The dividers between the 4 view windows can be dragged to resize the views. The default view windows show Front, Left, Top and 3D camera angles onto the model space. View windows By default, AC3D starts with three two-dimensional (2D orthographic) view windows and a single three-dimensional (3D) window. Put selected objects into a group/remove the group object flip the section about this axis scale the selection uniformly Maximize a single view or view ALL together Select everything clear the selection duplicate the selection use AC3D’s internal clipboard Toolbar This contains buttons for some of the most commonly used functions. When the mouse is being used to interact with models, this area will also display current positions, distances moved and other related information. The top of the control panel shows information about the current selection. It also contains the surface-type controls, the palette of materials and the object name field. There’s also the menu and toolbar at the top and an information bar along the bottom.Ĭontrol panel This is where the main controls over the selection and draw modes are located.
ZOOM IN AC3D PLUS
Windows/Views AC3D has a control panel on the left, plus 4 view windows. When browsing through the menu items, the function on each item is described in the message text at the bottom of the AC3D window. This feature can be switched off from File->Settings. Small ‘tooltip’ windows will popup when the mouse pointer rests over a button or field label. Getting help User interface components in AC3D have ‘balloon help’. You can drag, resize or rotate this box to adjust the contents A texture coordinate is a two dimensional (u,v) value which defines the point on the 2D image.īounding box When you make a selection of objects, surfaces or vertices, a green box outlines it. Texture coordinates When the vertex of a surface is drawn, a texture coordinate specifies the position of a texture image to map to that point. The images are usually from graphics files such as gif, jpg, bmp etc. Texture Graphical images can be mapped onto the surfaces of an object. Material A material defines the color of a surface and also the attributes that define the way it will react to light e.g. In ‘Group’, selecting all or part of an object automatically selects the top level object. This allows manipulation of objects, even if they are part of groups.
In ‘Object’, whole objects are selectable. In ‘Surface’, operations are performed on one or more selected surface. In ‘Vertex’, individual vertices can be selected and adjusted. Select-mode The select mode allows control over the level of editing in AC3D. Use the ‘Ungroup’ function to separate the objects. Groups are created by selecting two or more objects and selecting ‘Group’ from the edit menu or toolbar. Group A group is a special object that has no surfaces or vertices but has other objects as children. It also has other attributes such as a name and texture. Object An AC3D object is a list of vertices, and surfaces that use these vertices. A surface is defined as facing the viewer if the vertices can be seen in an anti-clockwise direction. Surface normals are automatically calculated by AC3D. Normals are used in lighting calculations. Surface normal A ‘surface normal’ specifies the direction a surface is facing. Vertices can be shared between surfaces in the same object. Each vertex referenced in a surface has an associated Texture Coordinate. Surfaces have a material attribute, which defines the color and quality (for lighting purposes). It is more efficient to draw single sided surfaces and makes more sense when used as part of an object such as a sphere (where you can’t see the other side of the surfaces). Two-sided surfaces will be visible from both sides. If a surface is set to be single-sided, it will only be visible from the front. The type of a surface defines how the surface is drawn and this can be easily changed. Surfaces are one of three types polygons, lines or polygon outlines. Surface A surface in AC3D is a sequence of vertices. A vertex is usually part of one or more Surfaces, but need not be. A vertex is always owned by a single object they cannot be shared between objects. More than one vertex can occupy the same position in 3d space. It’s specified by three coordinates x, y and z. It is used to create 3D models for simulations, games, rendering ray-traced images and for scientific and general data visualization.ĪC3D runs on a wide range of standard hardware and is available across a number of popular platforms.ĪC3D terminology Vertex A vertex is a single point in 3d space. Introduction Welcome to AC3D AC3D is designed to make the construction of 3D objects fast and easy.
ZOOM IN AC3D MANUAL
Version 6.5 User Manual © Copyright Inivis Limited 2009
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