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hapter 4 deals with the detail editor. The third sentence says "The drawings in Appendix A show all the menu contents of the Detail Editor". I did not find any appendix A anywhere.

 

 

 

 

 

 

 

Objects may be quick rendered by selecting the option from the editor drop down menu or clicking on the quick render icon. The quick render dialog box has many options. An image of any size may be rendered depending on the amount of RAM available. There are 6 different rendering types available. Trace is short for raytrace which gives the highest quality and is also the slowest. The manual devotes a few pages to the other rendering methods, what they do and when they should be used. I didn't see any mention of pixel aspect ratio in the manual even though it is an option for adjustment. The lighting tab allows the user to turn on a light for rendering purposes. The user can control the color, intensity and angle. The globals tab provides access to settings for the background color and ambient light color. The globals tab also provides for defocusing the image and for loading a global brush and a global backdrop image. The stars/fog tab provides access to settings that allow the user to set a global fog by color, length, top, bottom and allows for fog falloff with height. The stars options include density, size and color saturation. The anti-alias tab provides sliders that allow the user to reduce the effects of jaggies as much as possible. The options tab provides for everything else Impulse wanted the user to have but didn't exactly fit into a neat category. The options tab deals with genlock color, resolve depth, soft shadow element count for raytracing, ground points for the quick modes, etc.

ext the manual goes into the variety of menu options and controls that the detail editor has. I will hit on a few of them. One of the more interesting and powerful features of Imagine is the ability to customize the toolbars. I didn't verify every single one but after a brief examination of what tools are available I suspect that everything on a drop down menu can have an icon associated with it. Of course all the tool bars can be dragged about and placed wherever the user wishes. New tool bars may be created and then selected for whatever specific work is being performed depending on the user's needs. Imagine also has a coordinates feature that provides the user with the location of the cursor in 3 dimensions at all times. Images created in Imagine may have a wide variety of appearances via the view/perspective drop down menu. The edit mode will display a sphere as a simple circle. The color mode will display the sphere as a solid with the base color determined by the user. Wireframe, solid and shaded are also available. Imagine has a zone feature via the view drop down menu. This is analogous to an area render feature that other applications have. The user can select an area of the window to render. This is extremely handy when working on large, complex images. With the zone feature a small portion of a large object can be modified then just that area can be rendered. 2D objects can be imported and converted into Imagine objects via the object/convert image drop down menu. The manual describes how object/new/ground and sphere are special, procedural objects and are different from the primitive objects. Right mouse button support is good in Imagine. The adjacent image shows what controls are available when an object is selected and the right mouse button is clicked. The object is going to be moved in all 3 axis. The small image is what appears when the cursor is at the right edge of a window and the right mouse button is clicked. This allows immediate selection of any window or the quad view.

ext the manual has the user create a sphere primitive, select the pick point selection method and use the lasso to select a small group of points on the sphere in the front view window. The selected points turn yellow. The user is then instructed to look in the top and front view windows and notice that several points are selected there as well. The selection process is thus demonstrated to be 3D in nature. The user then moves the selection around. Holding the shift key allows additional points to be selected. I couldn't figure out how to deselect a point. I would have thought holding down on the alt key or control key then clicking on a point would have permitted this but it didn't. The manual discusses open paths and closed paths. It includes a mini tutorial on open paths. An open path is created. Then the mode/edit path drop down menu is accessed. The manual instructs the user to create a pretzel. I was not able to do this although I did stretch and twist the line around. Next the user creates a plane primitive, places the plane next to the path then selects the functions/conformations/to path drop down menu. The result is the adjacent image to which I added some texture and color. Frankly I think it would be difficult to achieve specific results using this method without a lot of practice. Next the manual deals with deformations. First a plane is created. Then the object/new/deform tool is activated which launches the previously illustrated deform tool dialog box. The OK button is clicked. The user can now observe that the deform tool is a mesh that encompasses the plane primitive. It is important that the deform tool's mesh completely overlaps the primitive being deformed. Next the deform tool is selected then stretched, sheared and twisted. Next the shift key is held down and both the deform tool and the plane are selected. Then the function/deform tool drop down menu is accessed which launches the select deformation tool dialog box. The dtool_3_3_3 icon is selected, the OK button clicked and the image rendered. The adjacent image, above left, reflects the results. The manual states this deformation feature is analogous to the NURBS feature of more expensive 3D modelers. Unlike the conformations to a path feature I didn't have any problems controlling this. Imagine has a check object feature via the object drop down menu. This is to ensure that the object's surface has structural integrity with no overlaps. There is some discussion about the transformation dialog box which is accessible via the object drop down menu. The importance of axis and the proper selection of the correct axis for transformations is discussed at length. Imagine's join function on the object drop down menu turns multiple objects into one object. They do not have to be touching or even near each other. They cannot become unjoined after joining. Imagine can perform skinning operations. The adjacent image, above left, was created by creating a disk, going to the pick point selection mode, selecting the center point then deleting it. This left a circle which was copied and pasted 3 times then each circle was resized. Each circle was selected in turn then the skin feature was used to skin the 4 circles. Imagine has a slice feature however I was not able to get it to work by following the directions in the manual.

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All pages copyright © Roger A. Moncrief, Indepth Reviews, 1996, 1997

Thanks to Judy Gefter, !LuM! and Charles Blaquiere for their advice and counsel, some I heeded and some I didn't.