OpenGL Sample Repository - Work In Progress

A collection of OpenGL Samples, work in progress, for personal educational purposes.

CLI - Command Line Options

Usage:
  OpenGL Sample: GLSample [OPTION...]

 GLSample options:
  -h, --help                   helper information.
  -d, --debug                  Enable Debug View. (default: true)
  -t, --time arg               How long to run sample (default: 0)
  -f, --fullscreen             Run in FullScreen Mode
  -v, --vsync                  Vertical Blank Sync
  -g, --opengl-version arg     OpenGL Version (default: -1)
  -F, --filesystem arg         FileSystem (default: .)
  -r, --renderdoc              Enable RenderDoc
  -W, --width arg              Set Window Width (default: -1)
  -H, --height arg             Set Window Height (default: -1)
  -D, --display arg            Display (default: -1)
  -R, --dynamic-range arg      Set Dynamic Range ldr,hdr16,hdr32 (default: 
                               hdr16)
  -m, --multi-sample arg       Set MSAA (MultiSampling) (default: 0)
      --super-multisample arg  Set Super MultiSampling MSAA (default: 0)
  -p, --use-postprocessing     Use Post Processing (default: true)
  -C, --disable-colorspace     Use Color Space Convertion
  -s, --glsl-version arg       Override glsl version from system 
                               (110,120,130,140,150,330...) (default: -1)

Graphic Based Samples

Triangle

Texture

Point Lights

Normal Mapping

SkyBox Cubemap

SkyBox Panoramic

Fog

Simple Reflection

Irradiance

Instance

SubSurface Scattering

Normal

Blinn - Phong

Terrain

FrustumCulling

Shadow Map

Shadow Map PCF

Point Shadow Light

Shadow Projection

Shadow Map Variance

Shadow Volume

Tessellation Basic

MipMap Visual

Multipass

Deferred Rendering

Ambient Occlusion

Physical Based Rendering

Panoramic

Skinned Mesh

Simple Ocean

Video Playback

Compute Shader Base Examples

Ray Tracing

Game Of Life

Mandelbrot

ReactionDiffusion

Vector Field 2D

Compute Group Visual

Marching Cube

Rigidbody

PostProcessing Effects

• Chromatic Aberration

• Sobel Edge Detection

• Screen Space Ambient Occlusion

• Gaussian/Box Blur

• Mist Fog

• Volumetric Scattering

• ColorSpace

• Pixelate

• Grain

• Bloom

• Contact Shadow

• Vignette

Required Packages

sudo apt-get install pkg-config libsdl2-dev libfreeimage-dev libfmt-dev libglm-dev libgtest-dev googletest mesa-common-dev mesa-utils libopenal-dev libalut-dev
sudo apt-get install glslang-tools libavcodec-dev libavformat-dev libswscale-dev libavutil-dev binutils-dev libeigen3-dev libglu1-mesa-dev libbz2-dev libzip-dev libogg-dev libopus-dev libvorbis-dev libssl-dev

Build Instruction

git submodule update --init --recursive
mkdir build && cd build
cmake ..
make
make DownloadAsset

License

This project is licensed under the MIT License - see the LICENSE file for details

Models downloaded from Morgan McGuire's Computer Graphics Archive

Misc Notes

Force NVIDIA Usage

Force the system to try to use the NVIDIA GPU. This is very useful when using a system with multiple GPUs.

__NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia program arguments

Mesa

MESA_DEBUG=1
MESA_GLSL=source
MESA_SHADER_DUMP_PATH=dump
INTEL_DEBUG=perf

Export Build to Target Directory

Build Asset File

tar

Setup Build.

cmake .. -DCMAKE_INSTALL_PREFIX=/target -DCMAKE_BUILD_TYPE=Release

Install

cmake --build . --parallel $(nproc --all) --target install ;