What is portal plotting?
Portal rendering is a computer graphics technique used in video games to reduce the amount of pixels rendered at a time. To achieve this goal, most games are composed of sections and the user can only see a certain area like the room. These sections are commonly small and limited, because it was easier to program, but portal rendering can also be used with external landscapes if the programmer takes into account the user's vision. The main reason for using this drawing technique is to improve performance by requiring less memory. While problems tend to be minimal and mostly affect older games, loading problems may occur if the user moves unexpectedly.
When plotting the portal, it often divided the world of play into many portals or sections. When someone is in a section, the programmer knows that the other sections will not be visible and therefore may not be drawn. This is commonly done by making rooms, each room used as a sectaion.
To be rendered withThey say, most sections are limited by clearly visible walls. If limited space is used, it makes portal rendering easier, because the programmer has to do few estimates of what the user will be able to see. Some games are out of the landscape without walls. In this case, the programmer must take into account the user field of view, so only the landscape can be displayed immediately.
The main reason to use portal rendering is that it immediately limits the amount of memory. For example, if a game map is not divided, the game must portray all pixels at the same time. This requires a lot of memory, which means that the performance of the game is likely to suffer from delay and other problems. The user is usually not close enough to see another section, so this delayed rendering usually does not cause any problems.
Although there are usually no problems with portal rendering, it is possible that someEré pixels will not load correctly unless the user moves as expected. For example, if the programmer assumes that the user does not go to the previous section and he or she, the game can take a few seconds to load the section. There may be a wall or a small area that seems to be black for a second, but it rarely affects the performance of the game.