Webgl Interview Questions with Answers
Question: 1. What Is Webgl?
Answer:
WebGL stands for Web Graphics Library. It is a JavaScript API this is used for rendering 3D image in any like minded internet browser. It is written in JavaScript.
Question: 2. Who Is The Developer Of Webgl?
Answer:
Vladimir Vukicevic is the developer of WbGL.
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Question: three. What Are The Advantages Of Webgl?
Answer:
WebGL benefits are:
It is JavaScript programming.
Increasing guide with mobile browsers.
It is open supply.
No want for collection Automatic memory management.
It is simple to installation.
Question: 4. What Is Opengl?
Answer:
OpenGl stands for Open Graphics Library. It is move language and pass platform API for 2D and 3D Graphics.
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Question: 5. What Is Rendering And Its Type?
Answer:
Rendering is the process of producing an photograph from a model via the use of laptop program.
There are two sorts of rendering:
Software Rending
Hardware Rending
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Question: 6. What Is Html5 Canvas In Webgl?
Answer:
In WebGL, HTML5
Syntax:
In WebGL, HTML5
Syntax:
1.
Question: 7. How Can We Create A Canvas Program?
Answer:
We can create a Canvas application by the use of following codes:
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Question: eight. What Are Vertex Shader And Its Task?
Answer:
Vertex shader is this system code this is used to transport the geometry from one vicinity to every other. It handles the information of each vertex.
The following tasks are:
Vertex transformation
Normal transformation and normalization
Texture coordinate era
Texture coordinate transformation
Lighting
Color fabric application
Question: 9. What Are The Drawing Modes Supported By Webgl?
Answer:
WebGL supported following drawing modes that are indexed in desk:
Mode Description
gl.POINTS It is used to draw a series of points.
Gl.LINES It is used to draw a sequence of unconnected line segments.
Gl.LINE_STRIP It is used to draw a sequence of linked line segments.
Gl.LINE_LOOP It is used to attract a sequence of related line segments.
It also joins the primary and ultimate vertices.
Gl.TRIANGLES It is used to draw a chain of separate triangles.
Gl.TRIANGLE_STRIP It is used to draw a chain of connected triangles in strip fashion.
Gl.TRIANGLE_FAN It is used to draw a sequence of connected triangles sharing the primary vertex.
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Question: 10. What Is The Use Of Translation And Its Step To Translate A Triangle In Webgl?
Answer:
In WebGL, Translation is used to move a triangle (any object) on the XYZ plane.
There are following steps to translate a Triangle.
Prepare the Canvas and Get the WebGL Rendering Context.
Define the Geometry and Store it in the Buffer Objects.
Create and Compile the Shader Programs.
Create and Compile the Shader Programs.