OTOY Forums

Hi!

Screenshot - PMC setting with 10k-reject, caustic blur 0.01 and parallelism 1:

box fog on left - appear good caustics and box fog on right - insufficient caustics


If the bit ball for laser is inside the box fog then appear easily caustics:


If the bit ball for laser is outside the box fog then appear very hardly caustics.

Therefore, I think the PMC kernel has the bad optimization...

@FooZe: Are you investigating this issue?

Is this issue hard??

NOTICE!!
@FooZe, @admin or @moderator: Do NOT delay to you respond me!!

don't see anything 'bug' like except Your incompetence with render engine, Sorry for straight forward answer.

What You're trying to achieve, Nuno? You want to split the light & see the rainbow spectrum in the fog? =)
my rig is on the road, but I'll give a look into this, 'cos You're messing with this case way too long..
Please, post REFERENCE image of what You want to get.

glimpse wrote:don't see anything 'bug' like except Your incompetence with render engine, Sorry for straight forward answer.

What You're trying to achieve, Nuno? You want to split the light & see the rainbow spectrum in the fog? =)
my rig is on the road, but I'll give a look into this, 'cos You're messing with this case way too long..
Please, post REFERENCE image of what You want to get.

About rainbow - I did never enable the dispersion for fog. - But it used for?

Reference image - for example:

I think you need to at least understand the basic physics behind these phenomena before trying to tackle these effects.

First of all, the image you posted looks to be light coming from a projector, so the source of the light is multicoloured, it's not being split by another medium. Secondly, fog is nowhere near dense enough a material to split light. It has to travel through something like glass or diamond, and at an angle no less, if you want to see the spectrum of light come out the other end.

Daniel wrote:I think you need to at least understand the basic physics behind these phenomena before trying to tackle these effects.

First of all, the image you posted looks to be light coming from a projector, so the source of the light is multicoloured, it's not being split by another medium. Secondly, fog is nowhere near dense enough a material to split light. It has to travel through something like glass or diamond, and at an angle no less, if you want to see the spectrum of light come out the other end.

Ok. The light source (laser) multicoloured isn't needed but yes it's a example. The disperison is for prism or diamond only.

How do I fix my issue? Newer version of OR?

Please you respond me!

Do NOT delay to reply!!!!!