1.6 KiB
Creating Textures
You can use the command line tools toktx (comes with KTX-Software) to create KTX™ v2.0 files and basisu (part of Basis Universal) to create .basis files.
The default texture orientation of both of those tools (right-down) does not match Unity's orientation (right-up). To counter-act, you can provide a parameter to flip textures in the vertical axis (Y). This is recommended, if you use the textures in Unity only. The parameters are:
--lower_left_maps_to_s0t0fortoktx--y_flipforbasisu
Example usage:
# For KTX files:
# Create regular KTX file from an input image
toktx --bcmp regular.ktx2 input.png
# Create a y-flipped KTX file, fit for Unity out of the box
toktx --lower_left_maps_to_s0t0 --bcmp unity_flipped.ktx2 input.png
# For Basis files:
# Create regular basis file from an input image
basisu -output_file regular.basis input.png
# Create a y-flipped basis file, fit for Unity out of the box
basisu -y_flip -output_file unity_flipped.basis input.png
If changing the orientation of your texture files is not an option, you can correct it by applying it flipped at run-time (see How To).
Trademarks
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KTX™ and the KTX logo are trademarks of the The Khronos Group Inc.