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+/** CSci-4611 In-Class Example */
+
+#include "example.h"
+
+#include "config.h"
+
+#include <iostream>
+#include <sstream>
+
+
+
+Example::Example() : GraphicsApp(1024,768, "MinGfx Example") {
+ // Define a search path for finding data files (images and shaders)
+ search_path_.push_back(".");
+ search_path_.push_back("./data");
+ search_path_.push_back(DATA_DIR_INSTALL);
+ search_path_.push_back(DATA_DIR_BUILD);
+}
+
+
+Example::~Example() {
+}
+
+
+void Example::UpdateSimulation(double dt) {
+}
+
+
+void Example::InitOpenGL() {
+ // Set up the camera in a good position to see the entire scene
+ proj_matrix_ = Matrix4::Perspective(60.0f, aspect_ratio(), 0.01f, 100.0f);
+ view_matrix_ = Matrix4::LookAt(Point3(2,1,4), Point3(2,1,0), Vector3(0,1,0));
+ glClearColor(1,1,1,1);
+
+
+ // Load the texture we will use
+ texture_.InitFromFile(Platform::FindFile("monalisa.png", search_path_));
+
+
+ // Create the mesh by setting the vertex and index arrays directly
+ std::vector<unsigned int> indices;
+ std::vector<Point3> vertices;
+ std::vector<Vector3> normals;
+ std::vector<Point2> tex_coords;
+
+ // four vertices, each requires 3 floats: (x,y,z)
+ vertices.push_back(Point3(0,0,0));
+ vertices.push_back(Point3(1,0,0));
+ vertices.push_back(Point3(1,1,-1));
+ vertices.push_back(Point3(0,1,-1));
+
+ // four normals, each requires 3 floats: (x,y,z)
+ normals.push_back(Vector3(0,1,1).ToUnit());
+ normals.push_back(Vector3(0,1,1).ToUnit());
+ normals.push_back(Vector3(0,1,1).ToUnit());
+ normals.push_back(Vector3(0,1,1).ToUnit());
+
+ // TODO: YOU ADD TEXTURE COORDINATES TO THE MESH
+
+
+
+ // indices into the arrays above for the first triangle
+ indices.push_back(0);
+ indices.push_back(1);
+ indices.push_back(2);
+
+ // indices for the second triangle, note some are reused
+ indices.push_back(0);
+ indices.push_back(2);
+ indices.push_back(3);
+
+ mesh_.SetVertices(vertices);
+ mesh_.SetNormals(normals);
+ mesh_.SetIndices(indices);
+
+ // TODO: ALSO REMEMBER TO CALL mesh_.SetTexCoords(..) HERE ONCE YOU HAVE THEM DEFINED.
+ // USE TEXTURE UNIT = 0 SINCE WE HAVE ONLY ONE TEXTURE APPLIED TO THE MESH.
+
+ mesh_.UpdateGPUMemory();
+
+}
+
+
+void Example::DrawUsingOpenGL() {
+ // draws a set of axes at the world origin, since we are passing the identity
+ // matrix for the "model" matrix.
+ Matrix4 identity;
+ quick_shapes_.DrawAxes(identity, view_matrix_, proj_matrix_);
+
+
+ // We're already learned about how to use transformation matrices to move
+ // an individual model around within the scene.
+ Matrix4 model_matrix = Matrix4::Scale(Vector3(4,4,4));
+
+
+ // Since we want to texture the mesh we will define a custom material for the
+ // mesh. The material property we are interested in is called "surface_texture".
+ // We'll set that to point to the Texture2D that we loaded earlier. You can
+ // also set other properties of the material to define how it reflects light.
+ DefaultShader::MaterialProperties mesh_material;
+ mesh_material.surface_texture = texture_;
+ mesh_material.ambient_reflectance = Color(0.8f, 0.8f, 0.8f);
+ mesh_material.diffuse_reflectance = Color(0.8f, 0.8f, 0.8f);
+
+
+ // Use a shader program to draw the mesh with the given model, view, and projection
+ // matrices and with the material properties defined in mesh_material.
+ shader_.Draw(model_matrix, view_matrix_, proj_matrix_, &mesh_, mesh_material);
+}
+
+
+
+