Mandelbrot GPU

Render mandelbrot fractals on the GPU using openCL. Supports double precision using fixed point decimal calculations.

Building

make
./a.out

Configuration

The program can be configured with the config.cfg file,

# Resolution
width = 1080
height = 720

# Number of iterations per frame
steps = 20

# Number of anti-aliasing samples in the x and y directions
anti_alias_samples = 2

# Technical options, can be ignored
profile = false
verbose = true
useGpu = true

# Starting position
scale = 7.01041481809828e-12
center_x = -0.124342549132596
center_y = 0.989003740008400
theta = 0.394995

Controls

• You can zoom in by selecting a region with the mouse, and pressing a while holding down the mouse button.
• Shift the selected region with the arrow keys
• Increase or decrease the zoom by 20% with the [ and ] keys
• The rendered texture can be zoomed independently, with the w and s keys. Center a point by right clicking.

Rendering images

By pressing the W key, the texture is written to a csv file. This can then be transformed to a png with the convert_raw_images.py script. Install the dependencies by running

pip install -r requirements.txt