# Cube-Demo {#v4d_cube}

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| Original author | Amir Hassan (kallaballa) <amir@viel-zu.org> |
| Compatibility | OpenCV >= 4.7 |

Renders a rainbow cube on blueish background using OpenGL, applies a glow effect using OpenCV (optionally using OpenCL with native builds) and encodes the video (optionally using VAAPI and CL-VA interop with native builds).

\htmlinclude "../samples/example_v4d_cube-demo.html"

@include samples/cube-demo.cpp