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55 lines
2.1 KiB
C++
55 lines
2.1 KiB
C++
#pragma once
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#include "mesh.h"
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#include "utils.h"
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#include "logger.h"
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Mesh::Mesh(const std::vector<Vertex>& vertices, const std::vector<unsigned int>& indices, const std::vector<Texture>& textures) {
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_vertices = vertices;
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_indices = indices;
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_textures = textures;
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setupMesh();
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}
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Mesh::Mesh(const std::vector<Vertex>& vertices, const std::vector<Texture>& textures) {
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_vertices = vertices;
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_textures = textures;
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setupMesh();
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}
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void Mesh::render(const ShaderProgram& shader) const {
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unsigned int diffuseNr = 1;
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unsigned int specularNr = 1;
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for (int i = 0; i < _textures.size(); i++) {
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OPENGL_EXTRA_FUNCTIONS->glActiveTexture(GL_TEXTURE0 + i); // activate proper texture unit before binding
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// retrieve texture number (the N in diffuse_textureN)
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std::string number;
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std::string name = _textures[i].type() == TextureType::DIFFUSE ? "texture_diffuse" : "texture_specular";
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name = "material." + name;
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if (_textures[i].type() == TextureType::DIFFUSE)
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number = std::to_string(diffuseNr++);
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else if (_textures[i].type() == TextureType::SPECULAR)
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number = std::to_string(specularNr++);
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shader.setUniform(name + number, i);
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_textures[i].bind();
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}
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OPENGL_EXTRA_FUNCTIONS->glActiveTexture(GL_TEXTURE0);
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_vao.bind();
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OPENGL_EXTRA_FUNCTIONS->glDrawElements(GL_TRIANGLES, _indices.size(), GL_UNSIGNED_INT, 0);
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_vao.unbind();
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}
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void Mesh::setupMesh() {
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_vao = VertexArrayObject(_vertices, _indices);
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_vao.setVertexAttributePointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)0);
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_vao.setVertexAttributePointer(1, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)OFFSETOF(Vertex, _normal));
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_vao.setVertexAttributePointer(2, 2, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)OFFSETOF(Vertex, _texCoords));
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//_vao.setVertexAttributePointer(3, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)OFFSETOF(Vertex, _tangent));
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//_vao.setVertexAttributePointer(4, 3, GL_FLOAT, GL_FALSE, sizeof(Vertex), (void*)OFFSETOF(Vertex, _bitangent));
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}
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