All posts 🚀

✒ 2021

• 16/08 ◾ Shadertoying
• 13/08 ◾ [OpenGL and Vulkan Interoperability on Linux] Part 11: Debugging the semaphore synchronization 🍄
• 06/07 ◾ Debugging WebKit graphics using APItrace
• 02/07 ◾ An easy way to debug WebKit’s WebProcess with GDB
• 07/06 ◾ Building the i965 mesa driver on FreeBSD
• 06/05 ◾ Sharing texture data between ANGLE and the native system driver using DMA buffers and EGL on Linux (proof of concept)
• 20/04 ◾ EXT_external_objects and EXT_external_objects_fd for the Intel iris driver have been merged into mesa3D! [updated]
• 13/04 ◾ Using EGL and the dma_buf kernel framework to associate two textures with the contents of the same buffer without copy taking place
• 06/04 ◾ Setting up to debug ANGLE with GDB (on Linux)
• 13/02 ◾ About VK_EXT_sample_locations
• 03/02 ◾ Build WebKit/WPE on Linux/X11
• 09/01 ◾ [BootBoot]: Quick Update
• 05/01 ◾ [BootBoot] Part 3: Wait for keypress
• 05/01 ◾ [BootBoot] Part 2: Boot from a floppy drive, load the 2nd sector, jump to it
• 05/01 ◾ [BootBoot] Part 1: Boot from a floppy drive and clear the screen

✒ 2020

• 22/11 ◾ FOSSCOMM 2020, and a status update on EXT_external_objects(_fd) extensions [en, gr]
• 14/11 ◾ A hack to instantly display the Vulkan CTS tests output
• 09/11 ◾ [OpenGL and Vulkan Interoperability on Linux] Part 10: Reusing a Vulkan stencil buffer from OpenGL
• 31/10 ◾ [OpenGL and Vulkan Interoperability on Linux] Part 9: Reusing a Vulkan z buffer from OpenGL
• 23/10 ◾ [OpenGL and Vulkan Interoperability on Linux] Part 8: Using a Vulkan vertex buffer from OpenGL and then from Vulkan
• 18/10 ◾ [OpenGL and Vulkan Interoperability on Linux] Part 7: Reusing a Vulkan vertex buffer from OpenGL
• 18/10 ◾ [OpenGL and Vulkan Interoperability on Linux] Part 6: About overwriting buffers [UPDATED]
• 18/10 ◾ [OpenGL and Vulkan Interoperability on Linux] Part 5: A Vulkan pixel buffer is reused from OpenGL
• 17/10 ◾ [OpenGL and Vulkan Interoperability on Linux] Part 4: Using OpenGL to overwrite Vulkan allocated textures.
• 20/09 ◾ [OpenGL and Vulkan Interoperability on Linux] Part 3: Using OpenGL to display Vulkan allocated textures.
• 18/09 ◾ [OpenGL and Vulkan Interoperability on Linux]: The XDC 2020 presentation
• 18/09 ◾ XDC 2020
• 16/08 ◾ [OpenGL and Vulkan Interoperability on Linux] Part 2: Using OpenGL to draw on Vulkan textures.
• 03/07 ◾ [OpenGL and Vulkan Interoperability on Linux] Part 1: Introduction
• 21/04 ◾ Save the penguin! (Ludum dare jam 46)

✒ 2019

• 15/09 ◾ GUADEC 2019 took place in my city! Also: my helloworld in Rust.
• 23/07 ◾ Holy-Days experiments 🌊 🌴 🌞 (Installing TempleOS/Holy-C on VirtualBox)
• 30/06 ◾ Depth-aware upsampling experiments (Part 6: A complete approach to upsample the half-resolution render target of a SSAO implementation)
• 30/06 ◾ Depth-aware upsampling experiments (Part 5: Sample classification tweaks to improve the SSAO upsampling on surfaces)
• 22/06 ◾ Depth-aware upsampling experiments (Part 4: Improving the nearest depth where we detect discontinuities)
• 06/06 ◾ Depth-aware upsampling experiments (Part 3.2: Improving the upsampling using normals to classify the samples)
• 05/06 ◾ Depth-aware upsampling experiments (Part 3.1: Improving the upsampling using depths to classify the samples)
• 05/06 ◾ Depth-aware upsampling experiments (Part 2: Improving the Z-buffer downsampling)
• 04/06 ◾ Some additions to vkrunner
• 28/05 ◾ Depth-aware upsampling experiments (Part 1: Nearest depth)
• 21/05 ◾ A simple pixel shader viewer
• 06/05 ◾ Vkrunner allows specifying the required Vulkan version
• 06/05 ◾ Having fun with Vkrunner!
• 18/03 ◾ A system to reject phone calls from my laptop
• 17/02 ◾ i965: Improved support for the ETC/EAC formats on Intel Gen 7 and previous GPUs
• 27/01 ◾ Hair simulation with a mass-spring system (punk’s not dead!)

✒ 2018

• 08/10 ◾ XDC2018
• 31/08 ◾ SIGGRAPH2018
• 22/07 ◾ Claws-mail: a trick to view the patches as side-by-side diffs
• 21/07 ◾ Claws-mail + vdirsyncer (sync contacts)
• 04/03 ◾ A short OpenGL / SPIRV example.

✒ 2017

• 10/11 ◾ Install/Update LetsEncrypt certificates (no-root, apache2, debian)
• 08/11 ◾ Fosscomm 2017 [update: slides in English]
• 24/08 ◾ A terrain rendering approach (part 1)
• 03/08 ◾ Debugging graphics code using replacement shaders (Linux, Mesa)
• 28/07 ◾ Creating cube map images from HDR panoramas on GNU/Linux
• 10/05 ◾ A helloworld kernel module
• 17/04 ◾ Morphing test
• 11/01 ◾ [Updated] Enable the new (faster) Unity 7 Low Graphics mode from unity-control-center

✒ 2016

• 18/10 ◾ Unity 7 Low Graphics Mode Improvements
• 18/10 ◾ Compiz window management: New options that increase performance.
• 10/06 ◾ Creating a PPA for nux, compiz and unity
• 08/05 ◾ Don’t touch my screen, bro!
• 21/04 ◾ The process to backport a compiz bug fix on Trusty (current LTS release: Xenial).
• 10/04 ◾ Broken car surveillance…
• 23/02 ◾ Compiz Introduction and Demo Extra: HOWTO Build the Ubuntu Desktop (the script way)
• 31/01 ◾ Coming soon: shadows for shaped windows.

✒ 2015

• 21/09 ◾ Some Compiz bugs will be automatically closed.
• 12/09 ◾ Share your data files quickly using the python SimpleHTTPServer
• 18/08 ◾ Compiz Introduction and Demo Part 5/5: How to write a Compiz Plugin
• 16/08 ◾ Compiz Introduction and Demo Part 4/5: Build the Ubuntu Desktop
• 16/08 ◾ Compiz Introduction and Demo Part 3/5: Development, Tools and Support
• 16/08 ◾ Compiz Introduction and Demo Part 2/5: Plugin demonstration
• 16/08 ◾ Compiz Introduction and Demo Part 1/5: The Ubuntu Desktop
• 28/04 ◾ Compiz and Unity 7 fixes

✒ 2014

• 18/12 ◾ 2o Summer School του ΑΠΘ
• 28/09 ◾ 1o Summer School του ΑΠΘ
• 27/07 ◾ SSH tunnel για MySQL connections
• 01/05 ◾ CT scan viewer

✒ 2013

• 19/10 ◾ Nested Ubuntu Unity with Xephyr
• 09/07 ◾ Unbrick dead Google Nexus Galaxy – Install Ubuntu
• 28/05 ◾ How to create a gbm buffer under X.
• 20/04 ◾ Winnie: a framebuffer window system
• 14/02 ◾ Libgliar: a library that lies to the OpenGL programs about the OpenGL context information
• 07/01 ◾ How to build and test nux quickly

✒ 2012

• 18/07 ◾ FOSSCOMM 2012, 0x375: 3D effects στο Stellarium (el, gr)
• 18/06 ◾ A virtual keyboard
• 01/04 ◾ Venus in Stellarium
• 29/02 ◾ Serial IR receiver

✒ 2011

• 31/10 ◾ New Stellarium features
• 20/09 ◾ Stellarium planet rendering improvements.

✒ 2010

• 16/12 ◾ Augmented reality snakeball game
• 21/02 ◾ Path tracer

✒ 2009

• 24/12 ◾ Hierarchical animation using trigonometric functions.
• 24/12 ◾ OCR project
• 24/12 ◾ Virtual Anatomy Class
• 24/12 ◾ Ray tracer using axis aligned bounding boxes!
• 20/05 ◾ Μετατρέποντας τα ελληνικά filenames σε greeklish

✒ 2008

• 25/02 ◾ Συνδεση με VPN στο Α.Π.Θ. απο Linux