var interpolant = new v3d.[name](
new Float32Array(2),
new Float32Array(2),
1,
new Float32Array(1)
);
interpolant.evaluate(0.5);
parameterPositions -- array of positions
sampleValues -- array of samples
sampleSize -- number of samples
resultBuffer -- buffer to store the interpolation results.
Evaluate the interpolant at position *t*.
[sourceHint]