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by Gavinmc42
Thu Jul 18, 2019 1:37 am
Forum: Beginners
Topic: i have a tight buget. is the pi 3 worth buying or should i just buy the 4
Replies: 10
Views: 218

Re: i have a tight buget. is the pi 3 worth buying or should i just buy the 4

The Pi4B, even the 1GB is so much better than the 3B+. How poor is this guy? If he is spamming then he must have computing devic of some sort. Probably fancy $1000 smart phone? But seriously, avoid Pi's at all costs, they breed like tribbles. And they are a big waste of time, all that learning and c...
by Gavinmc42
Thu Jul 18, 2019 1:21 am
Forum: Off topic discussion
Topic: Something I'd like to see.
Replies: 5
Views: 130

Re: Something I'd like to see.

The other day I did a google and found Computes are used on PC/104 motherboards. I found something about PCIe and "OneBank" connectors. http://linuxgizmos.com/raspberry-pi-cm3-arrives-on-pc104-sort-of/ Some people are not holding their breath waiting of RPF..... https://www.embedded-computing.com/in...
by Gavinmc42
Wed Jul 17, 2019 10:05 am
Forum: General discussion
Topic: Using raspberry pi 4 B as an everyday desktop?
Replies: 9
Views: 310

Re: Using raspberry pi 4 B as an everyday desktop?

If only ARM hadn't been sold to SoftBank That raised a few eyebrows and some people might be feeling a little uncomfortable. But FPGA support tools are coming along. Design your own RISC-V PC in a FPGA? RISC-V is becoming popular in China and India, I wonder why? Can you design your next PC on a Pi...
by Gavinmc42
Wed Jul 17, 2019 7:39 am
Forum: General discussion
Topic: Using raspberry pi 4 B as an everyday desktop?
Replies: 9
Views: 310

Re: Using raspberry pi 4 B as an everyday desktop?

Been using this Pi4B1 for the last two weeks since my Celeron Mint box died. I was expecting some compromise but with the latest Buster upgrade everything is fine. Not everything I need as a replacement is working yet. But I have done coding while browsing and watching /listening to YT. That did not...
by Gavinmc42
Wed Jul 17, 2019 2:36 am
Forum: Raspbian
Topic: FreeCAD on PI4 and Raspbian Buster.
Replies: 35
Views: 1244

Re: FreeCAD on PI4 and Raspbian Buster.

Anyone tried building from source? I had to do a dist-upgrade to fix the Buster release/stable issue and just installed freecad again. Same issue starts up and then disappears when "creating new" Got this message, looks like a OpenGL error? freecad FreeCAD 0.18, Libs: 0.18R © Juergen Riegel, Werner ...
by Gavinmc42
Wed Jul 17, 2019 2:17 am
Forum: General discussion
Topic: Minecraft Bedrock edition on Pi?
Replies: 8
Views: 329

Re: Minecraft Bedrock edition on Pi?

You might have to wait until there are some 64bit OS's for the Pi4.
Been some prerelease pics posted but 64bit is not yet out of the box for Pi4.

But if you have a Pi3B+ handy
https://www.raspberrypi.org/forums/view ... 4&t=231660
by Gavinmc42
Wed Jul 17, 2019 2:09 am
Forum: Troubleshooting
Topic: Pi 4 with Buster - No hardware acceleration for Video/WebGL in Chromium?
Replies: 44
Views: 2773

Re: Pi 4 with Buster - No hardware acceleration for Video/WebGL in Chromium?

See the post above where the specifics of what is accelerated is actually right in front of you. WebGL2 is one of them. I know that's why I went and checked, hence that link. I keep forgetting this is a Pi and chose to close some tabs down when I get near 20 of them. In Gentoo64 on a 3B+ I have tes...
by Gavinmc42
Wed Jul 17, 2019 1:46 am
Forum: Gaming
Topic: Supertuxkart on Raspberry Pi
Replies: 40
Views: 10487

Re: Supertuxkart on Raspberry Pi

If you are on Raspbian Buster, it includes STK version 0.9.3 in the repos, presumably built to use the GL renderer. It should work out of the box with "sudo apt install supertuxkart", as the V3D provides desktop GL 2.1, and 0.9.3 includes the necessary graphical restriction (https://github.com/supe...
by Gavinmc42
Tue Jul 16, 2019 10:28 am
Forum: Raspbian
Topic: OpenSCAD
Replies: 14
Views: 1075

Re: OpenSCAD

Pretty impressed with OpenGL on the Pi4. Thought I would try installing OpenSCAD So many dependencies. I got this far. Hey, wonder if Povray works? ./scripts/check-dependencies.sh depname minimum found OKness qt 4.4 unknown NotOK ./scripts/check-dependencies.sh: line 248: -query: command not found ....
by Gavinmc42
Tue Jul 16, 2019 7:35 am
Forum: Gaming
Topic: Deep Platformer
Replies: 1
Views: 79

Re: Deep Platformer

Looking for some OpenGL code
https://rosettacode.org/wiki/OpenGL#Pascal

It worked :o
No extra dependencies needed ;)

Stuff just works on Pi4's.
Time to look for something harder.
by Gavinmc42
Tue Jul 16, 2019 7:07 am
Forum: Troubleshooting
Topic: Pi 4 with Buster - No hardware acceleration for Video/WebGL in Chromium?
Replies: 44
Views: 2773

Re: Pi 4 with Buster - No hardware acceleration for Video/WebGL in Chromium?

The VC6 supports OpenGLES 3.0, therefore it should be able to do WebGL2.0. This seems to indicate it does https://get.webgl.org/webgl2/ Was looking for some WebGL2 examples to test and found this, not sure which version but I'm impressed. https://alteredqualia.com/three/examples/webgl_terrain_dynami...
by Gavinmc42
Tue Jul 16, 2019 6:09 am
Forum: General discussion
Topic: Raspberry PI4 1 external HDD to each USB3.0 port without external power possible ?
Replies: 6
Views: 334

Re: Raspberry PI4 1 external HDD to each USB3.0 port without external power possible ?

SSD or HD?
Depends on how much power they draw.
Some HD's are power hogs.
by Gavinmc42
Tue Jul 16, 2019 4:58 am
Forum: General discussion
Topic: Usefull / good programs to have on your Pi
Replies: 19
Views: 708

Re: Usefull / good programs to have on your Pi

apt-get install mc

back to 1993(for me)
Yep Midnight Commander is a must.
File manager and editor that even works remotely over ssh ;)
by Gavinmc42
Tue Jul 16, 2019 4:44 am
Forum: General programming discussion
Topic: Comparing Interpreted Language Speed.
Replies: 39
Views: 900

Re: Comparing Interpreted Language Speed.

Though some have tried, it appears to me that there is no use in using an interpreted language to bit-bang the GPIO lines. I bitbanged GPIO in micropython for a simple single axis stepper motor driver. It was not worth the trouble of compiling for a simple application. Lots of stuff can be done wit...
by Gavinmc42
Mon Jul 15, 2019 10:35 am
Forum: General discussion
Topic: Designing real electrical car
Replies: 13
Views: 429

Re: Designing real electrical car

Body Electrics is the term for stuff not connected to the engine or drive system. Climate control, lighting, RC locking, electric windows, radio and camera etc. When you include electric cars then BMS's, battery management systems are needed. Normally this is integrated with the charging system and ...
by Gavinmc42
Mon Jul 15, 2019 7:09 am
Forum: OpenGLES
Topic: :? - Im comfused i need som info on PI4 and GL|ES
Replies: 4
Views: 162

Re: :? - Im comfused i need som info on PI4 and GL|ES

Confused? join the club ;) A search will not find much yet on this. Some are further along than others. With the Pi4 OpenGL will be the starting point. The source for that open driver is in the mesa code. Not sure if or when VC6 OpenGLES/VG stuff will show up. I already run OpenGL games, some are ok...
by Gavinmc42
Mon Jul 15, 2019 6:41 am
Forum: General discussion
Topic: Designing real electrical car
Replies: 13
Views: 429

Re: Designing real electrical car

Find your nearest Formula E company and visit them?
https://www.fiaformulae.com/
by Gavinmc42
Mon Jul 15, 2019 6:07 am
Forum: General discussion
Topic: Designing real electrical car
Replies: 13
Views: 429

Re: Designing real electrical car

What car has heat and motion sensing? Kit? Do Tesla's have that yet? Is it just monitoring or are you going to do full 100KW+ 3phase motor control? Mainboard? Going to need more that just one PCB. You can send me videos, PDFs or lecture about this topic) Or you could goolge this yourself and save us...
by Gavinmc42
Mon Jul 15, 2019 3:22 am
Forum: RISCOS
Topic: Proposal to show speed of RISC OS compared to Linux.
Replies: 58
Views: 1448

Re: Proposal to show speed of RISC OS compared to Linux.

Tell me about the shell scripting.
I noticed there was a headless version that was only 3.8MB.
But I did not see any source, so it is not open?
by Gavinmc42
Mon Jul 15, 2019 2:45 am
Forum: General discussion
Topic: Raspberry and electricity
Replies: 16
Views: 804

Re: Raspberry and electricity

Not really for server usage but for 24/7 Pi data logger gadgets I use PiCore Linux. PiCore runs from ram so power outages don't cause OS errors. I might lose some data but no big deal as it is only temperature data. I get an email if it reboots, that way I know it there was a power outage. These uni...
by Gavinmc42
Mon Jul 15, 2019 12:51 am
Forum: General programming discussion
Topic: Comparing Interpreted Language Speed.
Replies: 39
Views: 900

Re: Comparing Interpreted Language Speed.

Until recently I had been ignoring the TCL/TK combo.
Too retro for me?
Turns out tcl is small enough to get embedded in small systems.

It also seem to be available on most systems.
Is it portable to RISC-OC?
TK the graphics part seems to get used by Python etc.

So Lua is in but Luajit is out?
by Gavinmc42
Sun Jul 14, 2019 9:49 am
Forum: OpenGLES
Topic: RPi4 Problem drawing GL_POINTS anyone?
Replies: 6
Views: 155

Re: RPi4 Problem drawing GL_POINTS anyone?

A grep does not find that combo in the mesa examples.

A google finds the docs with minimal examples, but you probably know that already.
http://docs.gl/gl2/glDrawElements
by Gavinmc42
Sun Jul 14, 2019 8:25 am
Forum: Gaming
Topic: Deep Platformer
Replies: 1
Views: 79

Deep Platformer

Sometimes code is written so well it just works. Install fpc, then lazarus Download Deep Platformer, compile it, then run. https://forum.lazarus.freepascal.org/index.php/topic,44908.120.html If I knew how to do screen capture on Pi's there would be a picture of it working here. All done on a Pi4 :D ...
by Gavinmc42
Sun Jul 14, 2019 7:25 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 263
Views: 48307

Re: Raspberry Pi 4 temperature

Those little heatsinks make a big difference, it is the surface area that helps.
by Gavinmc42
Sun Jul 14, 2019 7:08 am
Forum: Bare metal, Assembly language
Topic: BARE METAL VC 4 Video Decoding
Replies: 4
Views: 239

Re: BARE METAL VC 4 Video Decoding

They have gone for software decoding on the Pi4 as the ARM core are now fast enough.
Look in the source of ffmpeg/VLC?

VC4 uses the hardware but you could try software decoding on a 3B+?
Might be ok for 480 line res?

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