BVH Debug Working + Input Bug Fix

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+1	1412	1668366641558707792	CMakeFiles/Step_3.dir/src/graphics/graphics.cpp.o	ce988de97a5cb51d
+1	1963	1668366642110723778	CMakeFiles/Step_3.dir/src/engine/main.cpp.o	641dce3f86933e2e
+1963	2035	1668366642178725749	Step_3	f055ce2b85635598
+1	820	1668366663439341462	CMakeFiles/Step_3.dir/src/graphics/input.cpp.o	510001b0955ab019
+1	1408	1668366664027358491	CMakeFiles/Step_3.dir/src/graphics/graphics.cpp.o	ce988de97a5cb51d
+1	2072	1668366664691377723	CMakeFiles/Step_3.dir/src/engine/main.cpp.o	641dce3f86933e2e
+2072	2145	1668366664763379807	Step_3	f055ce2b85635598
+1	827	1668366742693637470	CMakeFiles/Step_3.dir/src/graphics/input.cpp.o	510001b0955ab019
+1	1424	1668366743293654856	CMakeFiles/Step_3.dir/src/graphics/graphics.cpp.o	ce988de97a5cb51d
+1	1979	1668366743849670968	CMakeFiles/Step_3.dir/src/engine/main.cpp.o	641dce3f86933e2e
+1979	2054	1668366743921673055	Step_3	f055ce2b85635598

Step 3/cmake-build-release/Testing/Temporary/LastTest.log

@@ -1,3 +1,3 @@
-Start testing: Nov 13 13:05 EST
+Start testing: Nov 13 14:12 EST
 ----------------------------------------------------------
-End testing: Nov 13 13:05 EST
+End testing: Nov 13 14:12 EST

Step 3/include/engine/math/bvh.h

@@ -8,15 +8,25 @@
 
 #include "engine/util/std.h"
 #include "engine/types.h"
+#include <config.h>
+#ifdef COMPILE_GUI
+    #include <graphics/gl/gl.h>
+#endif
 
 #include <utility>
-#include <cassert>
 
 // A currently pure header implementation of a BVH. TODO: make source file.
 // this is also for testing and might not make it into the step 2.
 
 namespace Raytracing {
     
+    #ifdef COMPILE_GUI
+        struct BVHDebugVAO {
+            VAO* vaoPtr;
+            Vec4 position;
+        };
+    #endif
+    
     struct BVHObject {
         Object* ptr = nullptr;
         AABB aabb;
@@ -43,6 +53,9 @@ namespace Raytracing {
     
     class BVHTree {
         private:
+            #ifdef COMPILE_GUI
+                std::vector<BVHDebugVAO> aabbVAOs;
+            #endif
             const int MAX_TREE_DEPTH = 50;
             BVHNode* root = nullptr;
             
@@ -52,7 +65,7 @@ namespace Raytracing {
                 for (const auto& obj: objs) {
                     // if this object doesn't have an AABB, we cannot use a BVH on it
                     // If this ever fails we have a problem with the implementation.
-                    assert(!obj.aabb.isEmpty());
+                    RTAssert(!obj.aabb.isEmpty());
                     if (obj.aabb.intersects(aabbs.first)) {
                         space.left.push_back(obj);
                     }
@@ -133,6 +146,20 @@ namespace Raytracing {
                         noAABBObjects.push_back(obj);
                         continue;
                     }
+    
+                    #ifdef COMPILE_GUI
+                        // create a VAO for debugging the AABB bounds.
+                        BVHDebugVAO vaoStorage {};
+                        auto aabbCenter = obj->getAABB().getCenter();
+                        auto aabbXRadius = obj->getAABB().getXRadius(aabbCenter);
+                        auto aabbYRadius = obj->getAABB().getYRadius(aabbCenter);
+                        auto aabbZRadius = obj->getAABB().getZRadius(aabbCenter);
+                        auto aabbVertexData = Shapes::cubeVertexBuilder::getCubeExtends(float(aabbXRadius), float(aabbYRadius), float(aabbZRadius));
+                        vaoStorage.vaoPtr = new VAO(aabbVertexData.cubeVerticesRaw, aabbVertexData.cubeUVs);
+                        vaoStorage.position = obj->getPosition();
+                        aabbVAOs.push_back(vaoStorage);
+                    #endif
+                    
                     BVHObject bvhObject;
                     // returns a copy of the AABB object and assigns it in to the tree storage object
                     bvhObject.aabb = obj->getAABB().translate(obj->getPosition());
@@ -147,8 +174,25 @@ namespace Raytracing {
                 return traverseFindRayIntersection(root, ray, min, max);
             }
         
+            #ifdef COMPILE_GUI
+                // renders all the debug VAOs on screen.
+                void render (Shader& worldShader){
+                    worldShader.use();
+                    worldShader.setInt("useWhite", 1);
+                    for (const auto& debugVAO : aabbVAOs){
+                        debugVAO.vaoPtr->bind();
+                        debugVAO.vaoPtr->draw(worldShader, {debugVAO.position});
+                    }
+                    worldShader.setInt("useWhite", 0);
+                }
+            #endif
+            
             ~BVHTree() {
                 delete (root);
+                #ifdef COMPILE_GUI
+                    for (const auto& debugVAORef : aabbVAOs)
+                        delete(debugVAORef.vaoPtr);
+                #endif
             }
     };
     

Step 3/include/engine/math/colliders.h

@@ -104,6 +104,16 @@ namespace Raytracing {
             [[nodiscard]] Vec4 getMin() const { return min; }
 
             [[nodiscard]] Vec4 getMax() const { return max; }
+            inline PRECISION_TYPE getXRadius(const Vec4& center){
+                return max.x() - center.x();
+            }
+            inline PRECISION_TYPE getYRadius(const Vec4& center){
+                return max.y() - center.y();
+            }
+            inline PRECISION_TYPE getZRadius(const Vec4& center){
+                return max.z() - center.z();
+            }
+            
 
     };
 

Step 3/include/engine/util/std.h

@@ -28,6 +28,8 @@
 #include <cstdlib>
 #include <memory>
 
+#define RTAssert(condition) static_cast <bool> (condition) ? void(0) : throw std::runtime_error("Assert Failed!");
+
 /**
  * defines
  */

Step 3/include/engine/world.h

@@ -11,6 +11,7 @@
 #include "engine/util/models.h"
 #include "engine/math/bvh.h"
 #include "types.h"
+#include "graphics/gl/shader.h"
 
 #include <utility>
 
@@ -125,6 +126,9 @@ namespace Raytracing {
             // Called by the raytracer class after all objects have been added to the world
             // this allows us to generate a statically unchanging BVH for easy rendering
             void generateBVH();
+            #ifdef COMPILE_GUI
+                void drawBVH(Shader& worldShader) {bvhObjects->render(worldShader);}
+            #endif
 
             inline void add(Object* object) { objects.push_back(object); }
 

Step 3/include/graphics/gl/gl.h

@@ -125,48 +125,51 @@ class Shapes {
             };
             static cubeVertexBuilder getCubeExtends(float xRadius, float yRadius, float zRadius) {
                 cubeVertexBuilder builder {};
+                // Can we use the transformation matrix? Yes.
+                // Are we going to? No.
+                // Why? No good reason. Perhaps a TODO:?
                 builder.cubeVerticesRaw = {
-                        -0.5f, -0.5f, -zRadius,
+                        -xRadius, -yRadius, -zRadius,
-                        0.5f, -0.5f, -zRadius,
+                        xRadius, -yRadius, -zRadius,
-                        0.5f,  0.5f, -zRadius,
+                        xRadius,  yRadius, -zRadius,
-                        0.5f,  0.5f, -zRadius,
+                        xRadius,  yRadius, -zRadius,
-                        -0.5f,  0.5f, -zRadius,
+                        -xRadius,  yRadius, -zRadius,
-                        -0.5f, -0.5f, -zRadius,
+                        -xRadius, -yRadius, -zRadius,
                         
-                        -0.5f, -0.5f,  zRadius,
+                        -xRadius, -yRadius,  zRadius,
-                        0.5f, -0.5f,  zRadius,
+                        xRadius, -yRadius,  zRadius,
-                        0.5f,  0.5f,  zRadius,
+                        xRadius,  yRadius,  zRadius,
-                        0.5f,  0.5f,  zRadius,
+                        xRadius,  yRadius,  zRadius,
-                        -0.5f,  0.5f,  zRadius,
+                        -xRadius,  yRadius,  zRadius,
-                        -0.5f, -0.5f,  zRadius,
+                        -xRadius, -yRadius,  zRadius,
                         
-                        -xRadius,  0.5f,  0.5f,
+                        -xRadius,  yRadius,  zRadius,
-                        -xRadius,  0.5f, -0.5f,
+                        -xRadius,  yRadius, -zRadius,
-                        -xRadius, -0.5f, -0.5f,
+                        -xRadius, -yRadius, -zRadius,
-                        -xRadius, -0.5f, -0.5f,
+                        -xRadius, -yRadius, -zRadius,
-                        -xRadius, -0.5f,  0.5f,
+                        -xRadius, -yRadius,  zRadius,
-                        -xRadius,  0.5f,  0.5f,
+                        -xRadius,  yRadius,  zRadius,
                         
-                        xRadius,  0.5f,  0.5f,
+                        xRadius,  yRadius,  zRadius,
-                        xRadius,  0.5f, -0.5f,
+                        xRadius,  yRadius, -zRadius,
-                        xRadius, -0.5f, -0.5f,
+                        xRadius, -yRadius, -zRadius,
-                        xRadius, -0.5f, -0.5f,
+                        xRadius, -yRadius, -zRadius,
-                        xRadius, -0.5f,  0.5f,
+                        xRadius, -yRadius,  zRadius,
-                        xRadius,  0.5f,  0.5f,
+                        xRadius,  yRadius,  zRadius,
                         
-                        -0.5f, -yRadius, -0.5f,
+                        -xRadius, -yRadius, -zRadius,
-                        0.5f, -yRadius, -0.5f,
+                        xRadius, -yRadius, -zRadius,
-                        0.5f, -yRadius,  0.5f,
+                        xRadius, -yRadius,  zRadius,
-                        0.5f, -yRadius,  0.5f,
+                        xRadius, -yRadius,  zRadius,
-                        -0.5f, -yRadius,  0.5f,
+                        -xRadius, -yRadius,  zRadius,
-                        -0.5f, -yRadius, -0.5f,
+                        -xRadius, -yRadius, -zRadius,
                         
-                        -0.5f,  yRadius, -0.5f,
+                        -xRadius,  yRadius, -zRadius,
-                        0.5f,  yRadius, -0.5f,
+                        xRadius,  yRadius, -zRadius,
-                        0.5f,  yRadius,  0.5f,
+                        xRadius,  yRadius,  zRadius,
-                        0.5f,  yRadius,  0.5f,
+                        xRadius,  yRadius,  zRadius,
-                        -0.5f,  yRadius,  0.5f,
+                        -xRadius,  yRadius,  zRadius,
-                        -0.5f,  yRadius, -0.5f,
+                        -xRadius,  yRadius, -zRadius,
                 };
                 return builder;
             }

Step 3/src/engine/main.cpp

@@ -132,11 +132,10 @@ int main(int argc, char** args) {
     world.add(new Raytracing::ModelObject({0, 0, -5}, house, world.getMaterial("blueDiffuse")));
     world.add(new Raytracing::ModelObject({0, 0, 5}, house, world.getMaterial("blueDiffuse")));
     
-    Raytracing::Raycaster raycaster {camera, image, world, parser};
-    
     if (parser.hasOption("--gui") || parser.hasOption("-g")) {
         #ifdef COMPILE_GUI
             XWindow window(1440, 720);
+            Raytracing::Raycaster raycaster {camera, image, world, parser};
             Texture mainImage(&image);
             auto spiderVAO = new VAO(spider.toTriangles());
             auto houseVAO = new VAO(house.toTriangles());
@@ -147,6 +146,9 @@ int main(int argc, char** args) {
             while (!window.shouldWindowClose()) {
                 window.beginUpdate();
                 renderer.draw();
+                glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+                world.drawBVH(worldShader);
+                glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
                 window.endUpdate();
             }
             *haltExecution = true;
@@ -158,6 +160,7 @@ int main(int argc, char** args) {
             flog << "Program not compiled with GUI support! Unable to continue!\n";
         #endif
     } else {
+        Raytracing::Raycaster raycaster {camera, image, world, parser};
         // run the raycaster the standard way
         ilog << "Running raycaster!\n";
         if(parser.hasOption("--multi")) {

Step 3/src/graphics/graphics.cpp

@@ -105,14 +105,14 @@ namespace Raytracing {
             glfwSetKeyCallback(window, [](GLFWwindow* _window, int key, int scancode, int action, int mods) -> void {
                 if (action == GLFW_PRESS)
                     Input::keyPressed(key);
-                else
+                else if (action == GLFW_RELEASE)
                     Input::keyReleased(key);
             });
     
             glfwSetMouseButtonCallback(window, [](GLFWwindow* _window, int button, int action, int mods) -> void {
                 if (action == GLFW_PRESS)
                     Input::mousePressed(button);
-                else
+                else if (action == GLFW_RELEASE)
                     Input::mouseReleased(button);
             });
     
@@ -517,7 +517,12 @@ namespace Raytracing {
                 pitch += (float) Input::getMouseDelta().y * (1000.0f / ImGui::GetIO().Framerate / 1000.0f) * 1.5f;
                 
                 PRECISION_TYPE moveAtX = 0, moveAtY = 0, moveAtZ = 0;
-                const PRECISION_TYPE speed = 40.0f;
+                PRECISION_TYPE speed = 40.0f;
+                
+                if (Input::isKeyDown(GLFW_KEY_LEFT_ALT))
+                    speed = 5.0f;
+                if (Input::isKeyDown(GLFW_KEY_LEFT_CONTROL))
+                    speed = speed * 2;
                 
                 if (Input::isKeyDown(GLFW_KEY_W))
                     moveAtX = speed * m_window.getFrameTimeSeconds();