Hi Zii, thanks so much for the feedback… I still have a lot to learn and there are still some issues I need to sort out but in general I can say it’s coming up pretty well, and your comments are really motivating.
These were the settings I used:
It’s rendering on CPU, full HD (1920x1080 - 100%) resolution, color depth 8 - 15% compression,
Samples - I rendered 160 at sampling presets but I did not specified “Final” and if I had chosen it, I’d have seen that the render goes down to 24… I’was just doing that rendering at 64 now with a color depth value of 16 and it was taking ages…
At 32 samples with 16 color depth I still can notice some withe spots.
And then you tip reminded me of something: because I use a very reflective surface (the ocean is animated but that is not noticeable here) the Light Paths can make a whole lot of difference, the first rendering settings were:
Max and Min-8, a tick on Shadows, Reflective Caustics and Refractive, filter glossy - 0; Bounces Max-12, Min-3; Diffuse and Glossy-4; Transmission-12 and volume-0;
Here is the result with 48 samples, 16 color depth AND Limited Global Illumination:
Max and Min-8, a tick on Shadows and Refractive Caustics (not on Reflective, filter glossy - 0.6; Bounces Max-8, Min-3; Diffuse-1, Glossy-4; Transmission-8 and volume-2;
Came out just fine. A much bigger file size but better quality and rendering time quite acceptable.
Thanks for the clue, Zii.