Uploaded by Quint-t-W 
1000x500 PNG 85 kB
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Description
Uploading some of my older drawings: august 2012
Source
Yer darn tootin’.
your current filter.that thar looks like some fancy mathematics to me.
(Homogeneous coordinates are used for calculating translation by matrix multiplication; that is, moving the object/vector with the same math as rotation, scaling, shearing, etc.
Here’s a reference link: https://en.wikipedia.org/wiki/Transformation_matrix
A 2d vector is a 1x2 or 2x1 matrix, though. Matrix multiplication isn’t defined for a 1x2 matrix multiplied by a 3x3 matrix. Twilight should be a 3d vector, or a 1x3 matrix, for the multiplication to be defined.
(2d because we’d need a 4x4 identity matrix to properly handle a 3d Twilight. Homogeneous coordinates, after all, are essential for this kind of transformation.)