How many types of hidden surfaces are there?
We have discussed five different hidden surface algorithms: z-buffer, scan line, ray casting, depth sort, and bsp-tree. Two key ideas are applied to help increase the speed of these algorithms: sorting of edges by depth, and pixel coherence for depth and intensity.
How many types of hidden surface algorithm are Mcq?
| Q. | The types of hidden surface removal algorithm are |
|---|---|
| A. | Depth comparison, Z-buffer, back-face removal |
| B. | Scan line algorithm, priority algorithm |
| C. | BSP method, area subdivision method |
| D. | All of these |
How are hidden surfaces identified using depth sort algorithm in computer graphics?
To remove these parts to create a more realistic image, we must apply a hidden line or hidden surface algorithm to set of objects….Differentiate between Object space and Image space method.
| Object Space | Image Space |
|---|---|
| 2. Here surface visibility is determined. | 2. Here line visibility or point visibility is determined. |
What is the importance of removal of hidden surface?
The analogue for line rendering ishidden line removal. Hidden surface determination is necessary to render an image correctly, so that one may not view features hidden behind the model itself, allowing only the naturally viewable portion of the graphic to be visible.
Why do we need to remove the Hidden-surface?
When we view a picture containing non-transparent objects and surfaces, then we cannot see those objects from view which are behind from objects closer to eye. We must remove these hidden surfaces to get a realistic screen image. The identification and removal of these surfaces is called Hidden-surface problem.
Which surface algorithm is based on?
Discussion Forum
| Que. | Which surface algorithm is based on perspective depth? |
|---|---|
| b. | Z-buffer or depth-buffer algorithm |
| c. | subdivision method |
| d. | back-face removal |
| Answer:Z-buffer or depth-buffer algorithm |
What is visible surface?
What is visible Surface detection? When a picture that contains the non-transparent objects and surfaces are viewed, the objects that are behind the objects that are closer cannot be viewed. To obtain a realistic screen image, these hidden surfaces need to be removed.
