npm

glsl-imager

render glsl shaders to the terminal(!) or to a JPG, GIF, PNG, or PPM file

simple-bitmap-font

small 8x8 bitmap font for 2d/3d graphics and terminal

triangle-distance

Highly optimized javascript distance function for triangles

round-cone-distance

optimized signed distance function for rounded cones (aka lozenges with different-sized "ends")