79 lines
2.3 KiB
C++
79 lines
2.3 KiB
C++
#include "mesh.h"
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#include "constants.h"
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#include <GL/glew.h>
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namespace kek {
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Vertex::Vertex(glm::vec3 pos, glm::vec3 normal, glm::vec2 texCoords) {
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this->pos = pos;
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this->normal = normal;
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this->texCoords = texCoords;
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}
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Mesh::Mesh(std::vector<Vertex> vertices, std::vector<uint32_t> indices) {
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this->vertices = vertices;
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this->indices = indices;
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glGenVertexArrays(1, &vao);
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glGenBuffers(1, &vbo);
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glGenBuffers(1, &ebo);
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glBindVertexArray(vao);
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glBindBuffer(GL_ARRAY_BUFFER, vbo);
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glBufferData(GL_ARRAY_BUFFER, vertices.size() * sizeof(Vertex), &vertices[0], GL_STATIC_DRAW);
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//glBindBuffer(GL_ARRAY_BUFFER, 0);
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ebo);
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glBufferData(GL_ELEMENT_ARRAY_BUFFER, indices.size() * sizeof(unsigned int), &indices[0], GL_STATIC_DRAW);
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//glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
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glVertexAttribPointer(KEK_VERTEX_SHADER_IN_POSITION, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), 0);
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glEnableVertexAttribArray(KEK_VERTEX_SHADER_IN_POSITION);
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glVertexAttribPointer(KEK_VERTEX_SHADER_IN_NORMAL, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void *) offsetof(Vertex, normal));
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glEnableVertexAttribArray(KEK_VERTEX_SHADER_IN_NORMAL);
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glVertexAttribPointer(KEK_VERTEX_SHADER_IN_TEXCOORD, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void *) offsetof(Vertex, texCoords));
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glEnableVertexAttribArray(KEK_VERTEX_SHADER_IN_TEXCOORD);
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glBindVertexArray(0);
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GLenum err = glGetError();
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if(err != GL_NO_ERROR) {
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std::cout << "OpenGL error while loading mesh: " << err << std::endl;
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exit(1);
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}
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}
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Mesh::~Mesh() {
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glDeleteBuffers(1, &ebo);
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glDeleteBuffers(1, &vbo);
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glDeleteVertexArrays(1, &vao);
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}
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void Mesh::draw(Shader *shader) {
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glBindVertexArray(vao);
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glBindBuffer(GL_ARRAY_BUFFER, vbo);
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ebo);
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/*if(!light) {
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material->diffuse->use(GL_TEXTURE0);
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glUniform1i(glGetUniformLocation(shader->id, "material.diffuse"), 0);
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material->specular->use(GL_TEXTURE1);
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glUniform1i(glGetUniformLocation(shader->id, "material.specular"), 1);
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glUniform1f(glGetUniformLocation(shader->id, "material.shininess"), material->shininess);
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}*/
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// Bind vertices + texture coordinates
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glDrawElements(GL_TRIANGLES, indices.size(), GL_UNSIGNED_INT, 0);
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glBindBuffer(GL_ARRAY_BUFFER, 0);
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
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glBindVertexArray(0);
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}
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}
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