east Function – drawCall

const drawCall: (
  props: DrawCallProps,
) => 
| () => void
| { draw?: never, bounds?: never }
| { draw: (
    passEncoder: GPURenderPassEncoder,
    countGeometry: (v: number, t: number) => void,
    uniforms: Record<string, Ref<any>>,
    flip?: boolean,
  ) => void, bounds: 
  | DataBounds
  | () => DataBounds
  | { expr: () => DataBounds }
  | { current: DataBounds }
  | null
  | undefined }
| null

Source

packages / workbench / src / queue / draw-call.ts