Basic GLFW Tutorials with C++

GLFW (OpenGL FrameWork) is open source library to create OpenGL Window and multi-platform  too. Very easy to manage OpenGL context and event with GLFW. It is specially suitable for game development. GLFW doesn't render 3D scene for that you have to use OpenGL library function. GLFW help to create window , handle keyboard , mouse and joystick events. This tutorials is for those who are new to OpenGL and GLFW. By the end of this tutoirals series understand the basic knowledge about OpenGL and handling events with GLFW.

Tutorials 1: Setup GLFW in Code::Blocks IDE in Windows Machine

Tutorials 2:  Introduction to GLFW

Tutorials 3: Drawing Basic Shapes

Tutorials 4: Transformation: Translation, Rotation and Scalling

Tutorials 5: Texture Mapping 

Modern OpenGL Tutorial Series

Modern OpenGL are different than ancient opengl version before 2.0. After opengl 2.0 vetex shader and fragment shader became compulsory. It is little bit difficult for beginner to start.

All chapter include basic concept of Modern OpenGL and especially focus on beginner. After going through all the chapter user can get concept of shader, drawing shapes, perspective projection, transformation, color, texture mapping and load 3D model wavefront OBJ.

Download all the code as a zip from here: https://github.com/smokindinesh/Modern-OpenGL-Series/archive/master.zip

All the code in this series of articles is available from github: https://github.com/smokindinesh/Modern-OpenGL-Series You can download a zip of all the files from that page, or you can clone the repository if you are familiar with git.

Modern OpenGL tutorial 3D model .obj loader/parser with C++ and GLM

When you need to draw a more advanced object like character, house, terrain, vehicles we can't pass the vertices by ourselves for these object so we have to use the 3D model and model are simply the meshes made of one or more number of vertices. There are many 3D modeling software one of them is blender which is open source also. Blender help to create the model and export it into different file format like .obj, 3ds, md2 etc among them I choose the .obj (wave front obj) file which is very simple. OBJ only contain vertex, normal, texture and other material information. It doesn't support animation for animation we can use  3ds, md2  3Dmodel. There are many library to load 3D model.

Download
All the code in this series of articles is available from github: https://github.com/smokindinesh/Modern-OpenGL-Series  You can download a zip of all the files from that page, or you can clone the repository if you are familiar with git.

 In this articles I will show you how to write your own .obj model parser.

Modern OpenGL tutorial Texture Mapping Example source code

Texture mapping technique haven't change in Modern OpenGL. If you are experience in ancient version of OpenGL you might have done Texture mapping which is similar to here.Only difference is adding the extra variable to the vertex shader and fragment shader. Texture memory lie in video memory similar to VBO which is uploaded to OpenGL. Two things we have to pass in vertex shader and fragment shader. One is texture co-ordinate to define how to map on vertex and another texture color data to define the color of every pixel.Many article are there in internet about texture.Some of the great article are below.

1. Texture Maping and Bitmap  This example use the OpenGL version 1.5 where VBO and VAO are absent.
2. Texture is not Picture Article presents whats the texture is about.
3. Texure This is the blog form where I learn about Modern OpenGL. 

Download
All the code in this series of articles is available from github: https://github.com/smokindinesh/Modern-OpenGL-Series  You can download a zip of all the files from that page, or you can clone the repository if you are familiar with git.

Modern OpenGL tutorial Playing with color example

At first have a look screen shot of our program what we have going to build.

You have seen a triangle having different color at each vertex. In previous tutorials series we are just drawing the white triangle without color.

Download
All the code in this series of articles is available from github: https://github.com/smokindinesh/Modern-OpenGL-Series  You can download a zip of all the files from that page, or you can clone the repository if you are familiar with git.

Modern OpenGL tutorial Rotation, Scalling and Translation Matrix using GML (OpenGL Mathematics)

In previous article perspective projection I have shown you how to do perspective projection. Now its time to do Scalling, Translation and Rotation which are very important task. In ancient version of OpenGL for these operation opengl provide funcition like glRotate, glScale, glTranslate but in modern opengl this function are not available so we are using GLM (OpenGL Mathematics) for doing such task. From this article I have change the source code with OOP. I have made two reusable classes Program and Shader.

Download
All the code in this series of articles is available from github: https://github.com/smokindinesh/Modern-OpenGL-Series  You can download a zip of all the files from that page, or you can clone the repository if you are familiar with git.

Setup GTK project in Code::Blocks (windows 7)

Follow the following step to setup GTK project in Code::Blocks (windows 7)

step 1: Download gtk+-bundle_2.24.10-20120208_win32.zip (all-in-one bundle) from http://www.gtk.org/download/win32.php

step 2:  Extract it in c drive creating new directory or any other place. In my case C:\GTK is the directory where I extracted the zip file.

My extracted files looks like below.