I did a long run over View 2.
73 hours with the 80% of the machine (heating problems in my PC, is not indigo...)

Is amazing the amount of light that rest with time.

Second view over O-SS, seems that the difficulty to change the perspective is not so high...
Some scatters more. Must rectify some things for a more organic look...

I opened two months ago a work in progress thread in the Houdini forums called too "synthetic photography".
Sadly is a little late for a promotion of indigo, ...or not?.

https://www.sidefx.com/forum/topic/93587/

Pr ö t ö Studies O - SS. Zenith 73º. Canon EF 24 mm. 6K downsized to 3K. 35 hours. Final render. Will fix more things in the nexts shoots... Seems that if atmosphere has precedence 1 the bug is less present. Black and white development SIlver Efex, Kodak Panatomic X. Color development of the image ...

I can´t hate vignetting, is a serial element of the simulation.
Camera with double diaphragm that accentuate the effect...

At last I´m learning to develop the linear tonemapped EXR... 1 Correction of distortion in Darktable. Profile: Canon full frame 35 mm camera (?), objective Canon EF 24 mm II USM. Horizontal flip. Output in png 16 bit (I can´t find another format that export the tones correctly). darktable.jpg 2 Proc...

A study with singular clouds... Near to launch the final serie. In this case there are only the textures of the vegetation, and could be substitute for plane colors for this perspective. Is a so little lie that I allow it. The fundamental thing is that there is no an "environment map" and there is n...

The bug is present only with atmosphere simulation...
Investigating...

10 hours. There are some problems with singular clouds (dark borders). Here you can see what happens with an IOR 1.0, 0 absorption and 0 scattering. For a null material seems OK. Is a bug. Now I understand why the light is sometimes modify with a cloudsbox... Solved, a normal(phong) tag gives proble...

These are the ilumination possibilities for clouds, atmosphere and mie cumulus that I talk about. No noise. SS 4. 6K. Protostudies O-SS, View one. Two accidental shutdowns of power in the PC. 20 hours. 30 hours. Probably I will go deeper more over. In version 4.6.0 and upper, the light direction of ...

ÄÜ H. Let´s process this one! Some things solved. When the mesh to scatter has more than 3.3 millions of polygons and a subdivision is setted, the scatter goes wrong. A clarify piece of code for the trees scattered (modulation). The no-clouds space of the clouds box has a bit of absorption and scat...

Other fight is the develop of the tonemapped EXR. There are some LUT that camoflage the optic noise a lot, there are some beautiful ones. But It is better for me to take the EXr from a linear profile and perform some minor things like curves, exposure, ... little things. 12 hours. Is quite good for ...

Sigma 56mm, F-stop 16, 8K, 43 hours, 1500 spp. Aperture difraction of the silver seeds present. I´m not agree with the human blood material, reflexions in the specular material are too weak and SSS is too dense (or the real tabulated absorption of the hemogobline is out of range...). The displacemen...

20 hours, 650 spp.
8K downsized to 4K.

Is OK, but I will leave it 50-60 hours, will see. Amazing visual search!

If this difference is appreciable with uniform absorption and cauchy, just imagine with the complete real tabulated spectrums of the lenses and coatings.