3D Rendering Pipeline in MATLAB

Features

• Perspective or Orthographic projection (Right Handed Axis)
• Full object transform (Scale, Rotation, Translation)
• Freely position camera in 3D space
• Configurable camera FOV and aspect ratio
• Any number of point lights, with any color
• Per vertex shading with Specular & Diffuse lighting passes (ambient optional)
• Only 30 lines of code! Fully vectorized, no loops used

Images

spin-2pass.webm

Animation made by rendering frames and encoding in various formats with ffmpeg and gifksi. All actual video formats compress better then the gif, even when lossless. I wish GitHub allowed auto-playback of webm/vp9 in embedded markdown.

gifski -r 30 --extra -Q100 -W728 --repeat 4 -o spin.gif frames/*.png

ffmpeg -framerate 30 -i 'frames/frame%03d.png' -pix_fmt yuv420p -c:v libx264 -preset veryslow -crf 18 -movflags +faststart -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2" spin.mp4

ffmpeg -framerate 30 -i frames/frame%03d.png -pix_fmt yuv420p -c:v libvpx-vp9 -b:v 0 -crf 31 -pass 1 -f null /dev/null && \
ffmpeg -framerate 30 -i frames/frame%03d.png -pix_fmt yuv420p -c:v libvpx-vp9 -b:v 0 -crf 31 -pass 2 images/spin-2pass.webm

ffmpeg -framerate 30 -i frames/frame%03d.png -pix_fmt yuv420p -c:v libvpx-vp9 -lossless 1 images/spin-lossless.webm

Utah Teapot from

All other models created by me in Blender.