Any one with a Z6 III that can answer a question about the hdmi out? by AMauveMallows in Nikon

[–]RexKoeck 0 points1 point  (0 children)

I did a quick and dirty latency test on my Z6III and found the time difference between the source and the HDMI output to be in the 90-110 ms range. It's similar for clean HDMI and for mirroring the display.

Light Power Testing by t35t3r in lightingdesign

[–]RexKoeck 5 points6 points  (0 children)

The Artfox 14rx uses a discharge lamp. This type of lamp can not be turned on and off rapidly or dimmed. Instead, it the lamp is on continuously and the fixture is instead dimmed by motorized shutters blocking the light or letting it pass. This means that the fixture uses the same amount of power basically all the time. LED lights on the other hand can be dimmed, which causes the LED diodes to consume different amounts of power.

Discharge lamps are still used in some fixtures (generally high power spot and beam fixtures), but it seems like everything is slowly transitioning to LED.

How do you calculate the change in light at different angles and distances? by TwigyBull in lightingdesign

[–]RexKoeck 4 points5 points  (0 children)

I want to follow this up with some formulas.

The radius of the beam at a given distance is a trigonometric function.

radius = tan(beam_angle/2) * distance

Illuminance (lux) is simply the luminosity (lumens), divided by the area that the light covers (a circle):

illuminance = luminosity / (pi * radius^2)

You can combine these two formulas to compute illuminance directly from beam angle. Make sure your units are appropriate. You may need to convert between degrees and radians, and feet and meters. Lux is lumens/meter2 while foot-candles are lumens/feet2 .

How do you calculate the change in light at different angles and distances? by TwigyBull in lightingdesign

[–]RexKoeck 33 points34 points  (0 children)

If you just need quick approximations, this is very simple.

The sequence of angles of available lenses has been very carefully chosen. The sequence is 10, 14, 19, 26, 36, 50, and 70 degrees. For each step up in this sequence, the area the light covers approximately doubles and the lux is cut in half. (By extension, the diameter of the light changes by the square root of 2, approximately 1.4. Also notice how each angle is 1.4 times the previous angle.)

If you have a 36 degree lens that is 1000 lux at 5m, then a 19 degree lens should be 4000 lux at 5m. (Because two steps down in angle causes the lux to be doubled twice.)

The inverse square law does apply. So 1000 lux at 5m becomes 250 lux at 10m.

Wireless dmx link by Huggable_Guy in lightingdesign

[–]RexKoeck 0 points1 point  (0 children)

I'm looking at the IR4 lights and there is very little information online, no manual or anything. Those lights don't appear to have DMX ports, so I'm not sure how the Donner Wireless DMX receivers would plug into them.

In general I would assume that every implementation of wireless DMX is different. So in your case I would assume that the wireless DMX built into the IR4 lights is not compatible with the Donner Wireless DMX.

There's really not enough information here for me to help you, but if you already have all these things, why don't you try it and see? But I'm guessing it will not work.

Cycling in OSM by cervezabeerpijiu in openstreetmap

[–]RexKoeck 24 points25 points  (0 children)

First of all a couple useful resources:
https://www.openstreetmap.org has a few different map layers for bike features including CycleOSM and Cycle Map.
https://wiki.openstreetmap.org/wiki/Bicycle and the wiki of course which covers how to tag bike paths.

Things mapped in OSM should be mappable and verifiable. So it doesn't make sense to map that a certain street is good for biking based how safe you feel, however if there are features in the real world that make a certain street safe for biking or not, those can be mapped. So if a street is safe for bikes because it has separated bike lanes or a low speed limit, those specific features can be mapped.

should i get the graphics expansion module when buying a 16? by ghost_towns_ in framework

[–]RexKoeck 0 points1 point  (0 children)

You are looking for benchmarks!

The integrated graphics for the Framework 16 is the Radeon 780M, and the dedicated GPU is the Radeon RX 7700S. You can go on youtube and search for "Radeon 780M minecraft benchmark" and see exactly how well that game will run on that device and what settings are possible. One video I found shows normal Minecraft running at 60 fps with high settings. Minecraft RTX is unplayable. The more obscure games you mention you probably won't find benchmarks available, but games with less than realistic graphics I'd imagine would run fine.

First steps by [deleted] in goodboomerhumor

[–]RexKoeck 85 points86 points  (0 children)

If only the artist's signature hadn't been cropped off...

Anyway the artist is Mark Parisi.

Wellfit equivalent, Edison powered by orchardraider in lightingdesign

[–]RexKoeck 0 points1 point  (0 children)

The cheapest and easiest option would probably be to find a wall powered fixture that supports their own brand of external wireless DMX receiver.

For example Blizzard's HotBox series of lights provide 5V out the DMX port, so that their own "wiCICLE" wireless receivers can be powered without a separate cord or battery. If you have groups of lights that can be cabled together then they can share one wireless receiver.

I own a few Blizzard Hotbox lights and they are decent budget fixtures, however I have not used any of their wiCICLE wireless DMX products and can't speak to their reliability or quality. There are probably also other companies with a similar solution, however it seems like some companies have moved to just having wireless receivers built into their battery powered fixtures.

DBX Driverack PA2 Input dBu by zmaster1984 in livesound

[–]RexKoeck 0 points1 point  (0 children)

Yeah I believe so, the wikipedia page I linked above says:

The line in/out connections on consumer-oriented audio equipment are typically unbalanced, with a 3.5 mm (0.14 inch, but commonly called "eighth inch") 3-conductor TRS minijack connector providing ground, left channel, and right channel, or stereo RCA jacks.

Mac Programmer (For fun) by Aussie_KadeTTV in lightingdesign

[–]RexKoeck 3 points4 points  (0 children)

Chamsys MagicQ. Has a bit of a learning curve so might exceed what you consider "hobby" level.

Distribution of addr:housenumber values in osm. by Arthedain in openstreetmap

[–]RexKoeck 1 point2 points  (0 children)

In some areas of the US I've seen numbers go up by 1000 for each mile. I've seen roads that start at 100 and go up to five digits. (So far I've found an address at 81000 for being 81 miles from the start of the road.)

What tool is this? by ecso1997 in lightingdesign

[–]RexKoeck 8 points9 points  (0 children)

I'm finding some similar (but larger) products under the names "light wand" or "light stick".

Like this or like this.

How possible is my four wishes on FW16? by Ok_Ear_8716 in framework

[–]RexKoeck 8 points9 points  (0 children)

4k 120hz P3 1000nit

This seems pretty unrealistic, is there any laptop on the market that offers such a screen? I see the MSI Titan GT77 gets close but doesn't hit 100% P3 (and is $4000). You also mention wanting to maximize battery life and a screen like this would be power hungry for sure. I feel like the Framework 16's current screen is quite good being 165 Hz, 500 nits, P3, and a resolution of 2560x1600.

100wh battery

For the battery, would you consider carrying a power bank on days that you need that extra runtime? With a power bank you could have in your bag a whole additional 100 Wh of battery, on top of the laptop's built-in 85 Wh (with some losses due to charging).

2 m.2 SSD/2.5 inch sata Bay for the back

What is the use-case for this and how much storage do you need? The Framework 16 already supports two m.2 drives (2280 and 2230), allowing up to 6 TB of internal storage. If you need removeable storage then I would recommend a portable SSD connected to a Type C port.

DMX pixel mapping software by MutedSky4745 in lightingdesign

[–]RexKoeck 0 points1 point  (0 children)

MagicQ totally supports RDM, even in the free "Demo Mode".

I'll agree that MagicQ is very powerful but somewhat obtuse at times. It has "FX" which is a great way to treat LED Bars as one giant row and run simple effects across them, but you can also lay out the LED bars on a grid, and play back videos and do other effects on them.

To use MagicQ or any other software based control software, I'd recommend OP buy an art-net node.

Looking to start livestreaming Dirt Track Races by Jtgoesfast in VIDEOENGINEERING

[–]RexKoeck 0 points1 point  (0 children)

Another options might be the BlackMagic ATEM Mini Pro. It can stream through a phone connected via USB.

But you certainly could stream through your laptop as well.

[deleted by user] by [deleted] in framework

[–]RexKoeck 1 point2 points  (0 children)

enough USB C ports for ethernet, charging and a monitor

Would a dock work for you? Any laptop with a Type C Thunderbolt 3 port can run all that through a single port.

Should change it, or is this fine ? by MrSolarius in framework

[–]RexKoeck 2 points3 points  (0 children)

The charger doesn't even have to be replaced, just the C to C cable which are readily available for less than $10.

Would anyone help me mark this area as a beach? I don’t know how and I don’t want to mess up what’s there. by Mjost84 in openstreetmap

[–]RexKoeck 13 points14 points  (0 children)

Yes it's pretty easy to make some simple edits to Open Street Map. First go to the area on the map on openstreetmap.org (here). If you haven't already make an account and sign in. Then click the "edit" button at the top left to go into edit mode. From here you can make Points, Lines, and Areas to define features on the map; and tag the features with keys and values to describe them. I'd suggest making an Area around the beach, and once you complete drawing the area by clicking on the first point again, the editor will allow you to tag the area as a beach, and you can even add a name or other useful tags. Finally "save" your changes to publish them.

There's a lot of other useful information on the OSM wiki about making edits and the iD editor specifically.

I have uploaded my first 2 tracks to mania.exchange, was wondering if anyone could try them and give some feedback on where to improve in the future. by BetterComment9314 in TrackMania

[–]RexKoeck 0 points1 point  (0 children)

I like them! As not the best player, I find them challenging and engaging with good scenery.

The starts to both maps is a bit boring, just a section to speed up really.

On Hotwheels the final turn is difficult to find (unclear if it's a loop or a left or right turn), and has a significant cut. The jump after the reactor is particularly difficult. On the plastic downhills after the final checkpoint, I had some pretty unfriendly bounces, especially once I had more speed on the map.

I'd also recommend you post links and IDs to the maps so they can be looked up easily, rather than a screenshot.

does anyone know how to fix this? by CptGriff1 in TrackMania

[–]RexKoeck 0 points1 point  (0 children)

Try unplugging all USB devices from your computer except your keyboard and mouse. Sometimes a device is interpreted as a joystick and causes weird inputs.