Wrong color-matrix multiplying

In _multiply, ‘translation’ part of a is ignored.

out[4] = (a[0] * b[4]) + (a[1] * b[9]) + (a[2] * b[14]) + (a[3] * b[19]);

should be

out[4] = (a[0] * b[4]) + (a[1] * b[9]) + (a[2] * b[14]) + (a[3] * b[19]) + a[4];

.

Multiplying should be done as if b has fifth row like (0, 0, 0, 0, 1).

[GoodBoyDigital]

think you may need to run npm run build first

[lock[bot]]

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