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1. 发明公开

EP0611022A3 Image generator 失效
公开(公告)号：EP0611022A3
公开(公告)日：1994-12-21
申请号：EP94201379.8
申请日：1989-12-05
申请人： REDIFFUSION SIMULATION LIMITED
发明人： Baker, Stephen John , Cowdrey, Dennis Alan , Olive, Graham John , Wood, Karl Joseph
IPC分类号： G06F15/72
CPC分类号： G06T1/60 , G06T15/00 , G09B9/301
摘要： An apparatus for generating an image to be displayed on a display screen from data defining a model including a plurality of opaque and translucent features. The image is intended to represent a view of the model from a predetermined eyepoint and is made up from an array of screen space pixels to be displayed by a raster scanning process. Each pixel is of uniform colour and intensity, and the pixels together define an image area. The image area is divided into an array of sub-areas each of which covers at least one pixel. For each feature in the model that is potentially visible from the eyepoint, a test is conducted to determine which of the sub-areas is at least partially covered by that feature. A list of feature identifiers is produced in respect of each sub-area, the list for any one sub-area identifying features which at least partially cover that sub-area. The position in screen space of at least one sampling point within each sub-area is determined. For each sub-area in turn, and for each sampling point a test is conducted to determine which of the features in that sub-area's list cover that sampling point. For each feature which covers a sampling point, a function of the distance from the eyepoint to that feature at the sampling point is determined. Feature describing data is stored for each sampling point within a sub-area, the stored data being indicative of at least the distance of the opaque feature which covers the sampling point and is nearest to the eyepoint and the distance and translucency of at least one nearer translucent feature which covers the sampling point. An output is produced for each sampling point within a sub-area, the sampling point output corresponding to the combined effects of the features identified by the stored data. An output for each pixel within a sub-area is produced, the pixel output corresponding to the combined effects of the sampling point outputs for all sampling points which contribute to that pixel, and the pixel outputs are displayed.

2. 发明公开

EP0611020A3 Image generator 失效
公开(公告)号：EP0611020A3
公开(公告)日：1994-12-21
申请号：EP94201376.4
申请日：1989-12-05
申请人： REDIFFUSION SIMULATION LIMITED
发明人： Baker, Stephen John , Cowdrey, Dennis Alan , Olive, Graham John , Wood, Karl Joseph
IPC分类号： G06F15/72
CPC分类号： G06T1/60 , G06T15/00 , G09B9/301
摘要： An apparatus for generating an image to be displayed on a display screen from data defining a model including a plurality of opaque and translucent features. The image is intended to represent a view of the model from a predetermined eyepoint and is made up from an array of screen space pixels to be displayed by a raster scanning process. Each pixel is of uniform colour and intensity, and the pixels together define an image area. The image area is divided into an array of sub-areas each of which covers at least one pixel. For each feature in the model that is potentially visible from the eyepoint, a test is conducted to determine which of the sub-areas is at least partially covered by that feature. A list of feature identifiers is produced in respect of each sub-area, the list for any one sub-area identifying features which at least partially cover that sub-area. The position in screen space of at least one sampling point within each sub-area is determined. For each sub-area in turn, and for each sampling point a test is conducted to determine which of the features in that sub-area's list cover that sampling point. For each feature which covers a sampling point, a function of the distance from the eyepoint to that feature at the sampling point is determined. Feature describing data is stored for each sampling point within a sub-area, the stored data being indicative of at least the distance of the opaque feature which covers the sampling point and is nearest to the eyepoint and the distance and translucency of at least one nearer translucent feature which covers the sampling point. An output is produced for each sampling point within a sub-area, the sampling point output corresponding to the combined effects of the features identified by the stored data. An output for each pixel within a sub-area is produced, the pixel output corresponding to the combined effects of the sampling point outputs for all sampling points which contribute to that pixel, and the pixel outputs are displayed.

3. 发明公开

EP0532579A1 IMAGE GENERATOR 失效
标题翻译：图像生成。
公开(公告)号：EP0532579A1
公开(公告)日：1993-03-24
申请号：EP91910421.0
申请日：1991-06-03
申请人： REDIFFUSION SIMULATION LIMITED
发明人： BAKER, Stephen, John , WOOD, Karl, Joseph , OLIVE, Graham, John , SMITH, Jeffrey, Nigel
IPC分类号： G09B9 , G06T15
CPC分类号： G06T15/506 , G09B9/301
摘要： Procédé et appareil servant à simuler les effets d'illumination d'une source de lumière montée sur un véhicule dans une image visualisée sur un écran. L'image est supposée représenter l'aspect d'un modèle défini dans une base de données en coordonnées d'espace universel à partir d'une position de point oculaire dans l'espace, le modèle étant défini selon une multiplicité de caractéristiques comportant chacune des attributs prédéterminés. La source de lumière montée sur le véhicule est définie selon une origine et une direction dans l'espace du point oculaire. Pour chaque caractéristique contribuant potentiellement à l'image, la position angulaire d'un point sur cette caractéristique par rapport à la source de lumière est calculée comme l'angle entre la direction de la source de lumière et une ligne tirée jusqu'à ce point à partir de la source de lumière. Une intensité d'illumination pour ce point est déterminée selon l'angle calculé, et l'intensité d'illumination est réduite en fonction de la distance à partir du point oculaire jusqu'audit point afin de produire une intensité résultante. Les attributs de la caractéristique audit point sont modulés en fonction de l'intensité résultante.

4. 发明公开

EP0446293A1 IMAGE GENERATOR 失效
标题翻译：成像设备。
公开(公告)号：EP0446293A1
公开(公告)日：1991-09-18
申请号：EP90900934.0
申请日：1989-12-05
申请人： REDIFFUSION SIMULATION LIMITED
发明人： BAKER, Stephen, John , COWDREY, Dennis, Alan , OLIVE, Graham, John , WOOD, Karl, Joseph
IPC分类号： G06T15 , G09B9
CPC分类号： G06T1/60 , G06T15/00 , G09B9/301
摘要： L'invention concerne un appareil créant une image à partir de données définissant un modèle comprenant une pluralité de caractéristiques opaques et translucides. L'image est conçue pour représenter une vue du modèle à partir d'un point oculaire, et est composée d'un réseau de pixels d'espace d'écran. La surface de l'image est divisée en un réseau de zones couvrant chacune au moins un pixel. Pour chaque caractéristique du modèle potentiellement visible du point oculaire, on procède à un test afin de déterminer laquelle des zones est au moins partiellement couverte par cette caractéristique. On détermine la position dans l'espace de l'écran d'au moins un point d'échantillonnage à l'intérieur de chaque zone. Pour chaque zone à son tour, et pour chaque point d'échantillonnage, on procède à un test afin de déterminer laquelle des caractéristiques couvre ce point d'échantillonnage. Pour chaque caractéristique couvrant un point d'échantillonnage, on détermine une fonction de la distance à partir du point oculaire jusqu'à cette caractéristique au niveau du point d'échantillonnage. On produit une sortie pour chaque pixel se trouvant à l'intérieur d'une zone, la sortie du pixel correspondant aux effets combinés des sorties des points d'échantillonage pour tous les point d'échantillonnage contribuant à ce pixel, puis on affiche les sorties des pixels.

5. 发明公开

EP0621548A2 Image generator 失效
标题翻译：图像发生器
公开(公告)号：EP0621548A2
公开(公告)日：1994-10-26
申请号：EP94201378.0
申请日：1989-12-05
申请人： REDIFFUSION SIMULATION LIMITED
发明人： Baker, Stephen John , Cowdrey, Dennis Alan , Olive, Graham John , Wood, Karl Joseph
IPC分类号： G06F15/72
CPC分类号： G06T1/60 , G06T15/00 , G09B9/301
摘要： An apparatus for generating an image to be displayed on a display screen from data defining a model including a plurality of opaque and translucent features. The image is intended to represent a view of the model from a predetermined eyepoint and is made up from an array of screen space pixels to be displayed by a raster scanning process. Each pixel is of uniform colour and intensity, and the pixels together define an image area. The image area is divided into an array of sub-areas each of which covers at least one pixel. For each feature in the model that is potentially visible from the eyepoint, a test is conducted to determine which of the sub-areas is at least partially covered by that feature. A list of feature identifiers is produced in respect of each sub-area, the list for any one sub-area identifying features which at least partially cover that sub-area. The position in screen space of at least one sampling point within each sub-area is determined. For each sub-area in turn, and for each sampling point a test is conducted to determine which of the features in that sub-area's list cover that sampling point. For each feature which covers a sampling point, a function of the distance from the eyepoint to that feature at the sampling point is determined. Feature describing data is stored for each sampling point within a sub-area, the stored data being indicative of at least the distance of the opaque feature which covers the sampling point and is nearest to the eyepoint and the distance and translucency of at least one nearer translucent feature which covers the sampling point. An output is produced for each sampling point within a sub-area, the sampling point output corresponding to the combined effects of the features identified by the stored data. An output for each pixel within a sub-area is produced, the pixel output corresponding to the combined effects of the sampling point outputs for all sampling points which contribute to that pixel, and the pixel outputs are displayed.
摘要翻译：一种用于从定义包括多个不透明和半透明特征的模型的数据生成要显示在显示屏幕上的图像的设备。该图像旨在表示来自预定视点的模型的视图，并且由要通过光栅扫描过程显示的屏幕空间像素阵列构成。每个像素具有统一的颜色和强度，并且像素一起定义图像区域。图像区域被分成一组子区域，每个子区域覆盖至少一个像素。对于从眼点可能可见的模型中的每个特征，进行测试以确定哪个子区域至少部分被该特征覆盖。关于每个子区域产生特征标识符列表，该列表用于识别至少部分覆盖该子区域的特征的任何一个子区域的列表。确定每个子区域内至少一个采样点在屏幕空间中的位置。对于每个子区域，并对每个采样点进行测试，以确定该子区域列表中的哪些特征覆盖该采样点。对于覆盖采样点的每个特征，确定从采样点处的眼点到该特征的距离的函数。描述数据的特征被存储用于子区域内的每个采样点，所存储的数据至少指示覆盖采样点并且最接近眼点的不透明特征的距离以及至少一个较近的距离和半透明度覆盖采样点的半透明特征。针对子区域内的每个采样点产生输出，采样点输出对应于由存储的数据识别的特征的组合效果。产生子区域内的每个像素的输出，该像素输出对应于对该像素有贡献的所有采样点的采样点输出的组合效果，并且显示像素输出。

6. 发明公开

EP0526530A1 IMAGE GENERATOR 失效
标题翻译：图像生成。
公开(公告)号：EP0526530A1
公开(公告)日：1993-02-10
申请号：EP91908513.0
申请日：1991-04-15
申请人： REDIFFUSION SIMULATION LIMITED
发明人： OLIVE, Graham, John
IPC分类号： G09B9 , G06T15
CPC分类号： G09B9/301 , G06T15/005
摘要： On décrit des caractéristiques elliptiques dans une base de données générateur d'images sous la forme d'une origine et des axes majeurs et mineurs définis par rapport à un système de coordonnées, en vue de leur affichage, en transformant le contenu de la base de données en espace d'écran, et en évaluant, pour chaque point d'un réseau réparti dans l'espace d'écran, les caractéristiques devant contribuer à la partie d'une image finale dans laquelle se trouve le point d'échantillonnage. Dans le cas de caractéristiques elliptiques, les données sont transformées en espace de point oculaire, et chaque point d'échantillonnage est projeté dans l'espace de point oculaire pour déterminer le point d'intersection entre une ligne tirée à travers le point d'échantillonnage depuis le point oculaire et un plan défini par les axes. Les coordonnées du point d'intersection dans un système de coordonnées défini par l'origine et les axes sont utilisés pour déterminer si la caractéristique contribue ou non au point d'échantillonnage.

7. 发明公开

EP0611021A3 Image generator 失效
公开(公告)号：EP0611021A3
公开(公告)日：1995-06-14
申请号：EP94201377.2
申请日：1989-12-05
申请人： REDIFFUSION SIMULATION LIMITED
发明人： Baker, Stephen John , Cowdrey, Dennis Alan , Olive, Graham John , Wood, Karl Joseph
IPC分类号： G06F15/72
CPC分类号： G06T1/60 , G06T15/00 , G09B9/301
摘要： An apparatus for generating an image to be displayed on a display screen from data defining a model including a plurality of opaque and translucent features. The image is intended to represent a view of the model from a predetermined eyepoint and is made up from an array of screen space pixels to be displayed by a raster scanning process. Each pixel is of uniform colour and intensity, and the pixels together define an image area. The image area is divided into an array of sub-areas each of which covers at least one pixel. For each feature in the model that is potentially visible from the eyepoint, a test is conducted to determine which of the sub-areas is at least partially covered by that feature. A list of feature identifiers is produced in respect of each sub-area, the list for any one sub-area identifying features which at least partially cover that sub-area. The position in screen space of at least one sampling point within each sub-area is determined. For each sub-area in turn, and for each sampling point a test is conducted to determine which of the features in that sub-area's list cover that sampling point. For each feature which covers a sampling point, a function of the distance from the eyepoint to that feature at the sampling point is determined. Feature describing data is stored for each sampling point within a sub-area, the stored data being indicative of at least the distance of the opaque feature which covers the sampling point and is nearest to the eyepoint and the distance and translucency of at least one nearer translucent feature which covers the sampling point. An output is produced for each sampling point within a sub-area, the sampling point output corresponding to the combined effects of the features identified by the stored data. An output for each pixel within a sub-area is produced, the pixel output corresponding to the combined effects of the sampling point outputs for all sampling points which contribute to that pixel, and the pixel outputs are displayed.

8. 发明公开

EP0611022A2 Image generator 失效
公开(公告)号：EP0611022A2
公开(公告)日：1994-08-17
申请号：EP94201379.8
申请日：1989-12-05
申请人： REDIFFUSION SIMULATION LIMITED
发明人： Baker, Stephen John , Cowdrey, Dennis Alan , Olive, Graham John , Wood, Karl Joseph
IPC分类号： G06F15/72
CPC分类号： G06T1/60 , G06T15/00 , G09B9/301
摘要： An apparatus for generating an image to be displayed on a display screen from data defining a model including a plurality of opaque and translucent features. The image is intended to represent a view of the model from a predetermined eyepoint and is made up from an array of screen space pixels to be displayed by a raster scanning process. Each pixel is of uniform colour and intensity, and the pixels together define an image area. The image area is divided into an array of sub-areas each of which covers at least one pixel. For each feature in the model that is potentially visible from the eyepoint, a test is conducted to determine which of the sub-areas is at least partially covered by that feature. A list of feature identifiers is produced in respect of each sub-area, the list for any one sub-area identifying features which at least partially cover that sub-area. The position in screen space of at least one sampling point within each sub-area is determined. For each sub-area in turn, and for each sampling point a test is conducted to determine which of the features in that sub-area's list cover that sampling point. For each feature which covers a sampling point, a function of the distance from the eyepoint to that feature at the sampling point is determined. Feature describing data is stored for each sampling point within a sub-area, the stored data being indicative of at least the distance of the opaque feature which covers the sampling point and is nearest to the eyepoint and the distance and translucency of at least one nearer translucent feature which covers the sampling point. An output is produced for each sampling point within a sub-area, the sampling point output corresponding to the combined effects of the features identified by the stored data. An output for each pixel within a sub-area is produced, the pixel output corresponding to the combined effects of the sampling point outputs for all sampling points which contribute to that pixel, and the pixel outputs are displayed.

9. 发明公开

EP0611020A2 Image generator 失效
标题翻译： Bilderzeugungsgerät。
公开(公告)号：EP0611020A2
公开(公告)日：1994-08-17
申请号：EP94201376.4
申请日：1989-12-05
申请人： REDIFFUSION SIMULATION LIMITED
发明人： Baker, Stephen John , Cowdrey, Dennis Alan , Olive, Graham John , Wood, Karl Joseph
IPC分类号： G06F15/72
CPC分类号： G06T1/60 , G06T15/00 , G09B9/301
摘要： An apparatus for generating an image to be displayed on a display screen from data defining a model including a plurality of opaque and translucent features. The image is intended to represent a view of the model from a predetermined eyepoint and is made up from an array of screen space pixels to be displayed by a raster scanning process. Each pixel is of uniform colour and intensity, and the pixels together define an image area. The image area is divided into an array of sub-areas each of which covers at least one pixel. For each feature in the model that is potentially visible from the eyepoint, a test is conducted to determine which of the sub-areas is at least partially covered by that feature. A list of feature identifiers is produced in respect of each sub-area, the list for any one sub-area identifying features which at least partially cover that sub-area. The position in screen space of at least one sampling point within each sub-area is determined. For each sub-area in turn, and for each sampling point a test is conducted to determine which of the features in that sub-area's list cover that sampling point. For each feature which covers a sampling point, a function of the distance from the eyepoint to that feature at the sampling point is determined. Feature describing data is stored for each sampling point within a sub-area, the stored data being indicative of at least the distance of the opaque feature which covers the sampling point and is nearest to the eyepoint and the distance and translucency of at least one nearer translucent feature which covers the sampling point. An output is produced for each sampling point within a sub-area, the sampling point output corresponding to the combined effects of the features identified by the stored data. An output for each pixel within a sub-area is produced, the pixel output corresponding to the combined effects of the sampling point outputs for all sampling points which contribute to that pixel, and the pixel outputs are displayed.
摘要翻译：一种用于从定义包括多个不透明和半透明特征的模型的数据生成要在显示屏幕上显示的图像的装置。图像旨在从预定的眼点表示模型的视图，并且由屏幕空间像素的阵列组成以由光栅扫描处理显示。每个像素具有均匀的颜色和强度，并且像素一起限定图像区域。图像区域被划分成每个覆盖至少一个像素的子区域的阵列。对于模型中从眼点可能看到的每个特征，进行测试以确定哪个子区域至少部分被该特征覆盖。产生关于每个子区域的特征标识符的列表，用于识别至少部分地覆盖该子区域的特征的任何一个子区域的列表。确定每个子区域内的至少一个采样点的屏幕空间中的位置。依次对每个子区域，对于每个采样点进行测试，以确定该子区域列表中的哪一个特征覆盖该采样点。对于覆盖采样点的每个特征，确定从采样点处的眼点到该特征的距离的函数。对于子区域内的每个采样点存储特征描述数据，所存储的数据至少指示覆盖采样点并且最接近目标点的不透明特征的距离以及至少一个较近的距离和半透明度半透明功能覆盖了采样点。为子区域内的每个采样点产生输出，采样点输出对应于由存储的数据识别的特征的组合效果。产生子区域内的每个像素的输出，显示对应于对该像素有贡献的所有采样点的采样点输出的组合效果的像素输出和像素输出。

10. 发明公开

EP0576427A1 FLIGHT SIMULATOR 失效
标题翻译：飞行模拟器。
公开(公告)号：EP0576427A1
公开(公告)日：1994-01-05
申请号：EP91920559.0
申请日：1991-11-26
申请人： REDIFFUSION SIMULATION LIMITED
发明人： MURRAY, Paul, Michael The Oast House Tinley Lodge
IPC分类号： G09B9
CPC分类号： G09B9/30 , G09B9/14 , G09B9/46
摘要： On décrit un simulateur de véhicule dans lequel une première plateforme mobile (35) est entraînée en translation et en rotation depuis une position de référence. Une station de simulation d'utilisateur est placé sur la première plate-forme mobile, la station d'utilisateur définissant une position des yeux prédéterminée et un champ de vision prédéterminé vue depuis la position des yeux, par rapport à la station d'utilisateur. Une surface d'affichage (37) est montée sur une deuxième plate-forme mobile (38) de manière à être dans le champ de vision, et la deuxième plate-forme mobile (38) est entraînée de manière à maintenir une position relative prédéterminée entre la position des yeux et la surface d'affichage (37). Une image est projetée de manière à être observée depuis la position des yeux par l'intermédiaire de la surface d'affichage (37). La surface d'affichage est sensiblement sphérique et la deuxième plate-forme mobile (38) est entraînée en fonction des translations de la position des yeux, de sorte que la position des yeux par rapport au centre de la surface d'affichage sphérique (37) reste sensiblememt constante; ladite plate-forme est égalememt entraînée en fonction des rotations de la première plate-forme mobile (35) autour de la position des yeux, de sorte que cette deuxième plate-forme mobile (38) est maintenue sensiblement stationnaire. La surface d'affichage (45) s'étend jusqu'à un périmètre qui se trouve à l'extérieur du champ de vision prédéterminé pour toutes rotations éventuelles du premier système de rotation (35) autour de la position des yeux.

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