LightWelter; yet another raytracer

Installation

Dependencies

• System packages (as named in Debian): libassimp-dev libopenexr-dev libglew-dev libsdl2-dev libsdl2-ttf-dev libsdl2-image-dev libboost-all-dev cmake
• OpenGL ES 3.10 capable driver
• C++14 capable compiler
• internet connection (cmake will download some other dependencies)

Installation

git clone https://github.com/acriaer/light-welter.git
cd light-welter
mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release ..
make -j4
cd ..

Usage

./build/demo_app <rtc_file> [--<config_option_name>=<config_option_value>]*

You should see two windows: one for the opengl preview and one for the raytracer's output image. Press ENTER key to start raytracing. You can alse use some other keys:

• X -- unlock free camera movement
• WSADQE -- move the camera around
• arrow keys -- change camera orientation
• +/- -- increase/decrease the field of view
• ESCAPE -- quit

For now please only use "standard" resolutions, i.e. 640x480 instead of 600x400.

Important options

• --interactive=0 ; disable gui
• --threads=8 ; threadpool size
• --samples_per_pixel=120
• --resx=1280
• --resy=720

Examples

Other software used

http://ogldev.atspace.co.uk/index.html

https://github.com/opengl-tutorials/ogl

SDL2pp

spdlog

pugixml

GLM

CMakeRC