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by Jim Manley
Tue May 15, 2018 9:49 pm
Forum: Python
Topic: Pi3D
Replies: 241
Views: 26513

Re: Pi3D

Hi Paddy, While I'm slogging through testing the demos on Windoze systems running Pi3D, there is another upcoming challenge I will need help to solve. I haven't seen any examples of how to texture map the inside of a sphere in Pi3D, and the reason I would like to do that is so that I can wrap the en...
by Jim Manley
Sat May 12, 2018 7:33 am
Forum: Python
Topic: Pi3D
Replies: 241
Views: 26513

Re: Pi3D

That sounds bad. There's lots of scope for unsafe operations patching pointers and untyped python variables into gl functions. What python are you running and is it 64 or 32 bits? This laptop is also i5 8Gb with windows 10 - but it's in as small a partition as I thought I could get away with and it...
by Jim Manley
Wed May 09, 2018 10:06 pm
Forum: Python
Topic: Pi3D
Replies: 241
Views: 26513

Re: Pi3D

Hmm, there is a ShadowCaster class and shader that works ok for shadows cast onto the ground or other objects (see CastShadows and TigerShadow demos) but I can't get it to work for your rings (and I can't really remember how it works) I will have a look later. Whoa! When I tried running either of t...
by Jim Manley
Tue May 08, 2018 1:06 pm
Forum: Python
Topic: Pi3D
Replies: 241
Views: 26513

Re: Pi3D

Checked the Starfield.py demo on windows and noticed that Diplay.create() has the samples argument. This improves antialiassing for white lines on a black background, unfortunately it doesn't seem to have been implemented in the ANGLE software (maybe I should checkout the latest source code and rec...
by Jim Manley
Fri May 04, 2018 9:55 pm
Forum: Python
Topic: Pi3D
Replies: 241
Views: 26513

Re: Pi3D

Hi Paddy, So, I generated a .png of the rings with transparency for the darker pixels. I got the rings to display via a Plane with the image applied as a texture, positioned centered on a sphere for Saturn (named saturn) with its texture applied. I can even rotate the rings around the x axis so that...
by Jim Manley
Fri Apr 27, 2018 9:42 pm
Forum: Python
Topic: Pi3D
Replies: 241
Views: 26513

Re: Pi3D

Hi Paddy! I figured you would see my questions within a week or three, but I guess timing is everything! I did try running the Starfield.py demo, noticing it right away when I downloaded the current Pi3D release, but I was on a Windoze PC at school at the time, and got the following highly informati...
by Jim Manley
Fri Apr 27, 2018 3:23 am
Forum: Python
Topic: Pi3D
Replies: 241
Views: 26513

Re: Pi3D

Hi Fellow and Fellowette Pi3D Gurus and Nutjobs! It's been faaaaar too long since I'd perused this thread and I'm glad to see that things are still being improved and expanded. I've been off teaching a variety of STEM things for quite a while and am only now getting back to Pi3D because I'm teaching...
by Jim Manley
Tue Apr 25, 2017 2:31 am
Forum: General discussion
Topic: Alernative ways to power a Pi
Replies: 32
Views: 3613

Re: Alernative ways to power a Pi

Solar power (photovoltaic) panels convert _solar_ wavelength photons into electron flow, which are from primarily toward the red end of the visible spectrum due to the physics of the materials used in the panels. Fluorescent lights actually generate mostly UV internally in the bulbs, and the phospho...
by Jim Manley
Tue Apr 25, 2017 1:04 am
Forum: Raspberry Pi Desktop for PC and Mac
Topic: STICKY: X86 Debian Jessie with PIXEL desktop for PC and Mac (obsolete)
Replies: 231
Views: 78390

Re: Debian Jessie with PIXEL desktop i386 for PC and Mac

I may have missed it being posted, and searches haven't returned any appropriate results, but does anyone know the path where the persistence files are stored on a PC when that option is chosen at Raspbian PIXEL x86 boot time? If there are multiple drives on the PC, which one are the persistence fil...
by Jim Manley
Thu Apr 13, 2017 6:05 am
Forum: Raspbian
Topic: Raspbian Jessie (64bit) for RPi3?
Replies: 145
Views: 124023

Re: Raspbian Jessie (64bit) for RPi3?

Greetings to the assembled masses here (pun fully intended for the low-level coders). My buck-two-eighty's worth (two cents adjusted for inflation since my inception :D ) opinion on 64-bit needs requires putting on my (one of many) hat as senior docent at the Computer History Museum in Silicon Valle...
by Jim Manley
Thu Jan 05, 2017 4:43 am
Forum: Compute Module
Topic: CM3
Replies: 90
Views: 15208

Re: CM3

Since people keep asking when the CM3 will be available and no one seems to have paid any attention to my post from December 12th, I'll repeat the appropriate portion here:
Jim Manley wrote:The lead time pop-up says stock should be in by 1/16/17 (or 16/1/17 for those into DD/MM/YY ordering).
by Jim Manley
Wed Dec 14, 2016 11:22 pm
Forum: Compute Module
Topic: CM3
Replies: 90
Views: 15208

Re: CM3

I am more interested in the CM3 than the CM3L, as I like having eMMC for the boot drive - in my experience, plant operators will often remove any removable media... That's what environmentally-sealed enclosures are for - just keep the card invisible to the denizens of the environment as well as the...
by Jim Manley
Tue Dec 13, 2016 7:16 pm
Forum: Compute Module
Topic: CM3
Replies: 90
Views: 15208

Re: CM3

Are there mods to use a CM3 with the older dev board? The CM3 will reportedly work with the Original Flavor dev board if additional current is provided via beefing-up (via a jumper, I'd guess) that's required for the CM3 (and certainly the NEC CM3-16GB) via vbat. However, the CM3 Lite will need the...
by Jim Manley
Mon Dec 12, 2016 9:39 pm
Forum: Compute Module
Topic: CM3
Replies: 90
Views: 15208

Re: CM3

Aha... Found teh US listings: http://www.newark.com/webapp/wcs/stores/servlet/Search?catalogId=15003&langId=-1&storeId=10194&categoryName=All%20Categories&selectedCategoryId=&gs=true&st=rpi-compute3 CM3L: $27 CM3: $31 Dev Kit: $177. AND...Newark is doing their "+$20 shipping per order" trick which ...
by Jim Manley
Fri Oct 14, 2016 9:56 pm
Forum: General discussion
Topic: NEC Digital Signage Screens Get Pi
Replies: 13
Views: 2973

Re: NEC Digital Signage Screens Get Pi

Direct link to image: http://www.inavateonthenet.net.s3.amazonaws.com/images/default-source/products/nec-display-with-integrated-raspberry-pi.jpg?sfvrsn=0 Eben mentioned that they've been working with NEC on this for about a year, and it was interesting to see that, in the hi-res photo, the silkscr...
by Jim Manley
Fri Oct 14, 2016 9:28 pm
Forum: Compute Module
Topic: Compute module 3 datasheet
Replies: 6
Views: 2679

Re: Compute module 3 datasheet

Thank you very, very much for that. The CM3L is a surprise. The 4GB eMMC for the CM3 is a mild disappointment, but I'm glad to know for sure that that is what it will have. The purpose of the CM(3)(L) is embedded applications, so it won't need a full Raspbian distro for those. Something like a lapt...
by Jim Manley
Sun Jul 31, 2016 8:40 am
Forum: Off topic discussion
Topic: Arm to be sold to Japanese
Replies: 28
Views: 3975

Re: Arm to be sold to Japanese

OK, so here's some additional reality to ponder. I know Mr. Son personally, as he occasionally attends the National Model Railroad Association (NMRA) local meetings for the Coast Division of the Pacific Coast Region, i.e., the NMRA division which includes Silicon Valley (and you thought corporate Do...
by Jim Manley
Sun Jul 31, 2016 7:16 am
Forum: Weather station
Topic: Schemes of work not found
Replies: 8
Views: 1447

Re: Schemes of work not found

The resources are available directly here: https://www.raspberrypi.org/learning/sensing-the-weather/ and here: https://www.raspberrypi.org/learning/weather-station-guide/ Excellent! Would any U.S. STEM/CS teachers like to join me in divvying up annotation for cross-referencing of these schemes of w...
by Jim Manley
Fri Jul 29, 2016 4:38 am
Forum: Weather station
Topic: Connect Raspberry Pi weather station with Weather Undergroun
Replies: 27
Views: 4429

Re: Connect Raspberry Pi weather station with Weather Underg

You are a smart person to criticize because that wouldn't be very secure. When you create a new station on their web site (https://www.wunderground.com/personal-weather-station/signup/) they will give you a station ID and a station password. Those are the values it is expecting, not your personal a...
by Jim Manley
Fri Jul 29, 2016 3:45 am
Forum: Weather station
Topic: Schemes of work not found
Replies: 8
Views: 1447

Re: Schemes of work not found

Github is filtered in school due to content so I will download at home. How strange to do that for one of the great learning resources on the internet. I fear your firewall is controlled by Dilbert's sworn enemy Mordac. Unfortunately, there is Not Suitable For School (NSFS) content on many otherwis...
by Jim Manley
Fri Jul 29, 2016 3:16 am
Forum: Weather station
Topic: STICKY: Introduce yourself!
Replies: 65
Views: 17044

Re: Introduce yourself!

Hi Jim! Glad you could join us :) I don't think Jim will mind me saying that he is a legend in the Raspberry Pi community :D Hi Clive! No, you're the legend around here, buddy! However, now that you mention it, I do drive a 1994 Acura Legend with over 260,000 miles on it. I'm also apparently the su...
by Jim Manley
Thu Jul 28, 2016 5:32 pm
Forum: Weather station
Topic: Calibration of the weather station
Replies: 17
Views: 2590

Re: Calibration of the weather station

I have to say whenever I see "elevation" it triggers my "that's mostly American" synapses, that regardless of what you may want to teach now compared to what I was taught in the 1970's & 1980's. I'll also apply Humpty Dumpty's rule (in Through the Looking Glass ). https://en.wikipedia.org/wiki/Hump...
by Jim Manley
Thu Jul 28, 2016 11:07 am
Forum: Weather station
Topic: Remote Control your weatherstation
Replies: 13
Views: 2115

Re: Remote Control your weatherstation

There is another option for finding out what the IP address of your Pi is and, although it's not guaranteed to work, every time I've tried it, it has. Type "ping raspberrypi.local" (without the double quote marks) from a command line on a Windows system (via the Command Prompt program) or Mac system...
by Jim Manley
Thu Jul 28, 2016 10:07 am
Forum: Weather station
Topic: Our FAQ is online
Replies: 19
Views: 8745

Re: We're writing a FAQ for the weather station - help wante

Hi Jim, welcome to the Weather Station sector. You need to update your forum profile. It still claims you're in the Valley of the Silly Cons. Actually, like any good quantum particle, I am, in fact, in at least two places at any one time, with my perceived location depending on the measurement bein...
by Jim Manley
Thu Jul 28, 2016 9:47 am
Forum: Weather station
Topic: Calibration of the weather station
Replies: 17
Views: 2590

Re: Calibration of the weather station

Pedant. http://www.dictionary.com/browse/altitude http://www.dictionary.com/browse/elevation It may be another of those UK vs US things. I love ya ta death, Dougie, but we're dealing with precise STEM definitions (in this case, meteorology) as used at learned places such as the scientific schools a...

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