Page 2 of 3

Re: Chelsea Apartment Kitchen

Posted: Mon May 16, 2011 6:51 pm
by Dan_ddd
:o Fletch I didn't realise that :oops: If that is the case then there are thousands more because the embossed lettering on each of the appliances is an emitter as well as the dials....... I will amend my ceiling lights at least that will drop it by a thousand or so :)

Having listened to yours, Unclebim's, Alvydas' advice I have produced a new render with the lighting turned down.

I have spent some time in Gimp trying to give it more depth and warmth. What do you thinK? :) I've had to reduce the size of the images as they were rather large so some crispness has been lost but otherwise I am reasonably happy

I have also shown the original image and the difference made with PP :D

Thanks guys for your advice :^:

Dan

Re: Chelsea Apartment Kitchen

Posted: Mon May 16, 2011 6:54 pm
by Frederik
Please remember, Fletch, that if the purpose of the circle is only to make the illution of a spotlight and the emitting material used is a fake emitter (=not emitting any lights), then it doesn't matter if it has 48 segments or even more...

I often use a similar approach and then place an IES light below the spotlight can and it works great... :)
If I remember correct, you were actually the person teaching me this... :lol:

The important part is that the mesh emitter material is a fake emitter...!

Re: Chelsea Apartment Kitchen

Posted: Mon May 16, 2011 8:21 pm
by Fletch
True, unfortunately that is the case ONLY when fake emitters are employed using Easy 1-8.
In Easy 9 or 10 rendering methods, the Fake Emitter is not possible. It actually emits light.

Either way, they were not set in this scene to be fake emitters.
And, I believe the render method used was Easy 09. ;)

After many many tests, I have determined the most realistic and fastest and reliable way that works with all rendering methods is as I linked above:
Use a single IES spot and put it inside the can far enough where it will light up the inside of the can light.

You can do appliance names in emitters. It's best, keeping in mind the info above, if they are fake emitters and rendered with Easy 1-7 (8 is for exteriors and does not apply here).
If you render with Easy 09, then it would be best to not use them as emitters... unless the difference is crucial to the image. In this case, i would imagine the client would have difficulty appreciating the fine difference, while the rendering budget may suffer. (If comfortable in photo editing, one can easily post-pro the appliance light on)

Again, it works fine as-is, but if you are trying to speed up the rendering, then this is one way to do so. :geek:

btw - Dan - those last images are looking great! :^:

Re: Chelsea Apartment Kitchen

Posted: Mon May 16, 2011 8:53 pm
by unclebim
Dan, here is my run on your render - added LCE and a little Bloom (http://registry.gimp.org/node/6746 - requires Python). It looks more crisp to me.

It turns out though that the eye and brain care more about small scale contrast than large scale contrast. Large scale contrast is that between significant light and dark areas in the image. Small scale or "local contrast" is that between much smaller adjacent areas in the image. (Quote from http://www.luminous-landscape.com)

You made great progress with PP - congrats.

Btw where did the table and chairs go?

Re: Chelsea Apartment Kitchen

Posted: Mon May 16, 2011 9:22 pm
by unclebim
Regarding the supernova effect on the downlights - it is fine in this picture, but the effect itself is not very versatile. You may find these brushes useful: http://www.obsidiandawn.com/light-beams ... mp-brushes. Adjust size and opacity and paint with white color.

Re: Chelsea Apartment Kitchen

Posted: Tue May 17, 2011 5:43 am
by Frederik
I believe the "supernova effect" isn't post pro, but actual light beams from the IES light used in this scene...

Re: Chelsea Apartment Kitchen

Posted: Tue May 17, 2011 5:47 am
by Dan_ddd
Sorry Kim, but they ARE Supernovas done in Gimp..... just very good ones :whoot:

Is it possible to get that effect within Twilight??

Re: Chelsea Apartment Kitchen

Posted: Tue May 17, 2011 5:50 am
by Dan_ddd
unclebim wrote:Regarding the supernova effect on the downlights - it is fine in this picture, but the effect itself is not very versatile. You may find these brushes useful: http://www.obsidiandawn.com/light-beams ... mp-brushes. Adjust size and opacity and paint with white color.
Thanks for this I'll check it out

Re: Chelsea Apartment Kitchen

Posted: Tue May 17, 2011 11:00 am
by Frederik
Dan_ddd wrote:Is it possible to get that effect within Twilight??
Yes... :)
Just use an IES as spotlight...

Re: Chelsea Apartment Kitchen

Posted: Tue May 17, 2011 12:18 pm
by unclebim
Frederik wrote:
Dan_ddd wrote:Is it possible to get that effect within Twilight??
Yes... :)
Just use an IES as spotlight...
Here is a quick test render at Easy 09 with some IES lights (it is fymoro's scene), No. 4 is the default non-IES spotlight. Would you be more specific how to get the sparkle/supernova effect when rendering?