Inspired by Daniel Shiffman's Perlin Noise and Flow Field videos:
https://www.youtube.com/user/shiffman
https://www.youtube.com/watch?v=BjoM9oKOAKY
This program takes an image as input, and periodically generates a new image, which is the result of tracing particles flowing over the original. Daniel's video explains it much better than I can.
Note: the current version of this program will run infinitely. Make sure to stop it or you will eventually fill your drive with the generated images!
Requires SFML & libnoise. Tested using sfml-2.4.2 & libnoise-1.0.0
The above image was generated with the following parameters:
// Parameters for image file creation
std::string output_name = "output_cell5_alpha5_part2000";
unsigned int output_index = 1;
float output_interval = 5.f;
// Parameters for Perlin noise generation
const double xoffset = 0.01;
const double yoffset = 0.01;
const double zoffset = 0.01;
// Parameters for particles and grid
constexpr int cell_size = 5;
constexpr int num_particles = 2000;
constexpr int alpha = 5;
constexpr float flow_strength = 3.f;
The above image was generated with the following parameters:
// Parameters for image file creation
std::string output_name = "output_cell5_";
unsigned int output_index = 1;
float output_interval = 5.f;
// Parameters for Perlin noise generation
const double xoffset = 0.01;
const double yoffset = 0.01;
const double zoffset = 0.01;
// Parameters for particles and grid
constexpr int cell_size = 5;
constexpr int num_particles = 5000;
constexpr int alpha = 10;
constexpr float flow_strength = 3.f;