What is OpenGL® drawing?
"OpenGL® Drawing" is a general term that can be used to indicate that the application has been set to use the Open Graphics Library® libraries to draw on the display. It can also be used in programming to describe the use of various functions in the library to create elements in the scene. The OpenGL® drawing most often involves assembling points and lines into triangles, quads or other polygons to create recognizable objects or interfaces with which the user can see or communicate with them. Drawing OpenGL® can also be the final plot scene as it is displayed on a screen or other device.
In terms of programming, OpenGL® drawing is very similar to drawing on paper with a pen. Within OpenGL®, the type of virtual stylus that can be moved from one position to the next, but always remembers exactly where it is currently located. The stylus can be moved and reset, but can also be used to outline continuous sets of points.
One examples of using the drawer position brandIt is an object called the triangle strip. This is a sequence of triangles in which each shares the side with another triangle. The OpenGL® drawing functions are drawn point, followed by the other two to create a basic triangle. The other two points to which the virtual stylus moves will be connected and creates a second triangle. This process can be used to draw whole complicated objects by transition from point to point.
By using libraries or expansion of the utility, there are a number of OpenGL® drawing functions that can be used to simplify the construction of complex scenes. These functions can draw a cube, ball or other shape primitive and remove the need to laboriously generate the boiler code to draw the shape. Points that are only individual dots at a given location can be manipulated through the drawing features a raster image, such as photography, can be converted to three -dimensional (3D) coordinates.
After determining and handing over the geometry for the scene and transferringGraphic hardware helps the OpenGL® routine to draw the scene into the display device. When mathematical information describing the points, lines and surfaces of the scene is attracted to the monitor, the process is known as rasterization in which the image is created two -dimensional (2D), so they can be displayed. The resulting 2D rasterized image from 3D data can be called OpenGL® drawing.