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by Fragment
Wed Mar 27, 2019 7:02 pm
Forum: OpenGLES
Topic: Weird behavior : Rendering is done in the top right screen corner
Replies: 4
Views: 1013

Re: Weird behavior : Rendering is done in the top right screen corner

What do you mean it require a hard power off ??
by Fragment
Tue Mar 26, 2019 7:49 pm
Forum: OpenGLES
Topic: Weird behavior : Rendering is done in the top right screen corner
Replies: 4
Views: 1013

Re: Weird behavior : Rendering is done in the top right screen corner

Here is an example which replicate the behavior, it draw a red 1920x1080 texture (the drawing is done on CPU) : #include <stdio.h> #include <stdlib.h> #include <sys/ioctl.h> #include <linux/fb.h> #include <unistd.h> #include <fcntl.h> #include <GLES2/gl2.h> #include <EGL/egl.h> #include <EGL/eglext....
by Fragment
Tue Mar 26, 2019 12:49 am
Forum: OpenGLES
Topic: Weird behavior : Rendering is done in the top right screen corner
Replies: 4
Views: 1013

Weird behavior : Rendering is done in the top right screen corner

Hello, i have a rendering issue with OpenGL ES 2, i am rendering a fullscreen textured quad with the texture updated each frames and it work however the quad is rendered half width / half height in the top right corner of the screen... This fullscreen quad without the dispman part was actually teste...
by Fragment
Wed Jun 20, 2018 11:22 pm
Forum: Graphics programming
Topic: FBG : Framebuffer graphics library with multi-core support
Replies: 5
Views: 1600

Re: FBG : Framebuffer graphics library with multi-core support

Oh ok. Could I make an animated graphic boot screen for raspbian? Yes, however i don't know how that work Sure, it can be used to make anything related to graphics. However this library is very bare-metal (not specialized for video games) and graphics are not accelerated by the PI GPU, as such ther...
by Fragment
Wed Jun 20, 2018 4:40 pm
Forum: Graphics programming
Topic: FBG : Framebuffer graphics library with multi-core support
Replies: 5
Views: 1600

Re: FBG : Framebuffer graphics library with multi-core support

Sure, it can be used to make anything related to graphics.

However this library is very bare-metal (not specialized for video games) and graphics are not accelerated by the PI GPU, as such there might be better alternative for video games on the PI. :)
by Fragment
Sun Jun 17, 2018 10:43 pm
Forum: Graphics programming
Topic: FBG : Framebuffer graphics library with multi-core support
Replies: 5
Views: 1600

FBG : Framebuffer graphics library with multi-core support

Hello, i am sharing a lightweight graphics library which use the Linux framebuffer (non-accelerated), it has full multi-core support (which was the main goal), it is mainly tested and developed on the Raspberry PI 3B. Features : * Optional : Full parallelism, execute graphics code on multiple CPU co...
by Fragment
Wed Feb 08, 2017 10:09 pm
Forum: Graphics, sound and multimedia
Topic: Fragment : Collaborative Spectral Synthesizer
Replies: 0
Views: 407

Fragment : Collaborative Spectral Synthesizer

Hello everyone, i would like to present you Fragment, a synthesizer which associate visuals/audio through direct manipulation of the spectrum, this is a live-coding additive synthesizer, the visuals are generated by a GLSL script (the GPU is producing the visuals) which is shared between users and p...

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