7 ms·
They are typically referred to as Porter Duff blend modes, so I assume that these algorithms were invented mainly by those guys. (by Thomas Porter and Tom Duff)
by stoeckley 4y ago
They are typically referred to as Porter Duff blend modes, so I assume that these algorithms were invented mainly by those guys. (by Thomas Porter and Tom Duff)
- mortenjorck 4y agoThis set me on an interesting trail. I haven’t found anything yet that links Porter and Duff to the modern blend modes as we know them, but I did find this 1984 SIGGRAPH paper they authored that appears to have laid much of the groundwork! https://graphics.pixar.com/library/Compositing/paper.pdf https://graphics.pixar.com/library/Compositing/paper.pdf
- stoeckley 4y agoI don't know the history, but there is supposedly a fixed set of Porter Duff blend modes, specific algorithms. For example, this C++ library: > Blend2D supports all Porter & Duff compositing operators https://blend2d.com/ https://blend2d.com/ Also, the link shared by one of the sibling comments can be searched for "Porter" to see how they are referenced: https://drafts.fxtf.org/compositing/ https://drafts.fxtf.org/compositing/