In this tutorial I’ll introduce you to the basics of building an application using GLUT. x API calls with OpenGL ES 2. com you can find used, antique and new books, compare results and immediately purchase your selection at the best price. 3D Shapes Expanding on the last tutorial, we'll now make the object into TRUE 3D object, rather than 2D objects in a 3D world. So, the last transform comes first and the first transform occurs last in. Contrast this with the previous example. All scripts are free for any use. From geometric primitives to animation to 3D modeling to lighting, shading and texturing, Computer Graphics Through OpenGL: From Theory to Experiments is a comprehensive introduction to computer graphics which uses an active learning style to teach key concepts. I haven't seen many articles on the Web integrate functionality other than just setting a basic OpenGL window inside of an existing MFC control. One buffer is displayed while the other buffer is being drawn into. This is a vast topic, and this OpenGL tutorial can't claim this is all you need to know to be able to build 3D games or modeling softwares. glBindTexture(GL_TEXTURE_2D, tex); Just like other objects, textures have to be bound to apply operations to them. The two images are most conveniently added together by using the accumulation buffer. The most recent version also knows how to export 3d files and is therefore suitable as a general-purpose 3D model converter. Can anyone provide me with an entire project written in C ++ for OpenGL 3. 1 era code to get started with the basics. Particle Systems. OpenGL(R) SuperBible, Seventh Edition, is the definitive programmer's guide, tutorial, and reference for OpenGL 4. Modern OpenGL C++ 3D Game Tutorial Series & 3D Rendering 4. In this tutorial I'll introduce you to the basics of building an application using GLUT. If you’ve ever made a 2D game and needed to animate your sprites, you likely asked your artist to create separate images for each frame of the animation, like this example from iOS Games by Tutorials: You then probably wrote some code to play through the list of frames quickly, to give the. Import scripts from Final Draft and standard image, vector and audio formats. Mainly to separate the TGA loader into a header and an code file. com tutorialspoint. Check them out at: OpenGL ES 2. Oolite Oolite is a free and open source space trading and combat simulation game where you are the pilot of 3d game opengl source code free download - SourceForge. Android examples (example source code) Organized by topic. A Smooth Animation. All morph targets must have the same number of vertices. OpenGL Examples Here are some OpenGL example programs, presented in an order in which new topics are added in each successive example. You can compile the program with nim c nim_opengl_shader_example. C++ Game Development By Example starts by touching upon the basic concepts of math, programming, and computer graphics and creating a simple side-scrolling action 2D game. obj does not support animation. Traditionally people use GLUT for introductions to OpenGL programming, but there are better alternatives like GLFW which is quite similar to GLUT, but being more actively developed. A Simple Animation. If you're running AdBlock, please consider whitelisting this site if you'd like to support LearnOpenGL; and no worries, I won't be mad if you don't :). 1D, 2D, 3D and cube map textures. (high level overview of COLLADA documents) 2) Actual Implementations in C++ using OpenGL, of what we learn in Part 1. Here is what you get for free, as the kids say. You will of course need to take care of looping and sequence order yourself. The algorithm for generating Perlin noise is easily modified to make animation sequences. The OpenGL renderer displays objects sorted in front to back order, as seen on the monitor. That is why I am asking for what file formats do support animation / can animations be stored in a separate file. Example 3: Orthographic Projection ( OGL03Orthographic. Render each frame Layout Display Prepare Commit. You can get the model and animation data out quite easily. This is Java 2D games tutorial. History serves many purposes, but one of its more important functions is to provide us with a reference point so that we may see how far we've traveled. Mesa is a 3D graphics library with an API which is very similar. Experienced Android programmers who want to enter the 3D world of OpenGL ES programming. With OpenGL, you can get hardware accelerated 2D and 3D rendering. RealityCapture is the state-of-the-art photogrammetry software solution that is changing the industry. Now do a walking animation in Blender with that model and skeleton; Take some "keyFrames" of that animation and export every "keyFrame" as a single model (for example as obj file) Make an OBJ file loader for OpenGL (to get vertex, texture, normal and face data). 3d game opengl source code free download. Example 3: Orthographic Projection ( OGL03Orthographic. Professor Angel was the Principal Investigator of the NSF funded Digital Pueblo Project which combined Arts and Technology to promote economic development among the communities in New Mexico through collaborative graphics and animation projects. that will update which frame we are currently on for the current animation. The CSS bubble animation that features on 7UP is a beautiful example of carrying a brand theme through into the website design. Download free demos and experience how NVIDIA technology impacts graphics today!. An example of an OpenGL animation loop using the Win32 API. A Simple Animation. Introduction to Game Programming ÆHomework 4 example Vector Unit 0 through micro & macro mode So far, just like OpenGL, right?. The API is typically used to interact with a graphics processing unit (GPU), to achieve hardware-accelerated rendering. 0 since it is much simpler and avoids complicating the core subject of the tutorial: GLUT. All chapter include basic concept of Modern OpenGL and especially focus on beginner. Tutorial 4 : Quick FPS Level. Dev-C++ gives the possibility to add existing files to a project, but we will in our tutorial restrict ourselves to the creation of a new empty source code file. The text is example driven, filled with lots of tips and has links to the official Qt documentation. The basic idea is to generate a block of 3D Perlin noise, cut it in slices, and use each slice as an image of the animation sequence. OpenGL Evolution & JOGL and the JOGL Specification may give you a brief overview. Download free demos and experience how NVIDIA technology impacts graphics today!. OK, so far so good. I have an artist that can create animations in Blender. OpenGL® SuperBible, Sixth Edition, is the definitive programmer’s guide, tutorial, and reference for the world’s leading 3D API for real-time computer graphics, OpenGL 4. It covers subjects ranging from drawing your own pictures and dynamic graphics for web pages to rendering three-dimensional scenes and manipulating individual image pixels. I tried to keep things as easy as possible. Turn off your phones, and pay attention! 1. This is the perfect way to check out how your animation will look before doing a fully Rendered Animation. At find-more-books. The donation will go to Keith Whitwell, who has been optimizing Mesa to improve performance on 3d hardware. That is, (0, 0) is at the top-left corner and the bottom-right corner is at (600, 460). 0 A collection of detailed tutorials for game programming using SDL 2. Related Posts to : drawing a rotating sphere Drawing and rotating Tetrahedron with animation - Sphere by Lines - Draw a solid sphere using openGL - Adding lighting to a solid sphere - rotate sphere in a circle with light - Drawing a Triangler in php - Drawing a Polygon in php - php drawing a circle -. That is why I am asking for what file formats do support animation / can animations be stored in a separate file. 0 to perform an animated transition (scale up and rotate) of a 2D texture image. For example, IN the Nehe tutorial they are using glaux which I don't want to use in my program. Introduction OpenGL ES is a lightweight 2D/3D graphics library designed for embedded and mobile devices, based on the original OpenGL API. As far as the implementation of skeletal animation is concerned, we will Use OpenGL and C++, but the exporter which is used to export Data from COLLADA documents into my own Binary format (. Stack With Friends - Open Source physics game with level editor and level sharing feature for iOS, Android, Windows, Mac and Linux. I’ll use OpenGL 2. Open Source. Since there isn't any official OpenGL model format, you'll have to export your object into a format of your choice and then write a function in your OpenGL program to import the object. Explore the possibilities of RealityCapture. 0 Last tutorial we worked a bit more on meshes and we have also talked about adding colors to our mesh. Python Mode for Processing was chiefly developed by Jonathan Feinberg, with contributions from James Gilles and Ben Alkov. Carl Irwin explains how to achieve motion blur when rendering OpenGL from the viewport. The color fill examples cause a stack overflow, if you use it to fill a large object. No inline functions to make it more readable. cpp: #include "glut. These are a set of articles that teach WebGL from basic principles. Export layered panels to Photoshop, storyboards to PDF, still images and movies. Creating an OBJ file in Blender. Get the source and binary (64 bit) file from: OrbitCamera. Megabyte Softworks - a place where you can find OpenGL programming resources, game programming tutorials, articles about game programming, 3D math and much more!. GLUT needs a dll under windows, where LCL typically runs out of the box, but a LCL executable is bigger. Heatmap Animation Example; This example shows you how to animate your heatmap with time series data. 0 since it is much simpler and avoids complicating the core subject of the tutorial: GLUT. Animation is the result of an action that happens over time—for example, an object that pulsates, a light that fades, or a character that runs. Any OpenGL program for Windows has to take care of some window-dependent setup. 0 is relatively simple. Blend shapes, also called "blend keys", and morph target animation, is an alternative animation technique to hardware skinning. OpenGL makes it possible to produce a variety of visual effects including 3-D animations in perspective, richly colored objects with textures, and unusual lighting effects. Set of ten Delphi database tutorials ranging from a simple to a more complex ones. In this tutorial we will look at the top items all beginners with SketchUp need to know when starting out with SketchUp. This is important if we want the appearance smooth animation across varying platforms with differing performances. Find all books from Graham Sellers. To get the code working in an Eclipse project you need to set up a project with the lwjgl, lwjgl_utils,and PNGDecoder jars added to the build path, along with the relevant LWJGL natives. Note: Although this tutorial is written using C# and XNA, you should be able to use the same techniques and concepts in almost any game development environment. js – JavaScript 3D library submit project. Since images are 2D arrays of pixels, it will be bound to the GL_TEXTURE_2D target. You'll go from fresh project to spinning cube rendered using OpenGL and learn all the theory along the way!. dae file) that uses the skeletal animatio…. Cube OpenGL ES 2. 3+ OpenGL tutorials with clear examples. ROTATING_CUBE_DISPLAY_OPENGL is a C++ program which displays a cube with colored corners that slowly rotates. If you use a power of two for the time dimension, the sequence will loop smoothly as well. We usually start with some simpler examples and move towards advanced ones, but still the structure is more loose as with 'common' programming books. Instead of uploading a mat4 for each bone, upload a pair of quaternion and offset. Realtime: Academic Work. 0 Last tutorial we worked a bit more on meshes and we have also talked about adding colors to our mesh. NED Web Player Examples - Simple 2D Game made with Dead Deer. 0 Programming Guide. Ive been told to not put any drawing type code in the idle function itself, also opengl should realise when the function is idle and call its own idle function. This is a follow up to a previous tutorial dealing [included below, Bart]with the creation of a 'high pass filter' mask for the purpose of compositing motion blur on footage that has only 1 sample in render (as is the caseRead More. Chapter 8 - 2D sprite animation using OpenGL ES 2. The FreeVBCode site provides free Visual Basic code, examples, snippets, and articles on a variety of other topics as well. I tried to keep things as easy as possible. The Cube OpenGL ES 2. This tutorial won't introduce fancy visual effects in order to keep the code as simple as possible. Learn OpenGL. If you're running AdBlock, please consider whitelisting this site if you'd like to support LearnOpenGL; and no worries, I won't be mad if you don't :). You'll notice there's no spinning boxes. Therefore, there is a vast need to learn and understand the basics of OpenGL Programming. OpenGL is becoming the central medium for communication using 3D models, animations, and presentations. Doing animations in OpenGL This document explains how to do animations in OpenGL based on skeletal animation. It's from the program LINESW and draws 10 lines of varying widths. We again draw this ball at center (x, y + 5), or (x, y - 5) depending upon whether ball is moving down or up. com is a free OpenGL programming tutorial in online book format. Creating an OBJ file in Blender. Urho3D is a free lightweight, cross-platform 2D and 3D game engine implemented in C++ and released under the MIT license. Modern OpenGL 03 - Matrices, Depth Buffering, Animation 16 Dec, 2012 — Category: Modern OpenGL Series In this article, we will replace our immobile 2D triangle with a spinning 3D cube. I've provided a template for this tutorial that you'll use. For example a 3D editor needs a few OpenGL windows and the rest is a normal application using normal buttons, comboboxes, windows, modal windows, etc. that will update which frame we are currently on for the current animation. Hello everyone. "Animation" explains in general terms how to create pictures on the screen that move. The OpenGL ES Emulator is a library that maps OpenGL ES 3. It covers most vector and matrix topics needed to read college-level computer graphics text books. An interactive WebGL performance demo from IE11. We aren't using gl_Vertex, gl_MultiTexCoord0, ftransform(), gl_ProjectionModelViewMatrix, gl_Normal, etc. Using this information, we'll create an array of frame numbers so that we can use currentFrame to access the correct frame number. Examples lead you through the basic methods for producing 3D images and animation. The Advances in Real-Time Rendering SIGGRAPH course notes for the past few years are available for download, with talks discussing many areas. Unity’s Animation features include retargetable animations, full control of animation weights at runtime, event calling from within the animation playback, sophisticated state machine The set of states in an Animator Controller that a character or animated GameObject can be in, along with a set of transitions between those states and a variable to remember the current state. in to get best opengl projects and tutorials. Then change the texture to use for the quad at some set interval to the next frame of the animation. FERN_OPENGL, a C++ program which uses OpenGL to display the Barnsley fractal fern. OpenGL program:- #include # Android Location, Address and Distance Tutorial with Example. The example has a mode using OpenGL stenciling to avoid drawing the reflection not on the top of the floor. PlayOnce - The animation will only be played one time through DisableUponCompletion - The objects renderer will be disabled when the animation is completed EnableEvents - Enable this if you want an event fired when the animation is completed PlayOnEnable - The animation will begin playing when the object is enabled. The Update function has the parameter of deltaTime passed to it, which tells the function how much time has passed since the last frame has been rendered. It's possible to animate properties of primitives directly, but it's typically easier to animate transformations that change the position or appearance of models. To counteract that, the code in the tutorial will use flipped Y coordinates for texture coordinates from now on. Other Downloads. Feel free to contact us for any question, remark, bug report, or other : [email protected] [/QUOTE] Yes, I know. Vidal 2 nd September 2014. main — access the clipboard: pygame. Set of ten Delphi database tutorials ranging from a simple to a more complex ones. Animation is the result of an action that happens over time—for example, an object that pulsates, a light that fades, or a character that runs. OpenGL; android_page_curl An example application for creating page curl/flip effect on Android using OpenGL ES. After opengl 2. Hi there! LÖVE is an *awesome* framework you can use to make 2D games in Lua. In this article, we will learn how to setup a OpenGL application easily thanks to glfw, with a simple animation simulating a small bouncing ball. There are numerous ways to write code and there is always. Tutorial 6 : The Cute Dragon. For animation, an idle. I have a game defined in OpenGL, and static models defined in Blender, exported to OBJ, loaded with Assimp. Here's what we're going to cover: The difference between using vertex buffer objects only, and using vertex buffer objects together with index buffer objects. You can think of them as kind of a macro for OpenGL commands that you name, record and call at some point in your game. The example has a mode using OpenGL stenciling to avoid drawing the reflection not on the top of the floor. 3+ OpenGL tutorials with clear examples. [/QUOTE] Yes, I know. Example 2-17 is a slight modification of Example 2-16 which recursively subdivides the triangles to the proper depth. Lines always draw in front of faces when at the same location on the plane of the monitor. In this WebGL example, we create a canvas and within it render a rotating square using WebGL. Lesson 51 SDL and Modern OpenGL: SDL 2. It does not use the camera class (provided above), but many students have been able to use it as a good starting place for their first assignment. js – JavaScript 3D library submit project. Once again, you need to be careful with how your files are authored here. This OpenGL website contains OpenGL source code, tutorials, guides, demos and articles created to give the viewer basic as well as advanced knowledge concerning the OpenGL library. C++ - OpenGL - Using glRotatef() to animate shapes Submitted by Mi-K on Saturday, July 14, 2012 - 3:00pm Rotating a shape is fun, but rotating it with animation is really great. You will of course need to take care of looping and sequence order yourself. Multi-Subject. Today I completed a skinned skeletal animation tutorial, which is very helpful if you are just about to start with game development. Learn OpenGL. Dev-C++ gives the possibility to add existing files to a project, but we will in our tutorial restrict ourselves to the creation of a new empty source code file. ''' import kivy kivy. All that data represents the skinned mesh in a rest pose. Vidal 2 nd September 2014. In this lesson, you take another step forward into using OpenGL ES by learning how to add motion to a shape with rotation. OpenGL, Math, Physics, Game Design and more. Also demonstrates palette management for both RGB and Color Index modes and general strategies for message handling. Using OpenGL with SWT. Processing is a flexible software sketchbook and a language for learning how to code within the context of the visual arts. Viagra Meilleur. The Independent Qt Tutorial is an on-line book aiming to cover most topics involved in the process of developing professional quality Qt applications. DNALC animations feature stunning visualizations of cellular and molecular processes. OpenGL / GLUT Tutorial :: Basic Window Initialization. 3 (use Code :: Blocks with MinGW 7. DirectX Part 4: Loading FBX Models 10 Replies “Hey Ben”, you say, “these articles on DirectX are great!” (I know. In this lesson, you take another step forward into using OpenGL ES by learning how to add motion to a shape with rotation. scrap_clipboard. Learn OpenGL. Creating an Example This tutorial is a continuation of the previous turotial for QGraphicsView and QGraphicsScene and Customizing Items by inheriting QGraphicsItem. To solve it I took animation duration not from animation node, but from the last frame of the animation. NOTE I've tweaked the framework a little. 2 ] and EGL [ 1. Welcome to my humble attempt to facilitate a well-developed teaching platform for the graphics API called OpenGL. So, the last transform comes first and the first transform occurs last in. OpenGL is widely used in CAD, virtual reality, scientific visualization, and video games, where it is particularly useful for game developers who benefit from its hardware-accelerated rendering and advanced programmable pipeline. This code is useful for programmers working with a new device (such as a virtual reality head mounted display: VR HMD) for the first time, or for. But every (not that many btw) tutorial focus on the idea behind it. Chapter 8 - 2D sprite animation using OpenGL ES 2. Designing An Object Oriented Animation Engine By Yatin S. active for the OpenGL commands) when it is associated to a wxGLCanvas. This example provides a simple illustration of color animation with WebGL, as well as user interaction. From Wikibooks, open books for an open world Our triangle animation is fun, but we're learning OpenGL to see 3D. VMD Developer: John E. Firstin a newabout implementing skeletal animation using OpenGL!\r \r In thisI give you an overview of the entire animation system and explain some of the concepts behind animating a model. For this tutorial we'll be starting using the OpenGL 2. Whether you are trying to learn OpenGL for academic purposes, to pursue a career or simply looking for a hobby, this site will teach you the basics, the intermediate and all the advanced knowledge using modern (core-profile) OpenGL. keyboardAndMouse Shows how to customize your keyboard and mouse bindings. Drawing teapot using OpenGL. Android examples (example source code) Organized by topic. A great resource to learn modern OpenGL aimed at beginners. 0 since it is much simpler and avoids complicating the core subject of the tutorial: GLUT. scrap_clipboard. In your renderer, create another transformation matrix (a rotation matrix) and then combine it with your projection and camera view transformation matrices: Kotlin private val mRotationMatrix = FloatArray(16) override fun onDrawFrame(gl: GL10). When the drawing is complete, the two buffers are swapped so that the one that was being viewed is now used for drawing. 1,animal,1,animated,1,animation,9,Antonis. It can be used to create rich user interfaces, games, animations, multimedia applications or various special effects. PixiJS - The HTML5 Creation Engine. We will do this by adding a left, back, and right side to the triangle, and a left, right, back, top and bottom to the square. Any OpenGL program for Windows has to take care of some window-dependent setup. I have started a new updated serie of tutorials on OpenGL ES 2. 3rd Party Rendering Engines. Your game is yours, down to the last line of engine code. All that data represents the skinned mesh in a rest pose. We have an OpenGL window with a white triangle. Basic Animation Frame. these are 2 openGL examples if you need more REM's ask one whit a rotating color cube one whit a animated robot [ example avatar animation ] this version's don't have material's + light's + textures. 1’s powerful programmable pipeline, vertex and fragment shaders, and advanced buffers. From a programming perspective, there are several methods that can be used to create an OpenGL® animation. Example of menu, Circle, ellipse, line, point examples 6. (Note: This is not a tutorial on the math behind the transformations being done. 03/30/2017; 2 minutes to read +6; In this article. But underneath they are just complex algorithms updating and drawing different objects. wxGLCanvas is a class for displaying OpenGL graphics. In the upcoming tutorials well have a much more detailed look at the various parts of the system, including all the code and maths thats involved. Now we want to create our first OpenGL window. openglprojects. History serves many purposes, but one of its more important functions is to provide us with a reference point so that we may see how far we’ve traveled. 5 ], ES [ 1. Here is a simple morph target animation technique that stores the vertex positions of the morph targets in the original mesh using vertex attribute arrays (glVertexAttribPointer in OpenGL). The demo shows the use of VBOs with the GL_STATIC_DRAW mode and the box deformation is performed by a GLSL shader. [/QUOTE] Yes, I know. To draw the model at a particular time, we'll take the two frames nearest to the particular time and take a weighted average of the vertices' positions; that is, we'll interpolate between the two frames. Next tutorial will show how to create little planetary system. OpenGL 3D skinnable MP3 player that exists outside of 2D windows OpenGL 3D skinnable MP3 player that exists outside of 2D windows. The repository currently includes 82 sample applications, most of which are featured or described in the book, or were used to generate the screenshots shown in the book. cpp A static clock-like object, include circle and line. You will of course need to take care of looping and sequence order yourself. The first thing we must do is to tell GLUT that when the application is idle, the render function should be called. Resolume Avenue VJ Software. an overcast day. No inline functions to make it more readable. org landing page … The Industry’s Foundation for High Performance Graphics from games to virtual reality, mobile phones to supercomputers … a big player for game developers for desktop, web, and mobile platforms. I've found. This guide focuses on using the Windows OpenGL API directly. 1D, 2D, 3D and cube map textures. It has the power of injecting energy and emotions into the most seemingly inanimate objects. Download All Sample Code as a single Zip file. ) I'm sure plenty of other people have used this technique, but since I haven't seen any tutorials on it, I thought I'd write one myself. Introduction: Hi I am waZim and welcome to my first tutorial(s) on Skeletal Animation. Though the code of our example program is changed drastically, the graphical result looks still the same except for the text "Python": You can understand the benefit of our code changes, if you change for example the height of the canvas to 190 and the width to 90 and modify the ratio for the first box to 0. wxGLCanvas is a class for displaying OpenGL graphics. VPython makes it easy to create navigable 3D displays and animations, even for those with limited programming experience. Multi-Subject. In this lesson, we'll learn about index buffer objects, and go over a practical example of how to use them. Megabyte Softworks - a place where you can find OpenGL programming resources, game programming tutorials, articles about game programming, 3D math and much more!. And the remaining tutorials use md2 which is not supported by Blender. Simple animation examples¶ Two animations where the first is a random walk plot and the second is an image animation. This time we put the WebGL function calls within a timer event handler. It covers the basics of creating a screensaver for Windows systems (95, 98, NT, 2000, and XP). We have the following topics covered:. OpenGL ® SuperBible, Fourth Edition, begins by illuminating the core techniques of “classic” OpenGL graphics programming, from drawing in space to geometric transformations, from lighting to texture mapping. If the depth value is 0, no subdivisions are performed, and the triangle is drawn as is. A click event handler additionally enables the basic user. There are a couple of ways to do that: Native code, used for large applications where you need to control every option available. My goal is to play my "gun aim" animation until I have reached the last clip of the animation, and then to not call that animation again so that I freeze the gun aiming in it's last animation frame until I have released the aim button. 1) , and then restart the emulator. A detail description about the application of animation in openGL with examples. Our animation consists of a single line segment. Community; Mailing list and blog. openglprojects. 5) which uses lower level API's to give you more flexibility. scrap_clipboard. This is a non-exhaustive list of popular OpenGL-based programs. This code is useful for programmers working with a new device (such as a virtual reality head mounted display: VR HMD) for the first time, or for. button import Button. Though the code of our example program is changed drastically, the graphical result looks still the same except for the text "Python": You can understand the benefit of our code changes, if you change for example the height of the canvas to 190 and the width to 90 and modify the ratio for the first box to 0. You can compile the program with nim c nim_opengl_shader_example. 7' ) from kivy. It shows how to handle polygon geometries efficiently and how to write simple vertex and fragment shader for programmable graphics pipeline. Our animation consists of a single line segment. One buffer is displayed while the other buffer is being drawn into. Mac OS X and Windows OpenGL 3D Engine tools, content and code to create games and applications. All video and text tutorials are free. Find all books from Graham Sellers. Former POV-Ray developer and team coordinator Chris Young has been working with 3D printing in recent times and wanted to be able to convert a POV-Ray scene into something that he could touch & feel. We will go step by step in building a complex OpenGL program. Toolkits based on cairo. D4D(Stereo) mode. That's a lot of code! Spend some time studying the example, practice a bit, and then we will proceed to lesson 7, where more of this code will be explained. Here is a simple morph target animation technique that stores the vertex positions of the morph targets in the original mesh using vertex attribute arrays (glVertexAttribPointer in OpenGL). This is the snippet Animation Using OpenGL Example: Mechanical Hand on FreeVBCode. OPENGL examples are available in a C version and a C++ version. A Smooth Animation.