Book Image

OpenGL Development Cookbook

By : Muhammad Mobeen Movania
Book Image

OpenGL Development Cookbook

By: Muhammad Mobeen Movania

Overview of this book

OpenGL is the leading cross-language, multi-platform API used by masses of modern games and applications in a vast array of different sectors. Developing graphics with OpenGL lets you harness the increasing power of GPUs and really take your visuals to the next level. OpenGL Development Cookbook is your guide to graphical programming techniques to implement 3D mesh formats and skeletal animation to learn and understand OpenGL. OpenGL Development Cookbook introduces you to the modern OpenGL. Beginning with vertex-based deformations, common mesh formats, and skeletal animation with GPU skinning, and going on to demonstrate different shader stages in the graphics pipeline. OpenGL Development Cookbook focuses on providing you with practical examples on complex topics, such as variance shadow mapping, GPU-based paths, and ray tracing. By the end you will be familiar with the latest advanced GPU-based volume rendering techniques.
Table of Contents (15 chapters)
OpenGL Development Cookbook
About the Author
About the Reviewers

Implementing 3ds model loading using separate buffers

We will now create model loader and renderer for Autodesk® 3ds model format which is a simple yet efficient binary model format for storing digital assets.

Getting started

The code for this recipe is contained in the Chapter5/3DsViewer folder. This recipe will be using the Drawing a 2D image in a window using a fragment shader and the SOIL image loading library recipe from Chapter 1, Introduction to Modern OpenGL, for loading the 3ds mesh file's textures using the SOIL image loading library.

How to do it…

The steps required to implement a 3ds file viewer are as follows:

  1. Create an instance of the C3dsLoader class. Then call the C3dsLoader::Load3DS function passing it the name of the mesh file and a set of vectors to store the submeshes, vertices, normals, uvs, indices, and materials.

    if(!loader.Load3DS(mesh_filename.c_str( ), meshes, vertices, normals, uvs, faces, indices, materials)) {
      cout<<"Cannot load the 3ds mesh"<<endl;