drawing apis

[mooreatv]

for curved lines/arcs/circles/bezier see

https://github.com/tomrus88/BlizzardInterfaceCode/blob/46d53f88664c14d16a702c0f68c1cd215d9efd14/Interface/AddOns/Blizzard_ArtifactUI/Blizzard_ArtifactPerks.lua

[mooreatv]

https://github.com/tomrus88/BlizzardInterfaceCode/blob/master/Interface/FrameXML/MixinUtil.lua

[mooreatv]

to beat the 16k textures limit look into

<TheDanW> wrote that awhile ago, but you might try having two child frames both with SetFlattensRenderLayers() and each of those child frames with your textures

see also https://gist.github.com/oratory/2970b452279f960d5797508b6897d0f4

[mooreatv]

cool I can get any number of textures, 16k at a time in this demo, 346,540 split among 30 frames

[mooreatv]

more info

<MooreaTv>TheDanW- is there a "really flattens" option, that would remove the children and make the frame a single layer/object (a bitmap/texture) or any way from lua to programatically construct a texture/bitmap [peek/poke to set pixel] ? (re the fps drop which seems to be because of sending those individual textures)
<TheDanW>MooreaTv: nope
<TheDanW> you can use lines with vertex offsets to construct arbitrary triangles, that's probably the most control you can get with the current api
<MooreaTv>bummer for the making or modifying pixels/textures in game/lua. I'm not familiar with vertex offsets, I guess it's Texture:SetVertexOffset  only usage I found so far is https://www.townlong-yak.com/framexml/live/PowerDependencyLine.lua#200 and I can't quite tell.. what it does :)
<TheDanW>oh yeah, can just work on textures, it adjusts the vertex of the quad by whatever you pass in, you can address each vert in the quad separately, so you can make triangles to build mesh-like textures, which might reduce the need for so many textures in the first place

[mooreatv]

need to look at https://www.townlong-yak.com/framexml/live/Spline.lua (and Vector2D/Vector3D)