MandelWow

Overview

MandelWow is a generalized version of Mandelbrot & Julia in which both C and Z0 vary in a 4-dimensional space. On each frame we render a 3D slice of the MandelWow, varying the remaining dimension through time.

I wrote this demo to learn Rust & basic GLSL. Mind the mess.

Requirements

The native binary requires OpenGL 3.1. Should perform well on reasonably modern hardware. Tested on:

Linux with NVidia GTX 970 (Mesa 17.1 Nouveau driver)
Linux with Intel HD Graphics 4000 (Ivy Bridge)
Windows 10 with NVidia GTX 970
The asmjs and WebAssembly build works on Chromium 57 and Firefox 53

Building from source

Linux

Install cargo (either your distro's packaged version or via rustup), then go to the source root and type:

cd mandelwow
git submodule init
git submodule update
cargo run --release

Windows

Mandelwow depends on libxm and SDL2 for sound. Both are tricky to build using Rust's MSVC toolchain because they assume GCC, so I recommend using the GNU toolchain instead. I followed these steps to build a native Windows binary:

Install Cargo via rustup.
Install mingw-w64. The MSYS2 installer provides the basic shell environment and the package manager.
From the MSYS2 console, install the W64 native toolchain and libSDL2:
```
pacman -Sy
pacman -S mingw-w64-x86_64-gcc mingw-w64-x86_64-SDL2
```
While you're at it, you may also want to install the git package: pacman -S git

I had to manually add the mingw-w64 toolchain to your path:

export PATH="/mingw64/bin:$PATH"
export LIBRARY_PATH=/mingw64/lib

In case cargo and rustup aren't in the shell path, add $USERPROFILE/.cargo/bin too.

Next, install the Rust toolchain targeting GCC:

rustup toolchain install stable-x86_64-pc-windows-gnu
rustup default stable-x86_64-pc-windows-gnu

Now you can proceed to mandelwow's source tree and build a native Windows binary without further hassles:
```
cargo run --release
```

WebAssembly / asm.js

Install emsdk:

cd ~
curl -O https://s3.amazonaws.com/mozilla-games/emscripten/releases/emsdk-portable.tar.gz
tar xf emsdk-portable.tar.gz
cd emsdk-portable
source ./emsdk-portable/emsdk_env.sh
emsdk install latest --build=MinSizeRel
emsdk activate latest --build=MinSizeRel

Install rustc:

cd ~
curl https://sh.rustup.rs -sSf | sh
source ~/.cargo/env
rustup toolchain install nightly
rustup default nightly
rustup target install asmjs-unknown-emscripten
rustup target install wasm32-unknown-emscripten

Build and run mandelwow:

cd mandelwow
./release_asmjs.sh

Build the WebAssembly binary:

cd mandelwow
./release_wasm.sh

License

This project is GPL 3.0. The support/ directory contains some code forked from Glium, which was originally Apache 2.0.

License

codewiz/mandelwow

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