tree 15ec6b7d0f904ba949098f286c1588209e267e09
parent 7d6afdd795eb4c7ce8f5a327117cfdba5f957ddb
author senorblanco@chromium.org <senorblanco@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> 1340398883 +0000
committer senorblanco@chromium.org <senorblanco@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> 1340398883 +0000

Raster implementation of diffuse and specular lighting filters.  Externally,
the caller instantiates a light (distant, point or spot), and an
SkDiffuseLightingFilter or SkSpecularLightingImageFilter with that light.  A
Sobel edge detection filter is applied to the alpha of the incoming bitmap, and
the result is used as a height map for lighting calculations.

Review URL:  http://codereview.appspot.com/6302101/


git-svn-id: http://skia.googlecode.com/svn/trunk@4314 2bbb7eff-a529-9590-31e7-b0007b416f81