blob: 5e1a4a9ec902e8ca123ba68266c7145e0b01caa5 [file] [log] [blame]
* Copyright 2017 Google Inc.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#ifndef SkSpotShadowMaskFilter_DEFINED
#define SkSpotShadowMaskFilter_DEFINED
#include "SkMaskFilter.h"
#include "SkShadowFlags.h"
* This filter implements a shadow for an occluding object
* representing a displaced shadow from a point light.
class SK_API SkSpotShadowMaskFilter {
/** Create a shadow maskfilter.
* @param occluderHeight Height of occluding object off of ground plane.
* @param lightPos Position of the light applied to this object.
* @param lightRadius Radius of the light (light is assumed to be spherical).
* @param spotAlpha Base opacity of the displaced spot shadow.
* @param flags Flags to use - defaults to none
* @return The new shadow maskfilter
static sk_sp<SkMaskFilter> Make(SkScalar occluderHeight, const SkPoint3& lightPos,
SkScalar lightRadius, SkScalar spotAlpha,
uint32_t flags = SkShadowFlags::kNone_ShadowFlag);
SkSpotShadowMaskFilter(); // can't be instantiated