Implemented rim_light and rim_power shader parameters, enabling outlining of objects on a per-model basis.

Will need to later refactor to allow for a more scalable means of adding per-model shader attributes.

--HG--
branch : nfb

KREngine/kraken/KRModel.h

@@ -51,7 +51,7 @@
 class KRModel : public KRNode {
     
 public:
-    KRModel(KRScene &scene, std::string instance_name, std::string model_name, std::string light_map, float lod_min_coverage, bool receives_shadow, bool faces_camera);
+    KRModel(KRScene &scene, std::string instance_name, std::string model_name, std::string light_map, float lod_min_coverage, bool receives_shadow, bool faces_camera, KRVector3 rim_color = KRVector3::Zero(), float rim_power = 0.0f);
     virtual ~KRModel();
     
     virtual std::string getElementName();
@@ -61,6 +61,11 @@ public:
     
     virtual KRAABB getBounds();
     
+    void setRimColor(const const KRVector3 &rim_color);
+    void setRimPower(float rim_power);
+    KRVector3 getRimColor();
+    float getRimPower();
+    
 private:
     std::vector<KRMesh *> m_models;
     unordered_map<KRMesh *, std::vector<KRBone *> > m_bones; // Outer std::map connects model to set of bones
@@ -78,6 +83,10 @@ private:
     
     KRMat4 m_boundsCachedMat;
     KRAABB m_boundsCached;
+    
+    
+    KRVector3 m_rim_color;
+    float m_rim_power;
 };