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Some options are available only in Advanced mode.

File – Specifies the file from which the bitmap is loaded.

Filter Type – Specifies a type of filter to be applied to the bitmap.

Sharp Isotropic - Sharp and accurate isotropic filter. Produces results that are close to the results with disabled filtering with less AA samples required.
No Filter – No filter is applied. 
Mip-map – Depending on the distance from the camera, the texture is rendered in full detail (when closer to the camera) or blurred, if it is far away. 
Summed-area – Applies a summed-area filter. It is not recommended to use this filter.

Filter Blur – Specifies the strength of the blur filter applied to the bitmap.

Transfer Function ² – Specifies the transfer function for the loaded image file.

None – No correction is applied.
sRGB – The loaded image is considered in sRGB transfer function.
Custom Gamma Curve – The transfer function is controlled through the Gamma parameter.
Auto – Automatically determines the color transfer function. If a bitmap file name contains the string "_srgb" the transfer function is sRGB. If a bitmap file name contains the strings "_lin_srgb" or "raw", no correction is applied. For bitmap files with 8 bits per color component and 3 or 4 color components (like png, jpg and other), the transfer function is sRGB. In all other cases, no correction is applied.

RGB Primaries – Allows you to manually override the RGB primaries of the Bitmap.

Raw – No transformation is applied to R|G|B colors. This option is suitable for normal maps, linear textures and textures controlling float value parameters.
sRGB primaries – The loaded image is considered in sRGB color space.
ACEScg primaries – The loaded image is considered in ACEScg color space. It is recommended to use this option when the texture is saved in ACEScg color space.

Gamma – Specifies the gamma curve correction applied when the Transfer Function is set to Custom Gamma Curve.