options: bit-coded:
bit0 reserved. Do not set.
bit1 reserved. Do not set.
bit2 set (4)=only an elliptical/circular portion of the texture data will be written.
textureData: RGB data to write onto the texture. Each pixel is represented with 3 bytes (0-255).
posX / posY: the x/y position where to copy the RGB data. Set to 0/0 to overwrite the full texture
sizeX / sizeY: the x/y size of the RGB data. Set to 0/0 to overwrite the full texture
interpolation: the fade or interpolation factor. 0 for no fade.
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