Render Pass

A render pass is a dedicated pass with the rendering software to create a 3D scene, that concentrates on one specific aspect of that scene. Examples include textures, shadows, highlights, radiosity, and so on. In a still CG image, the time this takes does not matter. However, in real-time VR, when you may be re-rendering the scene ten or twenty times per second every second, there is not a great deal of time to allocate to each render pass.

Whilst multiple render passes are still advantageous in this environment, due to the different methods each concentrates on, real-time work is unlikely to have more than one or two passes at the current time.

See Also: Render Layer, LOD, 3D Rendering Engine, Render Fog, Clipping plane, Hider Algorithm , Reverse Painter's Algorithm

Below, we offer a selection of links from our resource databases which may match this term.

Beauty Pass Colour Pass Depth Map Depth Pass Diffuse Pass HDI HDRI High Dynamic Range Imaging

Highlight Pass Isotropic Shading Lighting Pass Reflection Pass Region Rendering Render Layer Render Pass

Shadow Pass Specular Pass Stroboscopic Z-Depth

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Six ways to build robots that do humans no harm
NewScientist reports on six hypothetical ways to make robotic beings that will not harm humans. Not that any of them are likely to come to pass.

The Adventures of Andre and Wally B
In 1984, there was a passive CG short film, created by the Lucasfilm Computer Graphics Project, which some years later became Pixar. It was one of the very first CG presentations ever made, and used a borrowed supercomputer - the Cray - to render.

AI researchers believe 'Rascals' can pass Turing test
Passing the Turing test -the holy grail of artificial intelligence, whereby a human conversing with a computer can't tell it's not human- may now be possible via VR with a Blue Gene supercomputer, according to AI experts at Rensselaer Polytechnic Institute.

What's in a name? ...a demotion for the darling concept of the real
Virtual always suggests unreal, or imaginary. A virtual entity can pass for, a real thing but is less than the real thing itself. Sounds like a nice statement. Are we really so sure its true?

Render Unto Caesar
Virtual worlds have shown themselves to have very real, and fairly powerful market forces when it comes to items from within them being traded openly on the internet. Time to stop arguing about the value of virtual, and start worrying about the reality of the virtual?

Pleasures of the Flesh #1: An Introduction
Finally someone says it; something we have all really known for years, but never admitted: "Being unaware of the world around you will not make you more creative or ensure originality. It will instead render your creations shallow, and your ideas uninformed." Make sure if you read nothing else today, you read this one!

Cranial Nerves
There are twelve cranial nerve pairings (making 24 nerves in total) which split out from the brain, and move to cover the needs of the cranium and face, rather than make their way down through the central spinal cord. These nerves are important to consider, as most are of critical importance to sensory data, yet do not pass through the central cord, and so cannot be intercepted at the same juncture.

A Sterile World
Smell is a sense often overlooked in a virtual world. Developers discount its importance, as a minor sense, when in truth we rely on it as an input channel to flesh out the world around us. Scents carry on the breeze, and they are with us all the time: from the perfumed odours of pollen blowing in the wind, to the pong as you pass a full dustbin, to the aroma of freshly cooked food wafting out of a pub.

Hemisphere Lighting With Radiosity Maps
Rendering of lighting in outdoor scenes is a paramount concern. To truly be realistic, the light levels constantly vary, and the sun (or suns) are not usually even the primary lightsource! All that adds up to is a computational disaster, unless some way is found to render lightsoure data quickly, and easilly....

Render Smoke And Fog Without Being A Computation Hog
Computer scientists from UC San Diego have developed a way to generate images like smoke-filled bars, foggy alleys and smog-choked cityscapes without the computational drag and slow speed of previous computer graphics methods.

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