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rewrite TextBuffer rendering logic, optimize, adopt VBOs #3138

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rewrite TextBuffer rendering logic, optimize, adopt VBOs #3138

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asiekierka
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What does this PR change?

  • Move from using display lists to VBOs for rendering TextBuffers, single-handedly improving performance by 2x!
  • Minor optimizations across the codebase, in many areas.

What are the downsides?

  • By default, the full font is currently loaded into a massive 16MB texture. This can probably be cut in half pretty easily - anything else would require massively complicating the VBO code.
  • The VBO code can probably be optimized a little further still.

@asiekierka asiekierka added this to the OC 1.8.0 milestone Jun 8, 2022
@asiekierka asiekierka mentioned this pull request Nov 5, 2022
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@asiekierka asiekierka modified the milestones: OC 1.8.0, OC 1.9.0 May 30, 2023
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