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Check out the Impressions from CanJam Shanghai 2019
Founded in 1995, GameFAQs has over 40,000 video game FAQs, Guides and Walkthroughs, over 250,000 cheat codes, and over 100,000 reviews, all submitted by our users to help you. Multiple max719 LED Matrix times out after abouts 5 hours #108. Closed timwareing opened this issue Jun 19, 2017 54 comments Closed Multiple max719 LED Matrix times out after abouts 5 hours #108. Timwareing opened this issue Jun 19, 2017 54 comments. On an Orange Pi Zero (which is not as powerful as a Raspberry Pi 2 or 3).
CanJam Shanghai has returned, and Head-Fi'ers will begin sharing their impressions once the doors have opened. Follow this thread to check out impressions of some of the world's best audio gear.
'Bottom line, this is a phenomenal amp, truly the best headphone amp I have ever personally heard at any price.' Check out @HiGHFLYiN9's MicroZOTL MZ3 review to find out what makes it so special.
2019 CanJam Shanghai Preview Video (Including Many Measurements)
In this CanJam Shanghai Preview, a lot of IEMs, DACs, DAPs, and much more are shown--including many audio measurements. A lot more gear will be at the show, happening November 9-10, 2019 in Shanghai.
CanJam Shanghai is almost here, and we're excited to be returning to China. Join the Head-Fi and CanJam team this weekend at the Shanghai Marriott Hotel City Centre for the second CanJam Shanghai.
FiiO's first Bluetooth 5.0 full-size headphone with support for SBC, AAC, aptX, aptX LL, aptX HD, and LDAC is finally available. Read all about its feedforward ANC and 45mm drivers in this thread.
Looking for an inexpensive IEM to carry around? Read why @Animagus says the '[Moondrop] Spaceship’s performance to price ratio is very good and you should definitely give it a try' in his review.
Join Head-Fi in New York for CanJam NYC 2020 (February 15-16, 2020)
CanJam returns to Times Square this Presidents' Day weekend, and we invite you to join us for two incredible days in the Big Apple. Make sure to grab your discounted room rate before they're gone.
If you haven't yet checked out Radsone's EarStudio ES100 Bluetooth DAC/amp, now is a great time. Radsone recently released the refreshed ES100MK2 with improvements to the exterior. Read about it here.
FiiO Receives Several Honors at the 2020 VGP Awards
The VGP 2020 awards have been announced, and FiiO managed to take home 18 wins, including two golds in the hi-res music player categories and a gold in headphone amplifiers. See the winners here.
Describing the Abyss Headphones Diana V2 as 'VERY balanced: nothing is missing, everything is included,' @chimney189's asks that you 'at least audition these headphones before this world ends.'
Head-Fi'er @twister6 recently put Astell&Kern's A&ultima SP2000 to the test, pitting it against several popular DAPs and sharing some of his favorite headphone pairings. Read his full review here.
Those looking for an IEM that has a 'reference tuning with a touch of warmth in the mids' won't want to miss this Cayin YB04 review from @twiceboss. 'Plus, YB04 has above average soundstage!'
Head-Fi'er @Zelda describes the HiBy R5 as a DAP that's 'excellent for everyday portable use with a full Android interface that runs very fast and smooth.' Check out the full review here for more.
'In the very competitive hybrid universal landscape, the DK-4001 stands proud as a proper flagship,' writes @davidmolliere. 'Dunu certainly found a superb balance between engagement and technicality.'
HeadAmp Refreshes Their Online Store with a New Update
HeadAmp recently updated their website, saying 'this new site should be a much better experience for customers,' and 'more features are on the way.' Stop by the new site to check it out.
Dan Clark came to visit us at Head-Fi HQ, and while he was here we took the new Dan Clark Audio AEON 2 for a spin -- and we talked about the end of MrSpeakers.
Upcoming Meet: Westborough, MA (November 10, 2019)
Calling all New England Head-Fi'ers. If you're going to be around Worcester, MA on November 10th, swing out to Westborough to meet up with local Head-Fi'ers, talk music, and demo awesome gear.
In this video review, @Currawong describes the AME Custom Argent as 'very good for vocals and instruments -- acoustic music in general.' Grab your favorite headphones and check out his review here.
In the previous article, I explained how to control the color of a particular LED of the RGB LED matrix panel. Thanks to that knowledge, you can draw simple graphics: points, circles, lines and so on. But how can we easily draw a rotating triangle? Or a mesh like a torus? Or any 3D scene? Answer in this article!
GeeXLab comes with a powerful feature used in almost any 3D game: render targets. In short, a render target allows to draw a 3D scene into a texture and then apply any kind of effects on that texture before displaying it.
That’s cool, but how will a render target help us to draw on our 32×32 RGB LED panel?
Simply by drawing into a 32×32 pixels render target. Once the scene has been rendered in the render target, we can read each pixel of the render target texture and then use the gh_rpi.rgbmatrix_set_pixel_u8() function (see the previous article) to update the LED panel.
All following code samples and demos are available in two places:
– in the gl-21/rpi/rpi_rgb_matrix/ folder of the code sample pack.
– in the demos/rpi_rgb_matrix/ folder included with GeeXLab for Raspberry Pi.
– in the gl-21/rpi/rpi_rgb_matrix/ folder of the code sample pack.
– in the demos/rpi_rgb_matrix/ folder included with GeeXLab for Raspberry Pi.
These demos require GeeXLab for Raspberry Pi with OpenGL 2.1 support. This version of GeeXLab can be downloaded from this page.
How to run a demo?
In GeeXLab’s folder you will find a file called demos.sh. Edit this file and uncomment/comment the lines that start with sudo. If necessary, update the /demofile parameter with correct path + file name of the demo.
You can now run the demos.sh file. The demos.sh file has the execution bit set, so you can launch it by double-clicking on it. Or you can run it in command line with:
RGB LED matrix demos requires root level because they use the GPIO to control the RGB Matrix HAT.
Here is a code snippet in Lua (you can do the same thing in Python) that shows how to render a rotating triangle on the RGB LED matrix display. rt01 is the render target, vertex_color_prog is a simple vertex color GLSL program, camera is a perspective camera and triangle is a simple mesh made up of 3 vertices.
You can find the rotating triangle demo in the code sample pack here: gl-21/rpi/rpi_rgb_matrix/demo02_rpi_gl21.xml
Now let’s replace the simple RGB triangle by a torus with a Phong shader and a background image. You can find this demo in the code sample pack: gl-21/rpi/rpi_rgb_matrix/demo05_rpi_gl21.xml
A simple background image… (available here: gl-21/rpi/rpi_rgb_matrix/demo03_rpi_gl21.xml)
And what about some animated text? The following demo (available here: gl-21/rpi/rpi_rgb_matrix/demo04_rpi_gl21.xml) shows an animated text (based on a True Type Font)
Render targets are a powerful tool for real time graphics and are the key to easily display 3D stuff on a RGB LED matrix panel with a Raspberry Pi. Render targets are easy to use and are supported by GeeXLab on all platforms including, of course, the Raspberry Pi. As you can see, when you know how to render a 3D scene in a render target, you can draw what you want on a RGB LED matrix panel.
Update (2016.12.19)
I updated the code sample pack with a demo that shows how to render an anti-aliased triangle. The demo is available here: gl-21/rpi/rpi_rgb_matrix/demo06_rpi_gl21.xml
The principle is to render the main scene (here a simple rotating triangle) into a 64×64 render target. The 64×64 render target texture is then copied (with a render target blit function) to a second render target with a size of 32×32 pixels. This second render target will be used to update the RGB LED matrix. The result is a nice rotating triangle. All details are available in the demo source code.
The triangle rendered without anti-aliasing:
![Game pi zero dot matrix dmg files Game pi zero dot matrix dmg files](/uploads/1/2/5/8/125832878/198493841.jpg)
The same triangle rendered with anti-aliasing:
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