A computer graphics apparatus includes a walk-through function to simulate with a computer the concept of walking through a structure such as a building. Display processing time and calculation processing time for one frame of a computer graphic image are improved by an input unit which receives a viewline moving instruction to move a viewline of a computer image. A viewline control unit determines positions and directions of the viewline while a storage unit stores computer graphics data including three-dimensional data of objects, walk-through attribute data and viewline data. An image generation unit then generates images including animated images based on the position of the viewline and the computer graphics data. The resultant images are then displayed on an image display unit.
An information visualization system allows carrying out a three-dimensional walk through and hyperlink operation with little processing and allows automatically incorporating modifications into the image. A partial image generating device that forms the information visualization system generates a walk through image from three-dimensional space shape information and walk through path information, and converts same into a plurality of partial images that are partitioned at branching points. A branching information generating device generates branching information for the partial images. A hyperlink information generating device generates hyperlink information based on the visualized object information in the three-dimensional space. A partial image selection device sends a partial image switching instruction in order to switch partial images depending on the path selection of the user. A partial image link play device sends a partial image selection instruction depending on the partial image switching instruction, and at the same time smoothly links and plays the switched partial images.
A method and apparatus for displaying a three-dimensional picture is disclosed. The picture display apparatus includes a display device for displaying a three-dimensional picture, a pointing device for pointing a position in the picture displayed in the display device, a holding device for holding the control information of a plurality of possible stop points pre-determined in a three-dimensional space, and a control device for causing the three-dimensional picture to be displayed on the display device based on the control information of the possible stop points in the three-dimensional space held by the holding device. The possible stop points correspond to positions in the picture pointed by the pointing device. The producer of a virtual reality can easily reflect the intention of a three-dimensional virtual reality, while the-user can easily walk in the three-dimensional virtual reality.
A method and apparatus for displaying a three-dimensional picture is disclosed. The picture display apparatus includes a display device for displaying a three-dimensional picture, a pointing device for pointing a position in the picture displayed in the display device, a holding device for holding the control information of a plurality of possible stop points pre-determined in a three-dimensional space, and a control device for causing the three-dimensional picture to be displayed on the display device based on the control information of the possible stop points in the three-dimensional space held by the holding device. The possible stop points correspond to positions in the picture pointed by the pointing device. The producer of a virtual reality can easily reflect the intention of a three-dimensional virtual reality, while the user can easily walk in the three-dimensional virtual reality.
A virtual object display apparatus displays an object moved in three-dimensional virtual space. A key frame memory section previously stores move data of each part of the object by unit of action of the object's movement in three-dimensional virtual space. A swing calculation section calculates the change of a basis point of the object by unit of action according to the move data of each part of the object. A display position set section calculates the change of display position corresponding to the change of the basis point in three-dimensional virtual space by unit of action. A display section displays the object movement in three-dimensional virtual space according to the display position by unit of action.
An image processing unit includes a shape memory in which object shape data are prerecorded, a processing component which establishes coordinate values for objects in a three-dimensional virtual space based on the shape data in the shape memory, a conversion component which receives the coordinate values from the processing component and converts the coordinate values to a visual field coordinate system based on a prescribed view point, a view point establishment component which establishes a position of the view point based on the situation between an object in the three-dimensional virtual space serving as a predetermined reference and being virtually defined in the three-dimensional virtual space without any input by a user, and which sends the position to the conversion component, and an imaging component which adds a predetermined texture to a shape data of the visual field coordinate system converted by the conversion component.
