diff --git a/CMakeLists.txt b/CMakeLists.txt
index ebcfed9185799f66effcd54496cb507945c3a2d5..53fd9cf97d4a5c5e04b257d33df7a5ee49f1b9bc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -22,7 +22,7 @@ add_executable(${PROJECT_NAME}
         src/rendering/shaders/BasicShader.cpp src/rendering/shaders/BasicShader.h
         src/rendering/shaders/PhongShader.cpp src/rendering/shaders/PhongShader.h
         src/geometries/ParamSurface.cpp src/geometries/ParamSurface.h
-        src/geometries/VertexData.h src/rendering/materials/Material.cpp src/rendering/materials/Material.h src/rendering/textures/Texture.cpp src/rendering/textures/Texture.h src/rendering/lights/Light.cpp src/rendering/lights/Light.h)
+        src/geometries/VertexData.h src/rendering/materials/Material.cpp src/rendering/materials/Material.h src/rendering/textures/Texture.cpp src/rendering/textures/Texture.h src/rendering/lights/Light.cpp src/rendering/lights/Light.h src/geometries/VertexData.cpp src/utils/OBJReader.cpp src/utils/OBJReader.h src/geometries/ObjGeometry.cpp src/geometries/ObjGeometry.h)
 
 # opengl
 find_package(OpenGL REQUIRED)
diff --git a/data/cone.obj b/data/cone.obj
new file mode 100644
index 0000000000000000000000000000000000000000..5bbafc9db9b6d78705294d0a7e48de47a6ac0c72
--- /dev/null
+++ b/data/cone.obj
@@ -0,0 +1,197 @@
+# Blender v2.82 (sub 7) OBJ File: ''
+# www.blender.org
+o Cone
+v 0.000000 -1.000000 -1.000000
+v 0.195090 -1.000000 -0.980785
+v 0.382683 -1.000000 -0.923880
+v 0.555570 -1.000000 -0.831470
+v 0.707107 -1.000000 -0.707107
+v 0.831470 -1.000000 -0.555570
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+vn -0.2599 0.4455 -0.8567
+vn -0.0878 0.4455 -0.8910
+vn 0.0000 -1.0000 0.0000
+s off
+f 1/1/1 24/2/1 2/3/1
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diff --git a/data/plane.mtl b/data/plane.mtl
new file mode 100644
index 0000000000000000000000000000000000000000..e8374a50077064018071fc2cc2b39cdb5745771f
--- /dev/null
+++ b/data/plane.mtl
@@ -0,0 +1,12 @@
+# Blender MTL File: 'None'
+# Material Count: 1
+
+newmtl Material
+Ns 323.999994
+Ka 1.000000 1.000000 1.000000
+Kd 0.800000 0.800000 0.800000
+Ks 0.500000 0.500000 0.500000
+Ke 0.000000 0.000000 0.000000
+Ni 1.450000
+d 1.000000
+illum 2
diff --git a/data/plane.obj b/data/plane.obj
new file mode 100644
index 0000000000000000000000000000000000000000..91b55257c1853c87a6e7e9e8e73d73ffb62fb810
--- /dev/null
+++ b/data/plane.obj
@@ -0,0 +1,17 @@
+# Blender v2.82 (sub 7) OBJ File: ''
+# www.blender.org
+mtllib plane.mtl
+o Cube
+v 0.150000 0.150000 0.150000
+v 0.150000 -0.150000 0.150000
+v -0.150000 0.150000 0.150000
+v -0.150000 -0.150000 0.150000
+vt 0.625000 0.750000
+vt 0.375000 1.000000
+vt 0.375000 0.750000
+vt 0.625000 1.000000
+vn 0.0000 0.0000 1.0000
+usemtl Material
+s off
+f 1/1/1 4/2/1 2/3/1
+f 1/1/1 3/4/1 4/2/1
diff --git a/data/sphere.obj b/data/sphere.obj
new file mode 100644
index 0000000000000000000000000000000000000000..1857a0f56375ab7414389e1ff129b2075aa39ebb
--- /dev/null
+++ b/data/sphere.obj
@@ -0,0 +1,269 @@
+# Blender v2.82 (sub 7) OBJ File: ''
+# www.blender.org
+o Icosphere_Icosphere.001
+v 0.000000 -0.250000 0.000000
+v 0.264448 -0.111805 0.131431
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+v -0.326875 -0.111804 0.000000
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diff --git a/data/sphere_normal_test.obj b/data/sphere_normal_test.obj
new file mode 100644
index 0000000000000000000000000000000000000000..40d7a5d2c430758853f0fa0cd66595589bb90375
--- /dev/null
+++ b/data/sphere_normal_test.obj
@@ -0,0 +1,2541 @@
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+# www.blender.org
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diff --git a/data/susanne.obj b/data/susanne.obj
new file mode 100644
index 0000000000000000000000000000000000000000..066fbe0e174e9fc4143d2191ecc5119839ddb892
--- /dev/null
+++ b/data/susanne.obj
@@ -0,0 +1,2977 @@
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+# www.blender.org
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diff --git a/data/test.obj b/data/test.obj
new file mode 100644
index 0000000000000000000000000000000000000000..0ae2edc959a2e658cf6ecf493a719643f636913a
--- /dev/null
+++ b/data/test.obj
@@ -0,0 +1,47 @@
+# Blender3D v249 OBJ File: untitled.blend
+# www.blender3d.org
+mtllib cube.mtl
+v 1.000000 -1.000000 -1.000000
+v 1.000000 -1.000000 1.000000
+v -1.000000 -1.000000 1.000000
+v -1.000000 -1.000000 -1.000000
+v 1.000000 1.000000 -1.000000
+v 0.999999 1.000000 1.000001
+v -1.000000 1.000000 1.000000
+v -1.000000 1.000000 -1.000000
+vt 0.748573 0.750412
+vt 0.749279 0.501284
+vt 0.999110 0.501077
+vt 0.999455 0.750380
+vt 0.250471 0.500702
+vt 0.249682 0.749677
+vt 0.001085 0.750380
+vt 0.001517 0.499994
+vt 0.499422 0.500239
+vt 0.500149 0.750166
+vt 0.748355 0.998230
+vt 0.500193 0.998728
+vt 0.498993 0.250415
+vt 0.748953 0.250920
+vn 0.000000 0.000000 -1.000000
+vn -1.000000 -0.000000 -0.000000
+vn -0.000000 -0.000000 1.000000
+vn -0.000001 0.000000 1.000000
+vn 1.000000 -0.000000 0.000000
+vn 1.000000 0.000000 0.000001
+vn 0.000000 1.000000 -0.000000
+vn -0.000000 -1.000000 0.000000
+usemtl Material_ray.png
+s off
+f 5/1/1 1/2/1 4/3/1
+f 5/1/1 4/3/1 8/4/1
+f 3/5/2 7/6/2 8/7/2
+f 3/5/2 8/7/2 4/8/2
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+f 8/11/7 7/12/7 6/10/7
+f 1/2/8 2/9/8 3/13/8
+f 1/2/8 3/13/8 4/14/8
\ No newline at end of file
diff --git a/data/test_small.obj b/data/test_small.obj
new file mode 100644
index 0000000000000000000000000000000000000000..641148e0ebf21e3e9ef7f1abdbd0430b31e23a75
--- /dev/null
+++ b/data/test_small.obj
@@ -0,0 +1,6 @@
+v 0.000000 0.000000 0.000000
+v 1.000000 1.000000 0.000000
+v -1.000000 -1.000000 0.000000
+vt 0.000000 0.000000
+vn 0.000000 1.000000 0.000000
+f 1/2/3 1/1/1 1/1/1
\ No newline at end of file
diff --git a/renders/rename_png_to_bmp.py b/renders/rename_png_to_bmp.py
index a97bea928afa419b81584e7ce36e1e2deb1149a6..617b1925e626bb38533643f88353bd1b76f96b2f 100755
--- a/renders/rename_png_to_bmp.py
+++ b/renders/rename_png_to_bmp.py
@@ -11,5 +11,5 @@ for path in pathlib.Path(".").iterdir():
         old_extension = path.suffix
         directory = path.parent
         new_name = old_name + ".bmp"
-        
+
         path.rename(pathlib.Path(directory, new_name))
diff --git a/src/geometries/Geometry.h b/src/geometries/Geometry.h
index ccde19ede9c5fec3ff5cdcca12b58350bd8fa408..96f5b3fbca56606b0f1f5155cfffc00ac2004456 100644
--- a/src/geometries/Geometry.h
+++ b/src/geometries/Geometry.h
@@ -16,6 +16,11 @@ public:
 
     virtual void Draw() = 0;
 
+    virtual VertexData GetVertexDataByUV(float u, float v) {
+        //TODO fix this horrible quick stuff
+        return vtxData[std::rand()%vtxData.size()];
+    };
+
     ~Geometry();
 };
 
diff --git a/src/geometries/ObjGeometry.cpp b/src/geometries/ObjGeometry.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..ba4976b4fe1d8cde2cd2c4d060583651f328b405
--- /dev/null
+++ b/src/geometries/ObjGeometry.cpp
@@ -0,0 +1,62 @@
+#include "ObjGeometry.h"
+
+ObjGeometry::ObjGeometry(const std::string &objPath) :
+        Geometry(),
+        objReader(objPath, vtxData) {
+    Initialize();
+}
+
+void ObjGeometry::Initialize() {
+    glBufferData(GL_ARRAY_BUFFER, sizeof(VertexData) * vtxData.size(), &vtxData[0], GL_STATIC_DRAW);
+    // Enable the vertex attribute arrays
+    glEnableVertexAttribArray(0);  // attribute array 0 = POSITION
+    glEnableVertexAttribArray(1);  // attribute array 1 = NORMAL
+    glEnableVertexAttribArray(2);  // attribute array 2 = TEXCOORD
+    // attribute array, components/attribute, component type, normalize?, stride, offset
+    glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(VertexData), (void *) offsetof(VertexData, position));
+    glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, sizeof(VertexData), (void *) offsetof(VertexData, normal));
+    glVertexAttribPointer(2, 2, GL_FLOAT, GL_FALSE, sizeof(VertexData), (void *) offsetof(VertexData, texcoord));
+}
+
+void ObjGeometry::Draw() {
+    glBindVertexArray(vao);
+    glDrawArrays(GL_TRIANGLES, 0, vtxData.size());
+}
+
+VertexData ObjGeometry::GetVertexDataByUV(float u, float v) {
+
+    auto calc_a_b_c = [](vec2 p, vec2 t1, vec2 t2, vec2 t3) {
+        float denom = (t2.y - t3.y) * (t1.x - t3.x) + (t3.x - t2.x) * (t1.y - t3.y);
+        float a = ((t2.y - t3.y) * (p.x - t3.x) + (t3.x - t2.x) * (p.y - t3.y)) / denom;
+        float b = ((t3.y - t1.y) * (p.x - t3.y) + (t1.x - t3.x) * (p.y - t3.y)) / denom;
+
+        return vec3(a, b, 1 - a - b);
+    };
+
+    // iterates through all of the triangles of the mesh
+    for (size_t i = 0; i < vtxData.size(); i += 3) {
+        VertexData t1 = vtxData.at(i);
+        VertexData t2 = vtxData.at(i + 1);
+        VertexData t3 = vtxData.at(i + 2);
+
+        // check if point is inside the triangle
+        // this could be in a function, but I'm doing premature optimization - cause of all evil...
+        // using baricentric method:
+        // p = a*t1 + b*t2 + c*t3
+        // p is inside triangle (t1, t2, t3) if and only if ( 0 <= a,b,c <= 1 )
+        vec3 a_b_c{calc_a_b_c({u, v}, t1.texcoord, t2.texcoord, t3.texcoord)};
+
+        // if point is inside the triangle
+        if (0 <= a_b_c.x && a_b_c.x <= 1 &&
+            0 <= a_b_c.y && a_b_c.y <= 1 &&
+            0 <= a_b_c.z && a_b_c.z <= 1) {
+            return {
+                    a_b_c.x * t1.position + a_b_c.y * t2.position + a_b_c.z * t3.position,
+                    a_b_c.x * t1.normal + a_b_c.y * t2.normal + a_b_c.z * t3.normal,
+                    {u, v}
+            };
+        }
+    }
+
+    return {(VertexData) false};
+}
diff --git a/src/geometries/ObjGeometry.h b/src/geometries/ObjGeometry.h
new file mode 100644
index 0000000000000000000000000000000000000000..80937ef926b8fd61dc5cd546ded19609bc9fadc0
--- /dev/null
+++ b/src/geometries/ObjGeometry.h
@@ -0,0 +1,29 @@
+#ifndef BRAVE2_OBJGEOMETRY_H
+#define BRAVE2_OBJGEOMETRY_H
+
+
+#include "../utils/math.h"
+#include "../utils/OBJReader.h"
+#include "../objects/Object.h"
+
+
+// This class assumes that the mesh is made up entirely of triangles
+// this is important for the GetVertexDataByUV function
+class ObjGeometry : public Geometry {
+    std::string objPath;
+    OBJReader objReader;
+
+public:
+    //TODO read every data from OBJ file
+    ObjGeometry(const std::string &objPath);
+
+    void Initialize();
+
+    void Draw() override;
+
+    // Assumes that the mesh is made up of triangles
+    VertexData GetVertexDataByUV(float u, float v) override;
+};
+
+
+#endif //BRAVE2_OBJGEOMETRY_H
diff --git a/src/geometries/PBDSimulation.cpp b/src/geometries/PBDSimulation.cpp
index 17b303a57de290bd7fc6a16b775e356a35bbd33f..173a5e7f65fe24c059936b0feffec5543f0494b2 100644
--- a/src/geometries/PBDSimulation.cpp
+++ b/src/geometries/PBDSimulation.cpp
@@ -1,3 +1,4 @@
+#include <random>
 #include "PBDSimulation.h"
 
 void PBDSimulation::addForce(vec3 force) {
@@ -20,23 +21,24 @@ PBDSimulation::PBDSimulation(HeadObject *_head, size_t _nr_sims, size_t _nr_segm
 }
 
 void PBDSimulation::propagateHead() {
-    srand(time(nullptr));
-    vec3 head(0,0,0);
-    float step = M_PI / nrStrands;
-    float currAngle = M_PI;
-    float r = 0.20f;
-
-    // if there is only one strand, then place it in the middle
-    if (nrStrands == 1) r = 0.0;
+    std::random_device rd;
+    std::mt19937 gen(rd());
+    std::uniform_real_distribution<float> dis(.01, .99);
 
     for (size_t i = 0; i < nrStrands; i++) {
-        vec3 color = util::getRandomRGBColorAround(vec3(222.0f, 101.0f, 32.0f), vec3(40.0f, 20.0f, 20.0f));
-        vec3 curr_pos(head.x + cosf(currAngle) * r * 1.2f, head.y + sinf(currAngle) * r * 1.1f, head.z);
+        float currU = dis(gen);
+        float currV = dis(gen);
+        VertexData currPos = head->GetVertexDataByUV(currU, currV);
+        while (currPos.normal.y > .0f && !currPos.valid) {
+            currU = dis(gen);
+            currV = dis(gen);
+            std::cout << currU << " " << currV << std::endl;
+            currPos = head->GetVertexDataByUV(currU, currV);
+        }
 
-        strands.emplace_back(CreateStrand(nrSegments, lSeg, curr_pos, color));
-        currAngle -= step;
+        vec3 color = util::getRandomRGBColorAround(vec3(222.0f, 101.0f, 32.0f), vec3(40.0f, 20.0f, 20.0f));
+        strands.emplace_back(CreateStrand(nrSegments, lSeg, currPos.position * vec3(1, -1, 1), color));
     }
-
 }
 
 void PBDSimulation::update(float dt) {
diff --git a/src/geometries/ParamSurface.cpp b/src/geometries/ParamSurface.cpp
index 704f08d66f9a37333a061394e4c6cdda24b28a4a..c1126af2d9d8cb687af264ef19590e50d33e9672 100644
--- a/src/geometries/ParamSurface.cpp
+++ b/src/geometries/ParamSurface.cpp
@@ -41,8 +41,12 @@ void ParamSurface::Draw() {
     for (unsigned int i = 0; i < nStrips; i++) glDrawArrays(GL_TRIANGLE_STRIP, i * nVtxPerStrip, nVtxPerStrip);
 }
 
+VertexData ParamSurface::GetVertexDataByUV(float u, float v) {
+    return GenVertexData(u, v);
+}
+
 Sphere::Sphere() {
-    create(20, 20);
+    create(tessellationLevel, tessellationLevel);
 }
 
 void Sphere::eval(Dnum2 &U, Dnum2 &V, Dnum2 &X, Dnum2 &Y, Dnum2 &Z) {
diff --git a/src/geometries/ParamSurface.h b/src/geometries/ParamSurface.h
index 5a45dc5505becbe2d0e6cce97b6bef446cc277da..3132668c0ed7cf4cd875b163de2450425fcf230b 100644
--- a/src/geometries/ParamSurface.h
+++ b/src/geometries/ParamSurface.h
@@ -1,11 +1,10 @@
 #ifndef BRAVE2_PARAMSURFACE_H
 #define BRAVE2_PARAMSURFACE_H
 
-
 #include "Geometry.h"
 
 //TODO put this in a better place
-const int tessellationLevel = 20;
+const int tessellationLevel = 10;
 
 /**
  * ParamSurface
@@ -24,6 +23,8 @@ public:
     void create(int N = tessellationLevel, int M = tessellationLevel);
 
     void Draw();
+
+    VertexData GetVertexDataByUV(float u, float v) override;
 };
 
 /**
diff --git a/src/geometries/VertexData.cpp b/src/geometries/VertexData.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..9f8afeca148dc6b78385aa6e06f5f087ffe40075
--- /dev/null
+++ b/src/geometries/VertexData.cpp
@@ -0,0 +1,13 @@
+#include "VertexData.h"
+
+std::ostream &operator<<(std::ostream &out, const VertexData &vD) {
+    return out << vD.texcoord << " -> P: " << vD.position << " N: " << vD.normal;
+}
+
+VertexData::VertexData(vec3 p, vec3 n, vec2 uv) :
+        position(p), normal(n), texcoord(uv) {
+
+}
+
+VertexData::VertexData() {
+}
diff --git a/src/geometries/VertexData.h b/src/geometries/VertexData.h
index 1ab9d7a0ccad7d340e3762062f442bfa2b63b1f2..5566618f201ac49a765ba3d91f5c1abc9455d7ba 100644
--- a/src/geometries/VertexData.h
+++ b/src/geometries/VertexData.h
@@ -4,8 +4,15 @@
 #include "../utils/math.h"
 
 struct VertexData {
+    // needed for GetVertexByUV function
+    bool valid = true;
     vec3 position, normal;
     vec2 texcoord;
+    VertexData();
+    VertexData(vec3 p, vec3 n, vec2 uv);
+    explicit VertexData(bool valid, vec3 p = {0,0,0}, vec3 n = {0,0,0}, vec2 uv = {0,0}){};
 };
 
+std::ostream &operator<<(std::ostream &out, const VertexData &vD);
+
 #endif //BRAVE2_VERTEXDATA_H
diff --git a/src/main.cpp b/src/main.cpp
index d87537b31f3feb4c5df2b127bc3348e6b92c2988..05a687e00be0e703593415c20ef6642e8133b2fa 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -18,7 +18,6 @@ int keyArr[350];
 
 InputHandler *InputHandler = InputHandler->GetInstance();
 
-
 vec3 forceGenerated(0.0f, 0.0f, 0.0f);
 bool resetExternalForces = false;
 bool capturing = false;
@@ -30,6 +29,8 @@ Scene Scene(WIDTH, HEIGHT);
 static void Initialize() {
     glViewport(0, 0, WIDTH, HEIGHT);
     glMatrixMode(GL_MODELVIEW);
+    glEnable(GL_DEPTH_TEST);
+    glDepthMask(GL_TRUE);
     glLoadIdentity();
     glClearColor(196.0f / 255.0f, 233.0f / 255.0f, 241.0f / 255.0f, 1.0f);
 }
diff --git a/src/objects/HeadObject.cpp b/src/objects/HeadObject.cpp
index e64d4fa5db5f0d39802b23b48b94cb40f7952126..50f17982bdf637b794bbe71483c0e42896e4733f 100644
--- a/src/objects/HeadObject.cpp
+++ b/src/objects/HeadObject.cpp
@@ -1,7 +1,23 @@
 #include "HeadObject.h"
 
 
-HeadObject::HeadObject(Shader *_shader, Geometry *_geometry, Material *_material, Texture *_texture) :
+HeadObject::HeadObject(Shader *_shader, ObjGeometry *_geometry, Material *_material, Texture *_texture) :
         Object(_shader, _geometry, _material, _texture) {}
 
+VertexData HeadObject::GetVertexDataByUV(float u, float v) {
+    mat4 M, Minv;
+    SetModelingTransform(M, Minv);
+    VertexData vD{reinterpret_cast<ObjGeometry*>(geometry)->GetVertexDataByUV(u, v)};
+    vec4 WP = vec4(vD.position.x, vD.position.y, vD.position.z, 1) * M;
+    vec4 WN = vec4(vD.normal.x, vD.normal.y, vD.normal.z, 0) * M;
+    vD.position = vec3(WP.x, WP.y, WP.z);
+    vD.normal = vec3(WN.x, WN.y, WN.z);
+
+    return vD;
+}
+
+ObjGeometry *HeadObject::getGeometry() {
+    return reinterpret_cast<ObjGeometry*>(geometry);
+}
+
 
diff --git a/src/objects/HeadObject.h b/src/objects/HeadObject.h
index 22166a3098689902dfc97b0dbd15ab6e2fabd965..5c2bb5439fb2891019300932e884f7127237eb7d 100644
--- a/src/objects/HeadObject.h
+++ b/src/objects/HeadObject.h
@@ -2,10 +2,15 @@
 #define BRAVE2_HEADOBJECT_H
 
 #include "Object.h"
+#include "../geometries/ObjGeometry.h"
 
 class HeadObject : public Object {
 public:
-    HeadObject(Shader *_shader, Geometry *_geometry, Material *_material, Texture *_texture);
+    HeadObject(Shader *_shader, ObjGeometry *_geometry, Material *_material, Texture *_texture);
+
+    VertexData GetVertexDataByUV(float u, float v);
+
+    ObjGeometry* getGeometry();
 };
 
 
diff --git a/src/rendering/Camera.cpp b/src/rendering/Camera.cpp
index fe89e0f38216a7f7f0af7746bf7fe32415afba85..ea2f1ce0ff799b16882f3e8ff438298cc1624070 100644
--- a/src/rendering/Camera.cpp
+++ b/src/rendering/Camera.cpp
@@ -31,7 +31,9 @@ mat4 Camera::P() const {
 }
 
 void Camera::Translate(vec3 dir) {
-    wEye += dir;
+    vec3 forward = dir * vec3(0, 0, 1.f);
+
+    wEye = normalize(wEye + dir) * length(wEye) + forward;
 }
 
 RenderState Camera::getState() {
diff --git a/src/rendering/Scene.cpp b/src/rendering/Scene.cpp
index 4d0f5df85152d1a4e8e0a65bfa8b8fd202ea7720..f8398c86679a2bcdbf9de5c444df6b8f23845217 100644
--- a/src/rendering/Scene.cpp
+++ b/src/rendering/Scene.cpp
@@ -2,62 +2,75 @@
 #include "shaders/BasicShader.h"
 #include "../geometries/ParamSurface.h"
 #include "shaders/PhongShader.h"
+#include "../utils/OBJReader.h"
+#include "../geometries/ObjGeometry.h"
 
-Scene::Scene(int w, int h) : camera(vec3(0, -0.2f, 1), // Camera position (wEye)
-                                    vec3(0, -.2f, 0), // wLookat
+Scene::Scene(int w, int h) : camera(vec3(0, -.15f, .5), // Camera position (wEye)
+                                    vec3(0, -.15f, 0), // wLookat
                                     vec3(0, 1, 0), // wVup
                                     w, h) {
 }
 
+
 void Scene::Build() {
-    vec3 headCenter(0.0f, 0.0f, 0.0f);
     size_t nrSims = 200;
     size_t nrSegments = 30;
     float lSeg = 0.025f;
 
+
     Shader *basicShader = new BasicShader();
     basicShader->Bind(camera.getState());
 
     auto sphere = new Sphere();
     Shader *phongShader = new PhongShader();
     Material *headMaterial = new Material;
-    headMaterial->kd = vec3(0.6f, 0.2f, .2f);
-    headMaterial->ks = vec3(.3, .2, .2);
-    headMaterial->ka = vec3(.2f, .2f, .2f);
-    headMaterial->shininess = 100;
+    headMaterial->kd = vec3(0.5f, 0.5f, 0.5f);
+    headMaterial->ks = vec3(.7f, .7f, .7f);
+    headMaterial->ka = vec3(.15f, .15f, .15f);
+    headMaterial->shininess = 10;
 
-//    Texture *headTexture = new UniformColorTexture(.6f, .2f, 0);
-    Texture *headTexture = new CheckerBoardTexture(10, 10);
+    Texture *headTexture = new UniformColorTexture(.25f, .25f, .35f);
+//    Texture *headTexture = new CheckerBoardTexture(1, 0);
 
-    auto headObject = new HeadObject(phongShader, sphere, headMaterial, headTexture);
+//    auto headObject = new HeadObject(phongShader, sphere, headMaterial, headTexture);
+    auto headObject = new HeadObject(phongShader, new ObjGeometry("../data/sphere.obj"), headMaterial, headTexture);
 
-    headObject->Scale(vec3(.35, .3, .3));
+    headObject->Scale(vec3(.35, .35, .35));
     objects.push_back(headObject);
 
     auto PBDSim = new PBDSimulation(headObject, nrSims, nrSegments, lSeg);
     auto simulationObject = new HairSimObject(headObject, basicShader, PBDSim);
     sims.push_back(simulationObject);
 
+//    auto testObject =
+//            new Object(phongShader,
+//                       new ObjGeometry("../data/sphere.obj"),
+//                       headMaterial,
+//                       headTexture);
+//
+//    objects.push_back(testObject);
+
     // Lights
-    lights.resize(3);
-    lights[0].wLightPos = vec4(0, 1, 0, 0);    // ideal point -> directional light source
-    lights[0].La = vec3(0.1f, 0.1f, 1);
+    lights.resize(1);
+    lights[0].wLightPos = vec4(0.0f, 3.0f, 1.5f, 0);    // ideal point -> directional light source
+    lights[0].La = vec3(3.0f, 3.0f, 3.0f);
     lights[0].Le = vec3(1, 1, 1);
 
-    lights[1].wLightPos = vec4(-1, .2, -1, 0);    // ideal point -> directional light source
-    lights[1].La = vec3(0.2f, 0.2f, 0.2f);
-    lights[1].Le = vec3(5, 3, 2);
+//    lights[1].wLightPos = vec4(2.0f, 3.0f, 1.0f, 0);    // ideal point -> directional light source
+//    lights[1].La = vec3(0.2f, 0.2f, 0.2f);
+//    lights[1].Le = vec3(1, 1, 1);
 
-    lights[2].wLightPos = vec4(0, 0, -1, 0);    // ideal point -> directional light source
-    lights[2].La = vec3(0.1f, 0.1f, 0.1f);
-    lights[2].Le = vec3(5, 3, 2);
+//    lights[2].wLightPos = vec4(0, 0, 1, 0);    // ideal point -> directional light source
+//    lights[2].La = vec3(0.1f, 0.1f, 0.1f);
+//    lights[2].Le = vec3(1, 1, 1);
 }
 
 void Scene::Render() {
     RenderState state = camera.getState();
     state.lights = lights;
-    for (auto *o: objects) o->Draw(state);
+
     for (auto *so: sims) so->Draw(state);
+    for (auto *o: objects) o->Draw(state);
 }
 
 //delta_t is infinitesimal
diff --git a/src/rendering/shaders/PhongShader.h b/src/rendering/shaders/PhongShader.h
index 23915578580327e7eae8381b980d89edf01e4f99..e776852c08aee7ac0cfdf41917fe6676181abb94 100644
--- a/src/rendering/shaders/PhongShader.h
+++ b/src/rendering/shaders/PhongShader.h
@@ -71,7 +71,7 @@ class PhongShader : public Shader {
 		void main() {
 			vec3 N = normalize(wNormal);
 			vec3 V = normalize(wView);
-			if (dot(N, V) < 0) N = -N;	// prepare for one-sided surfaces like Mobius or Klein
+//			if (dot(N, V) < 0) N = -N;	// prepare for one-sided surfaces like Mobius or Klein
 			vec3 texColor = texture(diffuseTexture, texcoord).rgb;
 			vec3 ka = materials.ka * texColor;
 			vec3 kd = materials.kd * texColor;
@@ -86,7 +86,7 @@ class PhongShader : public Shader {
                            (kd * texColor * cost + materials.ks * pow(cosd, materials.shininess)) * lights[i].Le;
 			}
 			fragmentColor = vec4(radiance, 1);
-            fragmentColor = vec4(N, 1);
+//            fragmentColor = vec4(N, 1);
 		}
 	)";
 public:
diff --git a/src/utils/OBJReader.cpp b/src/utils/OBJReader.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..d2b41ed43d3674a547c0b2c5866f6ee651238a18
--- /dev/null
+++ b/src/utils/OBJReader.cpp
@@ -0,0 +1,89 @@
+#include "OBJReader.h"
+
+OBJReader::OBJReader(const std::string &filePath, std::vector<VertexData> &out_vtxData) : is(filePath) {
+
+    if (!is) {
+        std::cerr << "Can't open OBJ file: " << filePath << std::endl;
+        return;
+    }
+
+    readData();
+
+    for (auto curr: out_vtxData)
+        std::cout << curr << std::endl;
+    for (unsigned int i : vertexIndices)
+        out_vtxData.emplace_back(temp_vertices[i - 1], temp_normals[i - 1], temp_uvs[i - 1]);
+
+}
+
+void OBJReader::readData() {
+    std::string lineType;
+
+    // read the file word by word
+    // the >> operator will only extract what can be considered a word from the stream,
+    // using whitespaces as separators
+    while (is >> lineType) {
+        if (lineType == "#")
+            // Comment, skip the line
+            std::getline(is, lineType);
+        else if (lineType == "v")
+            readVertexLine();
+        else if (lineType == "vt")
+            readUVLine();
+        else if (lineType == "vn")
+            readNormalLine();
+        else if (lineType == "f")
+            readFaceLine();
+        else {
+            // ignore everything else
+            std::cerr << "ignored line: " << lineType;
+            // get rest of the line
+            std::getline(is, lineType);
+            // output rest of the line
+            std::cerr << " " << lineType << std::endl;
+        }
+    }
+}
+
+void OBJReader::readVertexLine() {
+    // Vertex
+    vec3 v;
+    is >> v.x >> v.y >> v.z;
+    temp_vertices.push_back(v);
+}
+
+void OBJReader::readUVLine() {
+    // UV coordinates
+    vec2 uv;
+    is >> uv.x >> uv.y;
+    temp_uvs.push_back(uv);
+}
+
+void OBJReader::readNormalLine() {
+    // Normal vector
+    vec3 n;
+    is >> n.x >> n.y >> n.z;
+    temp_normals.push_back(n);
+}
+
+void OBJReader::readFaceLine() {
+// Face
+    std::string v1, v2, v3;
+    unsigned int v[3], uv[3], n[3];
+    is >> v[0] >> chlit('/') >> uv[0] >> chlit('/') >> n[0];
+    is >> v[1] >> chlit('/') >> uv[1] >> chlit('/') >> n[1];
+    is >> v[2] >> chlit('/') >> uv[2] >> chlit('/') >> n[2];
+    if (is.fail()) {
+        std::cerr << "can't read face data from OBJ file" << std::endl;
+        throw std::exception();
+    }
+    vertexIndices.push_back(v[0]);
+    vertexIndices.push_back(v[1]);
+    vertexIndices.push_back(v[2]);
+    uvIndices.push_back(uv[0]);
+    uvIndices.push_back(uv[1]);
+    uvIndices.push_back(uv[2]);
+    normalIndices.push_back(n[0]);
+    normalIndices.push_back(n[1]);
+    normalIndices.push_back(n[2]);
+}
diff --git a/src/utils/OBJReader.h b/src/utils/OBJReader.h
new file mode 100644
index 0000000000000000000000000000000000000000..82968f9e13c1e4524cbc2119e0499641afc17f0a
--- /dev/null
+++ b/src/utils/OBJReader.h
@@ -0,0 +1,46 @@
+#ifndef BRAVE2_OBJREADER_H
+#define BRAVE2_OBJREADER_H
+
+#include <string>
+#include <vector>
+#include <fstream>
+#include "math.h"
+#include "../geometries/VertexData.h"
+
+class OBJReader {
+    std::vector<unsigned int> vertexIndices, normalIndices, uvIndices;
+    std::vector<vec3> temp_vertices;
+    std::vector<vec3> temp_normals;
+    std::vector<vec2> temp_uvs;
+
+    std::ifstream is;
+
+public:
+    OBJReader(const std::string &filePath, std::vector<VertexData>& out_vtxData);
+
+    void readData();
+
+    void readVertexLine();
+
+    void readUVLine();
+
+    void readNormalLine();
+
+    void readFaceLine();
+};
+
+struct chlit {
+    char c_target;
+
+    chlit(char _c) : c_target(_c) {}
+
+    friend std::istream &operator>>(std::istream &is, chlit x) {
+        char c;
+        if (is >> c && c != x.c_target)
+            is.setstate(std::iostream::failbit);
+        return is;
+    }
+
+};
+
+#endif //BRAVE2_OBJREADER_H
diff --git a/src/utils/math.cpp b/src/utils/math.cpp
index c2c6192a82afe2b582e6c646c0050aa337071125..6bd46680d50951ca9b0a522bb419abf0a34d7e62 100644
--- a/src/utils/math.cpp
+++ b/src/utils/math.cpp
@@ -1,5 +1,9 @@
 #include "math.h"
 
+std::ostream &operator<<(std::ostream &out, const vec2 &v) {
+    return out << "(" << v.x << ", " << v.y << ")";
+}
+
 std::ostream &operator<<(std::ostream &out, const vec3 &v) {
     return out << "(" << v.x << ", " << v.y << ", " << v.z << ")";
 }
diff --git a/src/utils/math.h b/src/utils/math.h
index 11ede60f6dd10f645c52b341b7918ff1531929eb..3345f6a1a4c63a0ab12cc2230ee33eea6843eb28 100644
--- a/src/utils/math.h
+++ b/src/utils/math.h
@@ -64,6 +64,8 @@ inline vec2 normalize(const vec2 &v) { return v * (1 / length(v)); }
 
 inline vec2 operator*(float a, const vec2 &v) { return vec2(v.x * a, v.y * a); }
 
+// automatic vec2 printing
+std::ostream &operator<<(std::ostream &out, const vec2 &v);
 
 //--------------------------
 struct vec3 {
diff --git a/src/utils/util.cpp b/src/utils/util.cpp
index f8186e2edf2922a3fa93254ad0c11f19bde194d1..440547c498c9ba06301574eb93e511d292618cb9 100644
--- a/src/utils/util.cpp
+++ b/src/utils/util.cpp
@@ -1,3 +1,6 @@
+#include <GL/glew.h>
+#include <GLFW/glfw3.h>
+#include <random>
 #include "util.h"
 
 vec3 util::getRandomRGBColorAround(vec3 base, vec3 offset) {
@@ -12,4 +15,11 @@ vec3 util::getRandomRGBColorAround(vec3 base, vec3 offset) {
 
 float util::randomOffsetf(float base, float offset) {
     return (float) rand() / RAND_MAX * offset + base;
+}
+
+float util::randomBetween(float from, float to) {
+    std::random_device rd;
+    std::mt19937 gen(rd());
+    std::uniform_real_distribution<float> dis(from, to);
+    return dis(gen);
 }
\ No newline at end of file
diff --git a/src/utils/util.h b/src/utils/util.h
index 0552f786d70c6c5c3bba98e9b33c1462db5cba09..602331b9cd6b511856c6eaecac64236ac15e3d78 100644
--- a/src/utils/util.h
+++ b/src/utils/util.h
@@ -11,6 +11,9 @@ namespace util {
     vec3 getRandomRGBColorAround(vec3 base, vec3 offset);
 
     float randomOffsetf(float base, float offset);
+
+    /// random float in interval [from;to)
+    float randomBetween(float from, float to);
 }