black_hole

black_hole

Black hole simulation project

Here is the black hole raw code, everything will be inside a src bin incase you want to copy the files

I'm writing this as I'm beginning this project (hopefully I complete it ;D) here is what I plan to do:

1. Ray-tracing : add ray tracing to the gravity simulation to simulate gravitational lensing

2. Accretion disk : simulate accreciate disk using the ray tracing + the halos

3. Spacetime curvature : demonstrate visually the "trapdoor in spacetime" that is black holes using spacetime grid

4. [optional] try to make it run realtime ;D

I hope it works :/

Edit: After completion of project -

Building Requirements:

1. C++ Compiler supporting C++ 17 or newer

2. Cmake

3. Vcpkg

4. Git

Build Instructions:

1. Clone the repository:
   • git clone https://github.com/kavan010/black_hole.git
2. CD into the newly cloned directory
   • cd ./black_hole
3. Install dependencies with Vcpkg
   • vcpkg install
4. Get the vcpkg cmake toolchain file path
   • vcpkg integrate install
   • This will output something like : CMake projects should use: "-DCMAKE_TOOLCHAIN_FILE=/path/to/vcpkg/scripts/buildsystems/vcpkg.cmake"
5. Create a build directory
   • mkdir build
6. Configure project with CMake
   • cmake -B build -S . -DCMAKE_TOOLCHAIN_FILE=/path/to/vcpkg/scripts/buildsystems/vcpkg.cmake
   • Use the vcpkg cmake toolchain path from above
7. Build the project
   • cmake --build build
8. Run the program
   • The executables will be located in the build folder

Alternative: Debian/Ubuntu apt workaround

If you don't want to use vcpkg, or you just need a quick way to install the native development packages on Debian/Ubuntu, install these packages and then run the normal CMake steps above:

sudo apt update
sudo apt install build-essential cmake \
	libglew-dev libglfw3-dev libglm-dev libgl1-mesa-dev

This provides the GLEW, GLFW, GLM and OpenGL development files so find_package(...) calls in CMakeLists.txt can locate the libraries. After installing, run the cmake -B build -S . and cmake --build build commands as shown in the Build Instructions.

How the code works:

for 2D: simple, just run 2D_lensing.cpp with the nessesary dependencies installed.

for 3D: black_hole.cpp and geodesic.comp work together to run the simuation faster using GPU, essentially it sends over a UBO and geodesic.comp runs heavy calculations using that data.

should work with nessesary dependencies installed, however I have only run it on windows with my GPU so am not sure!

LMK if you would like an in-depth explanation of how the code works aswell :)