WorldWind Kotlin/earth.worldwind.layer.sightline/SightlineReceiverUniforms

SightlineReceiverUniforms

class SightlineReceiverUniforms(enabled: Boolean)

The GL uniform-location + upload machinery every SightlineReceiverProgram needs, factored out of the 3D-Tiles mesh + points programs that each copy-pasted the identical field block, init resolution, and loadEnabled/loadDisabled bodies. A program owns one instance, resolves it in initProgram, and forwards its interface methods to it (see SightlineReceiverProgram).

enabled mirrors the program's sightlineEnabled flag and gates every method, so the no-sightline variants stay inert: init skips resolution (locations remain KglUniformLocation.NONE) and the load methods early-return.

Constructors

constructor(enabled: Boolean)

Properties

lastState

var lastState: SightlineState?

Identity of the last uploaded SightlineState — backs SightlineReceiverProgram.lastSightlineState.

Functions

init

fun init(gl: Kgl, program: KglProgram)

Resolve the receiver uniforms and seed their defaults. Call from the owning program's initProgram after the program links. No-op for the no-sightline variant.

loadDisabled

fun loadDisabled(gl: Kgl)

loadEnabled

fun loadEnabled(gl: Kgl, state: SightlineState, localMatrix: Matrix4)

Uploads the per-frame sightline scalars and colors plus the world -> local matrix.

loadLocalMatrix

fun loadLocalMatrix(gl: Kgl, localMatrix: Matrix4)

Uploads only the world -> local matrix (per-tile overlay path).