Shadertoys screensaver: clock displays wrong time

Help and Support Raspberry Pi
1

Hi,

I love shadertoys as a visualization, and use a random screensaver. I noticed that on my (German) time settings, the analog clock screensaver displays the time one hour early (i.e. it is 5 pm here, and the shadertoys clock shows 4 pm).

Is that a known bug? Which time is used for the visualization? OSMC itself displays the right time of course.

2

Possibly daylight saving time related?

3

Yes, that was exactly my thought, but why does this happen? Why does shadertoy not use the time displayed by Kodi?

4

If you ssh in to OSMC and run “date” what time does it report?

5

osmc@osmc2:~$ date
Sun Apr 24 10:54:04 CEST 2016

Shadertoys displays 09:54

6

Hmmm. Shadertoy calls “localtime” which should get the correct timezone.
Can you try:

wget https://dl.dropboxusercontent.com/u/3669512/temp/localtime
chmod +x localtime
./localtime

and report what it returns?

7

I have noticed that the hour…ehm dial(?) is not really in the correct place it is almost as if it is one hour behind, if you know what I mean… :slight_smile:

8

localtime reportes the correct time. I will take a closer look, maybe it’s just a problem drawing the clock dial correctly, but it definitely looks to me as if it wants to display an hour earlier.

Edit: I just looked at it closely, and it seems that the hour-finger only moves at full hours, which is definitely not what a “real” analog clock does. It shouldn’t be too hard to move that little finger by 30/60 = 0.5 degree per minute, is it? :wink:

9

I just caught this. It was 6:55pm and the clock looked like five to six.
At 7:05pm the clock looked like 7:05pm.

So I don’t think it is time zone related - just how that particular shader rounds the hours.
I seem to recall there was an option (in the code) for the second hand to be discrete or continuous.
I suspect the continuous form wouldn’t have this issue. I’ll look into it.

Edit - yes, avoiding the truncation on hours improves the behaviour.
Will push an update soon.

10

Can you tell me if I can try and upgrade it? Or is it automatically updated?

11

If you know what you are doing, then:

float hors = mod( floor(iDate.w/3600.0), 24.0 );

Remove the “floor” word. Otherwise wait and it will auto update when I next push.

12

Is this okay now? I pushed an update a few days back.

1 Like
13

How can you get the Update? Same Problem, isnt it automatically updated with osmc updates?

14

Should update automatically. Latest version is 1.0.10.
You can also force a check for updates: http://kodi.wiki/view/add-on_manager#Update_options

15

So this is fixed now? - YouTube
The hour dial should gradually move towards next hour mark!

16

Yes, that issue is fixed on 1.0.10.

17

Awsome!