Classroom

[Sam75]

A simple test scene to learn Corona.

I used PT + HD cache, rendering time is 20mn with a i72600K.

[andreupuig]

Very convincing light.
It's the straight render from Corona or it has some post?

[Ludvik Koutny]

I think it could look even cleaner, but light passing suspended light shades creates most of the noise...  Whats the material on the light shades? :)

[racoonart]

Very nice!
I guess there's a little postwork here (especially the slight bluish and redish tint).
Increasing (and balancing) pt and light samples could speed up the rendering quite a lot

[Sam75]

Thanks, yes I did some post in photoshop.

Rawalanche, it has refraction glossiness.

DeadClown, I am not familiar with those parameters yet.

[Ludvik Koutny]

Thanks, yes I did some post in photoshop.

Rawalanche, it has refraction glossiness.

I would try translucency instead of refraction glossiness...  could speed things up a bit...  not 100% sure, but so far it worked for me :)

[Sam75]

Ok I ll try that and post the result.

[Ludvik Koutny]

Ok I ll try that and post the result.

Be sure to completely disable refraction and use translucency only, otherwise it wont make much of a difference speed-wise ;)

[Sam75]

There was not a big difference between translucency and refraction + glossiness.

The other way which is using an emitting material is much faster:

Sphere lights + Translucency:

Emitting material:

[Ludvik Koutny]

That makes sense... anyway...  very interesting finding! Thanks! :)

[snakebox]

I like the initial look at and feel, how ever an image like this is waaaaayyy too grainy for any actual production. Simply just not good enough. No client want to showcase any interior that looks grainy, whether its physically correct or not. Id love to see this image after 2 hours instead of 20mins...  I suspect that with low light the grainy-ness won't go away though.

Also has anyone done any successful animation in Corona? without having totally out of proportion rendertimes and still a decent look? im curious :)   keep it up!

[Javadevil]

I like the initial look at and feel, how ever an image like this is waaaaayyy too grainy for any actual production. Simply just not good enough. No client want to showcase any interior that looks grainy, whether its physically correct or not. Id love to see this image after 2 hours instead of 20mins...  I suspect that with low light the grainy-ness won't go away though.

Also has anyone done any successful animation in Corona? without having totally out of proportion rendertimes and still a decent look? im curious :)   keep it up!

I don't think anyone was using these for production renderings :)
It was a simple test, trying different lights and materials.

Keep looking in the gallery, there is some final renders there with times.

Maybe we need a final renders gallery and one for WIP/tests  ?

[Sam75]

More tests

[Sam75]

The forum is compressing the images way too much (most of the noise you see)

[NicolasC]

Nice tests ! well done :)
Is that scene available somewhere for testing ?

Thanks.