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bepeg4d wrote:Hi,
i have used the easter vacations for rendering the PMC version of the pool as promised, here is the result after 19h:52':24" for 16000 sampling:

and here is the PT version with the same settings and sampling level but in 04h:23':37":

r-Fish-eye2-giano-PT-02n.jpg

and here is what happen under water in PMC:

underwater.jpg

Thank you! PMC is clearly better option. But 16,000 samples/px isn't good enough because the caustics are darker and/or more noise than real-life.
For your 1920x1080, minimum 40 to 60 kS/px for very good caustics, sorry.

Minimum samples per pixel for very good caustics (no "caustic blur") at 5k rejects and parallelism 1, if your scene is running sun light (our solar system):
--> 1002x602 pixels: 150 to 200 kS/px
--> 1920x1080 px: 40 to 60 kS/px
--> 3840x2160 px: 10 to 15 kS/px
...

Can you understand well?

more than 24h is not an option for me
if i have time i prefer to render the PT version for the same ammount of time of the PMC version for a better comparison
but is difficult for me to find the time for this, i think
ciao beppe

p.s. the scene is lit with a modified HDR.

Ok. But if the sun size is "thin" (=real) then PT makes very hardly good caustics.

I had rendered image during 73 hours (3 days but few pauses with hibernate (Windows)) at PMC kernel but it's normal. - I've sent to PM.

bepeg4d wrote:more than 24h is not an option for me
if i have time i prefer to render the PT version for the same ammount of time of the PMC version for a better comparison
but is difficult for me to find the time for this, i think
ciao beppe

p.s. the scene is lit with a modified HDR.

Very nice work. Thanks for sharing results. Do you mind sharing the settings for the fisheye-box as well as the camera adjustments.
So far we gather that the material is specular and added to a 10x10x1 box/plate that's placed before the camera.
Adjustment to IOR and focal length along with dispersion to get the real lens look.

Tugpsx wrote:Very nice work. Thanks for sharing results. Do you mind sharing the settings for the fisheye-box as well as the camera adjustments.
So far we gather that the material is specular and added to a 10x10x1 box/plate that's placed before the camera.
Adjustment to IOR and focal length along with dispersion to get the real lens look.

hi tugpsx,
sure, i wiil prepare an orbx to shere as soon as i can
ciao beppe

hi,
here is a fisheye lens scene in c4d, ocs and orbx format.
in standalone you need to copy the camera position in the placement node of the glasslens or use the marcus Lua script for the foggy inverted sphere. With an integrated plugin it's more easy and you can navigate the scene with fisheye in real time
ciao beppe

bepeg4d wrote:hi,
here is a fisheye lens scene in c4d, ocs and orbx format.
in standalone you need to copy the camera position in the placement node of the glasslens or use the marcus Lua script for the foggy inverted sphere. With an integrated plugin it's more easy and you can navigate the scene with fisheye in real time
ciao beppe

thanks for sharing mate.

cheers
resmas

Thanks more new toys to play with

Thanks for this. One question - is there any way to remove the small cube from appearing in reflections on other objects, while still being able to retain the fisheye effect?

Are you referring to the mesh light? Light source can be adjusted