Notes To Self - Steps To VL3

[MicBosi]

• wxWidget 3.x support (Support wxWidgets 3 #172)
• Rename vl::TextureSampler to vl::TextureImageUnit
• Removed extraneous deprecated TexParameterOverride dead code
• Textures: fix construction (Texture constructors and init functions are confusing #130)
• Textures: various updates (Texture management updates (requires update support GL 4.6) #189) (maybe later)
• Qt 6 support (Add Qt6 Support #190)
• FramebufferObject + Framebuffer unification + externallyManaged()
• Vector/Matrix updated init (Vector2/3/4 should get single scalar_type and scalar_type* constructors? #134)
• size_t for vl::Collection (vl::Collection should use size_t every where #138)
• vl::Rendering::renderers () should return a Collection: (vl::Rendering::renderers () should return a Collection #123)
• Merge PRs
• Final testing on Linux Ubuntu 20.04 and VS 2019
• Release 2.1 & docs updates

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• Remove GL ES
• Remove fixed function pipeline
  • Fix all broken things:
    • Text rendering support
    • Rework examples depending on fixed function and legacy matrix manipulation
    • Not sure we can still support vlVG
• Use OpenGLFunction object
• Upgrade to GL 4.6
• Final split of OpenGLWidget + OpenGLContext + OpenGLFunctions
  • Fix all broken things and UI bindings
  • Make sure GL resource sharing works
• Add GL 4.6 examples: compute shaders, etc.
• Test and fix on Mac GL 4.1

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• VL immediate mode support & examples (booklet)

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• [Add depth peeling demo
• Updated volume demo
• Updated fractal demo]

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• Bullet physics / PhysX demo test
• glTF support & viewer
• New documentation media