commit project files

loadOBJ.cpp

@@ -0,0 +1,93 @@
+#include "loadOBJ.h"
+#include <string>
+//#include <vector>
+#include <windows.h>
+//#include <gl\gl.h>
+//#include <gl\glu.h>
+//#include <cstdio>
+//#include <glm\glm.hpp>
+
+// using namespace glm;
+
+bool loadOBJ(const char* path, std::vector <glm::vec3>& out_vertices, std::vector <glm::vec2>& out_uvs, std::vector <glm::vec3>& out_normals){
+
+	std::vector <unsigned int> vertexIndices, uvIndices, normalIndices;
+	std::vector <glm::vec3> temp_vertices;
+	std::vector <glm::vec2> temp_uvs;
+	std::vector <glm::vec3> temp_normals;
+
+	printf("Ladowanie pliku %s...\n", path);
+
+	FILE* file = fopen(path, "r");
+	if (file == NULL) {
+		printf("Impossible to open the file!\n");
+		return false;
+	}
+
+	while (1) {
+
+		char lineHeader[128];
+		// read the first word of the line
+		int res = fscanf(file, "%s", lineHeader);
+		if (res == EOF) break; // EOF = End Of File. Quit the loop.
+
+		// else: parse lineHeader
+		if (strcmp(lineHeader, "v") == 0) {
+
+			glm::vec3 vertex;
+			fscanf(file, "%f %f %f\n", &vertex.x, &vertex.y, &vertex.z);
+			temp_vertices.push_back(vertex);
+
+		} else if (strcmp(lineHeader, "vt") == 0) {
+
+			glm::vec2 uv;
+			fscanf(file, "%f %f\n", &uv.x, &uv.y);
+			temp_uvs.push_back(uv);
+
+		} else if (strcmp(lineHeader, "vn") == 0) {
+
+			glm::vec3 normal;
+			fscanf(file, "%f %f %f\n", &normal.x, &normal.y, &normal.z);
+			temp_normals.push_back(normal);
+
+		} else if (strcmp(lineHeader, "f") == 0) {
+
+			std::string vertex1, vertex2, vertex3;
+			unsigned int vertexIndex[3], uvIndex[3], normalIndex[3];
+			int matches = fscanf(file, "%d/%d/%d %d/%d/%d %d/%d/%d\n", &vertexIndex[0], &uvIndex[0], &normalIndex[0], &vertexIndex[1], &uvIndex[1], &normalIndex[1], &vertexIndex[2], &uvIndex[2], &normalIndex[2]);
+
+			if (matches != 9){
+				printf("File can't be read by our simple parser : ( Try exporting with other options\n");
+				return false;
+			}
+
+			vertexIndices.push_back(vertexIndex[0]);
+			vertexIndices.push_back(vertexIndex[1]);
+			vertexIndices.push_back(vertexIndex[2]);
+			uvIndices    .push_back(uvIndex[0]);
+			uvIndices    .push_back(uvIndex[1]);
+			uvIndices    .push_back(uvIndex[2]);
+			normalIndices.push_back(normalIndex[0]);
+			normalIndices.push_back(normalIndex[1]);
+			normalIndices.push_back(normalIndex[2]);
+		}
+
+		// For each vertex of each triangle
+		for (unsigned int i = 0; i < vertexIndices.size(); i++) {
+			unsigned int vertexIndex = vertexIndices[i];
+			unsigned int uvIndex = uvIndices[i];
+			unsigned int normalIndex = normalIndices[i];
+
+			glm::vec3 vertex1 = temp_vertices[vertexIndex - 1];
+			glm::vec2 vertex2 = temp_uvs[uvIndex - 1];
+			glm::vec3 vertex3 = temp_normals[normalIndex - 1];
+
+			out_vertices .push_back(vertex1);
+			out_uvs      .push_back(vertex2);
+			out_normals  .push_back(vertex3);
+		}
+
+	}
+
+	return 0;
+}