Print at Dec 16, 2025, 12:51:21 PM

Posted by Ceciliabr at Feb 2, 2018, 12:53:54 PM
Re: Tin Can Alley
Also put your bottle through EP simplification procedure (removing normals, adding smoothing), but for some reason that did not work as nicely as expected


In art school I learned that Hi-Res is the key word – both when it comes to sowing and graphics.
They used to call me "the lazy seamstress", since I often used long threads and too much space between my stitches when I was impatient and in a hurry – which was more or less my normal state.
Eventually I gave up fashion-design, and concentrated on photo: "A snapshot is done the minute it's taken", I wrongly assumed.

When you travel on economy, you pay less – and you get less. You are compressed and squeezed into a tiny seat, often in an uncomfortable proximity to people not particularly concerned about their personal hygiene, and there is no room for elbows or legs – a bit like when you compress jpegs; you loose more than you think.

Is it likely that a reflective surface can reflect it's surroundings at a higher quality than the reflective surface itself?

Puybaret asked for a test where the optical density of the water was set to 1.333. He was linking to the same MTL material format-file that I was linking to, which is a sort of a Bible for handling your mtl-files.
Here is the result:



Here is a screenshot:


The Perrier-bottle is full. The other bottles are 2/3 empty.

An interesting phenomena occurs of the bottle on the left, where you can see that the image reflected through the liquid is mirrored – a phenomenon that does not occur with the Perrier-bottle, although the density of the water is the same.

!The reason I use a screenshot instead of a Q1-rendering, is that after the hither/yon settings were reprogrammed some versions ago, the Q1 and Q2 options are no longer as usable as they once were...)



The curving is the crux:
A plane (like f.i. eTeks mirror @ 8kb) can be small, but a curved object weighing 21kb cannot possibly hold the same reflective qualities as a curved object weighing 6240kb.
Look at this:

9 kb vs 56 kb. Already at 6 times better resolution, the quality of the roundness is vastly increased.

I really should be doing more homework.

Me too!
But right now I'm not overly motivated: We opened the window – and in flew Enza!

Thanks for your mail.

Cec.