Making a sample for shadow maps for more intensive development

include/core/SkLights.h

Index: include/core/SkLights.h
diff --git a/include/core/SkLights.h b/include/core/SkLights.h
index 0b23cc14aa01fa742133e5dfdf332f24d8e6a334..fde6b27484f6b71b64f03686651b583e28cde8c9 100644
--- a/include/core/SkLights.h
+++ b/include/core/SkLights.h
@@ -55,6 +55,13 @@ public:
             return fShadowMap;
         }
 

[robertphillips, 2016/08/02 16:05:06]

The entire idea of having the builder and then built object is to have the built
object be immutable after it is constructed!

[vjiaoblack, 2016/08/03 14:04:20]

Done.

+        void setDir(SkVector3 newDir) {
+            fDirection = newDir;
+            if (!fDirection.normalize()) {
+                fDirection.set(0.0f, 0.0f, 1.0f);
+            }
+        }
+
         Light& operator= (const Light& b) {
             if (this == &b)
                 return *this;