korge/korlibs.korge.view.filter/SwizzleColorsFilter

SwizzleColorsFilter

class SwizzleColorsFilter(initialSwizzle: String = "rgba") : ShaderFilter

Allows to swizzle (interchange) color components via the swizzle property.

swizzle="rgba" would be the identity
swizzle="bgra" would interchange red and blue channels
swizzle="rrra" would show as greyscale the red component

Constructors

SwizzleColorsFilter

constructor(initialSwizzle: String = "rgba")

Types

object Companion

Properties

_programProvider

var _programProvider: ShaderFilter.ProgramProvider?

open val allFilters: List<Filter>

open override var filtering: Boolean

open val isIdentity: Boolean

programProvider

open override val programProvider: ShaderFilter.ProgramProvider

recommendedFilterScale

open val recommendedFilterScale: Double

var swizzle: String

The swizzling string

Functions

open override fun computeBorder(texWidth: Int, texHeight: Int): MarginInt

The number of pixels the passed texture should be bigger at each direction: left, right, top, left.

expandedBorderRectangle

fun Filter.expandedBorderRectangle(inp: Rectangle): Rectangle

fun Filter.getBorder(texWidth: Int, texHeight: Int): MarginInt

open override fun render(ctx: RenderContext, matrix: Matrix, texture: Texture, texWidth: Int, texHeight: Int, renderColorMul: RGBA, blendMode: BlendMode, filterScale: Double)

The method in charge of rendering the texture transformed using ctx and matrix. The method receives a texture that should be the original image with computeBorder additional pixels on each side.

renderToTextureWithBorder

fun Filter.~~renderToTextureWithBorder~~(ctx: RenderContext, matrix: Matrix, texture: Texture, texWidth: Int, texHeight: Int, filterScale: Double, block: (Texture, matrix: Matrix) -> Unit)

renderToTextureWithBorderUnsafe

fun Filter.renderToTextureWithBorderUnsafe(ctx: RenderContext, matrix: Matrix, texture: Texture, texWidth: Int, texHeight: Int, filterScale: Double, result: RenderToTextureResult = RenderToTextureResult()): RenderToTextureResult