filament-utils/io.github.erkko68.filament.utils/IBLPrefilterContext

IBLPrefilterContext

class IBLPrefilterContext(engine: Engine) : AutoCloseable

Creates and initializes GPU state common to all environment map filters supported.

Typically, only one instance per Engine needs to exist.

Usage example:

val context = IBLPrefilterContext(engine)
val filter = IBLPrefilterContext.SpecularFilter(context)
val texture = filter(environmentCubemap)
val indirectLight = IndirectLight.Builder()
    .reflections(texture)
    .build(engine)

Constructors

IBLPrefilterContext

constructor(engine: Engine)

Types

EquirectangularToCubemap

class EquirectangularToCubemap(context: IBLPrefilterContext, config: IBLPrefilterContext.EquirectangularToCubemap.Config = Config()) : AutoCloseable

Converts an equirectangular image to a cubemap.

IrradianceFilter

class IrradianceFilter(context: IBLPrefilterContext, config: IBLPrefilterContext.IrradianceFilter.Config = Config()) : AutoCloseable

Generates an irradiance cubemap. An instance is needed per filter configuration.

Kernel

enum Kernel : Enum<IBLPrefilterContext.Kernel>

The filter kernel.

SpecularFilter

class SpecularFilter(context: IBLPrefilterContext, config: IBLPrefilterContext.SpecularFilter.Config = Config()) : AutoCloseable

Generates a prefiltered (specular) cubemap. An instance is needed per filter configuration.

Properties

nativeObject

val nativeObject: NativePointer

The native object, for interop with code calling the Fila* C API directly. Read-only: this wrapper owns it.

Functions

open override fun close()

Same as destroy; lets this be used with use { } and try-with-resources.

destroy

fun destroy()

Destroys all GPU resources created during initialization.