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Re: Simple Renderings Thread

Posted: Mon Feb 08, 2010 6:38 am
by Latetzki
Godzilla wrote:Quote by Pibuz, image by Suvakas.

Basically "exit portal" is a simple shader which assigns no physical properties to the surface which is applied to: it only acts as an "open window" to the environment.
Let's make it clearer. In you render the sky is all around your geometry. An exit portal placed in the right place could just "erase" all the light of the environment EXCEPTED the one which enters your room through the door. This will really speed up the convergence of your image: you won't have more samples per pixel, as far as I know, but you'll get to have less noise in a same amount of time.

You're wondering how to use such a fantastic tool?
Just model a rectangle outside the window. Make sure that it covers the entire hole you cut in the wall to host the window. Assign a colour to that rectangle, and make it an EXIT PORTAL through your application's plugin. Done!
Image
Should the rectangle have eight edges or four?

Re: Simple Renderings Thread

Posted: Mon Feb 08, 2010 6:48 am
by Godzilla
Doesn't matter. You can have as many exit portals as you need in any shape you need, just make sure the normals are facing towards the camera. :wink:

Re: Simple Renderings Thread

Posted: Mon Feb 08, 2010 10:21 am
by pixie
ceramic.png
Ceramic piece
ceramic.png (326.32 KiB) Viewed 3757 times

Re: Simple Renderings Thread

Posted: Mon Feb 08, 2010 10:32 am
by Soup
Thanks for those images and text Godzilla, added to the manual ;)

Re: Simple Renderings Thread

Posted: Mon Feb 08, 2010 10:33 am
by Godzilla
Soup wrote:Thanks for those images and text Godzilla, added to the manual ;)
Don't thank me, thank Pibuz and Suvakas.

You re-worded it, I hope? :wink:

Re: Simple Renderings Thread

Posted: Tue Feb 09, 2010 7:30 am
by Latetzki
Custom AK-47s Kalašnikov with Silencer. I did that in about 2 days. Render took ~2 hours.

Image

4 hours later...

Image

Re: Simple Renderings Thread

Posted: Tue Feb 09, 2010 12:16 pm
by ieatfish
Here is one I just did to mess around with some materials. Anyone have any tips on how to make the sphere's more spherical? Any other input?

Image

Re: Simple Renderings Thread

Posted: Tue Feb 09, 2010 12:27 pm
by Borgleader
Increase the subdivision amount? Or wasnt there a "built-in" sphere primitive?

Re: Simple Renderings Thread

Posted: Tue Feb 09, 2010 1:20 pm
by ieatfish
Borgleader wrote:Increase the subdivision amount? Or wasnt there a "built-in" sphere primitive?
I had just grabbed the sphere from google's warehouse. So it was already pretty low quality.

Re: Simple Renderings Thread

Posted: Tue Feb 09, 2010 1:27 pm
by Godzilla
Try increasing the subdivisions in Skindigo.

Re: Simple Renderings Thread

Posted: Wed Feb 10, 2010 12:48 am
by ieatfish
Subdivisions didn't change much though I was probably doing it wrong. I ended up finding a higher quality sphere. The balls from small to large are glass, red wine, wax. Cooked overnight to remove noise but was 'good enough' after an hour or so.
Test3.png
Test3.png (445.96 KiB) Viewed 3466 times

Re: Simple Renderings Thread

Posted: Wed Feb 10, 2010 6:34 am
by fenerolina
ieatfish:
There's a free plugin in SkUp called sphere tool that allows you to draw spheres in a plis plas: Once installed, select it in "draw" and before drawing it input/increase the number of segments..

Re: Simple Renderings Thread

Posted: Wed Feb 10, 2010 6:45 am
by Zom-B
ieatfish wrote:Subdivisions didn't change much though I was probably doing it wrong.
You could also use the Indigo Subdivision feature with rounding activated, this should help here too :)

Re: Simple Renderings Thread

Posted: Wed Feb 10, 2010 7:47 am
by ieatfish
fenerolina wrote:ieatfish:
There's a free plugin in SkUp called sphere tool that allows you to draw spheres in a plis plas: Once installed, select it in "draw" and before drawing it input/increase the number of segments..
I found one of those tools but every time I would go over 30 faces or whatever the setting is I would get open circles on the top and bottom. It wouldn't finish the sphere. :|

Re: Simple Renderings Thread

Posted: Wed Feb 10, 2010 8:51 am
by Whaat
Make the sphere object a 'component' and rename the definition to 'IndigoSphere'. Then, SkIndigo will export a perfect sphere primitive. The sphere will use whatever material that is applied to the component instance, not the material that is applied to the faces. If you have more questions about this, send me a PM. :)