build basic coil segment with some problems ;)

.gitignore

@@ -35,3 +35,4 @@
 build/
 
 *.csv
+.cache/

.vscode/launch.json

@@ -0,0 +1,16 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "lldb",
+            "request": "launch",
+            "name": "Debug",
+            "program": "${workspaceFolder}/<executable file>",
+            "args": [],
+            "cwd": "${workspaceFolder}"
+        }
+    ]
+}

CMakeLists.txt

@@ -3,6 +3,7 @@ project(TimeCoil)
 
 include(FetchContent)
 
+SET(CMAKE_BUILD_TYPE Debug)
 SET(PROJECT_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/src/main.cpp src/glad.c
                     ${CMAKE_CURRENT_SOURCE_DIR}/src/coil/coil.cpp
                     ${CMAKE_CURRENT_SOURCE_DIR}/src/coil/segment.cpp

build.sh

@@ -1,2 +1,2 @@
 #!/usr/bin/env bash
-cd build && cmake -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DCMAKE_C_FLAGS="-g -v -da -Q -O0" .. && make && ./TimeCoil > ../points.csv && python ../tools/build_3d.py ../points.csv
+cd build && cmake -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DCMAKE_C_FLAGS="-g -v -da -Q -O0" .. && make && ./TimeCoil # > ../points.csv && python ../tools/build_3d.py ../points.csv

shaders/shader.vert

@@ -1,10 +1,15 @@
 #version 330 core
 layout (location = 0) in vec3 aPos;
 layout (location = 1) in vec3 col;
+
+uniform mat4 model;
+uniform mat4 view;
+uniform mat4 projection;
+
 out vec3 frag_col;
 
 void main()
 {
     frag_col = col;
-    gl_Position = vec4(aPos.x, aPos.y, aPos.z, 1.0);
+    gl_Position = projection * view * model * vec4(aPos, 1.0);
 }

src/coil/coil.cpp

@@ -1,15 +1,18 @@
+#include <cstdint>
 #include <glad/glad.h>
 #include <GLFW/glfw3.h>
+#include <iostream>
 
 #include <coil/coil.hpp>
 #include <coil/segment.hpp>
 #include <utils/utils.hpp>
 
-Coil::Coil(uint32_t currentYear, uint32_t amountOfSegments) 
-	: currentYear(currentYear) {
+Coil::Coil(uint32_t currentYear, uint32_t amountOfSegments, uint32_t sliceDetalization, float radius, float width) 
+	: radius(radius), width(width), currentYear(currentYear) {
 	for (short i = amountOfSegments / -2.; i < amountOfSegments / 2.; i++) {
 		uint32_t year = this->currentYear + i;
-    	segments.push_back(CoilSegment(this, year, segmentHeight, i, 3,false));
+
+    	segments.push_back(CoilSegment(this, year, segmentHeight, i, sliceDetalization,false));
 	}
 };
 
@@ -17,20 +20,47 @@ std::vector<CoilSegment> &Coil::getSegments() {
 	return segments;
 }
 
-double Coil::getWidth() {
+float Coil::getWidth() {
 	return width;
 }
 
-void Coil::render() {
-	prepareShaders();
-	uint64_t VBO;
-	glGenBuffers(1, (unsigned int*) &(VBO));
-	glBindBuffer(GL_ARRAY_BUFFER, VBO); 
-	for (CoilSegment segment : segments) {
-		double* vertices = segment.getVertices();
-		uint64_t verticesLength = segment.getVerticesLength();
-		glBufferData(GL_ARRAY_BUFFER, verticesLength, vertices, GL_STATIC_DRAW);
-		
+float Coil::getRadius() {
+	return radius;
+}
 
+void Coil::initGLBuffers() {
+
+	glGenVertexArrays(1, &VAO);
+	glGenBuffers(1, &VBO);
+	glGenBuffers(1, &EBO);
+
+	glBindVertexArray(VAO);
+
+	glBindBuffer(GL_ARRAY_BUFFER, VBO);
+	glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
+
+	// glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW);
+
+	glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(float), (void*)0);
+	glEnableVertexAttribArray(0);
+
+	glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(float), (void*) (3 * sizeof(float)));
+	glEnableVertexAttribArray(1);
+
+	glBindVertexArray(0);
+}
+
+void Coil::render() {
+	glBindVertexArray(VAO);
+	std::cout << "Rendering a coil." << std::endl;
+	for (CoilSegment segment : segments) {
+		std::cout << "Rendering " << segment.getYear() << std::endl;
+		segment.fillVBO();
+		uint64_t indicesCount = segment.fillEBO(EBO);
+		glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
+		// glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
+		// glDrawArrays(GL_POINTS, 0, segment.getVerticesLength());
+		glDrawElements(GL_TRIANGLES_ADJACENCY, sizeof(unsigned int)*indicesCount, GL_UNSIGNED_INT, 0);
 	}
+	glBindVertexArray(0);
 }

src/coil/coil.hpp

@@ -1,5 +1,6 @@
 #include <vector>
 #include "segment.hpp"
+#include <glad/glad.h>
 
 #ifndef COIL_HPP 
 #define COIL_HPP
@@ -9,18 +10,22 @@
 
 class Coil {
     // distance between coil center and nearest to it coil edge 
-    double radius;
+    float radius;
     // distance between coil slices edges
-    double width;
-    double segmentHeight;
+    float width;
+    float segmentHeight;
     uint32_t currentYear;
     std::vector<CoilSegment> segments;
 
+    GLuint VBO, VAO, EBO;
+
     public:
-    Coil(uint32_t currentYear, uint32_t amountOfSegments);
+    Coil(uint32_t currentYear, uint32_t amountOfSegments, uint32_t sliceDetalization, float radius, float width);
     std::vector<CoilSegment> &getSegments();
-    double getWidth();
+    float getWidth();
+    float getRadius();
     void render();
+    void initGLBuffers();
 };
 
 #endif // COIL_HPP

src/coil/segment.cpp

@@ -1,8 +1,10 @@
+#include <glm/common.hpp>
 #include <glm/ext/matrix_float4x4.hpp>
 #include <glm/ext/matrix_transform.hpp>
 #include <glm/trigonometric.hpp>
 #include <cstring>
 #include <iostream>
+#include <fstream>
 #include <glm/glm.hpp>
 #include <cstdint>
 
@@ -44,11 +46,12 @@ CoilSegment::CoilSegment(
 
 void CoilSegment::init () {
     verticesLength = DAYS_IN_YEAR * FIELDS_IN_POINT * (sliceDetalization+2);
-    vertices = (double *) calloc(verticesLength, sizeof(double));
+    vertices = (float *) calloc(verticesLength, sizeof(float));
     if (vertices == NULL) {
         cerr << "Allocation failed" << endl;
         exit(-1);
     }
+    calculate();
     // cout << "Initialized CoilSegment" 
     //     << "(year: " << year 
     //     << ", height: " << height 
@@ -69,9 +72,19 @@ void CoilSegment::printVertices() {
 }
 
 
-double *CoilSegment::calculateSlice() {
-    uint32_t size = (/*start and end of a slize*/2 + sliceDetalization) * FIELDS_IN_POINT * sizeof(double);
-    double *slice = (double *)malloc(size);
+float *CoilSegment::calculateSlice() {
+    uint32_t size = (/*start and end of a slize*/2 + sliceDetalization) * FIELDS_IN_POINT * sizeof(float);
+    float *slice = (float *)malloc(size);
+    mat4 transform = mat4(1.);
+    transform = glm::scale(
+        transform,
+        vec3(
+            coil->getWidth(),
+            10,
+            1
+        )
+    );
+    vec3 point = vec3(cos(0), sin(0), 0);
     // Start of a slice
     slice[0] = cos(0);
     slice[1] = sin(0);
@@ -80,7 +93,7 @@ double *CoilSegment::calculateSlice() {
     slice[4] = 1;
     slice[5] = 1;
 
-    double degreeByPoint = -180. / (sliceDetalization + 1);
+    float degreeByPoint = -180. / (sliceDetalization + 1);
 
     for (uint32_t i = 1; i <= sliceDetalization; i ++) {
         uint32_t offset = FIELDS_IN_POINT * i;
@@ -94,7 +107,7 @@ double *CoilSegment::calculateSlice() {
     }
 
     // End of a slice
-    uint32_t endIndex = (size / sizeof(double) - FIELDS_IN_POINT); 
+    uint32_t endIndex = (size / sizeof(float) - FIELDS_IN_POINT); 
     slice[endIndex + 0] = round_to_presicion(cos(radians(180.)), 5);
     slice[endIndex + 1] = round_to_presicion(sin(radians(180.)), 5);
     slice[endIndex + 2] = 0;
@@ -105,17 +118,15 @@ double *CoilSegment::calculateSlice() {
     return slice;
 }
 
-void CoilSegment::constructSegment(double *slice) {
-
-    double degreesPerDay = 360.f / DAYS_IN_YEAR;
+void CoilSegment::constructSegment(float *slice) {
+    float degreesPerDay = 360.f / DAYS_IN_YEAR;
 
     for (uint32_t day = 0; day < DAYS_IN_YEAR; day ++) {
         float daysDegree = day * degreesPerDay;
-        // TODO: replace hardcoded value to coil->getWidth();
         vec3 daysPosition = vec3(
-            cos(radians(daysDegree)) * 200,
+            cos(radians(daysDegree)) * coil->getRadius(),
             10* daysDegree/360.,
-            sin(radians(daysDegree)) * 200
+            sin(radians(daysDegree)) * coil->getRadius()
         );
 
         mat4 transform = mat4(1.);
@@ -150,14 +161,78 @@ void CoilSegment::constructSegment(double *slice) {
             vertices[currentPointOffset + 1] = point.y;
             vertices[currentPointOffset + 2] = point.z;
 
-            memcpy(
-                vertices + currentPointOffset + 3,
-                slice + slicePointOffset + 3,
-                3
-            );
+            vertices[currentPointOffset + 3] = 0.5;
+            vertices[currentPointOffset + 4] = 0.5;
+            vertices[currentPointOffset + 5] = 0.5;
+            
+            // memcpy(
+            //     vertices + currentPointOffset + 3,
+            //     slice + slicePointOffset + 3,
+            //     3
+            // );
         }
     }
 }
+void CoilSegment::fillVBO() {
+    // printVertices();
+    glBufferData(GL_ARRAY_BUFFER, sizeof(float) * verticesLength, vertices, GL_STATIC_DRAW);
+}
+uint64_t CoilSegment::fillEBO(uint64_t EBO) {
+    uint64_t indicesLength = 6 * (sliceDetalization+2) * DAYS_IN_YEAR;
+    uint64_t currentIndex = 0;
+    uint64_t* indices = (uint64_t*) calloc(indicesLength, sizeof(uint64_t));
+    for (uint64_t day = 0; day < DAYS_IN_YEAR; day ++) {
+        for (uint64_t pointOfSlice = 0; pointOfSlice < (sliceDetalization+2); pointOfSlice ++) {
+            // cout << currentIndex << endl;
+            uint64_t dayOffset = day * (sliceDetalization+2);
+            uint64_t offset = dayOffset + pointOfSlice;
+            //First triangle
+            indices[currentIndex] = offset;
+            currentIndex ++;
+            indices[currentIndex] = offset + (sliceDetalization+2);
+            currentIndex ++;
+            indices[currentIndex] = offset + 1;
+            currentIndex++;
+            //Second triangle
+            
+            if (pointOfSlice % (sliceDetalization+1) == 0 && pointOfSlice != 0) {
+                indices[currentIndex] = offset - (sliceDetalization+2);
+                currentIndex++;
+                indices[currentIndex] = offset + 1;
+                currentIndex++;
+                indices[currentIndex] = offset;
+            } else {
+                indices[currentIndex] = offset + 1;
+                currentIndex++;
+                indices[currentIndex] = offset + (sliceDetalization+3);
+                currentIndex ++;
+                indices[currentIndex] = offset + (sliceDetalization+2);
+            }
+            currentIndex ++;            
+        }
+    }
+
+    // for (uint64_t i = 0; i < indicesLength; i ++) {
+    //     cout << indices[i] << ",";
+    // }
+    // cout << endl;
+    // cout << indicesLength << endl;
+
+    if (currentIndex != indicesLength) {
+        cerr << "currentIndex == indicesLength assertion failed" << endl; 
+        cerr << currentIndex << " " << indicesLength << endl;
+    }
+    glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
+    glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(unsigned long) * indicesLength, indices, GL_STATIC_DRAW); 
+    free(indices);
+    return indicesLength;
+}
+
+// void testEBO(uint64_t *EBO, uint64_t length) {
+//     for (uint64_t i = 0; i < length; i ++) {
+
+//     }
+// }
 // Sample layout of 2 slices with 3 points.
 //  |x |y |z |r |g |b |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
 //  0  1  2  3  4  5  6  7  8  9  10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38
@@ -165,45 +240,48 @@ void CoilSegment::constructSegment(double *slice) {
 //  |                  slice                              |             slice                                   |
 //  
 void CoilSegment::calculate() {
-    double *slice = calculateSlice();
+    float *slice = calculateSlice();
 
     constructSegment(slice);
     exportSegmentToCsv();
 
 }
 
-double *CoilSegment::getVertices() {
-    return vertices;
-}
+float *CoilSegment::getVertices() { return vertices; }
 
-uint64_t CoilSegment::getVerticesLength() {
-    return verticesLength;
-}
+uint64_t CoilSegment::getVerticesLength() { return verticesLength; }
+
+uint16_t CoilSegment::getYear() { return year; }
 
 void CoilSegment::render() {
 
 }
+void CoilSegment::exportSliceToCSV(float *slice) {
+    cout << "Exporting slice to csv" << endl;
+    std::ofstream outFile("./slice_export.csv");
 
-void CoilSegment::exportSliceToCSV(double *slice) {
-    cout << "x,y,z" << endl;
+    outFile << "x,y,z" << endl;
     
     for (uint32_t i = 0; i < sliceDetalization+2; i ++) {
         uint32_t offset = FIELDS_IN_POINT * i;
-        cout
+        outFile
                   << slice[offset + 0] << ","
                   << slice[offset + 1] << ",0" << endl;
     }
 }
 
 void CoilSegment::exportSegmentToCsv() {
-    cout << "x,y,z" << endl;
+    cout << "Exporting segment to csv" << endl;
+    std::ofstream outFile("./segment_export.csv");
+
+    outFile << "x,y,z" << endl;
 
     for (uint16_t day = 0; day < DAYS_IN_YEAR; day ++) {
         uint64_t dayOffset = day * (2+sliceDetalization) * FIELDS_IN_POINT;
 
         for (uint32_t point_in_slice = 0; point_in_slice < (2+sliceDetalization); point_in_slice ++) {
             uint32_t sliceOffset = point_in_slice * FIELDS_IN_POINT;
-            cout << vertices[dayOffset +  sliceOffset + 0] << "," 
+            outFile << vertices[dayOffset +  sliceOffset + 0] << "," 
                       << vertices[dayOffset +  sliceOffset + 1] << ","
                       << vertices[dayOffset +  sliceOffset + 2] << endl; 
         }

src/coil/segment.hpp

@@ -13,23 +13,26 @@ class CoilSegment {
     int shift;
     uint32_t sliceDetalization;
     bool isLeap;
-    double *vertices;
+    float *vertices;
     uint64_t verticesLength;
 
     void init();
-    double* calculateSlice();
-    void constructSegment(double *slice);
+    float* calculateSlice();
+    void constructSegment(float *slice);
 
     public:
     CoilSegment(Coil* coil, uint16_t year, uint16_t height, int shift, uint32_t sliceDetalization, bool isLeap);
     void calculate();
     void printVertices();
-    double *getVertices();
+    float *getVertices();
     uint64_t getVerticesLength();
-    void printSlice(double *slice);
-    void exportSliceToCSV(double *slice);
+    void printSlice(float *slice);
+    void exportSliceToCSV(float *slice);
     void exportSegmentToCsv();
     void render();
+    void fillVBO();
+    uint64_t fillEBO(uint64_t EBO);
+    uint16_t getYear();
 };
 
 #endif // COIL_SEGMENT_HPP

src/main.cpp

@@ -3,11 +3,23 @@
 #include <cstring>
 #include <cmath>
 #include <cstdlib>
+#include <ctime>
+#include <iostream>
+#include <glm/glm.hpp>
+#include <glm/gtc/matrix_transform.hpp>
+#include <glm/gtc/type_ptr.hpp>
 
-#include "coil/coil.hpp"
-#include "coil/segment.hpp"
+#include <coil/coil.hpp>
+#include <coil/segment.hpp>
+#include <utils/utils.hpp>
 
-#define RAND_0_1 ((double)rand()) / RAND_MAX
+using std::cerr;
+using std::cout;
+using std::endl;
+
+#define RAND_0_1 ((float)rand()) / RAND_MAX
+#define DISPLAY_WIDTH 800
+#define DISPLAY_HEIGHT 600
 
 void framebufferSizeCallback(GLFWwindow *window, int width, int height) {
     glViewport(10, 10, width-10, height-10);
@@ -19,28 +31,108 @@ void processInput(GLFWwindow *window) {
 	}
 }
 
-void updateVertices(double (&vertices)[24]) {
-	// if (RAND_0_1 < 0.99f) return; 
-	double a[] = {
-		-1.0f, 1.0f, 0.0f,  RAND_0_1, RAND_0_1, RAND_0_1,    // upper left
-    	-1.0f, -1.0f, 0.0f,  RAND_0_1, RAND_0_1, RAND_0_1,   // bottom left
-     	1.0f,  1.0f, 0.0f,  RAND_0_1, RAND_0_1, RAND_0_1,    // upper right
-		1.0f, -1.0f, 0.0f,  RAND_0_1, RAND_0_1, RAND_0_1     // bottom right
-	};
-
-	// vertices = a;
-	memcpy(vertices, a, sizeof(a));
-}
 
 int main () {
-	Coil c = Coil(2025, 1);
+
+	Coil c = Coil(2025, 1, 5,  50, 10);
+
+	srand(time(0));
+	glfwInit();
+	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+	glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
+	glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+#ifdef __APPLE__
+	glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
+#endif
+
+	GLFWwindow *window = glfwCreateWindow(DISPLAY_WIDTH, DISPLAY_HEIGHT, "TimeCoil", NULL, NULL);
+	if (window == NULL) {
+		cerr << "Failed to create GLFW window." << endl;
+		gracefulExit(-1);
+	}
+	
+	glfwMakeContextCurrent(window);
+	glfwSetFramebufferSizeCallback(window, framebufferSizeCallback);
+
+	if (!gladLoadGLLoader((GLADloadproc)glfwGetProcAddress)) {
+		cerr << "Failed to initialize GLAD." << endl;
+		gracefulExit(-1);
+	}
+	
+	uint64_t shaderProgram = prepareShaders();
+	glUseProgram(shaderProgram);
+
+	glm::mat4 projection = glm::mat4(1.0f);
+	projection = glm::perspective(glm::radians(50.0f), (float)DISPLAY_WIDTH / (float)DISPLAY_HEIGHT, 0.001f, 2000.0f);
+
+	unsigned int projectionLoc  = glGetUniformLocation(shaderProgram, "projection");
+	glUniformMatrix4fv(projectionLoc, 1, GL_FALSE, glm::value_ptr(projection));
+
+
+	c.initGLBuffers();
+
+	// float vertices[] = {
+    //     // positions          // texture coords
+    //      05.5f,  0.5f, 0.0f,   1.0f, 1.0f, // top right
+    //      0.5f, -0.5f, 0.0f,   1.0f, 0.0f, // bottom right
+    //     -0.5f, -0.5f, 0.0f,   0.0f, 0.0f, // bottom left
+    //     -0.5f,  0.5f, 0.0f,   0.0f, 1.0f  // top left 
+    // };
+    // unsigned int indices[] = {
+    //     0, 1, 3, // first triangle
+    //     1, 2, 3  // second triangle
+    // };
+    // unsigned int VBO, VAO, EBO;
+    // glGenVertexArrays(1, &VAO);
+    // glGenBuffers(1, &VBO);
+    // glGenBuffers(1, &EBO);
+
+    // glBindVertexArray(VAO);
+
+    // glBindBuffer(GL_ARRAY_BUFFER, VBO);
+    // glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
+
+    // glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
+    // glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW);
+
+    // // position attribute
+    // glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 5 * sizeof(float), (void*)0);
+    // glEnableVertexAttribArray(0);
+    // // texture coord attribute
+    // glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 5 * sizeof(float), (void*)(3 * sizeof(float)));
+    // glEnableVertexAttribArray(1);
+
+	while(!glfwWindowShouldClose(window)) {
+		processInput(window);
+
+		glClearColor(0.2f, 0.3f, 0.3f, 1.0f);
+		glClear(GL_COLOR_BUFFER_BIT);	
+
+		glm::mat4 model = glm::mat4(1.0f);
+        glm::mat4 view = glm::mat4(1.0f);
+        model = glm::rotate(model, glm::radians(5.0f), glm::vec3(1.0f, 0.0f, 0.0f));
+        view  = glm::translate(view, glm::vec3(0.0f, 0.0f, -89.0f));
+
+		unsigned int modelLoc = glGetUniformLocation(shaderProgram, "model");
+        unsigned int viewLoc  = glGetUniformLocation(shaderProgram, "view");
+		
+        glUniformMatrix4fv(modelLoc, 1, GL_FALSE, glm::value_ptr(model));
+        glUniformMatrix4fv(viewLoc, 1, GL_FALSE, glm::value_ptr(view));
+
+		c.render();
+		// glBindVertexArray(VAO);
+        // glDrawElements(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
+
+	    glfwSwapBuffers(window);
+	    glfwPollEvents();		
+	}
 
 	// CoilSegment cs = CoilSegment(10, 0, false);
-	for (auto segment : c.getSegments()) {
-		// segment.printVertices();
-	}
+	// for (auto segment : c.getSegments()) {
+	// 	// segment.printVertices();
+	// }
 	// cs.printVertices();
-	return 0;
+	gracefulExit(0);
 // 	srand(time(0));
 // 	glfwInit();
 // 	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
@@ -66,10 +158,10 @@ int main () {
 
 // 	unsigned int shaderProgram = prepareShaders();
 
-// 	double *vertices = cs.getVertices();
+// 	float *vertices = cs.getVertices();
 // 	unsigned int amountOfVerticies = cs.getVerticesLength();
 // 	std::cout << amountOfVerticies << std::endl;
-// 	// double vertices[] = {
+// 	// float vertices[] = {
 // 	// 	-1.0f, -1.0f, 0.0f,  1.0f, 0.0f, 0.0f,    // upper left
 //     // 	-0.5f, -0.5f, 0.0f,  0.0f, 1.0f, 0.0f,   // bottom left
 //     //  	0.5f,  0.5f, 0.0f,  1.0f, 0.0f, 0.0f,    // upper right
@@ -92,10 +184,10 @@ int main () {
 // 	glBufferData(GL_ARRAY_BUFFER, amountOfVerticies, vertices, GL_STATIC_DRAW);
 // 	// glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(indices), indices, GL_STATIC_DRAW);
 
-// 	glVertexAttribPointer(0, 3, GL_DOUBLE, GL_FALSE, 6 * sizeof(double), (void*)0);
+// 	glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(float), (void*)0);
 // 	glEnableVertexAttribArray(0);
 
-// 	glVertexAttribPointer(1, 3, GL_DOUBLE, GL_FALSE, 6 * sizeof(double), (void*) (3 * sizeof(double)));
+// 	glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 6 * sizeof(float), (void*) (3 * sizeof(float)));
 // 	glEnableVertexAttribArray(1);
 
 // 	glBindVertexArray(0);
@@ -108,8 +200,8 @@ int main () {
 	
 // 		glUseProgram(shaderProgram);
 
-// 		// double time = glfwGetTime();
-// 		// double greenValue = sin(time);
+// 		// float time = glfwGetTime();
+// 		// float greenValue = sin(time);
 		
 
 // 		// int vertexColorLocation = glGetUniformLocation(shaderProgram, "MyColor");

src/utils/utils.cpp

@@ -5,7 +5,7 @@
 #include <fstream>
 #include <iostream>
 
-double round_to_presicion( double value, int precision ) {
+float round_to_presicion( float value, int precision ) {
     const int adjustment = pow(10,precision);
     return floor( value*(adjustment) + 0.5 )/adjustment;
 }
@@ -32,7 +32,7 @@ void gracefulExit(int code) {
 	exit(code);
 }
 
-unsigned int prepareShaders() {
+uint64_t prepareShaders() {
 	unsigned int vertexShader = glCreateShader(GL_VERTEX_SHADER);
 	unsigned int fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
 

src/utils/utils.hpp

@@ -3,10 +3,10 @@
 #include <cmath>
 #include <string>
 
-double round_to_presicion( double value, int precision );
+float round_to_presicion( float value, int precision );
 
 std::string readFile(std::string path);
 
 void gracefulExit(int code);
 
-unsigned int prepareShaders();
+uint64_t prepareShaders();