diff --git a/camera.h b/camera.h
index b734041..0011da0 100755
--- a/camera.h
+++ b/camera.h
@@ -15,6 +15,8 @@ namespace vb01{
 			inline Vector3 getDirection(){return direction;}
 			inline Vector3 getLeft(){return left;}
 			inline Vector3 getUp(){return up;}
+			inline void setNearPlane(float near){this->nearPlane=near;}
+			inline void setFarPlane(float far){this->farPlane=far;}
 			inline float getFov(){return fov;}
 			inline float getNearPlane(){return nearPlane;}
 			inline float getFarPlane(){return farPlane;}
diff --git a/light.cpp b/light.cpp
index ec64470..4423e15 100755
--- a/light.cpp
+++ b/light.cpp
@@ -57,17 +57,14 @@ namespace vb01{
 		std::vector<Material*> materials;
 		rootNode->getDescendants(rootNode,descendants);
 		descendants.push_back(rootNode);
-		int numLights=0,thisId=-1;
+		int thisId=-1;
 		float fov=cam->getFov(),width=root->getWidth(),height=root->getHeight();
 
 		for(Node *d : descendants){
 			std::vector<Light*> lights=d->getLights();
-			for(Light *l : lights){
-				if(l){
-					numLights++;
-					if(l==this)
-						thisId=numLights-1;
-				}	
+			for(int i=0;i<lights.size();i++){
+				if(lights[i]==this)
+					thisId=i;
 			}
 			for(Mesh *m : d->getMeshes())
 				materials.push_back(m->getMaterial());
@@ -130,6 +127,7 @@ namespace vb01{
 		}
 		glBindFramebuffer(GL_FRAMEBUFFER,*(root->getFBO()));
 		glViewport(0,0,root->getWidth(),root->getHeight());
+
 		for(Material *m : materials){
 			Shader *shader=m->getShader();
 			shader->use();
@@ -138,13 +136,15 @@ namespace vb01{
 			shader->setFloat(nearPlane,"light["+to_string(thisId)+"].near");
 			shader->setFloat(farPlane,"light["+to_string(thisId)+"].far");
 			shader->setInt(0,"diffuseMap");
-			//shader->setInt(1,"normalMap");
+			shader->setInt(1,"normalMap");
 			shader->setInt(2,"specularMap");
 			shader->setInt(3,"parallaxMap");
 			shader->setInt(4,"environmentMap");
 			shader->setInt(5,"light["+to_string(thisId)+"].depthMapCube");
 			shader->setInt(6,"light["+to_string(thisId)+"].depthMap");
 			depthMap->select(type==POINT?5:6);
+			/*
+			*/
 
 			switch(type){
 				case POINT:
diff --git a/light.h b/light.h
index fcab8a4..e256f73 100755
--- a/light.h
+++ b/light.h
@@ -34,6 +34,7 @@ namespace vb01{
 			inline float getOuterAngle(){return outerAngle;}
 			inline float getShadowNearPlane(){return nearPlane;}
 			inline float getShadowFarPlane(){return farPlane;}
+			inline Node* getNode(){return node;}
 		private:
 			Type type;
 			Shader *depthMapShader;
diff --git a/material.cpp b/material.cpp
index 8d3c4b8..103fb77 100755
--- a/material.cpp
+++ b/material.cpp
@@ -1,5 +1,6 @@
 #include"material.h"
 #include"shader.h"
+#include"root.h"
 
 using namespace std;
 
@@ -51,8 +52,7 @@ namespace vb01{
 		shader->use();
 		if(type==MATERIAL_2D){
 			shader->setBool(lightingEnabled,"lightingEnabled");
-			if(normalMapEnabled)
-				shader->setBool(normalMapEnabled,"normalMapEnabled");
+			shader->setBool(normalMapEnabled,"normalMapEnabled");
 		}
 		shader->setBool(texturingEnabled,"texturingEnabled");
 		if(type==MATERIAL_GUI){
diff --git a/mesh.cpp b/mesh.cpp
index fed5f37..f79499d 100755
--- a/mesh.cpp
+++ b/mesh.cpp
@@ -30,7 +30,8 @@ namespace vb01{
 		for(Mesh *m : meshes)
 			delete m;
 
-		delete material;
+		if(material)
+			delete material;
 
 		glDeleteVertexArrays(1,&VAO);
 		glDeleteBuffers(1,&EBO);
@@ -163,7 +164,7 @@ namespace vb01{
 		if(reflect){
 			shader->setBool(reflect,"environmentMapEnabled");
 			root->getSkybox()->getMaterial()->getDiffuseMap(0)->select(4);
-			//environmentMap->select(4);
+			environmentMap->select(4);
 		}
 		if(skeleton){
 		}
diff --git a/model.cpp b/model.cpp
index 2d5af5f..be41d31 100755
--- a/model.cpp
+++ b/model.cpp
@@ -70,143 +70,157 @@ namespace vb01{
 
 	Model::Model(string path,bool b) : Node(){
 		if(b){
-		Importer importer;
-		const aiScene *scene=importer.ReadFile(path,aiProcess_Triangulate | aiProcess_FlipUVs | aiProcess_GenNormals | aiProcess_CalcTangentSpace);
-		if(!scene||scene->mFlags&AI_SCENE_FLAGS_INCOMPLETE||!scene->mRootNode){
-			cout<<"Failed to load model:"<<importer.GetErrorString()<<endl;
-			exit(-1);	
-		}
-		processNode(scene->mRootNode,scene,this);
+			Importer importer;
+			const aiScene *scene=importer.ReadFile(path,aiProcess_Triangulate | aiProcess_FlipUVs | aiProcess_GenNormals | aiProcess_CalcTangentSpace);
+			if(!scene||scene->mFlags&AI_SCENE_FLAGS_INCOMPLETE||!scene->mRootNode){
+				cout<<"Failed to load model:"<<importer.GetErrorString()<<endl;
+				exit(-1);	
+			}
+			processNode(scene->mRootNode,scene,this);
 		}
 		else{
-		int numTris,numVerts,numGroups,v=0,u=0,vg=0,b=0;
-		Mesh::Vertex *vertices;
-		Mesh::VertexGroup *groups=new Mesh::VertexGroup[5];
-		unsigned int *indices;
-		Vector3 *pos,*norm;
-
-		ifstream in(path);
-		string l;
-		bool verts=false,uv=false,vertexGroups=false,bones=false;
-
-		while(getline(in,l)){
-			if(l.substr(0,8)=="numFaces"){
-				numTris=atoi(l.substr(9,string::npos).c_str());		
-				vertices=new Mesh::Vertex[numTris*3];
-				indices=new unsigned int[numTris*3];
-			}
-			else if(l.substr(0,11)=="numVertices"){
-				numVerts=atoi(l.substr(12,string::npos).c_str());		
-				pos=new Vector3[numVerts];
-				norm=new Vector3[numVerts];
-			}
-			else if(l.substr(0,9)=="numGroups"){
-				numGroups=atoi(l.substr(10,string::npos).c_str());		
-				groups=new Mesh::VertexGroup[numGroups];
-			}
-			if(l=="vertices:"){
-				verts=true;
-				continue;
-			}
-			else if(l=="uv:"){
-				verts=false;	
-				uv=true;
-				continue;
-			}
-			else if(l=="groups:"){
-				uv=false;
-				vertexGroups=true;
-				continue;
-			}
-			else if(l=="bones:"){
-				vertexGroups=false;
-				bones=true;
-				continue;
-			}
-
-			if(verts||uv||vertexGroups||bones){
-				int numCoords=1;
-				if(verts)numCoords=6;
-				else if(uv)numCoords=3;
-				else if(vg)numCoords=3;
-				else if(groups)numCoords=1;
-
-				int nextSpace=0;
-				int *spaceIds=new int[numCoords-1];
-				for(int i=0;i<l.length();i++)
-					if(l.c_str()[i]==' '){
-						spaceIds[nextSpace]=i;
-						nextSpace++;
-					}
-				float *coords=new float[numCoords];
-				for(int i=0;i<numCoords;i++){
-					int firstChar,lastChar;
-					if(i==0)
-						firstChar=0,lastChar=spaceIds[i];
-					else if(i==numCoords-1)
-						firstChar=spaceIds[i-1],lastChar=string::npos;
-					else
-						firstChar=spaceIds[i-1],lastChar=spaceIds[i]-spaceIds[i-1];
-					coords[i]=atof(l.substr(firstChar,lastChar).c_str());
+			int numTris,numVerts,numGroups,v=0,u=0,vg=0,b=0;
+			Mesh::Vertex *vertices;
+			Mesh::VertexGroup *groups=new Mesh::VertexGroup[5];
+			unsigned int *indices;
+			Vector3 *pos,*norm;
+	
+			ifstream in(path);
+			string l;
+			bool verts=false,uv=false,vertexGroups=false,bones=false;
+	
+			while(getline(in,l)){
+				if(l.substr(0,8)=="numFaces"){
+					numTris=atoi(l.substr(9,string::npos).c_str());		
+					vertices=new Mesh::Vertex[numTris*3];
+					indices=new unsigned int[numTris*3];
 				}
-				if(verts){
-					pos[v]=Vector3(coords[0],coords[1],coords[2]);
-					norm[v]=Vector3(coords[3],coords[4],coords[5]);
-					//Vector2 uv=Vector2(coords[6],coords[7]);
-					//vertices[v].pos=pos;
-					//vertices[v].norm=norm;
-					//vertices[v].texCoords=uv;
-					v++;
+				else if(l.substr(0,11)=="numVertices"){
+					numVerts=atoi(l.substr(12,string::npos).c_str());		
+					pos=new Vector3[numVerts];
+					norm=new Vector3[numVerts];
 				}
-				else if(uv){
-					int id=(int)coords[0];
-					Vector2 uv=Vector2(coords[1],coords[2]);
-					vertices[u].pos=pos[id];
-					vertices[u].norm=norm[id];
-					vertices[u].texCoords=uv;
-					indices[u]=u;
-					u++;
+				else if(l.substr(0,9)=="numGroups"){
+					numGroups=atoi(l.substr(10,string::npos).c_str());		
+					groups=new Mesh::VertexGroup[numGroups];
 				}
-				else if(vertexGroups){
-					if(l.c_str()[l.length()-1]==':'){
-						numCoords=1;
-						groups[vg].vertices=new Mesh::Vertex*;
-						groups[vg].weights=new float;
-						groups[vg].name=l.c_str()[l.length()-1];
-						vg++;
-					}
-					else{
-						numCoords=2;
-						int *ids=new int,numVerts=0;
-						for(int i=0;i<3*numTris;i++){
-							if(vertices[i].pos==pos[(int)coords[0]]){
-								ids[numVerts]=i;
-								numVerts++;
-							}
+				if(l=="vertices:"){
+					verts=true;
+					continue;
+				}
+				else if(l=="uv:"){
+					verts=false;	
+					uv=true;
+					continue;
+				}
+				else if(l=="groups:"){
+					uv=false;
+					vertexGroups=true;
+					continue;
+				}
+				else if(l=="bones:"){
+					vertexGroups=false;
+					bones=true;
+					continue;
+				}
+	
+				if(verts||uv||vertexGroups||bones){
+					int numCoords=1;
+					if(verts)numCoords=6;
+					else if(uv)numCoords=3;
+					else if(vg)numCoords=3;
+					else if(groups)numCoords=1;
+	
+					int nextSpace=0;
+					int *spaceIds=new int[numCoords-1];
+					for(int i=0;i<l.length();i++)
+						if(l.c_str()[i]==' '){
+							spaceIds[nextSpace]=i;
+							nextSpace++;
 						}
-						for(int i=0;i<3*numTris;i++)
-							for(int j=0;j<numVerts;j++){
-								groups[vg].vertices[groups[vg].numVertices]=&(vertices[ids[j]]);
-								groups[vg].weights[ids[j]]=coords[1];
-							}
-						groups[vg].numVertices++;
-						delete[] ids;
+					float *coords=new float[numCoords];
+					for(int i=0;i<numCoords;i++){
+						int firstChar,lastChar;
+						if(i==0)
+							firstChar=0,lastChar=spaceIds[i];
+						else if(i==numCoords-1)
+							firstChar=spaceIds[i-1],lastChar=string::npos;
+						else
+							firstChar=spaceIds[i-1],lastChar=spaceIds[i]-spaceIds[i-1];
+						coords[i]=atof(l.substr(firstChar,lastChar).c_str());
 					}
+					if(verts){
+						pos[v]=Vector3(coords[0],coords[1],coords[2]);
+						norm[v]=Vector3(coords[3],coords[4],coords[5]);
+						//Vector2 uv=Vector2(coords[6],coords[7]);
+						//vertices[v].pos=pos;
+						//vertices[v].norm=norm;
+						//vertices[v].texCoords=uv;
+						v++;
+					}
+					else if(uv){
+						int id=(int)coords[0];
+						Vector2 uv=Vector2(coords[1],coords[2]);
+						vertices[u].pos=pos[id];
+						vertices[u].norm=norm[id];
+						vertices[u].texCoords=uv;
+						indices[u]=u;
+						u++;
+					}
+					else if(vertexGroups){
+						if(l.c_str()[l.length()-1]==':'){
+							numCoords=1;
+							groups[vg].vertices=new Mesh::Vertex*;
+							groups[vg].weights=new float;
+							groups[vg].name=l.c_str()[l.length()-1];
+							vg++;
+						}
+						else{
+							numCoords=2;
+							int *ids=new int,numVerts=0;
+							for(int i=0;i<3*numTris;i++){
+								if(vertices[i].pos==pos[(int)coords[0]]){
+									ids[numVerts]=i;
+									numVerts++;
+								}
+							}
+							for(int i=0;i<3*numTris;i++)
+								for(int j=0;j<numVerts;j++){
+									groups[vg].vertices[groups[vg].numVertices]=&(vertices[ids[j]]);
+									groups[vg].weights[ids[j]]=coords[1];
+								}
+							groups[vg].numVertices++;
+							delete[] ids;
+						}
+					}
+					else if(bones){
+						b++;
+					}
+					delete[] coords;
 				}
-				else if(bones){
-					b++;
-				}
-				delete[] coords;
 			}
-		}
-		delete[] pos;
-		delete[] norm;
-		attachChild(new Node());
-		children[0]->attachMesh(new Mesh(vertices,indices,numTris));
+			delete[] pos;
+			delete[] norm;
+			attachChild(new Node());
+			children[0]->attachMesh(new Mesh(vertices,indices,numTris));
 		}
 	}
 
-	Model::~Model(){}
+	Model::~Model(){
+		delete children[0]->getMesh(0)->getMaterial();
+
+		vector<Node*> descendants;
+		getDescendants(this,descendants);
+		for(Node *node : descendants)
+			for(Mesh *mesh : node->getMeshes())
+				mesh->setMaterial(nullptr);
+
+		while(!children.empty()){
+			Node *c=children[children.size()-1];
+			dettachChild(c);
+			delete c;
+		}
+	}
 
 	void Model::update(){
 		Node::update();	
diff --git a/node.cpp b/node.cpp
index eb99c78..fb3704a 100755
--- a/node.cpp
+++ b/node.cpp
@@ -17,10 +17,10 @@ namespace vb01{
 	}
 
 	Node::~Node(){
-		for(Light *l : lights)
-			delete l;
 		for(Mesh *m : meshes)
 			delete m;
+		for(Light *l : lights)
+			delete l;
 		for(ParticleEmitter *p : emitters)
 			delete p;
 		for(Text *t : texts)
@@ -43,8 +43,6 @@ namespace vb01{
 				c->update();
 			for(ParticleEmitter *p : emitters)
 				p->update();
-			/*
-				*/
 		}
 	}
 
@@ -59,7 +57,8 @@ namespace vb01{
 		for(int i=0;i<children.size()&&id==-1;i++)
 			if(children[i]==child)
 				id=i;
-		children.erase(children.begin()+id);
+		if(id!=-1)
+			children.erase(children.begin()+id);
 	}
 
 	void Node::attachMesh(Mesh *mesh){
diff --git a/particleEmitter.cpp b/particleEmitter.cpp
index 2d9c657..586063d 100755
--- a/particleEmitter.cpp
+++ b/particleEmitter.cpp
@@ -14,8 +14,6 @@ using namespace glm;
 using namespace std;
 
 namespace vb01{
-	int n=0;
-
 	ParticleEmitter::ParticleEmitter(int numParticles){
 		this->numParticles=numParticles;
 
@@ -101,12 +99,9 @@ namespace vb01{
 				if(2*i+2+offset<numParticles&&(particles[i+offset]->d<particles[2*i+1+offset]->d||particles[i+offset]->d<particles[2*i+2+offset]->d)){
 					bool leftChild=particles[2*i+1+offset]->d>particles[2*i+2+offset]->d;
 					swap(particles[i+offset],leftChild?particles[2*i+1+offset]:particles[2*i+2+offset]);
-					n++;
 				}
-				else if(2*i+2+offset==numParticles&&particles[i+offset]->d<particles[2*i+1+offset]->d){
+				else if(2*i+2+offset==numParticles&&particles[i+offset]->d<particles[2*i+1+offset]->d)
 					swap(particles[i+offset],particles[2*i+1+offset]);
-					n++;
-				}
 			}
 			for(int i=0;2*i+1<numParticles;i++){
 				if(2*i+2+offset<numParticles&&(particles[i+offset]->d<particles[2*i+1+offset]->d||particles[i+offset]->d<particles[2*i+2+offset]->d))
@@ -120,10 +115,8 @@ namespace vb01{
 	}
 	
 	void ParticleEmitter::heapSort(){
-		n=0;
 		for(int i=0;i<numParticles;i++)
 			makeHeap(i);
-		cout<<n<<endl;
 	}
 	
 	void ParticleEmitter::update(){
@@ -180,18 +173,8 @@ namespace vb01{
 			particles[i]->d=cos(camDir.getAngleBetween((v0-camPos).norm()))*camPos.getDistanceFrom(v0);
 		}
 		heapSort();
-		/*
-		for(int i=0;i<numParticles;i++){
-			for(int j=i;j<numParticles-1;j++){
-				Vector3 v1=particles[j]->trans,v2=particles[j+1]->trans;
-				float d1=cos(camDir.getAngleBetween((v1-camPos).norm()))*camPos.getDistanceFrom(v1);
-				float d2=cos(camDir.getAngleBetween((v2-camPos).norm()))*camPos.getDistanceFrom(v2);
-				if(d1<d2)
-					swap(particles[j],particles[j+1]);
-			}
-		}
-		*/
 		glBindVertexArray(VAO);
+		glPolygonMode(GL_FRONT_AND_BACK,GL_FILL);
 		glDrawElementsInstanced(GL_TRIANGLES,6,GL_UNSIGNED_INT,0,numParticles);	
 		for(int i=0;i<numParticles;i++){
 		}