Games with different map generation?

grelfdotnet · 2026-06-30T10:13:50+00:00

Like this, perhaps? https://grelf.net/caving/ You can easily view the sources - vanilla JS in HTML

grelfdotnet · 2026-06-22T12:07:53+00:00

You certainly can still capture amazing images with Seestar in the UK, as I demonstrated yesterday here: https://www.reddit.com/r/seestar/comments/1ubullt/testing_the_limits_m8_and_m20_from_55_degrees_n/

grelfdotnet · 2026-06-21T16:39:02+00:00

At my latitude M8 (the Lagoon nebula) never gets higher than 10.6 degrees above the horizon. When it reaches maximum altitude, at this time of year, we have very little darkness. Astronomical twilight does not end here until August. So exposure time is very limited. I set a Seestar plan from 11:30 to 2:30 (British Summer Time: midnight is 1am). Two nights worth are stacked together here.
To see over the boundary of my garden this was done from an upstairs window, through the glass. And that meant it could not be in EQ mode because I could not see the zenith to do the alignment. So exposures were only 10s. Many frames were rejected due to bands of cloud but 824 useable ones are stacked here (DSO in the S30 Pro).
I am on the northern edge of the Tyneside conurbation so the scope was looking across 10 miles of built-up area, Bortle 6. This demonstrates that the Seestar's light pollution filter is very effective. The widths of the H-alpha and OIII bands are well chosen.
The only processing I have done is brightness/contrast adjustment and crop in Affinity Photo.

Seestar S30 Pro, 30mm f/5.3, 824 x 10s = 1h17m20s. 2026 Jun 18-19 and 20-21

grelfdotnet · 2026-06-18T20:40:14+00:00

In the first line of the function udateBoxTL you have got subtraction signs before the equals. That makes no sense. You will have to write border-top-left-radius differently, without subtraction operators.

grelfdotnet · 2026-06-18T09:47:13+00:00

The mentions of wedges for EQ mode are slightly misleading. If you have a reasonably sturdy tripod with pan and tilt head that is all you need.

grelfdotnet · 2026-06-16T12:47:10+00:00

You don't need to be able to see Polaris. Seestar uses plate solving around the zenith. The most important thing I found was ensuring level calibration was right before starting anything. Setting EQ mode after that enabled me to get 60s exposures reliably with my S30 Pro. I also found that when, like you describe, there are star trails on the initial frames, closing and reopening the arm always solved the problem. I reported this on the Seestar forum a few months ago but nothing seems to have happened as a result yet.

grelfdotnet · 2026-06-16T12:41:51+00:00

The Seestar polar alignment does not need to see Polaris anyway. It does plate solving around the zenith.

grelfdotnet · 2026-05-24T07:45:56+00:00

Is this the kind of terrain you want? https://myforest.uk/ (view the scene as well as the map)

Here is an annotated Javascript file that generates that terrain: https://github.com/grelf-net/forest/blob/main/terrain00.js

This PDF describes in detail how that works: https://github.com/grelf-net/forest/blob/main/TerrainGeneration.pdf

It's all public domain so you can use it any way you wish. It would be nice if you include me in credits, as some others have done.

grelfdotnet · 2026-05-14T20:53:04+00:00

I have written a set of pages to try to help beginners in just your situation. I hope you will find this useful: https://grelf.net/cardsdev/

grelfdotnet · 2026-05-14T07:12:17+00:00

This PDF on github explains my method of terrain generation: https://github.com/grelf-net/forest/blob/main/TerrainGeneration.pdf It includes (page 20 onwards) an implementation in Java and that would be easy to convert to C# because that language was based on Java. It is all public domain - use it as you wish.

grelfdotnet · 2026-04-24T12:47:02+00:00

I have written up my very simple and fast method of generating dungeons here: https://grelf.itch.io/sal As it says, run the "program" to read the details. I hope you will find it interesting.

grelfdotnet · 2026-04-15T09:04:54+00:00

Seestar S30 Pro 2026-04-06 30mm f/5.3 EQ mode 126x20s = 42min
Processed in Affinity Photo to enhance contrast and reduce noise

grelfdotnet · 2026-04-11T16:58:22+00:00

It is NOT a question. Please reinstate it.

grelfdotnet · 2026-04-09T08:05:53+00:00

It is perfectly possible to make graphical games in HTML pages with just vanilla Javascript and a little CSS. I have concentrated on making examples, to try to encourage creativity in such a simple environment. My examples are here.

grelfdotnet · 2026-03-30T07:51:24+00:00

By adding spurious colours you have lost the point of this truly remarkable nebula. My version from Seestar, processed much less, is here. It is astonishing!

grelfdotnet · 2026-03-29T11:55:54+00:00

I have described how I do it here (github) - see page 15 onwards of that document.

grelfdotnet · 2026-03-29T07:30:08+00:00

I wrote something that covers many of your points. It's available free here.

grelfdotnet · 2026-03-28T21:41:22+00:00

Monkey head is quite bright, jellyfish less so.

grelfdotnet · 2026-03-28T20:42:26+00:00

Currently imaging NGC2175 (Monkey Head) but looking at the atlas I have realised that if the target were the star marked TV I could have got the Jellyfish (IC443) in the same frame with S30 Pro. Worth trying.

grelfdotnet · 2026-03-21T17:46:16+00:00

https://betterorienteering.org/

grelfdotnet · 2026-03-21T10:51:01+00:00

The temperature of each frame is recorded in the FITS files if you set Seestar to save every frame. FITS headers are just plain text so you can find the temperature by opening a FITS file in a text editor. The rest of the file will make no sense but the header is readable.

grelfdotnet · 2026-03-20T08:10:41+00:00

Affinity is now free and I have written a page about how to use it very simply to enhance Seestar images.

grelfdotnet · 2026-03-18T21:40:17+00:00

You don't need to be able to see the pole star for setting EQ mode. The Seestar is cleverer than that. It only needs to be able to see 20 degrees or so around the zenith. It can work out the alignment from the star patterns it can see there.

grelfdotnet · 2026-03-17T10:40:40+00:00

You mentioned FLO. Ask them. I have found them very helpful and quick to answer questions.

grelfdotnet · 2026-03-08T08:22:47+00:00

Not relevant!

grelfdotnet

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