Top 100+ Vvvv.js Interview Questions And Answers
Question 1. What Is Vvvv.Js?
Answer :
VVVV.Js is a Visual Programming Framework, extremely good toolkit and used for growing wealthy statistics visualisation, advanced consumer interfaces, and video games. It is completely works for your browsers.
David Gann is developing VVVV.Js rendering /game engine for developing web and cell apps.
VVVV.Js is a hybrid visible/textual live-programming environment for smooth prototyping and development.
VVVV.Js is free for non-business use, commercial use calls for a license.
VVVV.Js is a Visual Programming Framework for High-End JavaScript/WebGL Application Development.
Question 2. Why Are The Nodes Called "dx9" Or "ex9" Nodes, When They Are Actually Webgl?
Answer :
They are well matched with conventional VVVV. There is a feature within the making which interprets phrases from traditional VVVV to VVVV.Js and vice versa, however in the interim we simply ought to play along.
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Question 3. What Are The Great Features Of Vvvv.Js?
Answer :
Graphics and DOM Interface
Physical Based Rendering
Full glTF man or woman import workflow
Instancing
IPSF guide for fast prototyping of distributed computing
Deferred consequences
Collision detection
Terrain rendering
Multi-texturing
Character animation
Particles
Derivative maps and parallax occlusion mapping
Node units for HTML and CSS visible programming
Web Audio API nodes
Server-aspect nodes for networking programs
Question 4. How To Started Vvvv.Js?
Answer :
The 4 steps involve to commenced VVVV.Js:
Download VVVV.Js and extract it. Add this js for your challenge script folder.
Create a new patch
Include VVVV.Js and the mypatch.V4p file for your internet site
Launch the Editor through appending
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Question five. I Appended #edit/some_patch_name.V4p To The Url To Open The Patch Editor, But Nothing Happens Why?
Answer :
There are two commonplace issues whilst trying to open the editor:
Pop united states of americaare blocked, or the document name inside the URL does not fit the exact file call of the patch. Note, that it needs to be exactly similar to you exact it inside the <script language="VVVV"> tag or in the new VVVV.Core.Patch(...) call, together with leading slashes.
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Question 6. Why Vvvv.Js Does Not Load Correctly And I Get ... Javascript Errors?
Answer :
VVVV.Js has to dynamically load scripts, patches, shader files, and many others., so, with a purpose to run a website containing VVVV.Js from your pc you have options:
Run it from a webserver environment (like e.G. XAMPP for Windows), so you can load it thru e.G. Http://localhost/my_visualization/index.Html
Launch Chrome with the --allow-file-get admission to-from-documents choice. This disables the mentioned security features, so websites can get right of entry to files through file://.... But be careful, as this influences all web sites you view with this Chrome example. Read greater approximately the way to begin Chrome with this flag [here](http://www.Chrome-allow-file-get admission to-from-report.Com/)
Question 7. I Can't Connect The Quad Node (or Some Other Node) To The Renderer Node, As It's Shown In That Example?
Answer :
There are exceptional Renderer nodes:
Renderer (EX9) for WebGL graphics and Renderer (Canvas VVVV.Js) for 2D Canvas portraits. You can only join the according EX9 and Canvas VVVV.Js nodes to it. Unfortunately, you cannot mix the ones at will. However, you may use the output of a Renderer (Canvas VVVV.Js) as a texture in a Renderer (EX9), if that enables.
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Question eight. I Connected A Webgl/ex9 Node To Two Renders, But It Only Shows Up In One?
Answer :
Each WebGL ressource can best be used in one render context. At the contemporary state, you have to replica nodes to have the identical geometry in one-of-a-kind renderers.
Question 9. I Can't Find Phongdirectional Or Any Other Shader Nodes In The List Of Available Nodes?
Answer :
In comparison to the classic computer VVVV, VVVV.Js can't search the document system for shader documents and populate the node listing based on that. Instead, you have to input the whole document name (e.G. PhongDirectional.Fx) whilst growing a new node, and hit input. Only then VVVV.Js can appearance in the results folder if it unearths that shader node. Once a patch consists of a selected shader node, VVVV.Js is aware about it, and additionally lists it within the listing of to be had nodes.
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Question 10. I Am Trying To Load A Webgl Texture, But It Does Not Show Up,why?
Answer :
Unfortunately, photograph documents cannot have arbitrary length for you to paintings with WebGL. Instead, dimensions should be powers of two, like 128px, 256px, 512px, 1024px, and so on.
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Question eleven. When Should I Use The Ex9/webgl Nodes, And When The Canvas Vvvv.Js Nodes?
Answer :
With the EX9/WebGL nodes you can create hardware increased three-D pics and employ shader effects. The drawback is, that there may be a full-size threat that the customers' browser does no longer guide WebGL.
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Question 12. How Do I Create A New Patch?
Answer :
Just create a brand new empty textual content file with a .V4p extension and include it into your internet site. It will do not anything first, however you may launch an editor on pinnacle of it and add the logic.
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Question thirteen. I Can't Use The Image File Http://somehost.Com/some_image.Jpg As Webgl Texture?
Answer :
For safety motives, WebGL only lets in you to load image documents from the host the site comes from. If you need to show external photo files via WebGL, you could set up a script on your server backend, which proxies external documents, and inform VVVV.Js approximately this via putting the VVVV.ImageProxy variable.
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