Highlight shading: Lighting and shading in a

Pöpsel, Josef; Hornung, Christoph

doi:10.1016/0097-8493(90)90009-m

Cited by 8 publications

(2 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Now, the only task left is to determine, if the Phong interpolation can be adequately replaced by a simple Gouraud interpolation. This task has been investigated by [3,11]. Although their algorithms do not cover all possible cases in our context the algorithm of Harrison et.…”

Section: Is Gouraud Interpolation Sufficientmentioning

confidence: 99%

Efficient rendering of multiresolution meshes with guaranteed image quality

Klein

Schilling

1999

Visual Comp

View full text Add to dashboard Cite

Recently, output-sensitive rendering algorithms have gained a lot interest. While some years ago the number of triangles describing a scene was smaller than the number of pixels on the screne, this relation has changed to the opposite. The size of the models has become significantly larger while the screen resolution remained more or less constant. One way to get output-sensitivity, is the view-dependent use of multiresolution models. The key idea is to determine the lowest resolution for each part of the object that is necessary to get good images that are visually indistinguishable from rendering the original mesh. To take care of the illumination of the objects there are approaches that use cones of normal vectors to perform illumination dependent selective refinement. This allows the correct rendering of highlights and transitions between lit and unlit areas of an object. The drawback of these approaches is that using only the normal cone for the detection gives only a very poor criteria to detect the problematic cases. Therefore, too much refinement has to be performed which in most cases prevents real time update rates between successive frames.In this paper we describe a new approach for better estimation of normal deviations between different levels of detail. This allows for accurate lighting with a minimum number of triangles.

show abstract

Section: Is Gouraud Interpolation Sufficientmentioning

confidence: 99%

Efficient rendering of multiresolution meshes with guaranteed image quality

Klein

Schilling

1999

Visual Comp

View full text Add to dashboard Cite

show abstract

“…graphics packages) standards GKS CGM CGI PHIGS product data exchange standards North-Holland Computer Graphics Forum 9 (1990) 257-267 standard 27,81,98, 157, 218 GKS 7,23,45,46, 169 CGM 134, 145 J . Owen I Computer Graphics and CAD Literature -1989 259 CGI 23 19,45,69, 117,152,156,168, 186 product data exchange standards 51, 118, 134,217 lineapprox 62,69,71, 155, 165, 169, 198,220 Y i e w i n g 117, 152…”

mentioning

confidence: 99%