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Topic: Ambient lighting

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	Ambient Lighting
		Ambient light is supported in all three light nodes and through the Material node.
		The diffuse component is dependent on the angle of illumination to the surface normal, intensity of the light source, and the color of the surface due to texturing, per-face and/or per-vertex diffuse coloring.
		The contribution from ambient lighting is independent of the direction of the light or the orientation of the surface.
	www.e3dnews.com /e3d/Issues/200406-Jun/tom.html (660 words)

	Lighting (Site not responding. Last check: 2007-10-15)
		Ambient light is only available when a Project is open, and is made by modifications to the Global Actor in the Action Editor.
		A dimmer light, known as the "fill," is placed on the opposite side to lessen the severity of the shadows, and reveal the rest of the detail.
		Specifically, the light found on a surface is equal to the intensity of the projecting light multiplied by the sine of the incident light.
	www.nd.edu /~gdenby/lyte.html (5953 words)

	CGTalk - Lighting an ambient pass
		The environment ball seems to be emitting from the physical placement of the ambient light, which is puzzling, as I thought that the physical placement of an ambient light was irrelevant -- it comes from everywhere.
		Maya's Ambient Lights can be color mapped (to project a "cookie") just like a point light, but the pattern is just projected out from the position of the light.
		This is a very powerful lighting technique because it frees you (to a certain extent) from wrangling hundreds of little fill lights whilst maintaining a large degree of creative freedom in your lighting.
	forums.cgsociety.org /printthread.php?t=124891 (1208 words)

	Basic OpenGL Lighting.
		AMBIENT - light that comes from all directions equally and is scattered in all directions equally by the polygons in your scene.
		SPECULAR - as with diffuse lighting, the light comes from a point souce, but with specular lighting, it is reflected more in the manner of a mirror where most of the light bounces off in a particular direction defined by the surface shape.
		The final polygon colour is the sum of all four light components, each of which is formed by multiplying the glMaterial colour by the glLight colour (modified by the directionality in the case of Diffuse and Specular).
	sjbaker.org /steve/omniv/opengl_lighting.html (1338 words)

	What to know about ambient HID lighting design.
		The charts assume that the interior space to be lighted has standard reflectance values for the room surfaces: 80% for the ceiling; 50% for the walls; and 20% for the floor.
		Light contribution from a number of fixtures in the vicinity reaches the desk or work plane.
		For an indirect luminaire, this method involves the use of an isofootcandle-curve plot that shows the lighting level on a horizontal work plane at 5-ft increments from the location of the HID source.
	ecmweb.com /mag/electric_know_ambient_hid/index.html (952 words)

	www.lightingfacts.com - Ambient Lighting
		Ambient light is the general background light all around us it softens contrasts between brightly
		Wall sconces and halogen torchiere floor lamps shine their light up at the ceiling, which then reflects the light throughout the room.
		In many applications, it is desirable to have the major ambient light source dimmable.
	www.lightingfacts.com /Ambient.htm (104 words)

	Cooper Lighting\|Solutions\|Residential\|Recessed (Site not responding. Last check: 2007-10-15)
		Proper ambient lighting is achieved by overlapping the illumination from strategically positioned recessed fixtures.
		Task lighting is most effective when used as a supplement to a general lighting layout.
		The lighting on the wall may have an even scalloped look, an even "wash" of light or varied scallops depending on the spacing of the fixtures.
	www.cooperlighting.com /solutions/residential/recessed (544 words)

	Ambient Lighting - GameDev.Net Discussion Forums (Site not responding. Last check: 2007-10-15)
		Ambient illumination is applied to all objects whether shadowed or not, it is the lowest possible value for lighting in a given scene.
		The ambient colour that is given to materials in the traditional material shading pipeline then specifies the degree to which a given material is lit by this ambient lighting.
		Any kind of averaging of the light directions in a scene and applying it as ambient would be quite odd as it would ignore light occlusion.
	www.gamedev.net /community/forums/viewreply.asp?ID=1842302 (1152 words)

	Ambient Lighting
		This can be accomplished by assuming the ambient term arises due to illumination from a background divided evenly between two intensities A and B (Figure 8).
		So the hemisphere can be roughly aligned to the light source, with the hemisphere in the direction of the light source darker than the one pointing away from the light source.
		Our ambient approximation is shown in Figure 9 and is not measurably slower than a constant ambient component for non-trivial models.
	www.cs.utah.edu /~shirley/papers/rtrt/node7.html (362 words)

	Welcome to CGarchitect.com
		Ambient light is one of the most important parts of creating a realistic rendering becuase it sets the time and mood of picture that you are trying to create.
		The color of the ambient light should be the average color of light affecting the scene + the average color of the entire room.
		Another example that is yellow and purple, yellow light goes well with purple ambient light.
	www.cgarchitect.com /resources/tutorials/smoke3d/tutorial1.asp (634 words)

	Lighting Design Lab Articles - Archived Articles - Task Ambient Lighting
		The key to today's task-ambient lighting system is to provide the correct maintained footcandles on the task without overlighting adjacent areas, and adding task lighting where needed.
		With task-ambient lighting you would design to middle of activity D, 30 footcandles, and add task lighting where activity E tasks are performed.
		The computer portion of my desk may actually be over lighted at 30 footcandles, and the lighting on the writing-reading portion is adequate for most of my tasks.
	lightingdesignlab.com /commercial/articles/Task_Ambient.htm (614 words)

	DOE Building Technologies Program: Unified Task and Ambient Lighting
		Objective: Research, develop, and integrate a series of advanced lighting technologies into a unified task and ambient lighting system designed for the modern office.
		Key objectives are energy savings and lighting quality, with a focus on moving lighting to where it is needed and providing user control over the visual environment.
		Approach: To accelerate the development of unified task and ambient lighting technologies, DOE promotes collaboration among lighting end users, designers, researchers, and manufacturers to identify, address, and resolve task and ambient lighting issues in workplace environments.
	www.eere.energy.gov /buildings/tech/lighting/ambient.html (203 words)

	lighting on Encyclopedia.com
		light produced by artificial means to allow visibility in enclosures and at night.
		Several types of lighting, from recessed to under-cabinet lights, fill this kitchen in Inver Grove Heights, Minnesota.
		Primary Light Sources Ambient lighting comes from all directions, while directional and positional lighting come.
	www.encyclopedia.com /html/l1/lighting.asp (410 words)

	Depth Map based Ambient Occlusion
		Once the ambient occlusion pass has been rendered, the indirect lighting contribution to the scene is then calculated by applying an environment map of the scene into which the object is to be integrated.
		This ambient light is attenuated by the previously rendered ambient occlusion pass, thus the top of my head would receive a great deal of illumination, whilst my armpit would remain darker.
		The second pass is a key light pass, in which you place your conventional CG lights to create any strongly directional illumination and also any cast shadows, also using the regular surface shaders that you'd use if you were lighting the shot conventionally.
	www.andrew-whitehurst.net /amb_occlude.html (1633 words)

	Welcome to the Ambient Lighting website (Site not responding. Last check: 2007-10-15)
		Ambient Lighting distributes a few carefully selected lighting ranges, mainly aimed at the architectural and commercial markets, and with a strong accent on colour changing lighting.
		Ambient has colour changing lighting for interior and exterior use, and the wide variety of available units means that nearly all potential applications can be covered.
		Ambient acts as exclusive UK distributor for Italian lighting manufacturer Griven, and is main distributor for AVR ColourMaster (including the new LEDION LED RGB colour mixing panels).
	www.amblight.co.uk /welcome.html (224 words)

	NextWindow.Com Ambient Lighting FAQ (Site not responding. Last check: 2007-10-15)
		It is important to ensure that no Halogen lights are in direct line-of-sight with a camera in any of NextWindow's products, (from any distance - at 45 degree angle from the corner where the camera is sited in direct line-of-sight - see the example below).
		The fluctuation and saturation of light from Halogens, can cause an issue with Calibration of the NextWindow Product and/or a misplaced touch may result (as this may cause a second touch to register and result in the cursor moving accordingly).
		The fluctuation of light from Mercury Vapour Lights, can cause an issue with Calibration of the NextWindow Product and/or a misplaced touch may result (as this may cause a second touch to register and result in the cursor moving accordingly).
	nextwindow.com /support/lighting_FAQ.html (331 words)

	Ambient Lighting - From TV Lamps to Today (Site not responding. Last check: 2007-10-15)
		As many people are aware, TV lamps originated from a need to diffuse the contrast between the brightness of the television screen and the comparative darkness of the surrounding environment.
		This nifty bit of ingenuity consisted of a flourescent bulb that cast a "halo" of light around the screen, surrounding the picture with ambient light.
		By projecting a glow of light on the wall directly behind the screen it is intended to "improve the viewing experience".
	www.tvlamps.net /ambient.html (236 words)

	Plasma TVs pass screen test for lighting, resolution, style
		With some ambient light, your pupils don't have to work as hard to adjust to the extreme variations in light on the video screen.
		The light can be set to white or a fixed color, or it will change automatically to adapt to the images on the screen.
		Watching a movie with the background light on is not only more pleasant, but the ambient light seems to make the picture colors more vivid and the screen seem slightly larger.
	www.azcentral.com /arizonarepublic/home/articles/0709plasmatv0709.html (636 words)

	Lighting - Ambient Lighting
		The electrical power for the lighting must be separated from the data processing electric power.
		The position of the lights should be capable of offering homogeneous lighting irrespective of the changes made to the initial installation.
		It is preferable to use lights embedded in the suspended ceiling.
	www.cs.bull.net /AISE/guide/en/Site74.htm (106 words)

	Ambient Lighting (Site not responding. Last check: 2007-10-15)
		Ambient/General lighting is diffused light (often colored, using "gels") that sets the mood of a room or outdoor area and provides basic illumination over a broad area, often adding a decorative touch.
		This aspect of lighting is important to your overall lighting plan and can be used in combination with our Dance Lighting systems.
		Following is a listing of some of the lighting products we have in inventory at all times to serve ambient lighting events.
	www.edenaudio.com /services/lighting/ambient/index.asp (500 words)

	Lighting Lighting companies (Site not responding. Last check: 2007-10-15)
		Lighting is a very important aspect of a home.
		2) Task lighting is lighting that is used in one small area to help a person with reading, cross stitchor other detailed work that requires a brighter image.
		For your daily use ambient lighting, dimmer lights are a great choice.
	www.find-information-on.com /lighting.php (249 words)

	GameDev.net - Lighting and Normals (Site not responding. Last check: 2007-10-15)
		When GL_LIGHTING is enabled, vertices' colours are specified by their material (which holds specular, diffuse and ambient lighting properities) rather than the current colour, however, if we call glEnable(GL_COLOR_MATERIAL) it will cause the current material to "track" the current colour, meaning our calls to glColor3f() will still work.
		Finally, we'll need to make sure that the current material's ambient and specular properites are set to fl, as we don't want (or at least I don't want) the cube to be self-illuminating or reflective.
		Because we're specifying the position of the light before we translate the modelview matrix for drawing the cube, the position will change relative to the cube as the cube rotates.
	www.gamedev.net /reference/articles/article1682.asp (1173 words)

	Myopia, genetics, and ambient lighting at night in a UK sample -- Guggenheim et al. 87 (5): 580 -- British Journal of ... (Site not responding. Last check: 2007-10-15)
		Myopia, genetics, and ambient lighting at night in a UK sample -- Guggenheim et al.
		Modulation of constant light effects on the eye by ciliary ganglionectomy and optic nerve section.
		Continuous ambient lighting and eye growth in primates.
	bjo.bmjjournals.com /cgi/content/full/87/5/580 (1497 words)

	Doom3 world :: View topic - Tutorial: Realising ambient lighting by manual lightmapping.
		This is the way that most mappers try to set up ambient lighting and this is where their frustration comes from in lighting scenes.
		It's no hard leap to go on to claim this is not a cost effective method of setting up ambient lights for mapping in terms of time but to be honest, once you have a basic setup done and once you've made the textures you want to use in other maps you are done.
		Find out there are glitches, replace the lights, adjust some settings, wait another 2 hours for the compiling to finish and repeat that process for 4-8 times before you can call your map 'finished', then come back here and we'll have a discussion about timeconsuming mapping methods.
	www.doom3world.org /phpbb2/viewtopic.php?t=8045 (3807 words)

	Supply and installation of quality underfloor heating systems
		Electric under floor heating is generaly cheaper to install than a plumbed system and provides levels of control that are generaly not practical with the water based systems, this makes it the ideal choice for most domestic applications whether new build or refurb.
		Ambient offer a BSI certified fully installed service throughout Essex, Hertfordshires, Cambridgeshire, Suffolk, Norfolk, London and the South East.
		Ambient offer a free design service and can be contacted via our contact page or by:
	www.ambient-elec.co.uk (390 words)

	Indirect Lighting from Lightolier \| B&OI Workspace Product Solution
		Indirect lighting reflects light off of the ceiling or walls to create a soft, diffused spread of light.
		Therefore, effective indirect lighting uses fixtures that emit some visible brightness (luminous indirect), a distinct component of direct light, or aggresively combine accent and ambient lighting.
		It's assisted indirect shielding option allows the designer to light a space without using the ceiling as a reflector.
	www.bankandoffice.com /workspace/light_indirect.htm (366 words)

	Depth-based Ambient Occlusion (Site not responding. Last check: 2007-10-15)
		The traditional ambient light is quite boring since it simply throw a flat color onto the surface, discarding too much details.
		Import the light dome and transform the group to let every light's cone tightly fit the copter so more pixel of the shadow maps will be useful.
		Most common shading models has the Ambient() call, so you can apply any textured shader on the model, but remember to set "Ka" high enough, or the ambient light will be invisible.
	zj.deathfall.com /depthbasedOcc.htm (1004 words)

	Doom3 world :: View topic - Ambient Lighting - Slight update
		Of course, the reason there was no light between Mord's buildings was due to the fact that the light that I was using as the "ambient light" was positioned in the center of the map, so any areas behind other buildings were not being lit.
		After looking at a number of different ambient lighting techniques and testing some of them out, I think BloodRayne's looks the best and is the most flexible for our needs.
		When I'm done, there will be no pitch-fl areas in the map, only one light will be used for both the sun and moon, and mappers will have more artistic freedom when lighting their blocks.
	www.doom3world.org /phpbb2/viewtopic.php?t=8389 (1664 words)

	Effect of Laser Glare and Aircraft Windscreen on Visual Search Performance Under Low Ambient Lighting - Storming Media
		However, the degree of disruption of visual performance is probably influenced by a variety of factors, including windscreen characteristics and ambient illumination.
		On different test sessions subjects, under low ambient lighting (1-3 cd/m2), either viewed the task through an aircraft windscreen or with the windscreen removed.
		Laser light (514 nm) was projected toward the subject from the center of the disk array on the projection screen using a fiber-optic light guide.
	www.stormingmedia.us /65/6549/A654912.html (554 words)

	Ambient lighting from your Philips TV
		Ambient lighting from your Philips TV Previous post
		It provides ambient light at tested levels that enhances the overall viewing experience.
		Soft light emanating onto the wall around the TV improves the perceived picture detail, contrast, and color in a relaxed viewing environment and firmly establishes the TV set as a design element within one’s living space.
	www.ubergizmo.com /15/archives/2005/09/ambient_lightin.html (312 words)

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