- From: Mark McKay <mark@kitfox.com>
- Date: Wed, 03 May 2006 16:07:12 -0400
- To: www-svg@w3.org
I'm trying to write a function that calculates a normal map from a bump map, and am using http://www.w3.org/TR/SVG/filters.html#feDiffuseLighting as a guide. Unfortunately, the normal calculation requires me to multiply by the function I(x, y), and nowhere defines what function I is. Any ideas? How can I perform the Sobel gradient? Also, why does the SVG Sobel calculation appear so much more complicated than other versions I google? Mark McKay
Received on Wednesday, 3 May 2006 20:07:27 UTC