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Unity Engine

GetPixel(int, int, int, int)

Gets the pixel color at coordinates ( x, y, z ).
Read time 1 minuteLast updated 6 days ago

Definition

  • Type: Method
  • Namespace: UnityEngine
  • Assembly: UnityEngine.CoreModule
public Color GetPixel(int x, int y, int z, int mipLevel)

Parameters

x

int
The x coordinate of the pixel to get. The range is 
0
through the (texture width - 1).

y

int
The y coordinate of the pixel to get. The range is 
0
through the (texture height - 1).

z

int
The z coordinate of the pixel to get. The range is 
0
through the (texture depth - 1).

mipLevel

int
The mipmap level to sample. The range is 
0
through the texture's Texture.mipmapCount. The default value is 
0
.

Returns

Type

Description

ColorThe pixel color.

Remarks

This method gets pixel data from the texture in CPU memory. Texture.isReadable must be 
true
.
The lower left corner is (0, 0, 0). If the pixel coordinate is outside the texture's dimensions, Unity clamps or repeats it, depending on the texture's TextureWrapMode.
GetPixel
might be slower than some other texture methods because it converts the format the texture uses into Color. 
GetPixel
also needs to decompress compressed textures, and use memory to store the decompressed area. To get pixel data more quickly, use Texture3D.GetPixelData instead.
If you need to get a large block of pixels, it might be faster to use Texture3D.GetPixels32 or Texture3D.GetPixels.
You can't use 
GetPixel
with textures that use Crunch texture compression.
Additional Resources: Texture3D.GetPixels32, Texture3D.GetPixels, Texture3D.SetPixel, Texture3D.GetPixelBilinear.