From b89a7ee8b956c96a1dcee995ea840feddc5d4b27 Mon Sep 17 00:00:00 2001
From: Pierre Frisch
Date: Thu, 22 Dec 2011 07:25:50 -0800
Subject: First commit of Ninja to ninja-internal

Signed-off-by: Valerio Virgillito <rmwh84@motorola.com>
---
 .../RDGE/src/core/script/shadowLight.js            | 54 ++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 js/helper-classes/RDGE/src/core/script/shadowLight.js

(limited to 'js/helper-classes/RDGE/src/core/script/shadowLight.js')

diff --git a/js/helper-classes/RDGE/src/core/script/shadowLight.js b/js/helper-classes/RDGE/src/core/script/shadowLight.js
new file mode 100644
index 00000000..80d9331a
--- /dev/null
+++ b/js/helper-classes/RDGE/src/core/script/shadowLight.js
@@ -0,0 +1,54 @@
+/* <copyright>
+This file contains proprietary software owned by Motorola Mobility, Inc.<br/>
+No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/>
+(c) Copyright 2011 Motorola Mobility, Inc.  All Rights Reserved.
+</copyright> */
+
+/* 
+ * shadow light - a modified camera used to describe a shadow casting light
+ */
+shadowLight = function() 
+{
+	// inherit from the base class
+	this.inheritedFrom = camera;
+	this.inheritedFrom();
+	
+	// matrices needed for shadow projection
+	this.invViewMatrix=mat4.identity();
+	this.mvpMatrix=mat4.identity();
+	
+	// texture matrix
+	this.shadowMatrix=mat4.identity();           
+	this.shadowMatrix=mat4.scale(this.shadowMatrix,[0.5,0.5,0.5]);
+	this.shadowMatrix=mat4.translate(this.shadowMatrix,[0.5,0.5,0.5]);
+	
+	// cached references
+	this.renderer = null;
+	this.cameraManager = null;
+	
+	// shadow bias offset
+	this.shadowBias = 0.0195;
+	
+	this.init = function ()
+	{
+		this.renderer = g_Engine.getContext().renderer;
+		this.cameraManager = this.renderer.cameraManager();
+	}
+	
+	/*
+	 *	makes the light the current 'camera'
+	 */
+	this.activate = function()
+	{
+		this.cameraManager.pushCamera(this);
+	}
+	
+	/*
+	 *	restores the camera stack
+	 */
+	this.deactivate = function()
+	{
+		this.cameraManager.popCamera();	
+	}
+	
+}
-- 
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