From e39bc9fd4310a3bc19ccbc24c9471977bbf536f1 Mon Sep 17 00:00:00 2001 From: Jim Van Verth Date: Thu, 14 Jun 2018 14:43:00 -0400 Subject: Implement tilted concave ambient shadow Bug: skia:7971 Change-Id: I6a92a5021f53ae10fb35ef355081653e96bc04b0 Reviewed-on: https://skia-review.googlesource.com/134844 Commit-Queue: Jim Van Verth Reviewed-by: Brian Salomon --- samplecode/SampleAndroidShadows.cpp | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'samplecode') diff --git a/samplecode/SampleAndroidShadows.cpp b/samplecode/SampleAndroidShadows.cpp index ee833d7939..cdc9e75201 100644 --- a/samplecode/SampleAndroidShadows.cpp +++ b/samplecode/SampleAndroidShadows.cpp @@ -315,6 +315,7 @@ protected: fWideOvalPath.getBounds().height() / 2); translate = SkPoint::Make(100, 600); view.restore(); + view.save(); view.rotateY(fAnimAngle); view.getMatrix(&persp); persp.preTranslate(-pivot.fX, -pivot.fY); @@ -325,6 +326,21 @@ protected: SkTMax(1.0f, 32 + fZDelta) + SkScalarSin(radians)*pivot.fX); this->drawShadowedPath(canvas, fWideOvalPath, zPlaneParams, paint, .1f, lightPos, kLightWidth, .5f); + + pivot = SkPoint::Make(fStarPath.getBounds().width() / 2, + fStarPath.getBounds().height() / 2); + translate = SkPoint::Make(700, 250); + view.restore(); + view.rotateY(fAnimAngle); + view.getMatrix(&persp); + persp.preTranslate(-pivot.fX, -pivot.fY); + persp.postTranslate(pivot.fX + translate.fX, pivot.fY + translate.fY); + canvas->setMatrix(persp); + zPlaneParams = SkPoint3::Make(-SkScalarSin(radians), + 0, + SkTMax(1.0f, 8 + fZDelta) + SkScalarSin(radians)*pivot.fX); + this->drawShadowedPath(canvas, fStarPath, zPlaneParams, paint, .1f, + lightPos, kLightWidth, .5f); } bool onAnimate(const SkAnimTimer& timer) override { -- cgit v1.2.3