MacOS build - renderablevideosphere example does not work as intended #85
Description
MPV opens with another window, and OpenSpace console logs these errors -
2026-01-06 | 04:13:13.370 | SceneGraphNode | Debug | Initializing GL: RenderableVideoSphere_Example
-- | -- | -- | -- | --
2026-01-06 | 04:13:13.371 | Sphere | Debug | Creating object
2026-01-06 | 04:13:13.389 | VideoPlayer | Error | Libmpv API error: error accessing property
2026-01-06 | 04:13:13.389 | VideoPlayer | Warning | Error setting property 'gpu-api'
2026-01-06 | 04:13:13.389 | VideoPlayer | Error | Libmpv API error: property not found
2026-01-06 | 04:13:13.389 | VideoPlayer | Warning | Error setting property 'alpha'
2026-01-06 | 04:13:13.401 | VideoPlayer | Info | Creating new FBO with width: 2048 and height: 1024
2026-01-06 | 04:13:13.405 | SceneGraphNode | Debug | Finished initializating GL: RenderableVideoSphere_Example
2026-01-06 | 04:13:13.405 | GetPropertyTopic | Debug | Getting property 'Scene.RenderableVideoSphere_Example'...
2026-01-06 | 04:13:13.408 | Logging | Warning | Number of Warnings: 2
2026-01-06 | 04:13:13.408 | Logging | Warning | Number of Errors: 2
2026-01-06 | 04:13:15.760 | VideoPlayer | Info | Duration: 12.166666666666666