?...say for a faked chromatic aberration effect(by scaling up one of the channels a couple pixels),maybe some vignetting and fish eye lens also

..calling it "Lens" has me thinking of camera stuff :)

Hmmm. Chromatic aberration, not with one lens because it only gets to look at one point at a time. CA is a kind of blur and that means integrating data from multiple points in space. I'll have to think about whether or not there is some trick I can do with multiple lenses.

Vignetting and fish eye could be done quite easily.

Remind me over the weekend. I'll look into it. I'll be travelling all day tomorrow (actually sailing) and I'll forget.


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  Realmling    ( ) ( posted at 3:31PM Wed, 05 November 2008  · @3327819

Question - how can you use the lens and still keep more of a "shiny" specular look on certain things? Something added to the alt specular channel on various materials for the figures and such?

The look I got for the full render of the face I posted earlier (Gallery link - there's nakedness too..so don't say I didn't warn ya) was great, and I personally liked how it turned out....just had a thought on like hair highlights and similar such items for future renders.

Don't mind experimenting on my own...just sometimes it's nice to have a jumping off point.

Crazy alien chick FTW! (yeah....right....)

Realm of Savage - Poser goodies and so much more!


~~

  jefsview    ( ) ( posted at 12:56PM Wed, 03 December 2008  · @3345399

So many great and innovative ideas... THANKS!

-- Jeff


  Winterclaw    ( ) ( posted at 5:19PM Wed, 03 December 2008  · @3345578

Tried it out earlier.  Looks nice, but it has some problems with colored lights and you need to do a bit of tweaking and fine tuning if you want to use a background picture...  you have to put it in the refraction node to see it and then you've got to tweak the lens and the node to get it lined up right.

WARK!

Thus Spoketh Winterclaw: a blog about a Winterclaw who speaks from time to time.

 

(using Poser Pro 2014 SR3, on 64 bit Win 7, poser units are inches.)


  bagginsbill    ( ) ( posted at 5:59PM Wed, 03 December 2008  · @3345603

I prefer to put background images on a one-sided square. That way they're real and can be seen by reflections and refractions. When you use the Poser "Background" for the background image, it's like that's what is printed on your "paper" before the render is drawn on it, which has many drawbacks.

What's the issue with colored lights?


Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)

  Winterclaw    ( ) ( posted at 6:14PM Wed, 03 December 2008  · @3345611


Yeah, I'm probably going to have to do that with the backgrounds in the future if I plan to keep using gamma correction.

I had a few blue lights and the shadows became redish.  So I'd almost need to make them white and then colorize things with the HSV filter you were talking about.  I haven't had too much time to go back and tweak things yet as I only did a quick render.  I also noticed what you said about a scene having too muc lights; when adding the filter to the last image I put in my gallery and not doing anything else, the difference was huge.

WARK!

Thus Spoketh Winterclaw: a blog about a Winterclaw who speaks from time to time.

 

(using Poser Pro 2014 SR3, on 64 bit Win 7, poser units are inches.)


  operaguy    ( ) ( posted at 6:25PM Wed, 03 December 2008  · @3345620

My champion workflow for B&W right now is to render out of PoserPro openEXR format. Create an Action in Photoshop to adjust the Exposure/Offset/Gamma and Channel Mixer Red/Green/Blue->Monochrome and then set the mode back to 8-bit.

Apply Action to the image sequence folder through PS Automation.

The power of adjusting an openEXR image in 32-bit mode is wonderful.

::::: Opera :::::


 To create a post you must first sign in or register an account.

Privacy Notice

This site uses cookies to deliver the best experience. Our own cookies make user accounts and other features possible. Third-party cookies are used to display relevant ads and to analyze how Renderosity is used. By using our site, you acknowledge that you have read and understood our Terms of Service, including our Cookie Policy and our Privacy Policy.