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Topic: Flat shading

Related Topics

Gouraud shading

Phong shading

Computer graphics

3D computer graphics

Ray tracing

Phong reflection model

Bui tuong phong

Bump mapping

Constructive solid geometry

Radiosity

Procedural surface

Polygon

Texture mapping

Computer animation

Subdivision surface

	MCIS 625: Winter 2004
		The simplest polygon rendering method, called flat shading, calculates a single intensity value for each surface polygon, based on the orientation of the polygon and on the position and intensity of the light sources in the scene.
		Thus a curved surface that is represented by a mesh of polygons appears as a mesh of flat facets, under flat shading.
		The advantage of flat shading is that it is very fast—only one normal vector per polygon need be computed.
	www.scis.nova.edu /~mjl/625w04/week10.html (483 words)

	FS 3D Guide: Filtering and Lighting
		Shading is roughly defined as the process of applying a lighting, or illumination, model to the surface of a polygon.
		Flat shading, also called constant shading, is the simplest kind of shading, and is thus where we shall begin.
		In the case of flast shading, we see that the light (or dark) intensity at the edges of the polygon faces are overestimated for light values and underestimated for dark values.
	www.firingsquad.com /guides/videolightfilter/page5.asp (312 words)

	glShadeModel (Site not responding. Last check: 2007-10-19)
		Smooth shading, the default, causes the computed colors of vertices to be interpolated as the primitive is rasterized, typically assigning different colors to each resulting pixel fragment.
		Flat shading selects the computed color of just one vertex and assigns it to all the pixel fragments generated by rasterizing a single primitive.
		Flat and smooth shading are indistinguishable for points.
	khronos.org /opengles/documentation/opengles1_0/html/glShadeModel.html (183 words)

	hpux psbism.3g
		This method is commonly referred to as flat shading or constant shading.
		For this shading method, the intrinsic colour of a facet is the facet colour, or the current back interior colour if facet colours are not specified.
		Shading Method None (Flat Shading) When reflectance calculations are disabled, realized facet colours are the intrinsic colours of the facets.
	www.informatik.uni-frankfurt.de /doc/man/hpux/psbism.3g.html (625 words)

	Gouraud Shading
		Gouraud shading is a method for linearly interpolating a colour or shade across a polygon.
		Unlike a flat shaded polygon, you can specfy a different shade for each vertex of a polygon, the rendering engine then smoothly interpolates the shade across the surface.
		In this implementation, the highest 8 bits of a regester are used as the integer part of the shade being interpolated, and the lower 8 bits are used as the fractional part.
	freespace.virgin.net /hugo.elias/graphics/x_polygo.htm (868 words)

	Flat shading -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-19)
		Flat shading is lighting technique used in (Click link for more info and facts about 3D computer graphics) 3D computer graphics.
		It shades each (A closed plane figure bounded by straight sides) polygon of an object based on the angle between the polygon's (Click link for more info and facts about surface normal) surface normal and the direction of the light source, their respective colors and the intensity of the light source.
		More advanced and realistic lighting and shading techniques include (Click link for more info and facts about Gouraud shading) Gouraud shading and (Click link for more info and facts about Phong shading) Phong shading.
	www.absoluteastronomy.com /encyclopedia/f/fl/flat_shading.htm (200 words)

	Gouraud Shading, Flat Shading, etc...
		Flat shading is the least realistic of all shading methods.
		The simplest shading model for a polygon is 'constant shading', also known as 'faceted shading' or 'flat shading'.
		The term 'Gouraud shading' is often generalized to refer to intensity interpolation shading of even a single polygon in isolation, or to the interpolation of arbitrary colors associated with polygon vertices {as is the case in computer games}.
	www.futuretech.blinkenlights.nl /gouraud.html (2421 words)

	GTA\GTA London User Cars - [GTAzz]
		The shading is actually very nice, and is only let down by a few of the highlights, namely those on the rear, which needed to be worked in more to the body.
		Number one being that the shading is slightly split, where the left side appears all on one level, and the right with a raised fender and a lower shadowed region.
		The overall shading is nice, especially on the roof and on the front (despite the different levels), but it's a bit flat on the rear, and that highlight over the engine is too cloudy.
	azz.gouranga.com /carmanager/cars.shtml?page=112 (4841 words)

	3D Graphics Trends - Welcome to Just Adventure + - Articles
		The entire polygon is uniformly colored and the color depends on the polygon's orientation, or in tech speak, on the orientation of its surface normal relative to the directional vector of the light source(s).
		Flat shaded models don't look terribly good and they are very angular.
		Creating flat shaded objects that have a rounded look is next to impossible (and somewhat useless).
	www.justadventure.com /articles/3D/3DGraphicsTrens.shtm (3291 words)

	Illumination and Shading Models
		The exact colour of a surface when viewed depends on more than pigmentation; the amount of light striking the surface, the colour of the light, the angle the light strikes the surface, the orientation of the viewer and the texture of the surface all contribute to the actual colour we see (figs 7.1 and 7.2).
		A naive Flat Shading technique will apply a refection model to one point on a face and the shade determined is applied to the entire face.
		Flat shading is generally only used for prototyping or testing an application where speed, not accuracy is important.
	glasnost.itcarlow.ie /~powerk/Graphics/Notes/node10.html (1648 words)

	[No title] (Site not responding. Last check: 2007-10-19)
		Flat Shading: Each face is filled with a single shade or color, but the shade is determined by an illumination model.
		With flat shading, the model is applied to only one point on each face, and the shade determined there is used to fill the entire face.
		With smooth shading, we apply the illumination model to several points on the face and the different shades found at these points are blended to yield the shade at each point on the face.
	www.stanford.edu /class/cs148/handouts/15.Lighting.doc (4534 words)

	[No title] (Site not responding. Last check: 2007-10-19)
		The object is a solid and should be rendered with flat shading to maintain the sharp edges of the tetrahedron.
		Flat shading only calculates a single color value for a face and then applies it over the entire face.
		Flat shading is not able to represent the gradation of color which is normally seen on a lit surface.
	www.cs.berkeley.edu /~ug/slide/docs/slide/spec/slidespec_geonode.shtml (3111 words)

	SHADING MODELS (Site not responding. Last check: 2007-10-19)
		Here is an example: it uses 16 times more triangles than before; they are still flat shaded (you still should be able to see the discontinuities), but the result is much better.
		The main drawback of the flat shading model are the discontinuities of color along the boundaries of the triangles.
		However, it's better than the flat shaded cow with the same number of triangles (the first image) and much cheaper to render than the cow modelled with small triangles (second image).
	www.cc.gatech.edu /classes/AY2003/cs4451_spring/linint.html (485 words)

	Rendering
		Using UnLit Flat Shading, all faces of an object are shown using the same color.
		UnLit Flat shading is computationally the least expensive form of shading.
		Using Flat Shading, light effects are uniform across the faces of each object.
	www.20sim.com /webhelp4/Toolboxes/animation/3DAnimation/3DAnimationRendering.htm (149 words)

	[No title]
		Although objects drawn with interpolated shading look good on the screen, objects which consist of a large number of interpolated patches generally take an unacceptably long time to print.
		Unlike flat and faceted shading, in which the color of each patch is constant and specified directly in the PostScript code, the PostScript files generated for interpolated shading contain the color information of the patches' vertices.
		Interpolated shading can be approximated by interpolating the actual data used to construct the object, and then plotting the interpolated data using flat shading.
	www.nd.edu /~dtl/cheg258/cheg258-2000/cheg258-1999/YESTRDAY/notes/doc/tec2.1.html (539 words)

	lance.art - Anim8or and Flash
		To achieve flat shading in images rendered with Anim8or, all objects you use must be meshes.
		The result is really crisp and looks like a 3d-model, not as a Flash animation, but has typical qualities of flat shaded images, as all polygons are clearly visible.
		If objects are kept relatively simple and flat shading is used, it is possible to create symbols that duplicate the exact appearance of the 3d-rendering without sacrificing too much space.
	www.geocities.com /lanceart/article01.html (470 words)

	Learn more about Computer graphics in the online encyclopedia. (Site not responding. Last check: 2007-10-19)
		; Flat shading: A technique that shades each polygon of an object based on the polygon's "normal" and the position and intensity of a light source.
		; Gouraud shading: Invented by Henri Gouraud in 1971, a fast and resource-conscious vertex shading technique used to simulate smoothly shaded surfaces.
		; Phong shading: Invented by Wu Tong Phong, used to simulate specular highlights and smooth shaded surfaces.
	www.onlineencyclopedia.org /c/co/computer_graphics.html (510 words)

	V2 Tutorials
		Shading is used to add Color, Texture Mapping, Transparency and Transparency Mapping to Vector Geometry and Titles.
		Select the Shading Button on the Components toolbar at the left (a picture of paint pouring from a can) or select the Editor Button in the Quick Editor to open the Advanced shading dialog.
		The end of the shading vector is used to change the direction of Linear and Cylindrical shading.
	www.virtualmechanics.com /products/engine/tutorials/werendering.html (949 words)

	GameSpot:Video Games PC PlayStation 2 GameCube PSP DS GBA PS2 PS3 Xbox 360 PlayStation 3 (Site not responding. Last check: 2007-10-19)
		A shading technique that lights a polygon with a single value of light based on a line perpendicular to the face of the polygon.
		Flat shading is very inaccurate and looks entirely fake.
		Where flat shading lights the entire polygon with one light value, Gouraud shading gives each vertex (or corner) of the polygon its own light value and smoothly averages between each corner across the face of the polygon.
	www.gamespot.com /gamespot/features/video/defining_games/p2_02.html (853 words)

	іLі NVIDIA / SoftQuadro4
		The flat shading mode have to put less load on GPU than that of Gourand shading mode, because in the first mode Graphics Processor calculates overall lighting for each triangle, while the second mode requires lighting calculation for each of the vertices and the following linear interpolation for each of the triangle’s pixel.
		The results of flat shading benchmarks which are lower than much more complicated Gourand shading benchmarks, are strange, to say the least.
		The size of geometry data file for flat shading, which is twice as big as Gourand shading file, is suspicious too.
	www.nvworld.ru /docs/sq43e.html (1969 words)

	Bump Mapping Revisited
		If you need more info about it first read this article and a good common knowledge of flat and gouraud shading is also needed to understand the rest...
		This is similar to using flat shading instead of gouraud shading.
		Note that if Phong shading is being used at the same time then the normal that is being perturbed would not be perpendicular to the surface, but this does not change the method as the supplied values are a perturbation and not an absolute normal..."
	www.ping.be /~pin10741/bumprevisit.htm (1993 words)

	hpux pset_int_shad_method.3g
		For this shading method, the intrinsic colour of a facet is the facet colour, or the current interior colour if facet colours are not specified.
		The interior shading methods described under the method parameter only apply in a direct colour environment.
		In an indexed colour environment both shading methods use the current interior colour and no shading is performed.
	www.informatik.uni-frankfurt.de /doc/man/hpux/pset_int_shad_method.3g.html (674 words)

	3D shading (Site not responding. Last check: 2007-10-19)
		Z-flat is a very annoying-looking shading technique which can be implemented by giving a polygon the color value depending on the z coordinate, average of the polygon's vertices:
		Lambert Flat is a remarkably better-looking technique because it has a real light source.
		Vertex normals are normals of the object's surface (the object being actually approximated using polygons) at the point, so they are in every vertex perpendicular to the object's (the real object, not the approximated one) surface.
	www.mat.uni.torun.pl /~wrona/3d_tutor/shading.html (1147 words)

	CSC3406 Computer Graphics
		It assumes that an individual polygon face of an object is flat and all points on the surface are the same distance from the light source.
		To see the difference between flat and smooth shading of similar objects, see figures 8.24 and 8.25 of the textbook.
		It's also called flat shading: a fast and simple method for rending an object with polygon surface.
	www.sci.usq.edu.au /courses/CSC3406/m08.html (976 words)

	Surfaces (Site not responding. Last check: 2007-10-19)
		In the model, a very fine grid (in the x-y plane) was used and the flat shaded plume looks similar to the Gouraud shaded one.
		Objects that are behind the background shaded cells are not visible.
		Background shading of the surfaces provides a "hidden line" rendering where the cells behind are not shown.
	www.ctech.com /evs_help/surfaces.htm (441 words)

	Light Sourced Lambert Shading (Site not responding. Last check: 2007-10-19)
		Flat shading just changes the lighting over the entire polygon.
		Which means if we have 16 shades of each color then for unit length of 1 multiply the dot product by 15 and add the ambient light, you now have the lighting value for that polygon.
		A quick note about shading here, to actually calculate what (say) a yellow polygon would be with a light intensity of 5, layout your palette so for each color, the 15 values before it is the colors getting darker.
	www.exaflop.org /docs/waynelight/ind.html (1107 words)

	Anime and Toon Rendering
		Animation:Master comes with several toon shading presets that you can load by right-clicking (Control-click) on the Gradient bar and picking [Presets] and the preset gradient you want to use.
		"Flat" shading and "Toon" shading are often confused.
		}}-->"Flat" shading can also be set for a model that is going to be used as a Front Projection target because it is supposed to be exactly the same as the Front Projection map (except the shadows from "Shadow Only" lights).
	www.hash.com /HTMLHelp/v9.5/CustomHtml/AnimeToon.htm (476 words)

	Graphics Definitions (Site not responding. Last check: 2007-10-19)
		Some programs are able to render flat shaded objects in real time.
		When rendering using flat shading, the computer takes creates an average color for an object and then renders each face with different amounts of fl or white added to simulate shading.
		This mode is not much slower than flat shading and can also be rendered in real time on some of the more powerfull computers.
	www.bergen.org /AAST/ComputerAnimation/Graph_Rendering.html (716 words)

	3DEL: API: Own API without 3D HW-support
		Gouraud shading and dithering, wireframe and flatshading rending.
		Flat or gouraud shading in combination with dithering, transparency and texture-mapping.
		Gouraud and flat shading, texture mapping is planned.
	www.3dengines.de /api_none.html (2776 words)

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