Native image datatype. Contains image data which can be converted to an [ImageTexture] and provides commonly used [i]image processing[/i] methods. The maximum width and height for an [Image] are [constant MAX_WIDTH] and [constant MAX_HEIGHT].
An [Image] cannot be assigned to a texture property of an object directly (such as [member Sprite2D.texture]), and has to be converted manually to an [ImageTexture] first.
Alpha-blends [param src_rect] from [param src] image to this image at coordinates [param dst], clipped accordingly to both image bounds. This image and [param src] image [b]must[/b] have the same format. [param src_rect] with non-positive size is treated as empty.
Alpha-blends [param src_rect] from [param src] image to this image using [param mask] image at coordinates [param dst], clipped accordingly to both image bounds. Alpha channels are required for both [param src] and [param mask]. [param dst] pixels and [param src] pixels will blend if the corresponding mask pixel's alpha value is not 0. This image and [param src] image [b]must[/b] have the same format. [param src] image and [param mask] image [b]must[/b] have the same size (width and height) but they can have different formats. [param src_rect] with non-positive size is treated as empty.
Copies [param src_rect] from [param src] image to this image at coordinates [param dst], clipped accordingly to both image bounds. This image and [param src] image [b]must[/b] have the same format. [param src_rect] with non-positive size is treated as empty.
Blits [param src_rect] area from [param src] image to this image at the coordinates given by [param dst], clipped accordingly to both image bounds. [param src] pixel is copied onto [param dst] if the corresponding [param mask] pixel's alpha value is not 0. This image and [param src] image [b]must[/b] have the same format. [param src] image and [param mask] image [b]must[/b] have the same size (width and height) but they can have different formats. [param src_rect] with non-positive size is treated as empty.
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.
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.
This is an alternative to [method compress] that lets the user supply the channels used in order for the compressor to pick the best DXT and ETC2 formats. For other formats (non DXT or ETC2), this argument is ignored.
For ASTC compression, the [param astc_format] parameter must be supplied.
Creates an empty image of given size and format. See [enum Format] constants. If [param use_mipmaps] is [code]true[/code], then generate mipmaps for this image. See the [method generate_mipmaps].
Creates a new image of given size and format. See [enum Format] constants. Fills the image with the given raw data. If [param use_mipmaps] is [code]true[/code] then loads mipmaps for this image from [param data]. See [method generate_mipmaps].
Crops the image to the given [param width] and [param height]. If the specified size is larger than the current size, the extra area is filled with black pixels.
Decompresses the image if it is VRAM compressed in a supported format. Returns [constant OK] if the format is supported, otherwise [constant ERR_UNAVAILABLE].
Returns [constant ALPHA_BLEND] if the image has data for alpha values. Returns [constant ALPHA_BIT] if all the alpha values are stored in a single bit. Returns [constant ALPHA_NONE] if no data for alpha values is found.
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 [code]0[/code]. Enabling [param renormalize] when generating mipmaps for normal map textures will make sure all resulting vector values are normalized.
It is possible to check if the image has mipmaps by calling [method has_mipmaps] or [method get_mipmap_count]. Calling [method generate_mipmaps] on an image that already has mipmaps will replace existing mipmaps in the image.
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.
Returns [code]true[/code] if all the image's pixels have an alpha value of 0. Returns [code]false[/code] if any pixel has an alpha value higher than 0.
Loads an image from file [param path]. See [url=$DOCS_URL/tutorials/assets_pipeline/importing_images.html#supported-image-formats]Supported image formats[/url] for a list of supported image formats and limitations.
[b]Warning:[/b] This method should only be used in the editor or in cases when you need to load external images at run-time, such as images located at the [code]user://[/code] directory, and may not work in exported projects.
See also [ImageTexture] description for usage examples.
[b]Note:[/b] This method is only available in engine builds with the BMP module enabled. By default, the BMP module is enabled, but it can be disabled at build-time using the [code]module_bmp_enabled=no[/code] SCons option.
Loads an image from the binary contents of a [url=https://github.com/KhronosGroup/KTX-Software]KTX[/url] file. Unlike most image formats, KTX can store VRAM-compressed data and embed mipmaps.
[b]Note:[/b] Godot's libktx implementation only supports 2D images. Cubemaps, texture arrays, and de-padding are not supported.
[b]Note:[/b] This method is only available in engine builds with the KTX module enabled. By default, the KTX module is enabled, but it can be disabled at build-time using the [code]module_ktx_enabled=no[/code] SCons option.
Loads an image from the UTF-8 binary contents of an [b]uncompressed[/b] SVG file ([b].svg[/b]).
[b]Note:[/b] Beware when using compressed SVG files (like [b].svgz[/b]), they need to be [code]decompressed[/code] before loading.
[b]Note:[/b] This method is only available in engine builds with the SVG module enabled. By default, the SVG module is enabled, but it can be disabled at build-time using the [code]module_svg_enabled=no[/code] SCons option.
Loads an image from the string contents of a SVG file ([b].svg[/b]).
[b]Note:[/b] This method is only available in engine builds with the SVG module enabled. By default, the SVG module is enabled, but it can be disabled at build-time using the [code]module_svg_enabled=no[/code] SCons option.
[b]Note:[/b] This method is only available in engine builds with the TGA module enabled. By default, the TGA module is enabled, but it can be disabled at build-time using the [code]module_tga_enabled=no[/code] SCons option.
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.
Multiplies color values with alpha values. Resulting color values for a pixel are [code](color * alpha)/256[/code]. See also [member CanvasItemMaterial.blend_mode].
Resizes the image to the given [param width] and [param height]. New pixels are calculated using the [param interpolation] mode defined via [enum Interpolation] constants.
Resizes the image to the nearest power of 2 for the width and height. If [param square] is [code]true[/code] then set width and height to be the same. New pixels are calculated using the [param interpolation] mode defined via [enum Interpolation] constants.
Rotates the image in the specified [param direction] by [code]90[/code] degrees. The width and height of the image must be greater than [code]1[/code]. If the width and height are not equal, the image will be resized.
Saves the image as an EXR file to [param path]. If [param grayscale] is [code]true[/code] and the image has only one channel, it will be saved explicitly as monochrome rather than one red channel. This function will return [constant ERR_UNAVAILABLE] if Godot was compiled without the TinyEXR module.
[b]Note:[/b] The TinyEXR module is disabled in non-editor builds, which means [method save_exr] will return [constant ERR_UNAVAILABLE] when it is called from an exported project.
Saves the image as an EXR file to a byte array. If [param grayscale] is [code]true[/code] 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.
[b]Note:[/b] The TinyEXR module is disabled in non-editor builds, which means [method save_exr] will return an empty byte array when it is called from an exported project.
Saves the image as a JPEG file to [param path] with the specified [param quality] between [code]0.01[/code] and [code]1.0[/code] (inclusive). Higher [param quality] values result in better-looking output at the cost of larger file sizes. Recommended [param quality] values are between [code]0.75[/code] and [code]0.90[/code]. Even at quality [code]1.00[/code], JPEG compression remains lossy.
[b]Note:[/b] JPEG does not save an alpha channel. If the [Image] contains an alpha channel, the image will still be saved, but the resulting JPEG file won't contain the alpha channel.
Saves the image as a JPEG file to a byte array with the specified [param quality] between [code]0.01[/code] and [code]1.0[/code] (inclusive). Higher [param quality] values result in better-looking output at the cost of larger byte array sizes (and therefore memory usage). Recommended [param quality] values are between [code]0.75[/code] and [code]0.90[/code]. Even at quality [code]1.00[/code], JPEG compression remains lossy.
[b]Note:[/b] JPEG does not save an alpha channel. If the [Image] contains an alpha channel, the image will still be saved, but the resulting byte array won't contain the alpha channel.
Saves the image as a WebP (Web Picture) file to the file at [param path]. By default it will save lossless. If [param lossy] is true, the image will be saved lossy, using the [param quality] setting between 0.0 and 1.0 (inclusive). Lossless WebP offers more efficient compression than PNG.
[b]Note:[/b] The WebP format is limited to a size of 16383×16383 pixels, while PNG can save larger images.
Saves the image as a WebP (Web Picture) file to a byte array. By default it will save lossless. If [param lossy] is true, the image will be saved lossy, using the [param quality] setting between 0.0 and 1.0 (inclusive). Lossless WebP offers more efficient compression than PNG.
[b]Note:[/b] The WebP format is limited to a size of 16383×16383 pixels, while PNG can save larger images.
The [url=https://en.wikipedia.org/wiki/S3_Texture_Compression]S3TC[/url] texture format that uses Block Compression 1, and is the smallest variation of S3TC, only providing 1 bit of alpha and color data being premultiplied with alpha.
[b]Note:[/b] When creating an [ImageTexture], an sRGB to linear color space conversion is performed.
The [url=https://en.wikipedia.org/wiki/S3_Texture_Compression]S3TC[/url] texture format that uses Block Compression 2, and color data is interpreted as not having been premultiplied by alpha. Well suited for images with sharp alpha transitions between translucent and opaque areas.
[b]Note:[/b] When creating an [ImageTexture], an sRGB to linear color space conversion is performed.
The [url=https://en.wikipedia.org/wiki/S3_Texture_Compression]S3TC[/url] texture format also known as Block Compression 3 or BC3 that contains 64 bits of alpha channel data followed by 64 bits of DXT1-encoded color data. Color data is not premultiplied by alpha, same as DXT3. DXT5 generally produces superior results for transparent gradients compared to DXT3.
[b]Note:[/b] When creating an [ImageTexture], an sRGB to linear color space conversion is performed.
Texture format that uses [url=https://www.khronos.org/opengl/wiki/Red_Green_Texture_Compression]Red Green Texture Compression[/url], normalizing the red channel data using the same compression algorithm that DXT5 uses for the alpha channel.
Texture format that uses [url=https://www.khronos.org/opengl/wiki/Red_Green_Texture_Compression]Red Green Texture Compression[/url], normalizing the red and green channel data using the same compression algorithm that DXT5 uses for the alpha channel.
Texture format that uses [url=https://www.khronos.org/opengl/wiki/BPTC_Texture_Compression]BPTC[/url] compression with unsigned normalized RGBA components.
[b]Note:[/b] When creating an [ImageTexture], an sRGB to linear color space conversion is performed.
Texture format that uses [url=https://www.khronos.org/opengl/wiki/BPTC_Texture_Compression]BPTC[/url] compression with signed floating-point RGB components.
Texture format that uses [url=https://www.khronos.org/opengl/wiki/BPTC_Texture_Compression]BPTC[/url] compression with unsigned floating-point RGB components.
[url=https://en.wikipedia.org/wiki/Ericsson_Texture_Compression#ETC1]Ericsson Texture Compression format 1[/url], also referred to as "ETC1", and is part of the OpenGL ES graphics standard. This format cannot store an alpha channel.
[url=https://en.wikipedia.org/wiki/Ericsson_Texture_Compression#ETC2_and_EAC]Ericsson Texture Compression format 2[/url] ([code]R11_EAC[/code] variant), which provides one channel of unsigned data.
[url=https://en.wikipedia.org/wiki/Ericsson_Texture_Compression#ETC2_and_EAC]Ericsson Texture Compression format 2[/url] ([code]SIGNED_R11_EAC[/code] variant), which provides one channel of signed data.
[url=https://en.wikipedia.org/wiki/Ericsson_Texture_Compression#ETC2_and_EAC]Ericsson Texture Compression format 2[/url] ([code]RG11_EAC[/code] variant), which provides two channels of unsigned data.
[url=https://en.wikipedia.org/wiki/Ericsson_Texture_Compression#ETC2_and_EAC]Ericsson Texture Compression format 2[/url] ([code]SIGNED_RG11_EAC[/code] variant), which provides two channels of signed data.
[url=https://en.wikipedia.org/wiki/Ericsson_Texture_Compression#ETC2_and_EAC]Ericsson Texture Compression format 2[/url] ([code]RGB8[/code] variant), which is a follow-up of ETC1 and compresses RGB888 data.
[b]Note:[/b] When creating an [ImageTexture], an sRGB to linear color space conversion is performed.
[url=https://en.wikipedia.org/wiki/Ericsson_Texture_Compression#ETC2_and_EAC]Ericsson Texture Compression format 2[/url] ([code]RGBA8[/code]variant), which compresses RGBA8888 data with full alpha support.
[b]Note:[/b] When creating an [ImageTexture], an sRGB to linear color space conversion is performed.
[url=https://en.wikipedia.org/wiki/Ericsson_Texture_Compression#ETC2_and_EAC]Ericsson Texture Compression format 2[/url] ([code]RGB8_PUNCHTHROUGH_ALPHA1[/code] variant), which compresses RGBA data to make alpha either fully transparent or fully opaque.
[b]Note:[/b] When creating an [ImageTexture], an sRGB to linear color space conversion is performed.
Performs bilinear interpolation. If the image is resized, it will be blurry. This mode is faster than [constant INTERPOLATE_CUBIC], but it results in lower quality.
Performs cubic interpolation. If the image is resized, it will be blurry. This mode often gives better results compared to [constant INTERPOLATE_BILINEAR], at the cost of being slower.
If the image does not have mipmaps, they will be generated and used internally, but no mipmaps will be generated on the resulting image.
[b]Note:[/b] If you intend to scale multiple copies of the original image, it's better to call [method generate_mipmaps]] on it in advance, to avoid wasting processing power in generating them again and again.
