Module warp_mesh 

Warp mesh — regular grid of vertices for the per-vertex warp pass.

For each vertex we precompute:

• pos_clip (clip space [-1, 1]²) — fed straight through the vertex shader.
• uv_orig ([0, 1]²) — the unwarped texture coordinate. Used as x, y inputs to per-vertex equations, and as the rasterizer-stable basis from which the warped UV is derived each frame.
• rad, ang — polar coordinates in MilkDrop’s convention (rad = 0 at center, rad = 1 at corners; ang ∈ [0, 2π)).

The dynamic per-frame quantity (warped UV) lives in warp_pipeline::WarpVertex, produced by onedrop-engine::warp_eval.

Structs

WarpMesh

Regular cols × rows warp grid.

WarpMeshVertex

Static portion of one warp mesh vertex.