WorldWind Kotlin/earth.worldwind.render.program/SightlineProgram

SightlineProgram

class SightlineProgram : AbstractShaderProgram, SightlineReceiverProgram

Terrain overlay pass of the sightline: re-rasterises the visible terrain tiles and outputs the visible/occluded tint from SightlineReceiverGlsl's depth-cube PCF — the same receiver GLSL that embedded receivers (3D tiles) splice into their own programs, so the overlay and embedded tints resolve identically. Vertices arrive tile-origin-relative; the per-tile sightlineLocalMatrix is loaded via loadSightlineLocalMatrix.

Constructors

SightlineProgram

constructor()

Properties

lastSightlineState

open override var lastSightlineState: SightlineState?

programLength

val programLength: Int

Indicates the approximate size of the OpenGL resources referenced by this GPU program.

Functions

loadModelviewProjection

fun loadModelviewProjection(matrix: Matrix4)

loadSightlineDisabled

open override fun loadSightlineDisabled()

loadSightlineEnabled

open override fun loadSightlineEnabled(state: SightlineState, localMatrix: Matrix4)

loadSightlineLocalMatrix

fun loadSightlineLocalMatrix(matrix: Matrix4)

release

open override fun release(dc: DrawContext)

Frees any resources associated with this instance. After this method returns the rendering resource is invalid, and any associated GL object is deleted.

useProgram

fun useProgram(dc: DrawContext): Boolean