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authorGravatar Jim Van Verth <jvanverth@google.com>2018-04-19 14:47:53 -0400
committerGravatar Skia Commit-Bot <skia-commit-bot@chromium.org>2018-04-19 21:21:44 +0000
commitd75b34394b5c53b0a5e8144dd28f956fbc8b90b2 (patch)
tree8b13f2d839422ef143b8865ef92c134a81be3b3f /src/utils
parentfb9f39a98a82f85b046bdd4ab1db68e4fc1f322c (diff)
Remove ambient clamp hack for analytic shadows.
The hack was added to make analytic ambient shadows match the geometric ones exactly. Removing it does produce a slight difference, but it's only visible at full black values (and then, only slightly) and this makes room to pass a blend parameter for falloff. Also fixes an issue with filling out arcs in the shadow tesselator. Bug: skia:7486 Change-Id: If78d0104df7e18f4320c1658af75576f6a4a8c73 Reviewed-on: https://skia-review.googlesource.com/122580 Reviewed-by: Brian Salomon <bsalomon@google.com> Commit-Queue: Jim Van Verth <jvanverth@google.com>
Diffstat (limited to 'src/utils')
-rwxr-xr-xsrc/utils/SkShadowTessellator.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/utils/SkShadowTessellator.cpp b/src/utils/SkShadowTessellator.cpp
index 98c47a6f2d..0bf1adaaa4 100755
--- a/src/utils/SkShadowTessellator.cpp
+++ b/src/utils/SkShadowTessellator.cpp
@@ -121,7 +121,7 @@ static void compute_radial_steps(const SkVector& v1, const SkVector& v2, SkScala
SkScalar rSin = v1.cross(v2);
SkScalar theta = SkScalarATan2(rSin, rCos);
- int steps = SkScalarFloorToInt(r*theta*kRecipPixelsPerArcSegment);
+ int steps = SkScalarRoundToInt(SkScalarAbs(r*theta*kRecipPixelsPerArcSegment));
SkScalar dTheta = theta / steps;
*rotSin = SkScalarSinCos(dTheta, rotCos);