Rendering times for individual frames may vary from a few seconds to several days for complex scenes. Non-real-time rendering enables the leveraging of limited processing power in order to obtain higher image quality. Non-real-time Ĭomputer-generated image (CGI) created by Gilles TranĪnimations for non-interactive media, such as feature films and video, can take much more time to render. Real-time rendering is often polygonal and aided by the computer's GPU. The rapid increase in computer processing power has allowed a progressively higher degree of realism even for real-time rendering, including techniques such as HDR rendering. This is the basic method employed in games, interactive worlds and VRML.

These effects can lend an element of realism to a scene, even if the effect is merely a simulated artifact of a camera. These are attempts to simulate visual phenomena resulting from the optical characteristics of cameras and of the human eye. Rendering software may simulate such visual effects as lens flares, depth of field or motion blur. In fact, exploitations can be applied in the way the eye 'perceives' the world, and as a result, the final image presented is not necessarily that of the real world, but one close enough for the human eye to tolerate.

The primary goal is to achieve an as high as possible degree of photorealism at an acceptable minimum rendering speed (usually 24 frames per second, as that is the minimum the human eye needs to see to successfully create the illusion of movement). 'in one frame': In the case of a 30 frame-per-second animation, a frame encompasses one 30th of a second). In real-time rendering, the goal is to show as much information as possible as the eye can process in a fraction of a second (a.k.a.

Rendering for interactive media, such as games and simulations, is calculated and displayed in real time, at rates of approximately 20 to 120 frames per second. A screenshot from Second Life, a 2003 online virtual world which renders frames in real-time

3ds render