3D - OpenGL

Index

General
OpenGL
Mesa
Open Inventor
GLUT
Programari / Software
Desenvolupament / Development
- Unity 3D
VRML
Impressió / Printing
Ray tracing, radiosity
Reconstrucció / Reconstruction
Mons virtuals / Virtual worlds

General

3DSite
3D links (Rich Coutts)
3DGC - 3D Graphics in MPEG-4
- MPEG 3D graphics FAQ
Mark Kilgard Home Page
Graphics resources (Zhar)

OpenGL

Mesa

The Mesa 3-D graphics library
Do all intel gpu's use software rendering (Mesa) only?
- glxinfo | fgrep direct
- LIBGL_ALWAYS_SOFTWARE=1 glxinfo|grep '\<renderer\>'
Eines / Tools

glxinfo

glxinfo -B
glxinfo | fgrep direct
LIBGL_ALWAYS_SOFTWARE=1 glxinfo|grep '\<renderer\>'

Demos
- glxgears
  - source
    - freedesktop / mesa-demos / xdemos / glxgears.c
    - dependències
      - Mageia
        
        sudo dnf install autoconf automake libtool lib64glew-devel
      - Alma 8
        
        sudo dnf install glew-devel
    - compilació / compilation
      - ./autogen.sh
      - ./configure
      - make
      - sudo make install
      - Problemes / Problems
        
        configure.ac:38: error: possibly undefined macro: AC_PROG_LIBTOOL
  - install
    - Mageia
      - sudo dnf install mesa-demos
  - usage
    - glxgears
    - DISPLAY=:0 glxgears
    - glxgears -display :0 -info -geometry 400x400+200+100
    - disable vsync
      - Disable vertical sync for glxgears
      - Chapter 11. Specifying OpenGL Environment Variable Settings (470.82.01)
      - Appendix B. X Config Options (Screen or Device section)
      - [X11][EGL] Detect (roughly) correct screen refresh rates
      - using nvidia-settings?
      - mesa:
        
        vblank_mode=0 glxgears
      - nvidia:
        
        __GL_SYNC_TO_VBLANK=0 glxgears
    - enable vsync
      - ...
      - Problemes / Problems
        
        ...
        
        Solució / Solution
        
        libstrangle
    - ...
  - problems
    - vsync not honoured on AWS EC2 g4dn with nvidia drivers
      - Enabling VSYNC with Nvidia drivers
      - ...
- glxspheres64
  - install
    - Mageia
      - sudo dnf install glxspheres
    - Alma Linux
      - installed by VirtualGL
  - usage
    - glxspheres
    - glxspheres64
    - /opt/VirtualGL/bin/glxspheres64

Open Inventor

Open Source Open Inventor
- Mandrake RPMS
Open Inventor 2.5 from TGS
Utilities FTP
Games
Examples:
- C: /usr/share/src/Inventor/examples/Mentor/C/
- C++: /usr/share/src/Inventor/examples/Mentor/C++/
- SceneViewer: /usr/share/src/Inventor/demos/SceneViewer/

GLUT

Glut specification
Spec
Examples (local):
- normal: /usr/share/src/GLUT/examples
- Inventor: /usr/share/src/GLUT/inventor (glutduck)

VirtualGL

usually used with dummy driver (to be able to run in background) but using hardware acceleration
Install
- Mageia
  - sudo dnf install virtualgl
- Alma
  - get package from download page
...

Programari / Software

	SGI	Linux	MSWin	Palm OS
OpenGL	×	-	×	miniGL
Mesa	(source distribution)			-
GLUT	×	src	×	-

Modeladors / Modellers
- Art of illusion
- Blender
  - Arquitectura / Architecture
    - Blender for architecture
    - Blender 3D architect
      - Stereoscopic render
      - Blender 2.50: How to import and export from 3ds Max 2010
  - Stereoscopic rendering in Blender
  - DWG DXF support
    - Importing DXF files to Blender 2.8
      - Edit -> Preferences -> Add-ons: DXF
    - Blender 3D importing DWG files?
    - DWG support for Blender
- DraftSight (dwg)
- Google Sketchup
  - Google 3D Warehouse (Online 3D Model Repository)
  - Google Sketchup on Linux
    - wine ...
- k-3D
- K3Studio
- Mistif model 3D
- Moonlight 3D
- OpenFX
- Top Mod
- Wings3D
3dPM
AC3D
Visualitzadors / Viewers
- GPAC (X3D, VRML, ...)
- VTK (Visualisation Toolkit)
  - VTK (wp)
CAD
- Linux CAD (tenlinks)
- FreeCAD
- Varkon
Arquitectura / Architecture
- Sweet Home 3D (Java)
- Home Design and Remodeling Software
- Room arranger
- Octree (architecture)
- Blender for architecture
Motors / Engines
- Ogre (open source graphics engine)
- OOMadness
  - Soya (3D engine for Python)
Mons virtuals / Virtual worlds
- realXtend
- OpenSimulator
File formats
- Collada
- VRML
- X3D (wp)
- DXF
  - Used by:
    - XtrackCAD
    - Blender
  - Documents
    - AutoCAD 2000 DXF Reference
    - DXF Reference (pdf) (AutoCAD)
    - The DXF File Specification
  - Exemples
    - recta / straight
    - corba / curve
      - ...
API
- O3D (es) (wp) (Google)
  - O3D samples
- WWW
  - Canvas 3D
  - Web3D
  - WebGL (wiki) (Javascript on HTML5) (wp)
    - Getting a WebGL Implementation
    - Demo repository (Khronos)
    - Demos: GPU Acceleration and WebGL (Chrome)
VTK
Bullet 3D Game Multiphysics Library
- urpmi libbullet2
Ray-tracing
- POV ray
- Yafaray
- Sunflow
OpenVDB (DreamWorks): hierarchical data structure
Framerate limiter
- libstrangle
  - compilació
    - dependències
      - Alma 8
        
        sudo dnf install ...
    - passos / steps
      1. git clone https://gitlab.com/torkel104/libstrangle.git
      2. cd libstrangle
      3. make 64-bit
      4. sudo -i
      5. make install-common install-64
      6. echo "/usr/local/lib/libstrangle/lib64" >/etc/ld.so.conf.d/libstrangle.conf
      7. ldconfig
  - ús
    - strangle 60 /path/to/game

Desenvolupament / Development

CUDA
- Intro to CUDA (Linux Magazine)
- CUDA versions

Unity3D

Install Unity3D on Linux
- Passos / Steps
  1. wget https://public-cdn.cloud.unity3d.com/hub/prod/UnityHub.AppImage
  2. chmod +x UnityHub.AppImage
  3. ./UnityHub.AppImage

Virtual display

How to run Unity on Amazon Cloud or without Monitor

Running Unity app with graphics on a server without monitor
Running Unity app offscreen on your local machine
Run Unity app with graphics on Amazon Cloud!

	deps	setup	X server	launch unity
Running Unity app with graphics on a server without monitor	xserver-xorg	sudo nvidia-xconfig -a --use-display-device=None --virtual=1280x1024	sudo /usr/bin/X :0 &	DISPLAY=:0 $your_unity_exec
Running Unity app offscreen on your local machine	xorg-video-abi-15 x11-driver-video-dummy virtualgl	# xorg.conf from XDummy wget http://xpra.org/xorg.conf .	Xorg -noreset +extension GLX +extension RENDER -logfile ./10.log -config ./xorg.conf :10	DISPLAY=:10 vglrun $your_unity_exec
Run Unity app with graphics on Amazon Cloud (EC2: gxx)	xserver-xorg mesa-utils	# disable nouveau ... sudo nvidia-xconfig -a --use-display-device=None --virtual=1280x1024	sudo /usr/bin/X :0 &	DISPLAY=:0 $your_unity_exec

Eines relacionades / Related tools
- How to Git with Unity
- Gitlab CI: Building Unity Projects Automatically with Docker
Instruccions antigues / Old instructions
- Unity on Linux: Release Notes and Known Issues
  - Unity 5.6.0xb3Linux Linux Editor downloads
- Unity 3D est disponible en preview pour Linux
- Instal·lació / Installation
  1. Download autoinstallation script (2.2GB)
    - wget http://beta.unity3d.com/download/b7d937b6f596/unity-editor-installer-5.6.0xb3Linux.sh
  2. ...
- Errors
  - Empty screen

Unity3D

Instal·lació / Installation
- Raspberry Pi
  - Introduction to Unity
- Install the Unity Hub and Editor
  1. wget https://public-cdn.cloud.unity3d.com/hub/prod/UnityHubBeta.tar.gz
  2. tar xvf UnityHubBeta.tar.gz
  3. cd Unity\ Hub
  4. chmod +x INSTALL.sh
  5. mkdir -p ~/.local/share/applications/
  6. ./INSTALL.sh
Manual
- Unity User Manual 2020.3 (LTS)
Problemes / Problems
- Editor crashes at "__assert_fail_base.cold" when opening a project (Linux)
Ús / Usage
- ${HOME}/Applications/UnityHub.AppImage
Plugins
- Video players (play a video from inside Unity)
  - ffmpeg for Unity
    - NON906
      - ffmpeg-build-script
      - fftools_lib
  - vlc-unity
    - by VideoLABS
      - Videolabs (Unity asset store)
    - Linux support
      - VLC version 4?
  - NexPlayer
  - AVPro Video
- FEMTP
  - Assetstore
- WebRTC
...

Javascript

Three.js
- Getting Started with Three.js

VRML

Web3D Consortium (VRML)
Cosmoworld
Cosmo for IRIX
Cosmo development (VRML)
VRML works
- Browser test
VRML.SGI.COM
Editors
- White_dune
Navegadors / Browsers
- VRML Plugin and Browser Detector
- FreeWRL (sf)

Impressió / Print

	type	format	free	examples	comments
GLpr (dwnld)	vector	PS,	-		It works with Inventor.
PS render	vector	PS	×	GLUT	Not all the primitives are implemented.
GLP	vector	PS	×	Mesa
TGS (3D Master Suite)	2D vector	PS	-		Not for 3D scenes.
Iv2Ras	bitmap	PS, rgb	×
iv2ps	bitmap	PS	×

Ray-tracing, radiosity

Reconstrucció / Reconstruction

Canonview: Scene Summarization for Online Image Collections (U. Washington)
- Building Rome in a Day
Photosynth (Microsoft)
Photo to 3D

Mons virtuals / Virtual worlds

PVML

http://www.francescpinyol.cat/opengl.html
Primera versió: / First version:
Darrera modificació: 25 de gener de 2024 / Last update: 25th January 2024

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