OTOY Forums

Hi,


1- I would like to know if there is a quick way to see the caustic's patterns ?

2- What is the physical accuracy of the Octane system with caustics ?

3- Compare to lux render, mitsuga, indigo. Octane is using the same calculation system ?

Thanks in advance.



I checked those but it was 2010.

http://render.otoy.com/forum/viewtopic. ... nterfacing
http://render.otoy.com/forum/viewtopic. ... 2&start=30


ps. Octane needs - undo and OBJ export thank you

There is a setting in the new 1.12 RC called "Paralemism".
It renders slower but prefers caustics.
2. ?
3. Octane use Metropolis Light Transport with Monte Carlo calculation (PMC kernel).
I think Octane is the only GPU rendering engine with MLT support.


Cheers, mib.
EDIT: Use Daylight system if possible, it is much faster with caustics.

Thanks,

What I try to replicate is the work of Thomas Anagnostou- so i will need artificial lights:

http://www.maxwellrender.com/forum/view ... ight=prism

Any suggestions .


By the way the link's file of the dxf filem simplfied prism dxf, is broken.
Any idea where I can get it. thanks in advance.

sorry the link was

http://www.maxwellrender.com/forum/view ... ight=prism

I can get anything realistic without the orginal file, material setting and laser design.
It need long render times, thought.
I post an image later.

Cheers, mib.
EDIT: 8000 Sample PMC parallelism 2
Specular default material seams realy wrong here.

Hi,

thank you for your test.
I guess the power and position of light

I could get the Thomas Anagnostou's dxf file, old. I contacted several forums. For now nothing, I let you know.
I just find this image

I'm gonna be away till wed.16 ap.

Take care

Yep, saw your post in lux forum.
Would be nice to see what Octane can do today, this test was from 2005!

Cheers, mib.

Hi, another test with ies light and dispersion coefficient 0,0035.
I think the angles and a very small light source is important.
But looks also nice.

Cheers, mib.

not an expert but if you make a more longer cylinder an reduce the opening (with light more deaper inside) light would be more "linear" no ? I suggest that as i've made some test with shadows that produce more sharp one with small, powerfull and distanced light source. I realise that it will raise up the render time too, not simple to tweak...