Recent posts

Pages1 2 3 ... 10

Image Sharing / Re: All these worlds...

Last post by raymoh - Today at 01:33:23 PM

The last aeon

This hypothetical Earth-like exoplanet with three moons orbits a sun-like star together with several other planets.
However, the system is 2 billion years older than the solar system.
Since its formation, the parent star has already become twice as bright and is slowly moving out of the main sequence.
Due to the increasing deterioration of living conditions on the planet the higher plants and animals became extinct more than a billion years ago. Only lichen-like life forms can still withstand the current hot conditions on the surface.
The oceans that once existed have evaporated apart from a few small remnants. A few algae-like organisms still survive there.
In the cloudless sky, only the occasional high-flying ice crystal cloud remains.
There is hardly any oxygen left in the atmosphere as most of the oxygen producers have already died out. Due to the increasing radiation pressure of the brightening sun, the atmosphere will probably be completely destroyed in the next billions of years and swept into space.

We are standing at the hot and shadeless bottom of a former ocean and can see former high coastal reefs in the distance.

Image Sharing / Re: Plants

Last post by Dune - Today at 01:59:55 AM

You can easily test that by making two (or three) versions, each with lower MB. I never use more than 8-bit, usually tifs with an alpha channel for opacity around 2000px wide or high (stems/barks are often longitudinal, and may be only 500px wide). I like tifs because jpg's are less predictable when I lower opacity to 0.6 or so for more light in canopies. Unless you need plants for really close-up shots (and then you also need perfect plants), that's enough (for me).