This repository contains the code for performing the DXT1 re-compression step of the proposed 3CPS supercompression algorithm.
The re-compression step, based on the Maximum Difference Cut, is implemented in the NVIDIA Texture Tools (repository: https://github.com/castano/nvidia-texture-tools).
A primary feature of NVIDIA Texture Tools is the DXT compression. Our solution contributes to the nvtt library, optimizing the CompressorDXT1 functionaly (including functions for performing DXT1 texture compression).
To install and run our 3CPS solution, you can use the support for building Docker image and running encoding experiments in a Docker container. The folder textures/ contains uncompressed examplar textures.
$ docker build -t 3cps-nvidia-texture-tools:latest .
To run the software for all examplar textures in textures/ folder:
$ docker run -ti -v $(pwd)/textures:/nvidia-texture-tools/data --rm 3cps-nvidia-texture-tool
To run the software for a particular texture t.jpg from the textures/ folder:
$ docker run -ti -v $(pwd)/textures:/nvidia-texture-tools/data --rm 3cps-nvidia-texture-tool t.jpg
Moreover, to compare the re-compression step from our 3CPS solution to the original DXT1 compression, build the Docker image in the folder base-nvidia-texture-tools/. The build will clone the original nvidia-texture-tools repository and install the software. Then, run the Docker container on all examplar textures or on a particular texture.