Unigine.Image Class
The color of each pixel of an image is represented by the Pixel structure. Pixel format is determined by the image file format (see the table below).
Image type | Pixel format |
---|---|
8-bit unsigned formats: R8, RG8, RGB8, RGBA8 |
Pixel color components are in range from 0 to 255. E.g. Pixel(10, 10, 255, 255) for RGBA8 Color components are accessed via Pixel.i |
16-bit unsigned formats: R16, RG16, RGB16, RGBA16 |
Pixel color components are in range from 0 to 65535. Color components are accessed via Pixel.i |
16-bit float formats: R16F, RG16F, RGB16F, RGBA16F |
Pixel color components are in range from 0.0f to 1.0f. Color components are accessed via Pixel.i |
32-bit float formats: R32F, RG32F, RGB32F, RGBA32F |
Pixel color components are in range from 0.0f to 1.0f. Color components are accessed via Pixel.f |
Usage example#
// AppWorldLogic.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Unigine;
namespace UnigineApp
{
class AppWorldLogic : WorldLogic
{
/* .. */
public override bool Init()
{
// image size parameters
const int ASPECT_RATIO = 1;
const int width = 256;
const int height = width / ASPECT_RATIO;
Image image = new Image();
// creating an image of the specified size
image.create2D(width, height, Image.FORMAT_RGBA8);
// declaring a pixel to store color information
Image.Pixel pixel = new Image.Pixel();
for (int x = 0; x < width; x++)
for (int y = 0; y < height; y++)
{
// setting pixel components
pixel.i.r = x;
pixel.i.g = 0;
pixel.i.b = 0;
pixel.i.a = 195;
// setting the color of the image pixel at (x,y)
image.set2D(x, y, pixel);
}
// setting our image as an albedo texture of the ground_grid material
Material material = Materials.findMaterial("ground_grid");
material.setTextureImage(material.findTexture("albedo"), image);
// saving our image to a *.DDS file
image.save("myimage.dds");
// printing current image format to the console
Log.Message("\nImage format: {0}", image.getFormatName());
// converting our image to the 32-bit float format
image.convertToFormat(Image.FORMAT_RGBA32F);
// printing image format after conversion to the console
Log.Message("\nImage format after conversion: {0}", image.getFormatName());
// getting the first pixel for each row of the image and printing its color value to the console
for (int x = 0; x < width; x++)
{
pixel = image.get2D(x, 0);
Log.Message("\nPixel ({0}, 0) color = ({1}, {2}, {3}, {4})", x, pixel.f.r, pixel.f.g, pixel.f.b, pixel.f.a);
}
// clearing the image
image.clear();
return 1;
}
/* .. */
}
}
Image Class
Properties
int NumChannels#
The number of image channels.
int Type#
A numerical code of the image type.
string TypeName#
An image type name.
int NumMipmaps#
The number of mipmaps stored with the image.
int NumLayers#
The number of layers in the image.
int NumFaces#
The number of faces in the image.
bool IsLoaded#
A value indicating whether the image is loaded.
int BlockSize#
The compressed image block size.
int PixelSize#
The uncompressed image pixel size.
bool IsCubeType#
A value indicating if the image is cube image.
bool IsArrayType#
A value indicating if the image is of an array type (see *_ARRAY variables).
bool Is3DType#
A value indicating if the image is a 3d image.
bool Is2DType#
A value indicating if the image is a 2d image.
int Format#
A numerical code of the image format.
string FormatName#
An image format name.
int Width#
Returns the image width, in pixels.
int Height#
Returns the image height, in pixels.
int Depth#
Returns the image depth, in pixels.
uint PixelsSize#
Returns the size of all pixels of the image.
Members
static Image ( ) #
Default constructor. An empty instance with default parameters is created.static Image ( string name ) #
Constructor. Creates an image loading data from the specified file.Arguments
- string name - Image file name.
static Image ( Image image ) #
Constructor. Creates an image by copying a given source image.Arguments
- Image image - Source image.
bool AllocData ( bool clear = true ) #
Allocates memory for the image data.Arguments
- bool clear - Clear flag: set true to fill allocated memory with zero-values; otherwise, set false.
Return value
true if memory for the image data is allocated successfully; otherwise, false.void ClearData ( ) #
Clears all image data.bool Set ( int channel, int value ) #
Sets a value for a given image channel. Compressed and combined image formats are not supported.Arguments
- int channel - Channel number in range from 0 to number of channels - 1.
- int value - Value in range from 0 to 255 (8-bit formats) or from 0 to 65535 (16-bit formats).
Return value
true if the value is set successfully; otherwise, false.vec4 get ( ivec2 coord, int offset ) #
Returns image data for the specified pixel coordinates and mipmap offset as a four-component vector.Arguments
- ivec2 coord - Pixel coordinates (X, Y) - X in range [0; width], Y in range [0; height].
- int offset - Mipmap offset value.
Return value
A vec4 vector (R, G, B, A) containing image data for the specified pixel coordinates, with components normalized in the [0.0f; 1.0f] range.void get ( ivec2 coord, int offset, out vec4 p00, out vec4 p01, out vec4 p10, out vec4 p11 ) #
Returns image data for the specified pixel coordinates and mipmap offset (along with neighboring pixels) as a set of four-component vectors.Arguments
- ivec2 coord - Pixel coordinates (X, Y) - X in range [0; width], Y in range [0; height].
- int offset - Mipmap offset value.
- out vec4 p00 - A vec4 vector (R, G, B, A) containing image data for the specified pixel coordinates (X, Y), with components normalized in the [0.0f; 1.0f] range.
- out vec4 p01 - A vec4 vector (R, G, B, A) containing image data for the neighboring pixel coordinates (X, Y+1), with components normalized in the [0.0f; 1.0f] range.
- out vec4 p10 - A vec4 vector (R, G, B, A) containing image data for the neighboring pixel coordinates (X+1, Y), with components normalized in the [0.0f; 1.0f] range.
- out vec4 p11 - A vec4 vector (R, G, B, A) containing image data for the neighboring pixel coordinates (X+1, Y+1), with components normalized in the [0.0f; 1.0f] range.
void Get8F ( ivec2 coord, out vec4 p ) #
Returns a set of 8-bit float values stored in the specified image pixel and neighboring ones and puts them to the output vector.Arguments
- ivec2 coord - Pixel coordinates (X, Y) - X in the [0; width] range, Y in the [0; height] range.
- out vec4 p - Output vec4 vector (P00, P01, P10, P11) to receive 8-bit float values stored in the specified image pixel and neighboring ones:
- P00 - (X, Y)
- P01 - (X, Y+1)
- P10 - (X+1, Y)
- P11 - (X+1, Y+1)
Values are normalized in the [0.0f; 1.0f] range.
float Get8F ( ivec2 coord ) #
Returns an 8-bit float value stored in the specified pixel of the image.Arguments
- ivec2 coord - Pixel coordinates (X, Y) - X in the [0; width] range, Y in the [0; height] range.
Return value
An 8-bit float value stored in the specified pixel of the image normalized in the [0.0f; 1.0f] range.void Get16F ( ivec2 coord, out vec4 p ) #
Returns a set of 16-bit float values stored in the specified image pixel and neighboring ones and puts them to the output vector.Arguments
- ivec2 coord - Pixel coordinates (X, Y) - X in the [0; width] range, Y in the [0; height] range.
- out vec4 p - Output vec4 vector (P00, P01, P10, P11) to receive 16-bit float values stored in the specified image pixel and neighboring ones:
- P00 - (X, Y)
- P01 - (X, Y+1)
- P10 - (X+1, Y)
- P11 - (X+1, Y+1)
Values are normalized in the [0.0f; 1.0f] range.
float Get16F ( ivec2 coord ) #
Returns a 16-bit float value stored in the specified pixel of the image.Arguments
- ivec2 coord - Pixel coordinates (X, Y) - X in the [0; width] range, Y in the [0; height] range.
Return value
A 16-bit float value stored in the specified pixel of the image normalized in the [0.0f; 1.0f] range.void Get32F ( ivec2 coord, out vec4 p ) #
Returns a set of 32-bit float values stored in the specified image pixel and neighboring ones and puts them to the output vector.Arguments
- ivec2 coord - Pixel coordinates (X, Y) - X in the [0; width] range, Y in the [0; height] range.
- out vec4 p - Output vec4 vector (P00, P01, P10, P11) to receive 32-bit float values stored in the specified image pixel and neighboring ones:
- P00 - (X, Y)
- P01 - (X, Y+1)
- P10 - (X+1, Y)
- P11 - (X+1, Y+1)
Values are normalized in the [0.0f; 1.0f] range.
float Get32F ( ivec2 coord ) #
Returns a 32-bit float value stored in the specified pixel of the image.Arguments
- ivec2 coord - Pixel coordinates (X, Y) - X in the [0; width] range, Y in the [0; height] range.
Return value
A 32-bit float value stored in the specified pixel of the image normalized in the [0.0f; 1.0f] range.void Set2D ( int x, int y, Pixel p ) #
Sets a color for a given pixel of a 2D image. Compressed formats are not supported.Arguments
- int x - X integer coordinate of a pixel in range [0; width].
- int y - Y integer coordinate of a pixel in range [0; height].
- Pixel p
Pixel Get2D ( int x, int y ) #
Returns a color of a given pixel of a 2D image. Compressed formats are not supported.Arguments
- int x - X integer coordinate of a pixel in range [0; width].
- int y - Y integer coordinate of a pixel in range [0; height].Y coordinate of a pixel. Must be of the same type as x:
Return value
Pixel color represented by a Pixel structure.Pixel Get2D ( float x, float y ) #
Returns a color of a given pixel of a 2D image. Linear interpolation is used to get a color sample. Compressed formats are not supported.Arguments
- float x - X float coordinate of a pixel in range [0.0f; 1.0f].
- float y - Y float coordinate of a pixel in range [0.0f; 1.0f].
Return value
Pixel color represented by a Pixel structure.Pixel Get2D ( float x, float y, Pixel skip_pixel ) #
Returns a color of a given pixel of a 2D image. Linear interpolation is used to get a color sample. Compressed formats are not supported.If at least one of four interpolated pixels is equal to skip_pixel, the method will return skip_pixel.
Arguments
- float x - X float coordinate of a pixel in range [0.0f; 1.0f].
- float y - Y float coordinate of a pixel in range [0.0f; 1.0f].
- Pixel skip_pixel - Skip pixel color represented by a Pixel structure.
Return value
Pixel color represented by a Pixel structure.void Set2DArray ( int x, int y, int layer, Pixel p ) #
Sets a color of a given pixel. The image must be a 2D image array. Compressed formats are not supported.Arguments
- int x - X integer coordinate of a pixel in range [0; width].
- int y - Y integer coordinate of a pixel in range [0; height].
- int layer - Image layer number.
- Pixel p - Pixel color represented by a Pixel structure.
Pixel Get2DArray ( int x, int y, int layer ) #
Returns a color of a given pixel. The image must be a 2D texture array. Compressed formats are not supported.Arguments
- int x - Y integer coordinate of a pixel in range [0; height].
- int y - Y integer coordinate of a pixel in range [0; height].
- int layer - X integer coordinate of a pixel in range [0; width].
Return value
Pixel color represented by a Pixel structure.Pixel Get2DArray ( float x, float y, int layer ) #
Returns a color of a given pixel. The image must be a 2D image array. Compressed formats are not supported. Linear interpolation is used to get a color sample.Arguments
- float x - X float coordinate of a pixel in range [0.0f; 1.0f].
- float y - Y float coordinate of a pixel in range [0.0f; 1.0f].
- int layer - Image layer number.
Return value
Pixel color represented by a Pixel structure.void Set3D ( int x, int y, int z, Pixel p ) #
Sets a color of a given pixel of a 3D image. Compressed formats are not supported.Arguments
- int x - X integer coordinate of a pixel in range [0; width].
- int y - Y integer coordinate of a pixel in range [0; height].
- int z - Z integer coordinate of a pixel in range [0; depth].
- Pixel p - Pixel color represented by a Pixel structure.
Pixel Get3D ( float x, float y, float z ) #
Returns a color of a given pixel of a 3D image. Linear interpolation is used to get a color sample. Compressed formats are not supported.Arguments
- float x - X float coordinate of a pixel in range [0.0f; 1.0f].
- float y - Y float coordinate of a pixel in range [0.0f; 1.0f].
- float z - Z float coordinate of a pixel in range [0.0f; 1.0f].
Return value
Pixel color represented by a Pixel structure.Pixel Get3D ( int x, int y, int z ) #
Returns a color of a given pixel of a 3D image. Compressed formats are not supported.Arguments
- int x - X integer coordinate of a pixel in range [0; width].
- int y - Y integer coordinate of a pixel in range [0; height].
- int z - Z integer coordinate of a pixel in range [0; depth].
Return value
Pixel color represented by a Pixel structure.Pixel Get3DSmooth ( float x, float y, float z ) #
Returns a color of a given pixel obtained using linear interpolation. Compressed formats are not supported.This method returns pixel color with float components in the range [0.0f, 1.0f] regardless of the image format.
Arguments
- float x - X float coordinate of a pixel in range [0.0f; 1.0f].
- float y - Y float coordinate of a pixel in range [0.0f; 1.0f].
- float z - Z float coordinate of a pixel in range [0.0f; 1.0f].
Return value
Pixel color represented by a Pixel structure with float components in the range [0.0f, 1.0f].bool IsBCCompressedFormat ( ) #
Returns a value indicating if the image is compressed via GPU-accelerated DXT compression (DXT1, DXT1A, DXT3, DXT5, ATI1, ATI2 formats).Return value
1 if the image is BC compressed; otherwise, 0.bool IsBCCompressedFormat ( int format ) #
Returns a value indicating if a given format is a format using GPU-accelerated DXT compression (DXT1, DXT1A, DXT3, DXT5, ATI1 or ATI2).Arguments
- int format - Image format identifier. See the FORMAT_* variables.
Return value
1 if the specified format is a format using GPU-accelerated DXT compression; otherwise, 0.bool IsCombinedFormat ( ) #
Returns a value indicating if the image is stored in a combined format (RGB565, RGBA4, RGB5A1 or RGB10A2).Return value
1 if the image is in combined format; otherwise, 0.bool IsCombinedFormat ( int format ) #
Returns a value indicating if a given format is a combined format (RGB565, RGBA4, RGB5A1 or RGB10A2).Arguments
- int format - Image format identifier. See the FORMAT_* variables.
Return value
1 if the specified format is a combined format; otherwise, 0.bool IsCompressedFormat ( ) #
Returns a value indicating if the image is stored in a compressed format (DXT1, DXT3, DXT5, ATI1, ATI2, ZLC1 or ZLC2).Return value
1 if the image is in a compressed format; otherwise, 0.bool IsCompressedFormat ( int format ) #
Returns a value indicating if a given format is a compressed format (DXT1, DXT3, DXT5, ATI1, ATI2, ZLC1 or ZLC2).Arguments
- int format - Image format identifier. See the FORMAT_* variables.
Return value
1 if the specified format is a compressed format; otherwise, 0.void SetCube ( int x, int y, int face, Pixel p ) #
Sets a color of a given pixel. The image must be of the Cube type. Compressed formats are not supported.Arguments
- int x - X integer coordinate of a pixel in range [0; depth].
- int y - Y integer coordinate of a pixel in range [0; height].
- int face - Face number in range from 0 to 5.
- Pixel p - Pixel color represented by a Pixel structure.
Pixel GetCube ( vec3 direction ) #
Returns a color of a given pixel. The image must be of the Cube type. Compressed formats are not supported.Arguments
- vec3 direction - Cube direction vector used for color sampling.
Return value
Pixel color represented by a Pixel structure.Pixel GetCube ( float x, float y, int face ) #
Returns a color of a given pixel. The image must be of the Cube type. Compressed formats are not supported.Arguments
- float x - X float coordinate of a pixel in range [0.0f; 1.0f].
- float y - Y float coordinate of a pixel in range [0.0f; 1.0f].
- int face - Face number in range from 0 to 5.
Return value
Pixel color represented by a Pixel structure.Pixel GetCube ( int x, int y, int face ) #
Returns a color of a given pixel. The image must be of the Cube type. Compressed formats are not supported.Arguments
- int x - X integer coordinate of a pixel in range [0; width].
- int y - Y integer coordinate of a pixel in range [0; height].
- int face - Face number in range from 0 to 5.
Return value
Pixel color represented by a Pixel structure.void SetCubeArray ( int x, int y, int face, int layer, Pixel p ) #
Sets a color of a given pixel. The image must be of the Cube Array type. Compressed formats are not supported.Arguments
- int x - X integer coordinate of a pixel in range [0; width].
- int y - Y integer coordinate of a pixel in range [0; height].
- int face - Face number in range from 0 to 5.
- int layer - Image layer number.
- Pixel p - Pixel color represented by a Pixel structure.
Pixel GetCubeArray ( vec3 direction, int layer ) #
Returns the color of a given pixel of the cube array image.Compressed formats are not supported.
Arguments
- vec3 direction - Cube direction vector used for color sampling.
- int layer - Image layer number.
Return value
Pixel color represented by a Pixel structure.Pixel GetCubeArray ( int v1, int v2, int face, int layer ) #
Returns a color of a given pixel. The image must be of the Cube Array type. Compressed formats are not supported.Arguments
- int v1 - X integer coordinate of a pixel in range [0;width].
- int v2 - Y integer coordinate of a pixel in range [0; height].
- int face - Face number in range from 0 to 5.
- int layer - Image layer number.
Return value
Pixel color represented by a Pixel structure.Pixel GetCubeArray ( float v1, float v2, int face, int layer ) #
Returns a color of a given pixel. The image must be of the Cube Array type. Compressed formats are not supported.Arguments
- float v1 - X integer coordinate of a pixel in range [0;width].
- float v2 - Y integer coordinate of a pixel in range [0;height].
- int face - Face number in range from 0 to 5.
- int layer - Image layer number.
Return value
Pixel color represented by a Pixel structure.int GetDepth ( int level = 0 ) #
Returns the image depth on a given mipmap level.Arguments
- int level - Mipmap level in range from 0 to the total number of mipmaps. This is an optional argument.
Return value
Image depth if the image exists (its depth is larger than 0); otherwise, 1.bool IsFloatFormat ( ) #
Returns a value indicating if the image is stored in a float format (R32F, RG32F, RGB32F or RGBA32F).Return value
1 if the image is in float format; otherwise, 0 is returned.bool IsFloatFormat ( int format ) #
Returns a value indicating if a given format is a float format (R32F, RG32F, RGB32F or RGBA32F).Arguments
- int format - Image format identifier. See the FORMAT_* variables.
Return value
1 if the specified format is a float format; otherwise, 0.static int GetFormat ( int num_channels, int format ) #
Returns a numerical code of the image format for the specified format and number of channels.Arguments
- int num_channels - Number of channels in the [1; 4] range.
- int format - Numerical code of the image format. See the FORMAT_* variables.
Return value
Numerical code of the image format for the specified number of channels.string GetFormatName ( int format ) #
Returns the name of the image format by the given format ID.Arguments
- int format - Image format identifier. See the FORMAT_* variables.
Return value
Image format name. The following values can be returned: R8, RG8, RGB8, RGBA8, R16, RG16, RGB16, RGBA16, R16F, RG16F, RGB16F, RGBA16F, R32F, RG32F, RGB32F, RGBA32F, RGB565, RGBA4, RGB5A1, RGB10A2, DXT1, DXT3, DXT5, ATI1, ATI2, ZLC1, ZLC2.bool IsHalfFormat ( ) #
Returns a value indicating if the image is stored in a half-float format (R16F, RG16F, RGB16F or RGBA16F).Return value
1 if the image is in half-float format; otherwise, 0.bool IsHalfFormat ( int format ) #
Returns a value indicating if a given format is a half-float format (R16F, RG16F, RGB16F or RGBA16F).Arguments
- int format - Image format identifier. See the FORMAT_* variables.
Return value
1 if the specified format is a half-float format; otherwise, 0.int GetHeight ( int level = 0 ) #
Returns image height on a given mipmap level.Arguments
- int level - Mipmap level in range from 0 to the total number of mipmaps. This is an optional argument.
Return value
Image height if the image exists (its height is larger than 0); otherwise, 1.uint GetOffset ( int level ) #
Returns the image offset on a given mipmap level.Arguments
- int level - Mipmap level in range from 0 to the total number of mipmaps.
Return value
Image offset, in bytes.void SetPixels ( byte[] pixels ) #
Sets image pixels by copying data from a given source array.Arguments
- byte[] pixels - Source array.
int SetPixels ( Blob blob ) #
Sets image pixels by copying data from a given source blob.Arguments
- Blob blob - Source blob containing image data to be copied.
Return value
1 if image data is set successfully; otherwise, 0.byte[] GetPixels ( ) #
Returns the pointer to the array of pixels.Return value
Pointer to the array of pixels.void GetPixels ( Blob blob ) #
Copies the image data to a given target blob.Arguments
- Blob blob - Target blob.
byte[] GetPixels2D ( int level = 0 ) #
Returns the pointer to the array of pixels with the given mipmap level for the 2D image.Arguments
- int level - Mipmap level in range from 0 to the total number of mipmaps. This is an optional argument.
Return value
Pointer to the array of pixels.byte[] GetPixels2DArray ( int layer, int level = 0 ) #
Returns the pointer to the array of pixels with the given mipmap level and image layer for the 2D Array image.Arguments
- int layer - Number of the image layer.
- int level - Mipmap level in range from 0 to the total number of mipmaps. This is an optional argument.
Return value
Pointer to the array of pixels.byte[] GetPixels3D ( int level = 0 ) #
Returns the pointer to the array of pixels with the given mipmap level for the 3D image.Arguments
- int level - Mipmap level in range from 0 to the total number of mipmaps. This is an optional argument.
Return value
Pointer to the array of pixels.byte[] GetPixelsCube ( int face, int level = 0 ) #
Returns the pointer to the array of pixels with the given mipmap level for the cube image.Arguments
- int face - Face number in range from 0 to 5.
- int level - Mipmap level in range from 0 to the total number of mipmaps. This is an optional argument.
Return value
Pointer to the array of pixels.byte[] GetPixelsCubeArray ( int face, int layer, int level = 0 ) #
Returns the pointer to the array of pixels with the given mipmap level and image layer for the Cube Array image.Arguments
- int face - Face number in range from 0 to 5.
- int layer - Number of the image layer.
- int level - Mipmap level in range from 0 to the total number of mipmaps. This is an optional argument.
Return value
Pointer to the array of pixels.static uint GetPixelsSize ( int format, int w, int h ) #
Returns the size of all pixels for the image of the specified format and size.Arguments
- int format - Image format identifier. See the FORMAT_* variables.
- int w - Image width, in pixels.
- int h - Image width, in pixels.
Return value
Size of all pixels of the specified image, in bytes.uint GetPixelsSize ( ) #
Returns the size of all pixels of the image.Return value
Size of all pixels of the image, in bytes.bool IsRawFormat ( ) #
Returns a value indicating if the image is uncompressed (stored in R8, RG8, RGB8, RGBA8, R16, RG16, RGB16, RGBA16, R16F, RG16F, RGB16F, RGBA16F, R32F, RG32F, RGB32F, RGBA32F, RGB565, RGBA4, RGB5A1 or RGB10A2 format).Return value
1 if the image is uncompressed; otherwise, 0.bool IsRawFormat ( int format ) #
Returns a value indicating if a given format is an uncompressed format (R8, RG8, RGB8, RGBA8, R16, RG16, RGB16, RGBA16, R16F, RG16F, RGB16F, RGBA16F, R32F, RG32F, RGB32F, RGBA32F, RGB565, RGBA4, RGB5A1 or RGB10A2).Arguments
- int format - Image format identifier. See the FORMAT_* variables.
Return value
1 if the specified format is an uncompressed format; otherwise, 0.uint GetSize ( ) #
Returns the current image size.Return value
Image size, in bytes.uint GetSize ( int level ) #
Returns the current image size.Arguments
- int level - Mipmap level in range from 0 to the total number of mipmaps.
Return value
Image size in bytes.uint GetStride ( int level = 0 ) #
Returns the image stride on a given mipmap level.Arguments
- int level - Mipmap level in range from 0 to the total number of mipmaps.
Return value
Image stride in bytes.uint GetDepthStride ( int level = 0 ) #
Returns the image depth stride on a given mipmap level.Arguments
- int level - Mipmap level in range from 0 to the total number of mipmaps.
Return value
Image depth stride in bytes.static string GetTypeName ( int type ) #
Returns the name of the image type by its identifier.Arguments
- int type - Image type. One of the IMAGE_* types.
Return value
Image type name: 2D for a 2D image, 3D for a 3D image, Cube for a cube image, 2D_Array for a 2D Array.bool IsUCharFormat ( ) #
Returns a value indicating if the image is stored in an unsigned char format (R8, RG8, RGB8, RGBA8, DXT1, DXT3, DXT5, ATI1 or ATI2).Return value
1 if the image is in unsigned char format; otherwise, 0.bool IsUCharFormat ( int format ) #
Returns a value indicating if a given format is an unsigned char format (R8, RG8, RGB8, RGBA8, DXT1, DXT3, DXT5, ATI1 or ATI2).Arguments
- int format - Image format identifier. See the FORMAT_* variables.
Return value
1 if the specified format is an unsigned char format; otherwise, 0.bool IsUShortFormat ( ) #
Returns a value indicating if the image is stored in an unsigned short format (R16, RG16, RGB16 or RGBA16).Return value
1 if the image is in unsigned short format; otherwise, 0.bool IsUShortFormat ( int format ) #
Returns a value indicating if a given format is an unsigned short format (R16, RG16, RGB16 or RGBA16).Arguments
- int format - Image format identifier. See the FORMAT_* variables.
Return value
1 if the specified format is an unsigned short format; otherwise, 0.int GetWidth ( int level = 0 ) #
Returns the image width on a given mipmap level.Arguments
- int level - Mipmap level in range from 0 to the total number of mipmaps. This is an optional argument.
Return value
Image width if the image exists (its width is larger than 0); otherwise, 1.bool IsZCompressedFormat ( ) #
Returns a value indicating if the image is stored in a ZLC1 or ZLC2 format (by ZLIB Image Compression).Return value
1 if the image is in a z compressed format; otherwise, 0.bool IsZCompressedFormat ( int format ) #
Returns a value indicating if a given format is a format using ZLIB image compression (ZLC1 or ZLC2).Arguments
- int format - Image format identifier. See the FORMAT_* variables.
Return value
1 if the specified format is a format using ZLIB image compression; otherwise, 0.bool Blend ( Image image, int x0, int y0, int x1, int y1, int width, int height, float scale = 1.0f, bool safe = 0 ) #
Blends the specified image with the current one. Blending takes place within a specified region. If the safe flag is set to 1, rendering of the blended images won't be performed outside the destination image boundaries. Compressed, combined, half-float and float formats are not supported. Images of different formats can be blended as follows:- R8 with R8, RG8;
- RG8 with RG8, RGB8;
- RGB8 with RGB8, RGBA8;
- RGBA8 with RGBA8 only;
- R16 with R16, RG16;
- RG16 with RG16, RGB16;
- RGB16 with RGB16, RGBA16;
- RGBA16 with RGBA16 only;
Arguments
- Image image - Source image to be blended with the current image.
- int x0 - X coordinate of a position in the current image.
- int y0 - Y coordinate of a position in the current image.
- int x1 - X coordinate of a position in a source image, which is blended with the current image.
- int y1 - Y coordinate of a position in a source image, which is blended with the current image.
- int width - Width of the blending region.
- int height - Height of the blending region.
- float scale - Scale of blending:
- If blended images are of the same format, the blended image is multiplied by scale value and is added to the destination image.
- If a source image has one more channel compared to the current one, it will serve as alpha value. This channel value is multiplied by scale and is used to alpha blend the images.
- The default scale value is 1.0f.
- bool safe - 1 for safe blending with respect to destination image boundaries; otherwise, 0.
Return value
Returns 1 if blending is successful; otherwise, 0.bool Blur ( int size ) #
Filters the image using two-pass Gaussian blur. Only the 2D or cube image can be resized. Compressed and combined image formats are not supported.Arguments
- int size - Blur filter size. It is the number of neighbouring source pixels (from all sides) that are averaged for each blurred destination pixel. For example, if blur = 2, two pixels from each side are taken and the blurring kernel is 5 x 5 pixels.
Return value
1 if the image was successfully blurred or the size of blur filter is 0; otherwise, 0.void Clear ( ) #
Clears all data associated with the image and resets its type, format, size to default. Also the number of image layers and mipmaps is set to 1.bool Combine ( int new_format = -1 ) #
Converts the image to a combined format. The following conversions are available:- RGB8 to RGB565
- RGBA8 to RGBA4 if the format is specified as RGBA4; otherwise, RGBA8 is converted to RGB5A1 by default
- RGBA16 to RGB10A2
Arguments
- int new_format - Combined format to convert the image into. This is an optional argument. If no format is specified, default conversion will be performed.
Return value
1 if the conversion into the combined format is successful; otherwise, 0.bool CombineMipmaps ( ) #
Combines the loaded 2D image with the mipmap image. Only one mipmap image can be combined. Compressed image formats cannot be combined.Return value
1 if the image and a mipmap are successfully combined; otherwise, 0.bool Compare ( Image image, int x0, int y0, int x1, int y1, int width, int height, int threshold = 0 ) #
Compares a region of a specified image with a specified region of the current image. Compressed, combined, half-float and float formats are not supported.Arguments
- Image image - Source image to compare the loaded image with.
- int x0 - X coordinate on the loaded image.
- int y0 - Y coordinate on the loaded image.
- int x1 - X coordinate on the source image.
- int y1 - Y coordinate on the source image.
- int width - Width of a region to compare.
- int height - Height of a region to compare.
- int threshold - A threshold to compare.
Return value
1 if the regions match; otherwise, 0.bool Compress ( int new_format = -1 ) #
Converts the image to a compressed format. The following conversions are available:- R8 to ATI1
- RG8 to ATI2
- RGB8 to DXT1
- RGBA8 to DXT3, DXT5(by default)
- ZLC1 to ZLC1
- ZLC2 to ZLC2
Arguments
- int new_format - Format to compress the image into. This is an optional argument. If no format is specified, default conversion will be performed.
Return value
1 if the image is compressed successfully; otherwise, 0.int ConvertToFormat ( int new_format ) #
Converts the image to a specified format. The following variants of conversion are possible:
Source format | Target format |
---|---|
DXT1 | DXT3, RGBA8, DXT5, ZLC1, ZLC2 |
DXT3 | DXT1, RGBA8 ZLC1, ZLC2 |
DXT5 | DXT1, RGBA8, ZLC1, ZLC2 |
ATI1 | R8, ATI2, ZLC1, ZLC2 |
ATI2 | RG8, ATI1, ZLC1, ZLC2 |
RGB565 | RGB8, DXT1, ZLC1, ZLC2 |
RGBA4 | RGBA8, DXT3, DXT5, ZLC1, ZLC2 |
RGB5A1 | RGBA8, DXT3, DXT5, ZLC1, ZLC2 |
RGB10A2 | RGBA16, ZLC1, ZLC2 |
R8 | ATI1, RG8, RGB8, RGBA8, R16, RG16, RGBA16, R32F, ATI2, DXT1, DXT3, DXT5, ZLC1, ZLC2 |
RG8 | ATI2, R8, RGB8, RGBA8, R16, RG16, RGBA16, RG32F, DXT1, DXT3, DXT5, ZLC1, ZLC2 |
RGB8 | R5G6B5, DXT1, R8, RG8, RGBA8, R16, RG16, RGBA16, RGB32F, ATI1, ATI2, DXT3, DXT5, ZLC1, ZLC2 |
RGBA8 | RGBA4, RGB5A1, R8, RG8, RGB8, R16, RG16, RGB16, RGBA16, RGBA32F, ATI1, ATI2, DXT1, DXT3, DXT5, ZLC1, ZLC2 |
R16 | R8, RG8, RGB8, RGBA8, RG16, RGBA16, R32F, ATI1, ATI2, DXT1, DXT3, DXT5, ZLC1, ZLC2 |
RG16 | R8, RG8, RGB8, RGBA8, R16, RGBA16, RG32F, ATI1, ATI2, DXT1, DXT3, DXT5, ZLC1, ZLC2 |
RGB16 | R8, RG8, RGB8, RGBA8, R16, RG16, RGBA16, RGB32F, ATI1, ATI2, DXT1, DXT3, DXT5, ZLC1, ZLC2 |
RGBA16 | RGB10A2, R8, RG8, RGB8, RGBA8, R16, RG16, RGBA32F, ATI1, ATI2, DXT1, DXT3, DXT5, ZLC1, ZLC2 |
R16F | RG16F, RGB16F, RGBA16F, R32F, RG32F, RGB32F, RGBA32F, ZLC1, ZLC2 |
RG16F | R16F, RGB16F, RGBA16F, R32F, RG32F, RGB32F, RGBA32F, ZLC1, ZLC2 |
RGB16F | R16F, RG16F, RGBA16F, R32F, RG32F, RGB32F, RGBA32F, ZLC1, ZLC2 |
RGBA16F | R16F, RG16F, RGB16F, R32F, RG32F, RGB32F, RGBA32F, ZLC1, ZLC2 |
R32F | R8, R16, R16F, RG16F, RGB16F, RGBA16F, RG32F, RGB32F, RGBA32F, ATI1, ZLC1, ZLC2 |
RG32F | RG8, RG16, R16F, RG16F, RGB16F, RGBA16F, R32F, RGB32F, RGBA32F, ATI2, ZLC1, ZLC2 |
RGB32F | RGB8, RGB16, R16F, RG16F, RGB16F, RGBA16F, R32F, RG32F, RGB32F, RGBA32F, DXT1, ZLC1, ZLC2 |
RGBA32F | RGBA8, RGBA16, R16F, RG16F, RGB16F, RGBA16F, R32F, RG32F, RGB32F, DXT3, DXT5, ZLC1, ZLC2 |
Arguments
- int new_format - Target format to convert the image into. See the IMAGE_FORMAT_* variables.
Return value
1 if the conversion is successful; otherwise, 0.int ConvertToType ( int type ) #
Converts the image to a specified type. The following conversions are possible:Source type | Target type | Target dimensions |
---|---|---|
2D (height should be proportional to width) | 3D | width × height × height/width |
2D (height should divide by four, width should divide by three) | Cube | width/4 × height/3 |
3D | 2D | width × height*depth |
3D | 2D texture array | width × height |
Cube | 2D | width*4 × height*3 |
Cube | 2D array texture | width × height |
2D array texture | 2D | width × height*number of texture layers |
Arguments
- int type - Type for conversion. One of the IMAGE_* types.
Return value
1 if the conversion is successful; otherwise, 0.bool AssignFrom ( Image src_image ) #
Copies the data from the specified source image. The size of the image shall be updated according to the size of the source image (unlike the resizeFrom() method).Arguments
- Image src_image - Source image.
Return value
true if the data was successfully copied from the source image; otherwise, false.bool ResizeFrom ( Image src_image ) #
Copies the data from the specified source image, resizing the source. The source image shall be resized (enlarged/shrinked) to fit the size of the image.Arguments
- Image src_image - Source image.
Return value
true if the data was successfully copied from the source image; otherwise, false.bool Copy ( Image src_image, int layer ) #
Copies data from the specified source image according to the specified layer parameter. Depending on the image and the source image types the layer parameter either defines the index of the layer/face to copy data FROM (source), or the index of the layer/face to copy data TO (destination):Image | Source Image | Copy |
---|---|---|
Cube | 2D | Specified source 2D image is copied to the face of the cubemap image specified by the layer argument in the [0; 5] range: 2D_image TO cubemap_face[ layer ] |
2D Array | 2D | Specified source 2D image is copied to the specified layer of the 2D image array: 2D image TO 2D_array[ layer ] |
Cube Array | Cube | Specified source cubemap image (all 6 faces) is copied to the specified layer of the cubemap image array: cubemap_image TO cubemap_array[ layer ] |
2D | Cube | Face of the source cubemap image specified by the layer argument in the [0; 5] range is copied to the 2D image: 2D_image FROM cubemap_face[ layer ] |
2D | 2D Array | Specified layer of the source 2D image array is copied to the 2D image: 2D image FROM 2D_array[ layer ] |
Cube | Cube Array | Specified layer of the source сubemap image array is copied to the cubemap image (all 6 faces): cubemap_image FROM cubemap_array[ layer ] |
src_image.Load(src_image_path);
src_image.ConvertToFormat(Image.FORMAT_RGB8);// 2D 1024x1024 image
dest_image.Create2DArray(1024, 1024, 5, Image.FORMAT_RGB8);
dest_image.Copy(src_image, 4); // created 2D image is copied to the 5th layer of the 2D image array
Arguments
- Image src_image - Source image.
- int layer - Zero-based index defining layer/face TO or FROM which the data is to be copied.
Return value
1 if the data is copied successfully; otherwise, 0.bool Copy ( Image src_image, int dest_channel, int src_channel ) #
Copies a given channel from the specified image to the specified image channel.Arguments
- Image src_image - Source image.
- int dest_channel
- int src_channel - Source channel.
Return value
true if the channel is copied successfully from the source image; otherwise, false.bool Copy ( Image src_image, int x_dst, int y_dst, int x_src, int y_src, int width, int height, bool safe = 0 ) #
Copies a data fragment with specified width, height, and coordinates from the source image.Arguments
- Image src_image - Source image, from which a fragment is to be copied.
- int x_dst - X coordinate of a position in the image, to which the data fragment is to be copied.
- int y_dst - Y coordinate of a position in the image, to which the data fragment is to be copied.
- int x_src - X coordinate of a position in a source image, starting from which the data fragment is to be copied.
- int y_src - Y coordinate of a position in a source image, starting from which the data fragment is to be copied.
- int width - Width of the fragment to be copied from the source image, in pixels.
- int height - Height of the fragment to be copied from the source image, in pixels.
- bool safe - 1 for safe copying with respect to destination image boundaries; otherwise, 0.
The safe flag doesn't provide safe copying with respect to source image boundaries.
Return value
true if the specified fragment was successfully copied from the source image; otherwise, false.bool CopyFast ( Image src_image, uint x_dst, uint y_dst, uint x_src, uint y_src, uint w, uint h ) #
Copies a data fragment with specified width, height, and coordinates from the source image.Arguments
- Image src_image - Source image, from which a fragment is to be copied.
- uint x_dst - X coordinate of a position in the image, to which the data fragment is to be copied.
- uint y_dst - Y coordinate of a position in the image, to which the data fragment is to be copied.
- uint x_src - X coordinate of a position in a source image, starting from which the data fragment is to be copied.
- uint y_src - Y coordinate of a position in a source image, starting from which the data fragment is to be copied.
- uint w - Width of the fragment to be copied from the source image, in pixels.
- uint h - Height of the fragment to be copied from the source image, in pixels.
Return value
true if the specified fragment was successfully copied from the source image; otherwise, false.bool Create2D ( int width, int height, int format, int num_mipmaps = 1, bool clear = 1, bool allocate = 1 ) #
Creates an empty 2D image filled with black color.Arguments
- int width - Required width, in pixels.
- int height - Required height, in pixels.
- int format - Required format. See the FORMAT_* variables.
- int num_mipmaps - Number of mipmaps to create. This is an optional argument. If the value is smaller than 1, an assertion is raised.
- bool clear - Positive number to fill the image with black color, 0 not to fill. This optional argument can be set to 0 if new data will fully overwrite the data existing in the memory.
- bool allocate - Positive number to allocate memory for the created image. This value should be always set to 1.
Return value
1 if 2D image is successfully created; otherwise, 0.bool Create2DArray ( int width, int height, int num_layers, int format, int num_mipmaps = 1, bool clear = 1, bool allocate = 1 ) #
Creates an empty 2D texture array filled with black color.Arguments
- int width - Required width, in pixels.
- int height - Required height, in pixels.
- int num_layers - Number of texture layers.
- int format - Required format. See the FORMAT_* variables.
- int num_mipmaps - Number of mipmaps to create. This is an optional argument. If the value is smaller than 1, an assertion is raised.
- bool clear - Positive number to fill the texture array with black color, 0 not to fill. This optional argument can be set to 0 if new data will fully overwrite the data existing in the memory.
- bool allocate - Positive number to allocate memory for the created image. This value should be always set to 1.
Return value
1 if 2D texture array is successfully created; otherwise, 0.bool Create3D ( int width, int height, int depth, int format, int num_mipmaps = 1, bool clear = 1, bool allocate = 1 ) #
Creates an empty 3D image filled with black color.Arguments
- int width - Required width, in pixels.
- int height - Required height, in pixels.
- int depth - Required depth.
- int format - Required format. See the IMAGE_FORMAT_* variables.
- int num_mipmaps - Number of mipmaps to create. This is an optional argument. If the value is smaller than 1, an assertion is raised.
- bool clear - Positive number to fill the image with black color, 0 not to fill. This optional argument can be set to 0 if new data will fully overwrite the data existing in the memory.
- bool allocate - Positive number to allocate memory for the created image. This value should be always set to 1.
Return value
1 if 3D image is successfully created; otherwise, 0.void Create3DTurbulence ( int size, float scale, int frequency, int seed ) #
Creates a 3D turbulence image (RGBA8).Arguments
- int size - 3D image size, in pixels. Width, height, and depth are equal.
- float scale - Scaling factor applied to the displacement amount.
- int frequency - Base frequency, determines how rapidly the displacement amount changes. Increasing this value creates more turbulence.
- int seed - Specifies the initial number used for noise generation. Different Seed values produce different random variations and can be useful in changing the result. Keep in mind, that you should use the same Seed value when you want to retain the same variations.
bool CreateCube ( int width, int height, int format, int num_mipmaps = 1, bool clear = 1, bool allocate = 1 ) #
Creates the empty cube image filled with black color.Arguments
- int width - Image width, in pixels.
- int height - Image height, in pixels.
- int format - Texture format. See the FORMAT_* variables.
- int num_mipmaps - Number of mipmaps to create. This is an optional argument.
- bool clear - 1 to fill the image with black color, 0 is not to fill. This optional argument can be set to 0 if new data will fully overwrite the data existing in the memory.
- bool allocate - 1 to allocate memory for the created image. This value should be always set to 1.
Return value
1 if the cube image is successfully created; otherwise, 0.bool CreateCubeArray ( int width, int height, int num_layers, int format, int num_mipmaps = 1, bool clear = 1, bool allocate = 1 ) #
Creates the empty cube array image filled with black color.Arguments
- int width - Image width, in pixels.
- int height - Image height, in pixels.
- int num_layers - Number of image layers.
- int format - Texture format. See the FORMAT_* variables.
- int num_mipmaps - Number of mipmaps to create. This is an optional argument.
- bool clear - 1 to fill the image with black color, 0 is not to fill. This optional argument can be set to 0 if new data will fully overwrite the data existing in the memory.
- bool allocate - 1 to allocate memory for the created image. This value should be always set to 1.
Return value
1 if the cube array image is successfully created; otherwise, 0.bool CreateMipmaps ( int filter = FILTER_LINEAR, float gamma = 1.0f ) #
Generates mipmaps for the image. Mipmaps cannot be created for compressed and combined image formats.Arguments
- int filter - Filter type to be used: box or point. The default filter is box. See the Unigine::Image Enumerations with FILTER_* prefixes at the end of the article.
- float gamma - Gamma correction value. If 1 is provided, no gamma correction is applied. This is an optional argument.
Return value
true if the mipmaps are generated successfully; otherwise, false.bool RemoveMipmaps ( ) #
Removes mipmaps generated for the image.Return value
true if mipmaps generated for the image are removed successfully; otherwise, false.bool Decombine ( ) #
Automatically converts the image from the combined format to a correct one. The following conversions are available:- RGB565 to RGB8
- RGBA4 to RGBA8
- RGB5A1 to RGBA8
- RGB10A2 to RGBA16
Return value
1 if the image is successfully converted from the combined format; otherwise, 0.bool DecombineMipmaps ( ) #
Decombines the loaded 2D-image and the mipmap images. The number of mipmaps must be larger than 1. Compressed image formats cannot be decombined.Return value
1 if the 2D-image and mipmap image are successfully decombined; otherwise, 0.bool Decompress ( ) #
Decompresses the image from the compressed format to a correct one. The following conversions are available:- DXT1 to RGB8
- DXT1 without alpha data to RGB8
- DXT3 to RGBA8
- DXT5 to RGBA8
- ATI1 to R8
- ATI2 to RG8
Return value
1 if the image was successfully decompressed; otherwise, 0.bool Extrude ( int pixels ) #
Extrudes contour of the image in the alpha=0 region on the given number of pixels. Only images of the RGBA8 and RGBA16 formats can be extruded.Arguments
- int pixels - Number of contour pixels.
Return value
1 if the image contour is successfully extruded; otherwise, 0.bool FlipX ( ) #
Flips the 2D image horizontally. Compressed and combined image formats are not supported.Return value
bool FlipY ( ) #
Flips the 2D image vertically. Compressed and combined image formats are not supported.Return value
1 if the image is successfully flipped; otherwise, 0.bool HasMipmaps ( ) #
Returns a value indicating if the source image has mipmaps.Return value
1 if the image has mipmaps; otherwise, 0.bool Info ( string file ) #
Returns information about the given image.Arguments
- string file - Name of the image file. The following file formats are supported: PSD, TGA, JPG, PNG, DDS.
Return value
1 if the operation was a success; otherwise, 0.bool Invert ( ) #
Inverts values of all the image channels. Only R8, RG8, RGB8, RGBA8, R16, RG16, RGB16, RGBA16, R32F, RG32F, RGB32F and RGBA32F formats can be inverted.Return value
true if the image is inverted successfully; otherwise, false.bool Load ( string file, int offset ) #
Loads an image from a specified file.Arguments
- string file - Name of the image file. The following file formats are supported: DDS.
- int offset - Mipmap offset.
Return value
true if the image is loaded successfully; otherwise, false.bool Load ( string file ) #
Loads an image from the specified file.Arguments
- string file - Name of the image file.
Return value
true if the image is loaded successfully; otherwise, false.bool Load ( string file, int min_mip, int max_mip ) #
Loads an image from the specified file with the specified mipmap levels.Arguments
- string file - Name of the image file to be loaded. The following file formats are supported: DDS.
- int min_mip
- int max_mip
Return value
true if the image is loaded successfully; otherwise, false.bool Load ( Stream stream ) #
Loads an image from a specified stream.Only DDS images can be loaded from a stream.
Arguments
- Stream stream - Stream.
Return value
1 if the image is loaded successfully; otherwise, 0.bool Normalize ( ) #
Creates a three-component normal map out of the image.Return value
1 if normalization was successful; otherwise, 0.bool Resize ( int new_width, int new_height, int filter = FILTER_LINEAR ) #
Resizes the image. Only the 2D or cube image can be resized. Compressed and combined image formats cannot be resized.Arguments
- int new_width - New image width.
- int new_height - New image height.
- int filter - Quality setting, accepts one of the FILTER_* values.
Return value
1 if the image is resized successfully; otherwise, 0.bool Rotate ( int angle ) #
Rotates the image by a given angle (with the step of 90 degrees). Only the 2D or cube image can be rotated. Compressed and combined image formats cannot be rotated.Arguments
- int angle - Angle, that will be multiplied by the step (angle * 90) to set the image rotation degree.
Return value
1 if the image is rotated successfully; otherwise, 0.bool Save ( string file ) #
Saves the image to a DDS file with the specified name.Arguments
- string file - Name of the file to save image data to.
Return value
Returns 1 if the image is saved successfully; otherwise, 0.bool Save ( string file, float quality ) #
Saves the image to a specified file. The following file formats are supported:- DDS
- JPG
- PNG
- PSD
- TGA
Arguments
- string file - Name of a file with extension into which data will be saved.
- float quality - Quality of JPG compression in range [0;1].
Return value
Returns 1 if the image is saved successfully; otherwise, 0.bool Save ( Stream stream ) #
Saves the image to a stream. The following file formats are supported:- DDS
- JPG
- PNG
- PSD
- TGA
Arguments
- Stream stream - Pointer to the stream.
Return value
Returns 1 if the image is saved successfully; otherwise, 0.bool Sign ( ) #
Converts the image from unsigned type to signed char. Only R8, RG8, RGB8, RGBA8, R16, RG16, RGB16, RGBA16, ATI1 and ATI2 formats can be converted.Return value
1 if the image has been converted successfully; otherwise, 0.bool Swap ( int channel, int index ) #
Swaps values of two channels. Compressed formats are not supported.Arguments
- int channel
- int index
Return value
1 if the values are swapped successfully; otherwise, 0.void Swap ( Image image ) #
Swaps the data of the current image with the source image.Arguments
- Image image - Source image.
Pixel ToPixel ( vec4 color ) #
Converts a vec4 color vector (R, G, B, A) to Pixel color.Arguments
- vec4 color - Color vec4 vector (R, G, B, A) with components normalized in range [0.0f; 1.0f]
Return value
Pixel color represented by a Pixel structure.Pixel ToPixel ( int format, vec4 color ) #
Converts a vec4 color vector (R, G, B, A) to Pixel color depending on the specified image format.Arguments
- int format - Image format identifier. See the FORMAT_* variables.
- vec4 color - Color vec4 vector (R, G, B, A) with components normalized in range [0.0f; 1.0f]
Return value
Pixel color represented by a Pixel structure.vec4 ToVec4 ( Pixel pixel ) #
Converts Pixel color to a vec4 color vector (R, G, B, A).Arguments
- Pixel pixel - Pixel color represented by a Pixel structure.
Return value
Color vec4 vector (R, G, B, A). Each component is normalized in range [0.0f; 1.0f]vec4 ToVec4 ( int format, Pixel p ) #
Converts Pixel color to a vec4 color vector (R, G, B, A) depending on the specified image format.Arguments
- int format - Image format identifier. See the FORMAT_* variables.
- Pixel p - Pixel color represented by a Pixel structure.
Return value
Color vec4 vector (R, G, B, A). Each component is normalized in range [0.0f; 1.0f]int GetNumChannels ( int format ) #
Returns the number of channels for the specified image format.Arguments
- int format - Image format identifier. See the FORMAT_* variables.
Return value
Number of channels for the specified image format.int GetPixelSize ( int format ) #
Returns the pixel size for the specified image format. Not available for compressed image formats (DXT1, DXT3, DXT5, ATI1, ATI2, ZLC1, ZLC2, LZ4).Arguments
- int format - Image format identifier. See the FORMAT_* variables.
Return value
Pixel size for the specified image format.int GetBlockSize ( int format ) #
Returns the block size for the specified image format. Available for compressed image formats only (DXT1, DXT3, DXT5, ATI1, ATI2, ZLC1, ZLC2, LZ4).Arguments
- int format - Image format identifier. See the FORMAT_* variables.
Return value
Block size for the specified image format.Last update:
2020-04-30
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