On Thu, 2009-12-24 at 16:10 -0600, Aaron Spike wrote:
Joshua A. Andler wrote:
On Thu, 2009-12-24 at 08:14 -0600, Aaron Spike wrote:
Color in SVG includes an alpha channel. I've been told that rendering of Coons patch meshes is ambiguous when this is the case. Does this also affect Tensor-product patch meshes?
I'm curious about the ambiguity. Do you recall why that was said? I'm sure it's more technical, but if it works how I imagine it could, it could afford great artistic leverage.
IIRC extreme bends in the control beziers can cause the fill to self overlap. Transparent or semi-transparent colors would allow the deeper parts of the fill to bleed through. And once again, remember that I don't know what I'm talking about. :-)
I could see artistic benefits to bleeding through... realistic looking cellophane or non-opaque fabrics for example. Then again as you described, I could see the drawbacks too... unless there was something like the equivalent of "fill-rule" for meshes, so it is optional to render the deeper parts.
Cheers, Josh