Interpolation Extension¶
Any parameter change in a scene description can either be discrete (jump to) or continuous/interpolated (smooth)
Interpolation flag¶
Interpolating on a parameter of an entity (source/sink/speaker)¶
/spatdif/interpolate/source/1/position 1
/spatdif/interpolate/source/*/position 0
Setting a target time (duration) or imply interpolation to the next occurrence of the parameter¶
/spatdif/interpolate/source/1/time 2.5
/spatdif/interpolate/source/1/time -1
Interpolation type¶
For each interpolation type the formula is provided for increasing a normalized one-dimensional value {{latex($y_n$)}} from 0 to 1 over the normalized time {{latex($t_n$)}} starting at 0 and ending at 1.
Type | OSC Example | Equation |
None | /spatdif/interpolate/source/1/type none |
|
Linear | /spatdif/interpolate/source/1/type linear |
{{latex($y_n = t_n$)}} |
Cubic | /spatdif/interpolate/source/1/type cubic |
|
Quadratic | /spatdif/interpolate/source/1/type quadratic |
|
Cosine | /spatdif/interpolate/source/1/type cosine |
{{latex($y_n = 0.5 - 0.5 * cos(\pi t_n)$)}} |
Q: tweening/easing?
Q: Should granularity be defined as well?
Q: Interpolation of multidimensional data (e.g. position, directivity) ?
- see attached example: InterpolationPosition.mov