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Poser - OFFICIAL F.A.Q (Last Updated: 2024 Nov 24 8:11 pm)
Subject: Creating bioluminescence with P6 shader nodes?
OK, I'm doing something really wrong because I'm not getting anything like these samples. Can someone please explain "Gathernode for dummies?"
http://schuetzenpowder.com/sigs.jpg
svdl posted this earlier in this thread to help me:
Quote - OK, here we go. Let's start with something simple, a ball and a box. We're going to make the ball glow and the box will catch the glow.
Start a new empty scene and create a ball prop and a box prop. Put the ball on top of the box.
The ball will be the light emitter. Set its ambient color to something else than black, and the ambient value to 1.
The box will be the light receiver. Connect a Gather node to its ambient color channel, make sure that Max Distance is large enough (from each point on the box a ray should reach past the ball), set the ambient value to 1.
Delete all lights. Enable raytracing and render.
Hope this helps,
Steven.
I also suggest that you look for my post in this thread where I post a screenshot of my material room. Then read the next few posts down from that. Try doing the same thing I had done, using a ball and a box.
"It is good to see ourselves as
others see us. Try as we may, we are never
able to know ourselves fully as we
are, especially the evil side of us.
This we can do only if we are not
angry with our critics but will take in good
heart whatever they might have to
say." - Ghandi
Content Advisory! This message contains nudity
http://schuetzenpowder.com/sigs.jpg
Just a note to everyone entering 'bookmarks'.... if you don't want to add anything to the thread, you can (now) just click on the 'subscribe' link, just above the place you type in the message. This will save tons of ebots going out when someone is just bookmarking.
Cheers,
Keith
p.s. "bookmark" :).
Cinema4D Plugins (Home of Riptide, Riptide Pro, Undertow, Morph Mill, KyamaSlide and I/Ogre plugins) Poser products Freelance Modelling, Poser Rigging, UV-mapping work for hire.
Anton! If you are still watching this thread...This link is dead, could you send a new one??? Please.....
Attached Link: P6 Lighting without Lights
Sure. I was just playing with lighting effects
ThanX!
Ariana
Is there water in your future or is
it being shipped away to be resold to you?
Water, the ultimate
weapon...
www.futurefantasydesign.com
I assume that Poser 7 will have this option also? Anyone know if it'll be better?
http://schuetzenpowder.com/sigs.jpg
Attached Link: P6 Lighting without lights
> Quote - Anton! If you are still watching this thread...This link is dead, could you send a new one??? Please..... > > > Attached Link: [P6 Lighting without Lights](http://www.renderosity.com/messages.ez?Form.ShowMessage=2222447)I'm not Anton, but I can help
The new thread is here
For the future, if you need to read a thread from the old system into the new, take the old url:
http://www.renderosity.com/messages.ez?Form.ShowMessage=2222447
take the part in red, up to the = sign, and replace it with http://www.renderosity.com/mod/forumpro/showthread.php?thread_id=
So the new url is http://www.renderosity.com/mod/forumpro/showthread.php?thread_id=2222447
Quote - I assume that Poser 7 will have this option also? Anyone know if it'll be better?
Yes and yes. Gather in P7 can also use the irradiance cache, just like AO (see Reason #4). In English, this means that you have a slider in the rendering prefs with which you can make it less grainy and render a lot faster through interpolation.
Yes, this is a great thread! I wasn't able to take full advantage of it before but now that I have a new computer I'm hoping that I can now.
"It is good to see ourselves as
others see us. Try as we may, we are never
able to know ourselves fully as we
are, especially the evil side of us.
This we can do only if we are not
angry with our critics but will take in good
heart whatever they might have to
say." - Ghandi
I got the ball and box to work ok, and the ball and floor but I just can't get the gather node to work on a model. Something I'm not doing right, I'm sure, but I'll keep playing with it.
I, also, can't get it to work at all in P7.
Hugz from Phoenix, USA
Victoria
Remember, sometimes the dragon wins. Correction: MOST times.
Quote - I got the ball and box to work ok, and the ball and floor but I just can't get the gather node to work on a model. Something I'm not doing right, I'm sure, but I'll keep playing with it.
I, also, can't get it to work at all in P7.
I actually had it working in P7. I got Nybras to give off an aura that looked pretty cool.
Maybe if you post a pic of your shader tree someone can help you out?
It'd be great if someone could make put this wonderful work into practice and upload the resulting material to the freebies section.
I'm going to have a swing at this myself on the weekend. If I manage to crack this nut I'll be happy to save and share the resulting material. If not, I'll be back and begging for help!
If we can hit that bullseye, the rest of the dominos will fall like a house of cards...checkmate!
Can you tell me how you achieved that effect?
Where did you plug in the gather node and how did you get it to illuminate on those body parts? Did you have to connect a gather node for each part of the body you wanted to illuminate?
Perhaps a screenshot of your material room would help? hint
"It is good to see ourselves as
others see us. Try as we may, we are never
able to know ourselves fully as we
are, especially the evil side of us.
This we can do only if we are not
angry with our critics but will take in good
heart whatever they might have to
say." - Ghandi
Quote - I got the ball and box to work ok, and the ball and floor but I just can't get the gather node to work on a model. Something I'm not doing right, I'm sure,
Ditto that!
I got the ball on the box but that's all I've been able to achieve with this.
I want to know how you get it to illuminate on an actual figure such as a mage holding a ball of light where the light would obviously be illuminating the mage's body.
"It is good to see ourselves as
others see us. Try as we may, we are never
able to know ourselves fully as we
are, especially the evil side of us.
This we can do only if we are not
angry with our critics but will take in good
heart whatever they might have to
say." - Ghandi
I haven't tried this one myself, but I guess the gather node has been attached to all materials of the mage, probably the Ambient input, while the magic effect has a high ambient value.
The pen is mightier than the sword. But if you literally want to have some impact, use a typewriter
What confuses me is do I connect the gather node to the Diffuse Ambient channel of the item I want to glow... or do I connect the gather node to the item I want the glow to be on.. IE: V3's skin texture... or do I connect a gather node to all of it (Item I want to glow plus V3's skin texture)?
Whatever I have been doing doesn't seem to be working.
"It is good to see ourselves as
others see us. Try as we may, we are never
able to know ourselves fully as we
are, especially the evil side of us.
This we can do only if we are not
angry with our critics but will take in good
heart whatever they might have to
say." - Ghandi
Ooops. I meant to say "Alternate Diffuse" channel instead of "Diffuse Ambient"
"It is good to see ourselves as
others see us. Try as we may, we are never
able to know ourselves fully as we
are, especially the evil side of us.
This we can do only if we are not
angry with our critics but will take in good
heart whatever they might have to
say." - Ghandi
Here's a screenshot showing V3's SkinHead material with the gather node attached, and a render with a ball with ambience.
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If you're joking that's just cruel, but if you're being sarcastic, that's even worse.
Thanks! I think you unconfused me, hehe
"It is good to see ourselves as
others see us. Try as we may, we are never
able to know ourselves fully as we
are, especially the evil side of us.
This we can do only if we are not
angry with our critics but will take in good
heart whatever they might have to
say." - Ghandi
Quote - Can you tell me how you achieved that effect?
It's been a while since I did that pic. It was done on a retired computer and I have lost the file, so I cannot provide a screen-grab. I believe a good starting point is modus0's settings. Experiment with the Gather settings. The Gather must be attached to each body part.
Using Gather was so slow, at least when it was first added to Poser, that I gave up using it. Maybe in P7 with my new computer I can get speedier results!
Quote - Thanks! I think you unconfused me, hehe
No problem.
I myself am trying to see if it's possible to have a glowing tattoo on a figure and have the gather node attached to that same material zone glowing as if the tattoo is really shedding light.
So far I've discovered that I need some way to invert the gather effect, which itself has been inverted because of how I did the tattoo effect.
________________________________________________________________
If you're joking that's just cruel, but if you're being sarcastic, that's even worse.
I've had allot of fun playing with this.
My only problem now is thinking of a way to incorporate it into a 'final' image. There are only so many dark magician images you can make! :)
It's unfortunate the colour gathered is so sporadic. If it weren't for the resulting 'noise', the node would be much more useful.
Very cool none-the-less.
If we can hit that bullseye, the rest of the dominos will fall like a house of cards...checkmate!
IIRC, changing the numbers for the node changes what kind of look you get.
A very high sample will generate a more solid "illumination" closest to the "illuminator", although that will slow the render down significantly.
CastlePoser has a nice 2-part tutorial on the gather node (among others) that's fairly explanaory.
________________________________________________________________
If you're joking that's just cruel, but if you're being sarcastic, that's even worse.
And I've got a scene in my gallery with a skeleton and glowing eyes.
You can also do things like luminescent aliens (ala The Abyss), or radioactive individuals.
________________________________________________________________
If you're joking that's just cruel, but if you're being sarcastic, that's even worse.
It is also good for lighting up lamps too. Anton posted a wall sconce in another thread where he used this technique and it actually looked like the lamp was really lit and casting light on the wall.
"It is good to see ourselves as
others see us. Try as we may, we are never
able to know ourselves fully as we
are, especially the evil side of us.
This we can do only if we are not
angry with our critics but will take in good
heart whatever they might have to
say." - Ghandi
This image, I used gather nod (Floor, walls..except for the wall on the right of image) and two infinites, to light outside of this MechHanger building in helping bring light into a room. This render took two hours, and was worth it in learning how to use this nod. Wonder if P7 is better on the "gather" nod or both P6, P7 the same?
No, I did figure out how to have tattoos look like they're glowing, by plugging a separate texture for the tattoo into the second value of a math function node set to subtract which is in turn plugged into the ambient color.
Getting it to work with the gather node is going to take some investigating, which makes it one more thing I've got on my plate that I'd like to get done.
If it can be done at all.
________________________________________________________________
If you're joking that's just cruel, but if you're being sarcastic, that's even worse.
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hmmm.... Renaissance with bioluminescence... an interesting thought... ;) jonthecelt