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Emmanuele Bassi authored
Interpolating between two transformations expressed using a 3D matrix can be achieved by decomposing the matrices into their transformations and do a simple numeric interpolation between the initial and final states, like we do for other data types. Luckily for us, the CSS Transforms specification from the W3C provides the decomposition algorithm, using the "unmatrix" code taken from the book "Graphics Gems II, edited by Jim Arvo". Once the matrices have been decomposed, we can simply interpolate the transformations, and re-apply them onto the result matrix, using the facilities that Clutter provides for interpolating between two known GTypes.
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