Leonar3Do

Key takeaways

Leonar3Do belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Leonar3Do to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Leonar3Do from memory before moving on to harder problems.

Reference excerpt

Leonar3Do is an integrated software and hardware platform for creating three-dimensional VR (virtual reality) environments on desktop computers and other devices, allowing creation, manipulation, and analysis of three-dimensional objects in a three-dimensional space. Leonar3Do was invented by Daniel Rátai in Budapest, Hungary. Products and applications based on the Leonar3Do platform are developed and marketed by Leonar3Do International Inc.

Technology and structure The Leonar3Do has the following main hardware components:

The spatial input device, known as the "bird", as a replacement for the traditional mouse. The bird has six degrees of movement, allowing users to grab, move and rotate their 3D model or their space Three-dimensional glasses with built-in infra-LEDs for the detection of the eyeglasses’ position Three tracking sensors, placed on the top of the display Central panel for bi-directional communication The three sensors' task is to track the position of both the 3D glasses and the input device (bird) and send this information to the central unit. The central unit transmits the received data to the computer and the Leonar3Do system software, which generates, manages, and displays the virtual reality environment produced by the data processed. The result is a complete 3D VR environment, where the user can view the virtual object from any angle. Leonar3Do also has a complete software development kit, which allows the development of new applications based on the Leonar3Do platform. With Leonar3Do's modeling software, users can give physical attributes to virtual objects like changeable mass, gravity, impeccability, and rebounding.

Products and additional applications

Leonar3Do hardware kit This kit contains the following components:

central panel 3D glasses bird (the spatial input device) the 3 sensors AVC (Analog Video Controller) DVC (Digital Video Controller) Leonar3Do Software and Operating Instructions DVD

Products Leopoly: Application built on the Leonar3Do platform focusing on online co-creation, sculpting, and 3D model sharing. Vimensio: Bundle of Leonar3Do hardware elements and Vimensio educational software built on the Leonar3Do platform, with a main focus on primary, secondary, and higher education. Users can create VR environments, simulations or new 3D VR applications for effective studying. Vimensio Edit: Gives users the ability to create three-dimensional educational applications without the use of programming languages. Vimensio Play: A cross-platform application system that allows the presentation of already created three-dimensional content.

Software applications Software applications require a 3D monitor and a Leonar3Do Professional Edition Kit or a Vimensio Kit, including the Leonar3Do system software and hardware elements.

LeoWorld: 3D VR animation and modelling software allowing for real-time polygon optimization, lighting modification, and 3D coloring. The software forms the geometry of the object in real-time as the polygons are rearranged. Users can also give physical attributes to the 3D virtual objects like changeable mass, gravity, impeccability, and rebounding. LeoBrush: Airbrush simulation software which allows for the bird to be used as a 3D airbrush. Leonar3Do for 3D Designers and Artists: Software bundle containing both LeoWorld and LeoBrush. LeoCapture: Application allowing for the 3D VR work process to be captured in 3D and then represented in a flat 2D environment without a 3D camera and 3D player, by creating video clips with a traditional web camera. LeoConf Software: Multi-user version of Leonar3Do allowing for 3D demonstrations or presentations to be projected in real time to an audience. LeoGomoku: 3D VR version of Tic-tac-toe. SDK Software: Application for developing Leonar3Do-based software in a C++ or OpenGL working environment, including the application programming interface, the sample files, the source code, and one year of developer support. Autodesk Maya plug-in: Plug-in for the Leonar3Do platform allowing for small changes to be carried out more precisely by manipulating the vertex, polygon, and face surfaces. Unity game engine plug-in: Plug-in for the Unity game engine allowing for 3D VR game development.

History In his childhood, Daniel Rátai was interested in the construction of spatial 3D drawing and wanted to break away from the traditional 2D drawing and modelling method. This interest lead to the creation of the first edition of Leonar3Do, which won him the second prize in the National High School Competition in Innovation of 2004. In 2005, the Hungarian Association for Innovation asked Daniel to represent Hungary at the finals of the Intel International Science and Engineering Fair (Intel ISEF) in May of 2005, where Daniel Rátai and the Leonar3Do project were awarded six first prizes. In the same year, Daniel founded 3D For All Ltd., now Leonar3Do International Inc. Patronage was taken over the Leonar3Do education project by the Conference of Hungarian Rectors in December 2009, and the development team and company achieved their primary objective of turning Daniel Rátai's invention into a finished 3D VR product in 2010. In 2011, venture capital was invested in the business by PortfoLion, enabling the company to make further developments and to start the mass-production of the Leonar3Do VR kit.

Awards 2005: Daniel Rátai and his Leonar3Do project were awarded with the following six first prizes at the International Science and Engineering Fair: First Place: IEEE Computer Society Award First Place: Computer Science Award—Presented by Intel Foundation First Place: Patent and Trademark Office (PTO) Society Award Best of Category: Computer Science-Presented by Intel Foundation The Intel Foundation Achievement Award Seaborg's SIYSS Award 2005: The Tech Award (San Jose, Tech Museum of Innovation) In the category of education, the Leonar3Do project was awarded to be among the five most significant innovations of the world. This Tech Award was the first to be was won by a Hungarian project. 2010: The Intelius International Entrepreneurship Award Archived 2016-03-03 at the Wayback Machine was won by the Leonar3Do team at Kairos Society Global Summit. 2012: Leonar3Do was awarded with the "Best of CES" award by Vanquard Marketing at (Consumer Electronics Show Archived 2010-02-08 at the Wayback Machine).

References

External links The Verge / Ellis Hamburger: Sculpting in virtual reality: meet Leonar3Do (hands-on)

Illustrations

Worked examples

Example 1 — a first encounter with Leonar3Do

Start with the simplest possible case. Write down what Leonar3Do claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Leonar3Do before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Leonar3Do ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Leonar3Do

In research: Leonar3Do appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Leonar3Do in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Leonar3Do is common in secondary-school and first-year university syllabi. It links to neighbouring topics Hungarian inventions, Virtual reality, so understanding it makes those chapters shorter.
In everyday life: Look for Leonar3Do outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

How to study Leonar3Do in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Leonar3Do means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Leonar3Do out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Leonar3Do in simple terms?

Leonar3Do is an integrated software and hardware platform for creating three-dimensional VR (virtual reality) environments on desktop computers and other devices, allowing creation, manipulation, and analysis of three-dimensional objects in a three-dimensional space. Leonar3Do was invented by Danie…

Why does Leonar3Do matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Leonar3Do?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Leonar3Do.