Merge remote-tracking branch 'origin/master' into Networking

# Conflicts:
#	include/Game/PlayerSystem.h
#	src/Game/Game.cpp
#	src/Game/PlayerSystem.cpp

src/Engine/CMakeLists.txt

@@ -69,6 +69,12 @@ file(GLOB SOURCE_FILES_GUI
 )
 source_group(GUI FILES ${SOURCE_FILES_GUI})
 
+file(GLOB SOURCE_FILES_Collision
+    "${INCLUDE_PATH}/Collision/*.h"
+    "Collision/*.cpp"
+)
+source_group(Collision FILES ${SOURCE_FILES_Collision})
+
 file(GLOB SOURCE_FILES_Editor
 	"${INCLUDE_PATH}/Editor/*.h"
 	"Editor/*.cpp"
@@ -83,6 +89,7 @@ set(SOURCE_FILES
     ${SOURCE_FILES_GUI}
     ${SOURCE_FILES_Rendering}
     ${SOURCE_FILES_Rendering_Util}
+    ${SOURCE_FILES_Collision}
 	${CMAKE_SOURCE_DIR}/deps/include/imgui/imgui.cpp
 	${CMAKE_SOURCE_DIR}/deps/include/imgui/imgui_draw.cpp
 	${CMAKE_SOURCE_DIR}/deps/include/imgui/imgui_demo.cpp

src/Engine/Collision/Collision.cpp

@@ -0,0 +1,279 @@
+#include <algorithm>
+
+#include "Collision/Collision.h"
+#include "Engine/GLM.h"
+#include "Core/World.h"
+#include "Rendering/Model.h"
+
+namespace Collision
+{
+
+    //note: this one hasnt been delta adjusted like RayVsAABB has
+    bool RayAABBIntr(const Ray& ray, const AABB& box)
+    {
+        glm::vec3 w = 75.0f * ray.Direction();
+        glm::vec3 v = glm::abs(w);
+        glm::vec3 c = ray.Origin() - box.Center() + w;
+        glm::vec3 half = box.HalfSize();
+
+        if (abs(c.x) > v.x + half.x) {
+            return false;
+        }
+        if (abs(c.y) > v.y + half.y) {
+            return false;
+        }
+        if (abs(c.z) > v.z + half.z) {
+            return false;
+        }
+
+        if (abs(c.y*w.z - c.z*w.y) > half.y*v.z + half.z*v.y) {
+            return false;
+        }
+        if (abs(c.x*w.z - c.z*w.x) > half.x*v.z + half.z*v.x) {
+            return false;
+        }
+        return !(abs(c.x*w.y - c.y*w.x) > half.x*v.y + half.y*v.x);
+    }
+
+    bool RayVsAABB(const Ray& ray, const AABB& box)
+    {
+        float dummy;
+        return RayVsAABB(ray, box, dummy);
+    }
+
+    bool RayVsAABB(const Ray& ray, const AABB& box, float& outDistance)
+    {
+        glm::vec3 invdir = 1.0f / ray.Direction();
+        glm::vec3 origin = ray.Origin();
+
+        float t1 = (box.MinCorner().x - origin.x)*invdir.x;
+        float t2 = (box.MaxCorner().x - origin.x)*invdir.x;
+        float t3 = (box.MinCorner().y - origin.y)*invdir.y;
+        float t4 = (box.MaxCorner().y - origin.y)*invdir.y;
+        float t5 = (box.MinCorner().z - origin.z)*invdir.z;
+        float t6 = (box.MaxCorner().z - origin.z)*invdir.z;
+
+        float tmin = std::max(std::max(std::min(t1, t2), std::min(t3, t4)), std::min(t5, t6));
+        float tmax = std::min(std::min(std::max(t1, t2), std::max(t3, t4)), std::max(t5, t6));
+
+        //if (tmax < 0 || tmin > tmax)
+        //if tmin,tmax are almost the same (i.e. hitting exactly in the corner) then tmin might be slightly 
+        //greater than tmax becuase of floating-precision problems. fixed by adding a small delta to tmax
+        if (tmax < 0 || tmin>(tmax + 0.0001f))
+            return false;
+
+        outDistance = (tmin > 0) ? tmin : tmax;
+        return true;
+    }
+
+    bool AABBVsAABB(const AABB& a, const AABB& b)
+    {
+        const glm::vec3& aCenter = a.Center();
+        const glm::vec3& bCenter = b.Center();
+        const glm::vec3& aHSize = a.HalfSize();
+        const glm::vec3& bHSize = b.HalfSize();
+        //Test will probably exit because of the X and Z axes more often, so test them first.
+        if (abs(aCenter[0] - bCenter[0]) > (aHSize[0] + bHSize[0])) {
+            return false;
+        }
+        if (abs(aCenter[2] - bCenter[2]) > (aHSize[2] + bHSize[2])) {
+            return false;
+        }
+        return (abs(aCenter[1] - bCenter[1]) <= (aHSize[1] + bHSize[1]));
+    }
+
+    bool AABBVsAABB(const AABB& a, const AABB& b, glm::vec3& minimumTranslation)
+    {
+        minimumTranslation = glm::vec3(0, 0, 0);
+        const glm::vec3& aMax = a.MaxCorner();
+        const glm::vec3& bMax = b.MaxCorner();
+        const glm::vec3& aMin = a.MinCorner();
+        const glm::vec3& bMin = b.MinCorner();
+        const glm::vec3& bSize = b.Size();
+        const glm::vec3& aSize = a.Size();
+        float minOffset = INFINITY;
+        float off;
+        auto axisesIntersecting = glm::tvec3<bool, glm::highp>(false, false, false);
+        for (int i = 0; i < 3; ++i) {
+            off = bMax[i] - aMin[i];
+            if (off > 0 && off < bSize[i] + aSize[i]) {
+                if (off < minOffset) {
+                    minimumTranslation = glm::vec3();
+                    minimumTranslation[i] = minOffset = off;
+                }
+                axisesIntersecting[i] = true;
+            }
+            off = aMax[i] - bMin[i];
+            if (off > 0 && off < bSize[i] + aSize[i]) {
+                if (off < minOffset) {
+                    minOffset = off;
+                    minimumTranslation = glm::vec3();
+                    minimumTranslation[i] = -off;
+                }
+                axisesIntersecting[i] = true;
+            }
+        }
+        return glm::all(axisesIntersecting);
+    }
+
+    bool RayVsModel(const Ray& ray,
+        const std::vector<RawModel::Vertex>& modelVertices,
+        const std::vector<unsigned int>& modelIndices)
+    {
+        for (int i = 0; i < modelIndices.size(); ++i) {
+            glm::vec3 v0 = modelVertices[modelIndices[i]].Position;
+            glm::vec3 e1 = modelVertices[modelIndices[++i]].Position - v0;		//v1 - v0
+            glm::vec3 e2 = modelVertices[modelIndices[++i]].Position - v0;		//v2 - v0
+            glm::vec3 m = ray.Origin() - v0;
+            glm::vec3 MxE1 = glm::cross(m, e1);
+            glm::vec3 DxE2 = glm::cross(ray.Direction(), e2);
+            float DetInv = glm::dot(e1, DxE2);
+            if (std::abs(DetInv) < FLT_EPSILON) {
+                continue;
+            }
+            DetInv = 1.0f / DetInv;
+            float u = glm::dot(m, DxE2) * DetInv;
+            float v = glm::dot(ray.Direction(), MxE1) * DetInv;
+            //u,v can be very close to 0 but still negative sometimes. added a deltafactor to compensate for that problem
+            if ((u + 0.001f) < 0 || (v + 0.001f) < 0 || 1 < u + v) {
+                continue;
+            }
+            //Here, u and v are positive, u+v <= 1, and if distance is positive - triangle is hit.
+            if (0 <= glm::dot(e2, MxE1) * DetInv) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    bool RayVsModel(const Ray& ray,
+        const std::vector<RawModel::Vertex>& modelVertices,
+        const std::vector<unsigned int>& modelIndices,
+        float& outDistance,
+        float& outUCoord,
+        float& outVCoord)
+    {
+        outDistance = INFINITY;
+        bool hit = false;
+        for (int i = 0; i < modelIndices.size(); ++i) {
+            glm::vec3 v0 = modelVertices[modelIndices[i]].Position;
+            glm::vec3 e1 = modelVertices[modelIndices[++i]].Position - v0;		//v1 - v0
+            glm::vec3 e2 = modelVertices[modelIndices[++i]].Position - v0;		//v2 - v0
+            glm::vec3 m = ray.Origin() - v0;
+            glm::vec3 MxE1 = glm::cross(m, e1);
+            glm::vec3 DxE2 = glm::cross(ray.Direction(), e2);//pVec
+            float DetInv = glm::dot(e1, DxE2);
+            if (std::abs(DetInv) < FLT_EPSILON) {
+                continue;
+            }
+            DetInv = 1.0f / DetInv;
+            float dist = glm::dot(e2, MxE1) * DetInv;
+            if (dist >= outDistance) {
+                continue;
+            }
+            float u = glm::dot(m, DxE2) * DetInv;
+            float v = glm::dot(ray.Direction(), MxE1) * DetInv;
+
+            //u,v can be very close to 0 but still negative sometimes. added a deltafactor to compensate for that problem
+            //If u and v are positive, u+v <= 1, dist is positive, and less than closest.
+            if (0 <= (u + 0.001f) && 0 <= (v + 0.001f) && u + v <= 1 && 0 <= dist) {
+                outDistance = dist;
+                outUCoord = u;
+                outVCoord = v;
+                hit = true;
+            }
+        }
+        return hit;
+    }
+
+    bool RayVsModel(const Ray& ray,
+        const std::vector<RawModel::Vertex>& modelVertices,
+        const std::vector<unsigned int>& modelIndices,
+        glm::vec3& outHitPosition)
+    {
+        float u;
+        float v;
+        float dist;
+        bool hit = RayVsModel(ray, modelVertices, modelIndices, dist, u, v);
+        outHitPosition = ray.Origin() + dist * ray.Direction();
+        return hit;
+    }
+
+bool IsSameBoxProbably(const AABB& first, const AABB& second, const float epsilon)
+{
+    const glm::vec3& ma1 = first.MaxCorner();
+    const glm::vec3& ma2 = first.MaxCorner();
+    const glm::vec3& mi1 = second.MinCorner();
+    const glm::vec3& mi2 = second.MinCorner();
+    return (std::abs(ma1.x - ma2.x) < epsilon) &&
+        (std::abs(mi1.x - mi2.x) < epsilon) &&
+        (std::abs(ma1.z - ma2.z) < epsilon) &&
+        (std::abs(mi1.z - mi2.z) < epsilon) &&
+        (std::abs(ma1.y - ma2.y) < epsilon) &&
+        (std::abs(mi1.y - mi2.y) < epsilon);
+}
+
+bool attachAABBComponentFromModel(World* world, EntityID id)
+{
+    if (!world->HasComponent(id, "Model")) {
+        return false;
+    }
+    ComponentWrapper model = world->GetComponent(id, "Model");
+    ComponentWrapper collision = world->AttachComponent(id, "AABB");
+    Model* modelRes = ResourceManager::Load<Model>(model["Resource"]);
+    if (modelRes == nullptr) {
+        return false;
+    }
+
+    glm::mat4 modelMatrix = modelRes->m_Matrix;
+
+    glm::vec3 mini = glm::vec3(INFINITY, INFINITY, INFINITY);
+    glm::vec3 maxi = glm::vec3(-INFINITY, -INFINITY, -INFINITY);
+    for (const auto& v : modelRes->m_Vertices) {
+        const auto& wPos = modelMatrix * glm::vec4(v.Position.x, v.Position.y, v.Position.z, 1);
+        maxi.x = std::max(wPos.x, maxi.x);
+        maxi.y = std::max(wPos.y, maxi.y);
+        maxi.z = std::max(wPos.z, maxi.z);
+        mini.x = std::min(wPos.x, mini.x);
+        mini.y = std::min(wPos.y, mini.y);
+        mini.z = std::min(wPos.z, mini.z);
+    }
+    collision["BoxCenter"] = 0.5f * (maxi + mini);
+    collision["BoxSize"] = maxi - mini;
+    return true;
+}
+
+bool GetEntityBox(World* world, ComponentWrapper& AABBComponent, AABB& outBox)
+{
+    ComponentWrapper& cTrans = world->GetComponent(AABBComponent.EntityID, "Transform");
+    ComponentWrapper model = world->GetComponent(AABBComponent.EntityID, "Model");
+    Model* modelRes = ResourceManager::Load<Model>(model["Resource"]);
+    outBox.CreateFromCenter(AABBComponent["BoxCenter"], AABBComponent["BoxSize"]);
+    glm::vec3 mini = outBox.MinCorner();
+    glm::vec3 maxi = outBox.MaxCorner();
+
+    glm::mat4 modelMatrix = modelRes->m_Matrix *
+        glm::translate(glm::mat4(), (glm::vec3)cTrans["Position"]) *
+        glm::scale((glm::vec3)cTrans["Scale"]);
+
+    outBox = AABB(modelMatrix * glm::vec4(mini.x, mini.y, mini.z, 1),
+        modelMatrix * glm::vec4(maxi.x, maxi.y, maxi.z, 1));
+    return true;
+}
+
+bool GetEntityBox(World* world, EntityID entity, AABB& outBox, bool forceBoxFromModel)
+{
+    if (!world->HasComponent(entity, "AABB")) {
+        if (forceBoxFromModel) {
+            if (!attachAABBComponentFromModel(world, entity))
+                return false;
+        } else {
+            return false;
+        }
+    }
+
+    ComponentWrapper& cBox = world->GetComponent(entity, "AABB");
+    return GetEntityBox(world, cBox, outBox);
+}
+
+}

src/Engine/Collision/CollisionSystem.cpp

@@ -0,0 +1,42 @@
+#include "Collision/Collision.h"
+#include "Collision/CollisionSystem.h"
+#include "Core/AABB.h"
+
+void CollisionSystem::UpdateComponent(World * world, ComponentWrapper & cAABB, double dt)
+{
+    //TODO: Update CollisionSystem system after PlayerSystem.
+
+    //Right now, cAABB is a component attached to any entity that should be collideable.
+    AABB thisBox;
+    if (!Collision::GetEntityBox(world, cAABB, thisBox)) {
+        return;
+    }
+    //Press 'Z' to enable/disable collision.
+    if (zPress) {
+        return;
+    }
+    //Here, mover should be an object that moves, currently only players.
+    for (auto& mover : *world->GetComponents("Player")) {
+        if (cAABB.EntityID == mover.EntityID) {
+            continue;
+        }
+        AABB otherBox;
+        if (!Collision::GetEntityBox(world, mover.EntityID, otherBox)) {
+            continue;
+        }
+        glm::vec3 resolveTranslation;
+        if (Collision::AABBVsAABB(otherBox, thisBox, resolveTranslation)) {
+            ComponentWrapper& trans = world->GetComponent(mover.EntityID, "Transform");
+            //TODO: Special treatment if both are movers.
+            trans["Position"] = (glm::vec3)trans["Position"] + resolveTranslation;
+        }
+    }
+}
+
+bool CollisionSystem::OnKeyUp(const Events::KeyUp & event)
+{
+    if (event.KeyCode == GLFW_KEY_Z) {
+        zPress = !zPress;
+    }
+    return false;
+}

src/Engine/Collision/TriggerSystem.cpp

@@ -0,0 +1,81 @@
+#include "Collision/TriggerSystem.h"
+#include "Collision/Collision.h"
+#include "Core/AABB.h"
+#include "Rendering/Model.h"
+
+void TriggerSystem::UpdateComponent(World* world, ComponentWrapper& trigger, double dt)
+{
+    //Currently only players can trigger things.
+    auto players = world->GetComponents("Player");
+    if (players == nullptr) {
+        return;
+    }
+    EntityID tId = trigger.EntityID;
+    AABB triggerBox;
+    //The trigger *should* have a bounding box, or something, to test against so it can be triggered.
+    if (!Collision::GetEntityBox(world, tId, triggerBox, true)) {
+        return;
+    }
+    for (auto& pc : *players) {
+        EntityID pId = pc.EntityID;
+        AABB playerBox;
+        //The player can't trigger anything without an AABB.
+        if (!Collision::GetEntityBox(world, pId, playerBox, true)) {
+            continue;
+        }
+        if (!Collision::AABBVsAABB(triggerBox, playerBox)) {
+            //Entity is not touching the trigger,
+            //Throw event if it was previously.
+            if (throwLeaveIfWasInTrigger(m_EntitiesTouchingTrigger[tId], pId, tId)) {
+                continue;
+            }
+            //This only occurs if the entity was completely inside the trigger one frame, 
+            //then completely outside the trigger, e.g. when dying and respawning.
+            throwLeaveIfWasInTrigger(m_EntitiesCompletelyInTrigger[tId], pId, tId);
+        } else {
+            //Entity is at least touching the trigger.
+            AABB completelyInsideBox;
+            completelyInsideBox.CreateFromCenter(triggerBox.Center(), triggerBox.Size() - 2.0f * playerBox.Size());
+            if (Collision::AABBVsAABB(completelyInsideBox, playerBox) &&
+                glm::all(glm::greaterThan(triggerBox.Size(), playerBox.Size()))) {
+                //Entity is completely inside the trigger.
+                //If it was only touching before, it is erased.
+                m_EntitiesTouchingTrigger[tId].erase(pId);
+                std::unordered_set<EntityID>& completeSet = m_EntitiesCompletelyInTrigger[tId];
+                if (completeSet.count(pId) == 0) {
+                    //If it wasn't completely in the trigger, throw Enter and add to the set.
+                    completeSet.insert(pId);
+                    publish<Events::TriggerEnter>(pId, tId);
+                }
+            } else {
+                //Entity is only touching the trigger.
+                std::unordered_set<EntityID>& touchSet = m_EntitiesTouchingTrigger[tId];
+                std::unordered_set<EntityID>& completeSet = m_EntitiesCompletelyInTrigger[tId];
+                const auto& it = completeSet.find(pId);
+                //If it was completely inside before.
+                if (it != completeSet.end()) {
+                    completeSet.erase(it);
+                    touchSet.insert(pId);
+                    //If it was completely outside before.
+                } else if (touchSet.count(pId) == 0) {
+                    publish<Events::TriggerTouch>(pId, tId);
+                    touchSet.insert(pId);
+                }
+                //Else, it was touching the trigger last frame too and nothing is done.
+            }
+        }
+    }
+}
+
+bool TriggerSystem::throwLeaveIfWasInTrigger(std::unordered_set<EntityID>& triggerSet, EntityID pId, EntityID tId)
+{
+    const auto& it = triggerSet.find(pId);
+    if (it != triggerSet.end()) {
+        //If it was in the trigger, but not anymore, throw leaveEvent and erase from the set.
+        triggerSet.erase(it);
+        publish<Events::TriggerLeave>(pId, tId);
+        return true;
+    }
+    return false;
+}
+

src/Engine/Core/AABB.cpp

@@ -0,0 +1,34 @@
+#include "Core/AABB.h"
+#include "Common.h"
+
+AABB::AABB(const glm::vec3& minPos, const glm::vec3& maxPos)
+    : m_MinCorner(minPos)
+    , m_MaxCorner(maxPos)
+    , m_Center(0.5f * (maxPos + minPos))
+    , m_HalfSize(0.5f * (maxPos - minPos))
+{
+    DEBUG_IF(glm::any(glm::lessThan(m_MaxCorner, m_MinCorner))) {
+        LOG_WARNING("AABB maxCorner coordinates are not greater than minCorner");
+        m_MaxCorner.x = glm::max(m_MaxCorner.x, m_MinCorner.x);
+        m_MinCorner.x = glm::min(m_MaxCorner.x, m_MinCorner.x);
+        m_MaxCorner.y = glm::max(m_MaxCorner.y, m_MinCorner.y);
+        m_MinCorner.y = glm::min(m_MaxCorner.y, m_MinCorner.y);
+        m_MaxCorner.z = glm::max(m_MaxCorner.z, m_MinCorner.z);
+        m_MinCorner.z = glm::min(m_MaxCorner.z, m_MinCorner.z);
+    }
+}
+
+AABB::AABB(const glm::vec4& minPos, const glm::vec4& maxPos)
+    : AABB(glm::vec3(minPos), glm::vec3(maxPos))
+{}
+
+void AABB::CreateFromCenter(const glm::vec3& center, const glm::vec3& size)
+{
+    m_Center = center;
+    m_HalfSize = 0.5f * size;
+    m_MinCorner = m_Center - m_HalfSize;
+    m_MaxCorner = m_Center + m_HalfSize;
+}
+
+AABB::~AABB()
+{}

src/Engine/Core/ComponentPool.cpp

@@ -19,7 +19,7 @@ bool ComponentPoolForwardIterator::operator!=(const ComponentPoolForwardIterator
     return m_MemoryPoolIterator != other.m_MemoryPoolIterator;
 }
 
-ComponentPoolForwardIterator& ComponentPoolForwardIterator::operator++(int)
+ComponentPoolForwardIterator ComponentPoolForwardIterator::operator++(int)
 {
     ComponentPoolForwardIterator copyIter(*this);
     operator++();

src/Engine/Core/InputManager.cpp

@@ -2,6 +2,7 @@
 
 std::vector<unsigned int> InputManager::GLFWCharCallbackQueue;
 std::vector<std::pair<double, double>> InputManager::GLFWScrollCallbackQueue;
+std::vector<std::string> InputManager::GLFWDropCallbackQueue;
 
 void InputManager::Initialize()
 {
@@ -10,6 +11,7 @@ void InputManager::Initialize()
 	//m_LastGamepadButtonState = std::array<GamepadButtonState, XUSER_MAX_COUNT>();
     glfwSetCharCallback(m_GLFWWindow, &InputManager::GLFWCharCallback);
     glfwSetScrollCallback(m_GLFWWindow, &InputManager::GLFWScrollCallback);
+    glfwSetDropCallback(m_GLFWWindow, &InputManager::GLFWDropCallback);
 
 	EVENT_SUBSCRIBE_MEMBER(m_ELockMouse, &InputManager::OnLockMouse);
 	EVENT_SUBSCRIBE_MEMBER(m_EUnlockMouse, &InputManager::OnUnlockMouse);
@@ -95,6 +97,14 @@ void InputManager::Update(double dt)
     }
     GLFWScrollCallbackQueue.clear();
 
+    // File drop
+    for (auto& path : GLFWDropCallbackQueue) {
+        Events::FileDropped e;
+        e.Path = path;
+        m_EventBroker->Publish(e);
+    }
+    GLFWDropCallbackQueue.clear();
+
 	// // Lock mouse while holding LMB
 	// if (m_CurrentMouseState[GLFW_MOUSE_BUTTON_LEFT])
 	// {
@@ -229,6 +239,14 @@ void InputManager::GLFWScrollCallback(GLFWwindow* window, double xoffset, double
     GLFWScrollCallbackQueue.push_back(std::make_pair(xoffset, yoffset));
 }
 
+
+void InputManager::GLFWDropCallback(GLFWwindow* window, int count, const char* paths[])
+{
+    for (int i = 0; i < count; i++) {
+        GLFWDropCallbackQueue.push_back(std::string(paths[i]));
+    }
+}
+
 bool InputManager::OnLockMouse(const Events::LockMouse &event)
 {
 	m_MouseLocked = true;

src/Engine/Core/OctTree.cpp

@@ -0,0 +1,377 @@
+#include <vector>
+#include <algorithm>
+#include <bitset>
+
+#include "Core/OctTree.h"
+#include "Collision/Collision.h"
+
+namespace
+{
+//To be able to sort nodes based on distance to ray origin.
+struct ChildInfo
+{
+    int Index;
+    float Distance;
+};
+
+bool isFirstLower(const ChildInfo& first, const ChildInfo& second)
+{
+    return first.Distance < second.Distance;
+}
+
+}
+
+OctTree::OctTree()
+    : OctTree(AABB(), 0)
+{}
+
+OctTree::OctTree(const AABB& octTreeBounds, int subDivisions)
+    : m_Root(new OctChild(octTreeBounds, subDivisions, m_StaticObjects, m_DynamicObjects))
+    , m_UpdatedOnce(false)
+{}
+
+OctTree::~OctTree()
+{
+    delete m_Root;
+}
+
+void OctTree::AddDynamicObject(const AABB& box)
+{
+    m_Root->AddDynamicObject(box);
+    m_DynamicObjects.push_back(box);
+}
+
+void OctTree::AddStaticObject(const AABB& box)
+{
+    m_Root->AddStaticObject(box);
+    m_StaticObjects.push_back(box);
+}
+
+void OctTree::BoxesInSameRegion(const AABB& box, std::vector<AABB>& outBoxes)
+{
+    falsifyObjectChecks();
+    m_Root->BoxesInSameRegion(box, outBoxes);
+}
+
+void OctTree::ClearObjects()
+{
+    m_StaticObjects.clear();
+    m_DynamicObjects.clear();
+    m_Root->ClearObjects();
+}
+
+void OctTree::ClearDynamicObjects()
+{
+    m_DynamicObjects.clear();
+    m_Root->ClearDynamicObjects();
+}
+
+bool OctTree::RayCollides(const Ray& ray, Output& data)
+{
+    falsifyObjectChecks();
+    data.CollideDistance = -1;
+    return m_Root->RayCollides(ray, data);
+}
+
+bool OctTree::BoxCollides(const AABB& boxToTest, AABB& outBoxIntersected)
+{
+    falsifyObjectChecks();
+    return m_Root->BoxCollides(boxToTest, outBoxIntersected);
+}
+
+void OctTree::falsifyObjectChecks()
+{
+    for (auto& obj : m_StaticObjects) {
+        obj.Checked = false;
+    }
+    for (auto& obj : m_DynamicObjects) {
+        obj.Checked = false;
+    }
+}
+
+OctTree::OctChild::OctChild(const AABB& octTreeBounds,
+    int subDivisions, 
+    std::vector<ContainedObject>& staticObjects,
+    std::vector<ContainedObject>& dynamicObjects)
+    : m_Box(octTreeBounds)
+    , m_StaticObjectsRef(staticObjects)
+    , m_DynamicObjectsRef(dynamicObjects)
+{
+    if (subDivisions == 0) {
+        for (OctChild*& c : m_Children) {
+            c = nullptr;
+        }
+    } else {
+        --subDivisions;
+        for (int i = 0; i < 8; ++i) {
+            glm::vec3 minPos, maxPos;
+            const glm::vec3& parentMin = m_Box.MinCorner();
+            const glm::vec3& parentMax = m_Box.MaxCorner();
+            const glm::vec3& parentCenter = m_Box.Center();
+            std::bitset<3> bits(i);
+            //If child is 4,5,6,7.
+            if (bits.test(2)) {
+                minPos.x = parentCenter.x;
+                maxPos.x = parentMax.x;
+            } else {
+                minPos.x = parentMin.x;
+                maxPos.x = parentCenter.x;
+            }
+
+            //If child is 2,3,6,7
+            if (bits.test(1)) {
+                minPos.y = parentCenter.y;
+                maxPos.y = parentMax.y;
+            } else {
+                minPos.y = parentMin.y;
+                maxPos.y = parentCenter.y;
+            }
+            //If child is 1,3,5,7
+            if (bits.test(0)) {
+                minPos.z = parentCenter.z;
+                maxPos.z = parentMax.z;
+            } else {
+                minPos.z = parentMin.z;
+                maxPos.z = parentCenter.z;
+            }
+            m_Children[i] = new OctChild(AABB(minPos, maxPos), subDivisions, m_StaticObjectsRef, m_DynamicObjectsRef);
+        }
+    }
+}
+
+OctTree::OctChild::~OctChild()
+{
+    for (OctChild*& c : m_Children) {
+        if (c != nullptr) {
+            delete c;
+            c = nullptr;
+        }
+    }
+}
+
+bool OctTree::OctChild::BoxCollides(const AABB& boxToTest, AABB& outBoxIntersected) const
+{
+    if (hasChildren()) {
+        for (int i : childIndicesContainingBox(boxToTest)) {
+            if (m_Children[i]->BoxCollides(boxToTest, outBoxIntersected))
+                return true;
+        }
+    } else {
+        for (int i : m_StaticObjIndices) {
+            if (!m_StaticObjectsRef[i].Checked) {
+                const AABB& objBox = m_StaticObjectsRef[i].Box;
+                if (Collision::AABBVsAABB(boxToTest, objBox)) {
+                    outBoxIntersected = objBox;
+                    return true;
+                }
+                m_StaticObjectsRef[i].Checked = true;
+            }
+        }
+        for (int i : m_DynamicObjIndices) {
+            if (!m_DynamicObjectsRef[i].Checked) {
+                const AABB& objBox = m_DynamicObjectsRef[i].Box;
+                if (!Collision::IsSameBoxProbably(boxToTest, objBox) &&
+                    Collision::AABBVsAABB(boxToTest, objBox)) {
+                    outBoxIntersected = objBox;
+                    return true;
+                }
+                m_DynamicObjectsRef[i].Checked = true;
+            }
+        }
+    }
+    return false;
+}
+
+bool OctTree::OctChild::RayCollides(const Ray& ray, Output& data) const
+{
+    //If the node AABB is missed, everything it contains is missed.
+    if (Collision::RayAABBIntr(ray, m_Box)) {
+        //If the ray shoots the tree, and it is a parent to 8 children :o
+        if (hasChildren()) {
+            //Sort children according to their distance from the ray origin.
+            std::vector<ChildInfo> childInfos;
+            childInfos.reserve(8);
+            for (int i = 0; i < 8; ++i) {
+                childInfos.push_back({ i, glm::distance(ray.Origin(), m_Children[i]->m_Box.Center()) });
+            }
+            std::sort(childInfos.begin(), childInfos.end(), isFirstLower);
+            //Loop through the children, starting with the one closest to the ray origin. I.e the first to be hit.
+            for (const ChildInfo& info : childInfos) {
+                if (m_Children[info.Index]->RayCollides(ray, data)) {
+                    return true;
+                }
+            }
+        } else {
+            //Check against boxes in the node.
+            float minDist = INFINITY;
+            bool intersected = false;
+            for (int i : m_StaticObjIndices) {
+                float dist;
+                //If we haven't tested against this object before, and the ray hits.
+                if (!m_StaticObjectsRef[i].Checked &&
+                    Collision::RayVsAABB(ray, m_StaticObjectsRef[i].Box, dist)) {
+                    minDist = std::min(dist, minDist);
+                    intersected = true;
+                }
+                m_StaticObjectsRef[i].Checked = true;
+            }
+            for (int i : m_DynamicObjIndices) {
+                float dist;
+                //If we haven't tested against this object before, and the ray hits.
+                if (!m_DynamicObjectsRef[i].Checked &&
+                    Collision::RayVsAABB(ray, m_DynamicObjectsRef[i].Box, dist)) {
+                    minDist = std::min(dist, minDist);
+                    intersected = true;
+                }
+                m_DynamicObjectsRef[i].Checked = true;
+            }
+
+            data.CollideDistance = minDist;
+            return intersected;
+        }
+    }
+    return false;
+}
+
+
+void OctTree::OctChild::AddDynamicObject(const AABB& box)
+{
+    if (hasChildren()) {
+        for (auto i : childIndicesContainingBox(box)) {
+            m_Children[i]->AddDynamicObject(box);
+        }
+    } else {
+        //Since it hasn't been added yet to the real object list, the index is after the last =size.
+        m_DynamicObjIndices.push_back((int)m_DynamicObjectsRef.size());
+    }
+}
+
+void OctTree::OctChild::AddStaticObject(const AABB& box)
+{
+    if (hasChildren()) {
+        for (auto i : childIndicesContainingBox(box)) {
+            m_Children[i]->AddStaticObject(box);
+        }
+    } else {
+        //Since it hasn't been added yet to the real object list, the index is after the last =size.
+        m_StaticObjIndices.push_back((int)m_StaticObjectsRef.size());
+    }
+}
+
+void OctTree::OctChild::BoxesInSameRegion(const AABB& box, std::vector<AABB>& outBoxes) const
+{
+    if (hasChildren()) {
+        for (auto i : childIndicesContainingBox(box)) {
+            m_Children[i]->BoxesInSameRegion(box, outBoxes);
+        }
+    } else {
+        size_t startIndex = outBoxes.size();
+        int numDuplicates = 0;
+        outBoxes.resize(outBoxes.size() + m_StaticObjIndices.size() + m_DynamicObjIndices.size());
+        for (size_t i = 0; i < m_StaticObjIndices.size(); ++i){
+            ContainedObject& obj = m_StaticObjectsRef[m_StaticObjIndices[i]];
+            if (obj.Checked) {
+                ++numDuplicates;
+            } else {
+                obj.Checked = true;
+                outBoxes[startIndex + i - numDuplicates] = obj.Box;
+            }
+        }
+        for (size_t i = 0; i < m_DynamicObjIndices.size(); ++i) {
+            ContainedObject& obj = m_DynamicObjectsRef[m_DynamicObjIndices[i]];
+            if (obj.Checked) {
+                ++numDuplicates;
+            } else {
+                obj.Checked = true;
+                outBoxes[startIndex + i - numDuplicates] = obj.Box;
+            }
+        }
+        for (size_t i = 0; i < numDuplicates; ++i) {
+            outBoxes.pop_back();
+        }
+    }
+}
+
+void OctTree::OctChild::ClearObjects()
+{
+    if (hasChildren()) {
+        for (OctChild*& c : m_Children) {
+            c->ClearObjects();
+        }
+    } else {
+        m_DynamicObjIndices.clear();
+        m_StaticObjIndices.clear();
+    }
+}
+
+void OctTree::OctChild::ClearDynamicObjects()
+{
+    if (hasChildren()) {
+        for (OctChild*& c : m_Children) {
+            c->ClearObjects();
+        }
+    } else {
+        m_DynamicObjIndices.clear();
+    }
+}
+
+//:     3        7 
+//:
+//:        2         6 
+//:                           |
+//:     1        5          \ y
+//:                          z 
+//:        0         4        0  x-->
+//
+// child: 0 1 2 3 4 5 6 7
+//    x : - - - - + + + +
+//    y : - - + + - - + +
+//    z : - + - + - + - +
+int OctTree::OctChild::childIndexContainingPoint(const glm::vec3& point) const
+{
+    const glm::vec3& c = m_Box.Center();
+    return (1 << 2) * (point.x >= c.x) | (1 << 1) * (point.y >= c.y) | (point.z >= c.z);
+}
+
+std::vector<int> OctTree::OctChild::childIndicesContainingBox(const AABB& box) const
+{
+    int minInd = childIndexContainingPoint(box.MinCorner());
+    int maxInd = childIndexContainingPoint(box.MaxCorner());
+    //Because of the predictable ordering of the child indices, 
+    //the number of bits set when xor:ing the indices will determine the number of children containing the box.
+    std::bitset<3> bits(minInd ^ maxInd);
+    switch (bits.count()) {
+        //Box contained completely in one child.
+    case 0:
+        return{ minInd };
+        //Two children.
+    case 1:
+        return{ minInd, maxInd };
+        //Four children.
+    case 2:
+    {
+        std::vector<int> ret;
+        //Bit-hax to calculate the correct 4 children containing the box.
+        //This works because of the childrens index determine what part of 
+        //the dimensions they are responsible for (which octant).
+        bits.flip();
+        //At this point the bits necessarily have exactly one bit set.
+        for (int c = 0; c < 8; ++c) {
+            //If the child index have the same bit set as the bits, add box to it.
+            if (bits.to_ulong() & c) {
+                ret.push_back(c);
+            }
+        }
+        return ret;
+    }
+    case 3:                         //Eight children.
+        return{ 0,1,2,3,4,5,6,7 };
+    default:
+        return std::vector<int>();
+    }
+}
+
+inline bool OctTree::OctChild::hasChildren() const
+{
+    return m_Children[0] != nullptr;
+}

src/Engine/Editor/EditorSystem.cpp

@@ -19,6 +19,7 @@ EditorSystem::EditorSystem(EventBroker* eventBroker, IRenderer* renderer)
     EVENT_SUBSCRIBE_MEMBER(m_EMouseRelease, &EditorSystem::OnMouseRelease);
     EVENT_SUBSCRIBE_MEMBER(m_EMouseMove, &EditorSystem::OnMouseMove);
     EVENT_SUBSCRIBE_MEMBER(m_EPicking, &EditorSystem::OnPicking);
+    EVENT_SUBSCRIBE_MEMBER(m_EFileDropped, &EditorSystem::OnFileDropped);
 }
 
 void EditorSystem::Update(World* world, double dt)
@@ -36,6 +37,11 @@ void EditorSystem::Update(World* world, double dt)
     updateWidget();
 
     drawUI(world, dt);
+
+    // Clear drop queue if it wasn't handled by any UI element
+    if (!m_LastDroppedFile.empty()) {
+        m_LastDroppedFile = "";
+    }
 }
 
 bool EditorSystem::OnInputCommand(const Events::InputCommand& e)
@@ -79,6 +85,9 @@ bool EditorSystem::OnMouseMove(const Events::MouseMove& e)
         return false;
     }
 
+    if (m_Selection == 0) {
+        return false;
+    }
     auto widgetTransform = m_World->GetComponent(m_Widget, "Transform");
     glm::vec3 widgetOrientation = widgetTransform["Orientation"];
 
@@ -147,6 +156,13 @@ bool EditorSystem::OnMouseMove(const Events::MouseMove& e)
             glm::vec3& scaleX = m_World->GetComponent(m_WidgetX, "Transform")["Scale"];
             glm::vec3& scaleY = m_World->GetComponent(m_WidgetY, "Transform")["Scale"];
             glm::vec3& scaleZ = m_World->GetComponent(m_WidgetZ, "Transform")["Scale"];
+
+            if (m_WidgetCurrentAxis.x > 0 && m_WidgetCurrentAxis.y > 0 && m_WidgetCurrentAxis.z > 0) {
+                float movementLength = glm::length(movement);
+                float dot = glm::dot((glm::vec3)widgetOrientation, movement);
+                movement = glm::vec3(movementLength) * glm::sign(dot);
+                (glm::vec3&)m_World->GetComponent(m_WidgetOrigin, "Transform")["Scale"] += movement;
+            }
             if (m_WidgetCurrentAxis.x > 0) {
                 scaleX.x += movement.x;
             }
@@ -156,14 +172,19 @@ bool EditorSystem::OnMouseMove(const Events::MouseMove& e)
             if (m_WidgetCurrentAxis.z > 0) {
                 scaleZ.z += movement.z;
             }
-            if (m_WidgetCurrentAxis.x > 0 && m_WidgetCurrentAxis.y > 0 && m_WidgetCurrentAxis.z > 0) {
-                float max = glm::max(scaleX.x, glm::max(scaleY.y, scaleZ.z));
-                (glm::vec3&)m_World->GetComponent(m_WidgetOrigin, "Transform")["Scale"] = glm::vec3(max);
-            }
             (glm::vec3&)m_World->GetComponent(m_Selection, "Transform")["Scale"] += movement;
         }
     }
 
+
+    /*LOG_DEBUG("DELTA %f", e.DeltaX);
+    if (e.X < 0) {
+        glfwSetCursorPos(m_Renderer->Window(), width - 1, e.Y);
+    }
+    if (e.X >= width) {
+        glfwSetCursorPos(m_Renderer->Window(), 0, e.Y);
+    }*/
+
     return true;
 }
 
@@ -189,9 +210,9 @@ bool EditorSystem::OnPicking(const Events::Picking& e)
                 EntityID parent = m_World->GetParent(entity);
                 if (parent == m_Widget) {
                     m_WidgetCurrentAxis = glm::vec3(
-                        (entity == m_WidgetX) || (entity == m_WidgetOrigin),
-                        (entity == m_WidgetY) || (entity == m_WidgetOrigin),
-                        (entity == m_WidgetZ) || (entity == m_WidgetOrigin)
+                        (entity == m_WidgetX) || (entity == m_WidgetOrigin) || (entity == m_WidgetPlaneY || entity == m_WidgetPlaneZ),
+                        (entity == m_WidgetY) || (entity == m_WidgetOrigin) || (entity == m_WidgetPlaneX || entity == m_WidgetPlaneZ),
+                        (entity == m_WidgetZ) || (entity == m_WidgetOrigin) || (entity == m_WidgetPlaneX || entity == m_WidgetPlaneY)
                     );
                     m_WidgetPickingDepth = result.Depth;
 
@@ -212,6 +233,12 @@ bool EditorSystem::OnPicking(const Events::Picking& e)
     return true;
 };
 
+bool EditorSystem::OnFileDropped(const Events::FileDropped& e)
+{
+    m_LastDroppedFile = boost::filesystem::path(e.Path).lexically_relative(boost::filesystem::current_path()).string();
+    std::replace(m_LastDroppedFile.begin(), m_LastDroppedFile.end(), '\\', '/');
+    return true;
+}
 
 void EditorSystem::updateWidget()
 {
@@ -221,12 +248,24 @@ void EditorSystem::updateWidget()
         m_WidgetX = m_World->CreateEntity(m_Widget);
         m_World->AttachComponent(m_WidgetX, "Transform");
         m_World->AttachComponent(m_WidgetX, "Model");
+        m_WidgetPlaneX = m_World->CreateEntity(m_Widget);
+        m_World->AttachComponent(m_WidgetPlaneX, "Transform");
+        m_World->AttachComponent(m_WidgetPlaneX, "Model");
+        m_World->GetComponent(m_WidgetPlaneX, "Model")["Resource"] = "Models/WidgetPlaneX.obj";
         m_WidgetY = m_World->CreateEntity(m_Widget);
         m_World->AttachComponent(m_WidgetY, "Transform");
         m_World->AttachComponent(m_WidgetY, "Model");
+        m_WidgetPlaneY = m_World->CreateEntity(m_Widget);
+        m_World->AttachComponent(m_WidgetPlaneY, "Transform");
+        m_World->AttachComponent(m_WidgetPlaneY, "Model");
+        m_World->GetComponent(m_WidgetPlaneY, "Model")["Resource"] = "Models/WidgetPlaneY.obj";
         m_WidgetZ = m_World->CreateEntity(m_Widget);
         m_World->AttachComponent(m_WidgetZ, "Transform");
         m_World->AttachComponent(m_WidgetZ, "Model");
+        m_WidgetPlaneZ = m_World->CreateEntity(m_Widget);
+        m_World->AttachComponent(m_WidgetPlaneZ, "Transform");
+        m_World->AttachComponent(m_WidgetPlaneZ, "Model");
+        m_World->GetComponent(m_WidgetPlaneZ, "Model")["Resource"] = "Models/WidgetPlaneZ.obj";
         m_WidgetOrigin = m_World->CreateEntity(m_Widget);
         m_World->AttachComponent(m_WidgetOrigin, "Transform");
         m_World->AttachComponent(m_WidgetOrigin, "Model");
@@ -252,15 +291,24 @@ void EditorSystem::setWidgetMode(WidgetMode newMode)
     auto widgetTransform = m_World->GetComponent(m_Widget, "Transform");
     widgetTransform["Orientation"] = glm::vec3(0.f);
     m_World->GetComponent(m_WidgetX, "Transform")["Scale"] = glm::vec3(1.f);
+    m_World->GetComponent(m_WidgetPlaneX, "Model")["Visible"] = false;
     m_World->GetComponent(m_WidgetY, "Transform")["Scale"] = glm::vec3(1.f);
+    m_World->GetComponent(m_WidgetPlaneY, "Model")["Visible"] = false;
     m_World->GetComponent(m_WidgetZ, "Transform")["Scale"] = glm::vec3(1.f);
+    m_World->GetComponent(m_WidgetPlaneZ, "Model")["Visible"] = false;
     m_World->GetComponent(m_WidgetOrigin, "Transform")["Scale"] = glm::vec3(1.f);
+    m_World->GetComponent(m_WidgetOrigin, "Model")["Visible"] = false;
 
     if (newMode == WidgetMode::Translate) {
         m_World->GetComponent(m_WidgetX, "Model")["Resource"] = "Models/TranslationWidgetX.obj";
         m_World->GetComponent(m_WidgetY, "Model")["Resource"] = "Models/TranslationWidgetY.obj";
         m_World->GetComponent(m_WidgetZ, "Model")["Resource"] = "Models/TranslationWidgetZ.obj";
-        m_World->GetComponent(m_WidgetOrigin, "Model")["Visible"] = false;
+        // Temporarily disabled for local space until I can figure out what's wrong with the math 
+        if (m_WidgetSpace != WidgetSpace::Local) {
+            m_World->GetComponent(m_WidgetPlaneX, "Model")["Visible"] = true;
+            m_World->GetComponent(m_WidgetPlaneY, "Model")["Visible"] = true;
+            m_World->GetComponent(m_WidgetPlaneZ, "Model")["Visible"] = true;
+        }
         if (m_Selection != 0) {
             if (m_WidgetSpace == WidgetSpace::Local) {
                 auto selectionTransform = m_World->GetComponent(m_Selection, "Transform");
@@ -275,13 +323,12 @@ void EditorSystem::setWidgetMode(WidgetMode newMode)
         m_World->GetComponent(m_WidgetOrigin, "Model")["Resource"] = "Models/ScaleWidgetOrigin.obj";
         if (m_Selection != 0) {
             auto selectionTransform = m_World->GetComponent(m_Selection, "Transform");
-            widgetTransform["Orientation"] = (glm::vec3)selectionTransform["Orientation"];
+            widgetTransform["Orientation"] = glm::eulerAngles(RenderQueueFactory::AbsoluteOrientation(m_World, m_Selection));
         }
     } else if (newMode == WidgetMode::Rotate) {
         m_World->GetComponent(m_WidgetX, "Model")["Resource"] = "Models/RotationWidgetX.obj";
         m_World->GetComponent(m_WidgetY, "Model")["Resource"] = "Models/RotationWidgetY.obj";
         m_World->GetComponent(m_WidgetZ, "Model")["Resource"] = "Models/RotationWidgetZ.obj";
-        m_World->GetComponent(m_WidgetOrigin, "Model")["Visible"] = false;
         if (m_Selection != 0) {
             auto selectionTransform = m_World->GetComponent(m_Selection, "Transform");
             if (m_WidgetSpace == WidgetSpace::Local) {
@@ -389,37 +436,53 @@ void EditorSystem::drawUI(World* world, double dt)
                         const std::string& field = pair.first;
                         const std::string& type = pair.second;
                         
+                        ImGui::PushID(field.c_str());
                         if (type == "Vector") {
                             auto& val = component.Property<glm::vec3>(field);
                             if (field == "Scale") {
-                                ImGui::DragFloat3(field.c_str(), glm::value_ptr(val), 0.1f, 0.f, std::numeric_limits<float>::max());
+                                ImGui::DragFloat3("", glm::value_ptr(val), 0.1f, 0.f, std::numeric_limits<float>::max());
                             } else if (field == "Orientation") {
                                 glm::vec3 tempVal = glm::fmod(val, glm::vec3(glm::two_pi<float>()));
-                                if (ImGui::SliderFloat3(field.c_str(), glm::value_ptr(tempVal), 0.f, glm::two_pi<float>())) {
+                                if (ImGui::SliderFloat3("", glm::value_ptr(tempVal), 0.f, glm::two_pi<float>())) {
                                     val = tempVal;
                                 }
                             } else {
-                                ImGui::DragFloat3(field.c_str(), glm::value_ptr(val), 0.1f, std::numeric_limits<float>::lowest(), std::numeric_limits<float>::max());
+                                ImGui::DragFloat3("", glm::value_ptr(val), 0.1f, std::numeric_limits<float>::lowest(), std::numeric_limits<float>::max());
                             }
                         } else if (type == "Color") {
                             auto& val = component.Property<glm::vec4>(field);
-                            ImGui::ColorEdit4(field.c_str(), glm::value_ptr(val), true);
+                            ImGui::ColorEdit4("", glm::value_ptr(val), true);
                         } else if (type == "string") {
                             std::string& val = component.Property<std::string>(field);
                             char tempString[1024];
                             memcpy(tempString, val.c_str(), std::min(val.length() + 1, sizeof(tempString)));
-                            if (ImGui::InputText(field.c_str(), tempString, sizeof(tempString))) {
+                            if (ImGui::InputText("", tempString, sizeof(tempString))) {
                                 val = std::string(tempString);
                                 LOG_DEBUG("%s::%s changed!", componentType.c_str(), field.c_str());
                             }
+                            // DROP STUFF
+                            if (ImGui::IsItemHovered() && !m_LastDroppedFile.empty()) {
+                                val = m_LastDroppedFile;
+                                m_LastDroppedFile = "";
+                            }
+
                         } else if (type == "double") {
                             float tempVal = static_cast<float>(component.Property<double>(field));
-                            if (ImGui::InputFloat(field.c_str(), &tempVal, 0.01f, 1.f)) {
+                            if (ImGui::InputFloat("", &tempVal, 0.01f, 1.f)) {
                                 component.SetProperty(field, static_cast<double>(tempVal));
                             }
                         } else if (type == "bool") {
                             auto& val = component.Property<bool>(field);
-                            ImGui::Checkbox(field.c_str(), &val);
+                            ImGui::Checkbox("", &val);
+                        } else {
+                            ImGui::TextDisabled(type.c_str());
+                        }
+                        ImGui::PopID();
+
+                        ImGui::SameLine();
+                        ImGui::Text(field.c_str());
+                        if (ImGui::IsItemHovered()) {
+                            ImGui::SetTooltip("field annotation goes here");
                         }
                     }
                 }

src/Engine/Rendering/RawModel.cpp

@@ -76,13 +76,15 @@ RawModel::RawModel(std::string fileName)
 			}
 
 			// Material diffuse color
-			aiColor4D diffuse;
+			aiColor3D diffuse;
 			material->Get(AI_MATKEY_COLOR_DIFFUSE, diffuse);
-			desc.DiffuseVertexColor = glm::vec4(diffuse.r, diffuse.g, diffuse.b, diffuse.a);
+            float opacity;
+            material->Get(AI_MATKEY_OPACITY, opacity);
+			desc.DiffuseVertexColor = glm::vec4(diffuse.r, diffuse.g, diffuse.b, opacity);
 			// Material specular color
-			aiColor4D specular;
+			aiColor3D specular;
 			material->Get(AI_MATKEY_COLOR_SPECULAR, specular);
-			desc.SpecularVertexColor = glm::vec4(specular.r, specular.g, specular.b, specular.a);
+			desc.SpecularVertexColor = glm::vec4(specular.r, specular.g, specular.b, 1.f);
 
 			m_Vertices.push_back(desc);
 		}