better exception catch tips

Author: ksgfk

EmbreeSharp/Native/RTCBuffer.cs

@@ -24,8 +24,9 @@ protected override bool ReleaseHandle()
                 handle = 0;
                 return true;
             }
-            catch (Exception)
+            catch (Exception e)
             {
+                Console.Error.WriteLine("cannot release RTCBuffer, exception: {0}\n  at:\n{1}", e.Message, e.StackTrace);
                 return false;
             }
         }

EmbreeSharp/Native/RTCBuilder.cs

@@ -24,8 +24,9 @@ protected override bool ReleaseHandle()
                 handle = 0;
                 return true;
             }
-            catch (Exception)
+            catch (Exception e)
             {
+                Console.Error.WriteLine("cannot release RTCBVH, exception: {0}\n  at:\n{1}", e.Message, e.StackTrace);
                 return false;
             }
         }

EmbreeSharp/Native/RTCDevice.cs

@@ -24,8 +24,9 @@ protected override bool ReleaseHandle()
                 handle = 0;
                 return true;
             }
-            catch (Exception)
+            catch (Exception e)
             {
+                Console.Error.WriteLine("cannot release RTCDevice, exception: {0}\n  at:\n{1}", e.Message, e.StackTrace);
                 return false;
             }
         }

EmbreeSharp/Native/RTCGeometry.cs

@@ -24,8 +24,9 @@ protected override bool ReleaseHandle()
                 handle = 0;
                 return true;
             }
-            catch (Exception)
+            catch (Exception e)
             {
+                Console.Error.WriteLine("cannot release RTCScene, exception: {0}\n  at:\n{1}", e.Message, e.StackTrace);
                 return false;
             }
         }
@@ -52,8 +53,9 @@ protected override bool ReleaseHandle()
                 handle = 0;
                 return true;
             }
-            catch (Exception)
+            catch (Exception e)
             {
+                Console.Error.WriteLine("cannot release RTCGeometry, exception: {0}\n  at:\n{1}", e.Message, e.StackTrace);
                 return false;
             }
         }