The reflection is actually the transformation that produces a mirror image of an object. For this use some angles and lines of reflection.
Transformation is the process of introducing changes in the shape size and orientation of the object using scaling rotation reflection shearing & translation etc.
3. Tell me what Is Persistence?
The time it takes the emitted light from the screen to decay one tenth of its original intensity is called as persistence.
4. Tell me what are the characteristics of Unity3D?
Characteristics of Unity is
☛ It is a multi-platform game engine with features like ( 3D objects, physics, animation, scripting, lighting etc.)
☛ Accompanying script editor
☛ MonoDevelop (win/mac)
☛ It can also use Visual Studio (Windows)
☛ 3D terrain editor
☛ 3D object animation manager
☛ GUI System
☛ Many platforms executable exporter Web player/ Android/Native application/Wii
☛ In Unity 3D, you can assemble art and assets into scenes and environments like adding special effects, physics and animation, lighting, etc.
5. What they're really asking is “How long do you plan to stay with our company?”
You're probably aware that hiring and training new employees is where companies spend the bulk of their money. Therefore, they try to reduce the number of times they have to do it. Convince your prospective employer that you're there for the duration and you'll be ahead of the game.
Explain how this position fits into your long-term career goals and that you're not just settling for this job until something better comes along. Explain what you find challenging about the role as well as where you believe your experience can be an asset.
6. Define Random And Raster Scan Displays?
Random scan is a method in which display is made by electronic beam, which is directed only to the points or parts of the screen where picture is to be drawn.
The Raster scan system is a scanning technique in which the electron sweep from top to bottom and from left to right. The intensity is turned on or off to light and un-light the pixel.
7. What Do You Mean By Emissive And Non-emissive Displays?
The emissive display converts electrical energy into light energy. The plasma panels, thin film electro-luminescent displays are the examples. The Non-emissive are optical effects to convert the sunlight or light from any other source to graphic form. Liquid crystal display is an example.
The shearing transformation actually slants the object along the X direction or the Y direction as required. ie; this transformation slants the shape of an object along a required plane.
9. What Is Vertical Retrace Of The Electron Beam?
In raster scan display, at the end of one frame, the electron beam returns to the left top corner of the screen to start the next frame.
10. What Are The Various Attributes Of A Line?
The line type, width and color are the attributes of the line. The line type include solid line, dashed lines, and dotted lines.
11. List Out The Merits And Demerits Of Penetration Techniques?
The merits and demerits of the Penetration techniques areas follows. It is an inexpensive technique. It has only four colors. The quality of the picture is not good when it is compared to other techniques. It can display color scans in monitors. Poor limitation etc.
12. Write The Difference Between Vector And Raster Graphics?
Following are the differences between vector and raster graphics-
☛ 1. Raster or Bitmap images are resolution dependent because of this its not possible to increase or decrease their size without sacrificing on image quality.
☛ While vector based image are not dependent on resolution. The size of vector image image can be increased or decreased without affecting image quality.
☛ 2. Raster or bitmap images are always rectangular in shape, Vector image, however, can have any shape.
☛ 3. Unlike raster image, vector image can't be use for realistic images. This is because vector images are made up of solid color areas and mathematical gradients, so they can't be used to show continuous tones of a colors in a natural photograph.
13. Write Short Notes On Lines?
A line is of infinite extent can be defined by an angle of slope q and one point on the line P=P(x,y). This can also be defined as y=mx+C where C is the Y intercept.
14. What Is Horizontal Retrace Of The Electron Beam?
In raster scan display, the electron beam return to the left of the screen after refreshing each scan line, is called horizontal retrace of the electron beam.
15. List Out The Merits And Demerits Of Dvst?
The merits and demerits of direct view storage tubes[DVST] are as follows. It has a flat screen. Refreshing of screen is not required. Selective or part erasing of screen is not possible. It has poor contrast Performance is inferior to the refresh CRT.
16. Tell me what is an Unity3D file and how can you open a unity3d file?
A Unity3D files are scene web player files created by Unity; an application used to develop 3D games. These files consist of all assets and other game data in a single archive, and are used to enable gameplay within a browser that has the Unity Web Player Plugin. The assets within a 3D unity file are saved in a proprietary closed format.
17. What Is Scaling In Computer Graphics?
In computer graphic, image scaling is the process of resizing a digital image. scaling is a non-trivial process that involves a trade off between efficiency, smoothness and sharpness. With bitmap graphics, as the size of an image is reduced or enlarged, the pixels which comprise the image become increasingly visible, making the image appear “soft” if pixels are averaged, or jagged if not.
The process of adjusting intensities of the pixels along the line to minimize the effect of aliasing is called ant aliasing.
19. Differentiate Plasma Panel Display And Thin Film Electroluminescent Display?
In plasma panel display, the region between two glass plates is filled with neon gas. In thin film electroluminescent display, the region between two glasses plates are filled with phosphor, such as zinc sulphide doped with manganese.
20. Tell me what Is Scan Conversion?
A major task of the display processor is digitizing a picture definition given in an application program into a set of pixel-intensity values for storage in the frame buffer. This digitization process is called scan conversion.
21. What Is Meant By Scan Code?
When a key is pressed on the keyboard, the keyboard controller places a code carry to the key pressed into a part of the memory called as the keyboard buffer. This code is called as the scan code.
22. What Is The Difference Between Impact And Non-impact Printers?
Impact printer press formed character faces against an inked ribbon on to the paper. A line printer and dot-matrix printer are examples. on-impact printer and plotters use Laser techniques, inkjet sprays, Xerographic process, electrostatic methods and electro thermal methods to get images onto the papers. Examples are: Inkjet/Laser printers.
Unity 3D is a powerful cross-platform and fully integrated development engine which gives out-of-box functionality to create games and other interactive 3D content.
24. Short Notes On Video Controller?
Video controller is used to control the operation of the display device. A fixed area of the system is reserved for the frame buffer, and the video controller is given direct access to the frame buffer memory.
25. Write The Two Techniques For Producing Color Displays With A Crt?
Beam penetration method, shadow mask method.
In the CRT, heat is applied to the cathode by directing a current through a coil of wire, is called filament
27. Where The Video Controller Is Used?
A special purpose processor, which is used to control the operation of the display device, is known as video controller or display controller.
A 2-D rotation is done by repositioning the coordinates along a circular path, in the x-y plane by making an angle with the axes. The transformation is given by:X| = r cos (q + f) and Y| = r sin (q + f).
29. Tell me in Unity 3D how can you hide gameobject?
To hide gameobject in Unity 3D, you have to use the code
gameObject.transform.SetActive(false);
30. Tell me what is the function of Inspector in Unity 3D?
The inspector is a context-sensitive panel, where you can adjust the position, scale and rotation of Game Objects listed in Hierarchy panel.
31. What Are The Hardware Devices Used For Computer Graphics?
The hardwares devices used for the computer graphics are
Input Devices: Keyboard, Mouse, Data tablet, Scanner, Light pen, Touch screen, Joystick
Output Devices: Raster Devices- CRT, LCD, LED, Plasma screens, Printers,Vector Devices- Plotters, Oscilloscopes
32. Tell Me What Is Computer Graphics?
The term computer graphics include almost every thing on computer that is not text or sound. It is an art of drawing pictures, lines. charts, etc. using computers with the help of programming. Or we can say that graphics is the representation and manipulation of image data by computer with the help from specialized software and hardware. Graphic designing is done using the various available softwares for computers which can produce the 3D images in the required shape and dimension. Computer graphics help us in getting the real display experiences.
33. Basic 3d graphics programmer interview questions:
☛ Example when you went above and beyond the call of duty.
☛ Have you done this kind of work before?
☛ Do you prefer to work independently or on a team?
☛ How long would you stay with our company?
☛ Do you think you are overqualified for this position?
34. Communication skills basd 3d graphics programmer interview questions:
☛ What do you think this position involves.
☛ Do you have the qualities and skills necessary to succeed in your career?
☛ What's most important to you in a new position?
☛ What major challenges and problems did you face?
☛ Describe a recent unpopular decision you made.
Talk about specific work related experience for the position you're interviewing for. Emphasize benefits to the company. Start with the present and tell why you are well qualified for the position.
35. Behavioral 3d graphics programmer interview questions:
☛ What do you like and dislike about the job we are discussing?
☛ Tell me about how you worked effectively under pressure.
☛ What kind of personality do you work best with and why?
☛ Has anything ever irritated you about people you've worked with?
☛ Give an example of a time you successfully worked on a team.
Never use any adjectives for these sort of 3d graphics programmer interview questions. Say something relevant to the objective line in the resume. Don't stress yourself with the idea of winning or losing.
