env-kit (Deprecated)

This project is aims at generating, from a given map, its BRDF look-up texture, its irradiance map and the prefiltered environment. You can use the project as a third-party library, directly integrated in your custom engine / project, or, if you want to use it offline, you can use the generated albedo-prefilter binary linked to the library.

You can choose whether to compute through the CPU or the GPU.

Supported input/output formats:

• .hdr

Supported input image type:

• Latlong
• Cubecross
• 6 faces (Splitted Cubemap)

Supported output image type:

• Cubecross
• 6 faces (Splitted Cubemap)

Building

Dependencies

According to how you compile the library or the albedo-prefilter binary, you will need the following dependencies:

• TBB (Only if you want CPU multithreading)
• GLEW (Only if you want to use the GPU)
• GLFW (Only if you want to use the GPU)

How to build

Builds only the library

$ mkdir build && cd build
$ cmake -DCMAKE_BUILD_TYPE=Release ..
$ make albedo_envtools

Builds the binary tool using the library

$ mkdir build && cd build
$ cmake -DCMAKE_BUILD_TYPE=Release ..
$ make

Builds the library / binary without dependencies

If you do not want to use the GPU, or even the CPU parallelism, you can build the library / binary accordingly. You can set the value -D_ALBEDO_TOOLS_MODEto one of the following:

• NONE -> Only CPU monothreading
• ALL -> GPU and CPU multithreading (requires TBB, GLEW, and GLFW)
• TBB_ONLY -> Only CPU multithreading (requires TBB)
• GPU_ONLY -> Only GPU (requires GLEW and GLFW)

For instance, if you only plan to use the GPU:

$ cmake -DCMAKE_BUILD_TYPE=Release .. -D_ALBEDO_TOOLS_MODE=GPU_ONLY

Binary Usage

TODO

• CPUProcessor: Add bilinear interpolation to Cubemap generation
• GPUProcessor: Add specular computation
• CPUProcessor: Add specular computation
• Library: Track every memory leaks
• Library: Implements PIMPL
• Binary: Improve command line info
• Fix help not printing everything
• Library: Add documentation
• Add spherical harmonics generation