Returns the value of a 3D image at a specified position within that image.
This operator returns the value of a 3D image at a specified position within that image.
If the position is outside of the bounding box of the image, the value returned will be 0. If the channel specified contains more values than the return type (i.e. a vector channel when a float return type is desired), the first component of the vector will be returned. If the channel specified contains fewer values than the return type, the missing components will be filled with the last valid channel.
Texture files will be searched for in the path specified by the
HOUDINI_TEXTURE_PATH environment variable.
Float, vector, or vector4 values
3D image file used for look-up
Channel to be evaluated
3D location in the image where to evaluate
Type of anti-aliasing filter to be used for evaluation. The options are:
Filter width in both u and v directions