CustomRenderer

A GPU renderer written with CUDA for the Computer Graphics lecture at ETH Zurich.

The Syntax is inspired by the educational ray tracer Nori.

There are still a lot of open TODO's and ideas which may hopefully be explored in the future.

Usage

First clone the repository and initialize the submodules using git submodule update --init --recursive.

If all the prerequisites are installed, the executable can be generated using the following commands:

mkdir build
cd build
cmake ..
make 

or make -j 6 to make use of 6 threads

To run the script from the root folder, run the command

./build/CustomRenderer scenes/cbox.xml or the path to any other compatible scene description file.

This will run a live-preview of the rendering progress.

Until the image completes, the camera can be moved around using WASD/Left Shift/Space to translate the camera and adjust the shot.

The GUI might not display correctly on the first launch and might require the adjustment of the sub-window sizes.

The tonemapping in the live preview is incorrect at this point and displays images darker than they will be if gamma correction is applied correctly.

The (correctly) tonemapped image will be saved in the data folder.

The renderer was developed and tested on Arch Linux btw.

Example Images

Special Features

Adaptive Sampling

Test Scene	Sample Distribution

Advanced Camera Model

Depth of Field

Test Scene	Depth of Field

Distortion

Test Scene	Distortion

Non-Spherical Apertures

Spherical Aperture	Square Aperture	Triangular Aperture

Denoising

Bilateral Filter

Test Scene	Denoised Version	Variance Buffer

Intel Open Image Denoise with Color, Albedo and Normal Buffer

Test Scene	Denoised Version

Environment Map

Importance Sampling

Environment Map	Sample Distribution

Textures

Mesh Textures

Mesh Emitter Textures