Interpolation

Types

• enum ASTCFormat
• enum AlphaMode
• enum CompressMode
• enum CompressSource
• enum Format
• enum UsedChannels

Type members

• static let maxHeight: Int

  The maximal height allowed for Image resources.

• static let maxWidth: Int

  The maximal width allowed for Image resources.

• static func create(width: Int32, height: Int32, useMipmaps: Bool, format: Image.Format) -> Image?

  Creates an empty image of given size and format. See Format constants. If useMipmaps is true, then generate mipmaps for this image. See the generateMipmaps(renormalize:).

• static func createFromData(width: Int32, height: Int32, useMipmaps: Bool, format: Image.Format, data: PackedByteArray) -> Image?

  Creates a new image of given size and format. See Format constants. Fills the image with the given raw data. If useMipmaps is true then loads mipmaps for this image from data. See generateMipmaps(renormalize:).

• static func loadFromFile(path: String) -> Image?

  Creates a new Image and loads data from the specified file.

• class var godotClassName: StringName

Instance members

• func adjustBcs(brightness: Double, contrast: Double, saturation: Double)
• func blendRect(src: Image?, srcRect: Rect2i, dst: Vector2i)

  Alpha-blends srcRect from src image to this image at coordinates dst, clipped accordingly to both image bounds. This image and src image must have the same format. srcRect with non-positive size is treated as empty.

• func blendRectMask(src: Image?, mask: Image?, srcRect: Rect2i, dst: Vector2i)

  Alpha-blends srcRect from src image to this image using mask image at coordinates dst, clipped accordingly to both image bounds. Alpha channels are required for both src and mask. dst pixels and src pixels will blend if the corresponding mask pixel’s alpha value is not 0. This image and src image must have the same format. src image and mask image must have the same size (width and height) but they can have different formats. srcRect with non-positive size is treated as empty.

• func blitRect(src: Image, srcRect: Rect2i, dst: Vector2i)

  Copies srcRect from src image to this image at coordinates dst, clipped accordingly to both image bounds. This image and src image must have the same format. srcRect with non-positive size is treated as empty.

• func blitRectMask(src: Image?, mask: Image?, srcRect: Rect2i, dst: Vector2i)

  Blits srcRect area from src image to this image at the coordinates given by dst, clipped accordingly to both image bounds. src pixel is copied onto dst if the corresponding mask pixel’s alpha value is not 0. This image and src image must have the same format. src image and mask image must have the same size (width and height) but they can have different formats. srcRect with non-positive size is treated as empty.

• func bumpMapToNormalMap(bumpScale: Double)

  Converts a bump map to a normal map. A bump map provides a height offset per-pixel, while a normal map provides a normal direction per pixel.

• func clearMipmaps()

  Removes the image’s mipmaps.

• func compress(mode: Image.CompressMode, source: Image.CompressSource, astcFormat: Image.ASTCFormat) -> GodotError

  Compresses the image to use less memory. Can not directly access pixel data while the image is compressed. Returns error if the chosen compression mode is not available.

• func compressFromChannels(mode: Image.CompressMode, channels: Image.UsedChannels, astcFormat: Image.ASTCFormat) -> GodotError

  Compresses the image to use less memory. Can not directly access pixel data while the image is compressed. Returns error if the chosen compression mode is not available.

• func computeImageMetrics(comparedImage: Image?, useLuma: Bool) -> GDictionary

  Compute image metrics on the current image and the compared image.

• func convert(format: Image.Format)

  Converts the image’s format. See Format constants.

• func copyFrom(src: Image?)

  Copies src image to this image.

• func crop(width: Int32, height: Int32)

  Crops the image to the given width and height. If the specified size is larger than the current size, the extra area is filled with black pixels.

• func decompress() -> GodotError

  Decompresses the image if it is VRAM compressed in a supported format. Returns ok if the format is supported, otherwise errUnavailable.

• func detectAlpha() -> Image.AlphaMode

  Returns .alphaBlend if the image has data for alpha values. Returns .alphaBit if all the alpha values are stored in a single bit. Returns .alphaNone if no data for alpha values is found.

• func detectUsedChannels(source: Image.CompressSource) -> Image.UsedChannels
• func fill(color: Color)

  Fills the image with color.

• func fillRect(Rect2i, color: Color)

  Fills rect with color.

• func fixAlphaEdges()

  Blends low-alpha pixels with nearby pixels.

• func flipX()

  Flips the image horizontally.

• func flipY()

  Flips the image vertically.

• func generateMipmaps(renormalize: Bool) -> GodotError

  Generates mipmaps for the image. Mipmaps are precalculated lower-resolution copies of the image that are automatically used if the image needs to be scaled down when rendered. They help improve image quality and performance when rendering. This method returns an error if the image is compressed, in a custom format, or if the image’s width/height is 0. Enabling renormalize when generating mipmaps for normal map textures will make sure all resulting vector values are normalized.

• func getData() -> PackedByteArray

  Returns a copy of the image’s raw data.

• func getFormat() -> Image.Format

  Returns the image’s format. See Format constants.

• func getHeight() -> Int32

  Returns the image’s height.

• func getMipmapCount() -> Int32

  Returns the number of mipmap levels or 0 if the image has no mipmaps. The largest main level image is not counted as a mipmap level by this method, so if you want to include it you can add 1 to this count.

• func getMipmapOffset(mipmap: Int32) -> Int32

  Returns the offset where the image’s mipmap with index mipmap is stored in the data dictionary.

• func getPixel(x: Int32, y: Int32) -> Color

  Returns the color of the pixel at (x, y).

• func getPixelv(point: Vector2i) -> Color

  Returns the color of the pixel at point.

• func getRegion(Rect2i) -> Image?

  Returns a new Image that is a copy of this Image’s area specified with region.

• func getSize() -> Vector2i

  Returns the image’s size (width and height).

• func getUsedRect() -> Rect2i

  Returns a Rect2i enclosing the visible portion of the image, considering each pixel with a non-zero alpha channel as visible.

• func getWidth() -> Int32

  Returns the image’s width.

• func hasMipmaps() -> Bool

  Returns true if the image has generated mipmaps.

• func isCompressed() -> Bool

  Returns true if the image is compressed.

• func isEmpty() -> Bool

  Returns true if the image has no data.

• func isInvisible() -> Bool

  Returns true if all the image’s pixels have an alpha value of 0. Returns false if any pixel has an alpha value higher than 0.

• func load(path: String) -> GodotError

  Loads an image from file path. See Supported image formats for a list of supported image formats and limitations.

• func loadBmpFromBuffer(PackedByteArray) -> GodotError

  Loads an image from the binary contents of a BMP file.

• func loadJpgFromBuffer(PackedByteArray) -> GodotError

  Loads an image from the binary contents of a JPEG file.

• func loadKtxFromBuffer(PackedByteArray) -> GodotError

  Loads an image from the binary contents of a KTX file. Unlike most image formats, KTX can store VRAM-compressed data and embed mipmaps.

• func loadPngFromBuffer(PackedByteArray) -> GodotError

  Loads an image from the binary contents of a PNG file.

• func loadSvgFromBuffer(PackedByteArray, scale: Double) -> GodotError

  Loads an image from the UTF-8 binary contents of an uncompressed SVG file (.svg).

• func loadSvgFromString(svgStr: String, scale: Double) -> GodotError

  Loads an image from the string contents of a SVG file (.svg).

• func loadTgaFromBuffer(PackedByteArray) -> GodotError

  Loads an image from the binary contents of a TGA file.

• func loadWebpFromBuffer(PackedByteArray) -> GodotError

  Loads an image from the binary contents of a WebP file.

• func normalMapToXy()

  Converts the image’s data to represent coordinates on a 3D plane. This is used when the image represents a normal map. A normal map can add lots of detail to a 3D surface without increasing the polygon count.

• func premultiplyAlpha()

  Multiplies color values with alpha values. Resulting color values for a pixel are (color * alpha)/256. See also blendMode.

• func resize(width: Int32, height: Int32, interpolation: Image.Interpolation)

  Resizes the image to the given width and height. New pixels are calculated using the interpolation mode defined via Interpolation constants.

• func resizeToPo2(square: Bool, interpolation: Image.Interpolation)

  Resizes the image to the nearest power of 2 for the width and height. If square is true then set width and height to be the same. New pixels are calculated using the interpolation mode defined via Interpolation constants.

• func rgbeToSrgb() -> Image?

  Converts a standard RGBE (Red Green Blue Exponent) image to an sRGB image.

• func rotate180()

  Rotates the image by 180 degrees. The width and height of the image must be greater than 1.

• func rotate90(direction: ClockDirection)

  Rotates the image in the specified direction by 90 degrees. The width and height of the image must be greater than 1. If the width and height are not equal, the image will be resized.

• func saveExr(path: String, grayscale: Bool) -> GodotError

  Saves the image as an EXR file to path. If grayscale is true and the image has only one channel, it will be saved explicitly as monochrome rather than one red channel. This function will return errUnavailable if Godot was compiled without the TinyEXR module.

• func saveExrToBuffer(grayscale: Bool) -> PackedByteArray

  Saves the image as an EXR file to a byte array. If grayscale is true and the image has only one channel, it will be saved explicitly as monochrome rather than one red channel. This function will return an empty byte array if Godot was compiled without the TinyEXR module.

• func saveJpg(path: String, quality: Double) -> GodotError

  Saves the image as a JPEG file to path with the specified quality between 0.01 and 1.0 (inclusive). Higher quality values result in better-looking output at the cost of larger file sizes. Recommended quality values are between 0.75 and 0.90. Even at quality 1.00, JPEG compression remains lossy.

• func saveJpgToBuffer(quality: Double) -> PackedByteArray

  Saves the image as a JPEG file to a byte array with the specified quality between 0.01 and 1.0 (inclusive). Higher quality values result in better-looking output at the cost of larger byte array sizes (and therefore memory usage). Recommended quality values are between 0.75 and 0.90. Even at quality 1.00, JPEG compression remains lossy.

• func savePng(path: String) -> GodotError

  Saves the image as a PNG file to the file at path.

• func savePngToBuffer() -> PackedByteArray

  Saves the image as a PNG file to a byte array.

• func saveWebp(path: String, lossy: Bool, quality: Double) -> GodotError

  Saves the image as a WebP (Web Picture) file to the file at path. By default it will save lossless. If lossy is true, the image will be saved lossy, using the quality setting between 0.0 and 1.0 (inclusive). Lossless WebP offers more efficient compression than PNG.

• func saveWebpToBuffer(lossy: Bool, quality: Double) -> PackedByteArray

  Saves the image as a WebP (Web Picture) file to a byte array. By default it will save lossless. If lossy is true, the image will be saved lossy, using the quality setting between 0.0 and 1.0 (inclusive). Lossless WebP offers more efficient compression than PNG.

• func setData(width: Int32, height: Int32, useMipmaps: Bool, format: Image.Format, data: PackedByteArray)

  Overwrites data of an existing Image. Non-static equivalent of createFromData(width:height:useMipmaps:format:data:).

• func setPixel(x: Int32, y: Int32, color: Color)

  Sets the Color of the pixel at (x, y) to color.

• func setPixelv(point: Vector2i, color: Color)

  Sets the Color of the pixel at point to color.

• func shrinkX2()

  Shrinks the image by a factor of 2 on each axis (this divides the pixel count by 4).

• func srgbToLinear()

  Converts the raw data from the sRGB colorspace to a linear scale.