Just been looking at the stencil shadow code again. What's really annoying about this is that what Creative have patented essentially boils down to this:
-1 + 1 = 0 1 - 1 = 0 0 - 1 = -1 0 + 1 = 1This really comes through when you see it expressed using glStencilOpSeparate, you just see the lines of code stacked up, and it's so obvious.
6 comments:
Since patents are by definition showing their contents and since you say it is rather trivial, surely some port will surface in a country where software patents are not existing.
Well I'm in the EU so as the EPC excludes this kind of thing from patentability (under 52.2.1 amd 52.2.3) I could in theory get away with it... but I'd need definite confirmation from a legal person with specific reference to this patent before I'd personally feel comfortable.
Pretend the software was leaked against your will. Although there are still potential attack vectors toward such a strategy... maybe upload the source somewhere under a pseudonym using TOR. Just to do something that's probably legal in the place you live in.
It would be funny if it wasn't sad.
When you get a cease and desist, tell them how happy you are that they pointed you to that nasty bug you were trying to resolve for so long.
Alternatively, write a backwards custom stencil buffer.
Yes, do it completely reverse.
And at the end do a "* -1"
I remember reading an Ars Technica article where is mentioned the math formulas cannot be patented. Isn't that the case ?
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