Evolution render loop

rendersystem.cpp

void RenderSystem::Update(float elapsed) {
    // Clear the screen
    glClearColor(0.0, 0.0f, 0.0f, 1.0f);
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    
    // Update our camera info
    glm::mat4 view = glm::lookAt(m_camera->translation, m_camera->translation + m_camera->look, m_camera->up);
    glm::mat4 projection = glm::perspective(glm::radians(m_camera->fov), m_camera->aspect, m_camera->fnear, m_camera->ffar);
    
    // Loop through all of our renderables and render them
    for(int i = 0; i < m_bucketSize; i++) {
        if(m_components[i]) {
            // Create an MVP matrix for us
            glm::mat4 model = glm::mat4(1.0f);
            glm::mat4 mvp = projection * view * model;
            
            // Cast to a Renderable we can use
            Renderable* component = (Renderable*)m_components[i];
            
            // Attach the shader program
            ShaderProgram* program = component->program;
            glUseProgram(program->program);
            
            // TODO: Move this outside of the loop
            glUniformMatrix4fv(program->uniform("mvp"), 1, GL_FALSE, &mvp[0][0]);
            
            // Bind the vertex attribute object, which will bind the buffers and attributes for us
            glBindVertexArray(component->vertexAttribObject);
            
            // Either draw from vertex array or indices if defined
            if(component->indexBuffer == 0)
                glDrawArrays(GL_TRIANGLES, 0, component->numTriangles * 3);
            else
                glDrawElements(GL_TRIANGLES, component->numTriangles * 3, GL_UNSIGNED_INT, 0);
            
            glBindVertexArray(0);
            glUseProgram(0);
        }
    }
    
    // Swap OpenGL buffers
    glfwSwapBuffers(m_window);
}