Path tracer developed during the Photorealistic Computer Graphics course @ Computer Science studies @ University of Wrocław.
- Fast ray-triangle intersection computation using k-d tree.
- Output in EXR format.
- Adjustable number of threads used during the rendering.
- Adjustable render resolution and camera parameters using RTC (Rendering Task Configuration) file.
- Scene preview with option to set new camera position.
Source: https://ii.uni.wroc.pl/~anl/dyd/RGK/.
RTC file consists of the following lines. The first seven are mandatory.
comment line
obj/file/path
output/file/path
k (recursion level)
xres yres (image resolution)
VPx VPy VPz (camera position)
LAx LAy LAz (point for camera to look at)
UPx UPy UPz (camera's up direction, optional)
yview (image height to focal length ratio, optional)
In absence of UP vector, one will be inferred from VP and LA.
yview defaults to 1.0.
Example
#
CornellBox-Original.obj
CornellBox-Original.exr
16
600 400
0.0 1.0 3.0
0.0 1.0 0.0
0 1 0
1
Usage: ./raytrace [OPTION...] RTC_FILE
Render scene specified in RTC_FILE using ray tracing.
Options:
-h [ --help ] Print this help message.
-n [ --threads ] arg (=-1) Number of threads used for rendering. -1
(default) means number of available CPU cores.
-s [ --samples ] arg (=1024) Number of samples per pixel.
-p [ --preview ] Preview scene.
Controls:
LMB+move: look around
w: move forward
s: move backward
a: move left
d: move right
r: move up
f: move down
e: roll right
q: roll left
backspace: reset view
left shift: accelerate
left ctrl: decelerate
enter: overwrite rtc file camera settings with
current ones
space: render current view
esc: quit
- Assimp
- OpenGL
- GLFW
- Boost Program Options
- OpenEXR
On Debian-based distributions, the above can be installed with
sudo apt install libassimp-dev libepoxy-dev libgl-dev libglfw3-dev libboost-program-options-dev libopenexr-dev