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-
- 27-Apr-92
- NOTE:
- There are now two versions of the Installation script for
- Caligari2. This should fix the problems that users of WB 1.3 have
- had when trying to install Caligari. If you are using WB 1.3, use
- the 1.3_Install. If you are using WB 2.0, then use the 2.0_Install.
-
-
- 24-Dec-91
-
- Changes to Caligari2 which are too new for the manual...
-
- The following are a number of changes made to Caligari2 after
- the manual was printed and some corrections to errors in the
- manual:
-
-
- FILEMENU
-
- The File Menu now has a row of buttons at the bottom for
- selecting disk volumes. These buttons are present in all versions
- of the File Menu except "Add Obj". This is because all objects
- for a particular scene must be in the same directory. If you
- were to load objects into the scene from various directories, the
- next time you loaded the scene Caligari would be unable to find
- all of the objects. A bug that was present in previous versions
- which caused files with names longer than about 13 characters to
- be cut has been FIXED. The result of this bug was that the
- object/scene/polygon would not appear in the list of files the
- next time the file menu was brought up.
-
- VideoScape objects whose filenames have the ".vs3d" extension
- are now also recognized by the File Menu in addition to the
- standard ".geo" extension.
-
-
- OBJECT DESIGN
-
- The "Axes" button has been moved to the "Navigation" menu. It
- is now available when in "Num" mode.
-
- We have several new cursors which are used when appropriate in
- Object Design. For example, when Gluing objects a '?' cursor
- appears so you know the program wants to know what to glue to.
- There are also new Point-Edit and Slicing cursors.
-
-
- OBJECT DESIGN QUICK RENDER
-
- Face picking is now much more efficient and it is more
- difficult to accidentally reverse a face and create a bad object.
- When in "Face" mode, there is a toggle between "Set Color" and
- "Reverse" mode. In "Set Color" mode, any faces which you click on
- will be immediately re-rendered in the current color. In "Reverse"
- mode, any faces clicked on will be reversed, and clicking on the
- same face again will re-reverse it to it's original state.
-
-
- TOOL MENU
-
- Due to popular demand, the "Shell" button is back again. NOTE:
- under AmigaOS 2.0 it is not recommended that the "Shell" button be
- used if Caligari is launched from some of the "program launchers"
- that are floating around in the public domain. Many of these
- use the arp.library to launch the Caligari process, and this
- is not completely compatible with AmigaOS 2.0. It normally does
- not cause a problem, but it may when bringing up a Shell.
-
-
- ANIMATION
-
- "Set" as described in the manual will only set an Obj keyframe
- if "Obj" is selected. What is not mentioned is that now clicking
- on "Set" with "Eye" selected will only create a keyframe for the
- Eye, and NOT the objects.
-
- "Unset" has been enhanced to allow greater functionality and
- to prevent accidental destruction of keyframes. Whenever you click
- on "Unset" with "Eye" selected you will be prompted as to whether
- or not you are sure you want to do it. If "Obj" is selected, you
- have the option of "Unsetting" either the current object, all
- objects or nothing.
-
- Please note that in the "I/O" menu the buttons which are
- shaded out do not make sense in Caligari2 because they only work
- with 24 bit files and/or true 24 bit framebuffers. There is no
- real functionality lost.
-
- In the documentation for the SETATTRIBUTES command it is
- stated that the range of the HUE parameter when in HSV color
- mode is -2.0 to +2.0. This is incorrect. The actual range
- is from 0.0 to 2 * 3.14.
-
-
- BROADCAST RENDERING MODULE
-
- A "Disp Image" button has been added to the base broadcast
- menu. This button will cause Caligari to display the currently
- buffered image on the selected frame buffer. For more information
- see the accompanying file "FrameBuffers".
-
- Texture Mapping has been vastly improved over the description
- given in the manual. Previously it was only possible to texture
- map special cases of objects. It is now possible to apply textures
- to any type object.
-
- All objects created in the Extruder have some type of default
- texture mapping which varies depending upon how the 2D polygon
- was swept through space:
-
- a) Flat objects have a Planar projection applied to both
- sides of the flat 3D polygon.
-
- b) Extruded objects have a Planar texture projected through
- the World Z axis when the object appears in the Design
- Space.
-
- c) Objects which are lathed on an edge a full 360 degrees
- have a single Spherical projection applied to the
- surface.
-
- d) If the object is lathed less than 360 degrees. Then it
- has TWO Toroidal projections which are essentially
- mirrors of each other.
-
- e) The last possible case of object is that which is lathed
- 360 degrees, but not on an edge. In this case the texture
- is projected Toroidally FOUR times; twice on the
- "outside" of the object, and twice on the "inside" of the
- object. Again these textures will appear essentially as
- mirrors.
-
- Any object which is imported from the VideoScape, Sculpt4D or
- LightWave file formats has a Planar Z projection.
-
- Currently, only the "Square", "Sphere" and "Bullet"
- primitives have a default texture mapping.
-
- In the Brender "Texture Controls" menu the default Extruder
- mapping can be overridden with any one of a variety of mappings.
- Different types of mappings may be applied to different materials
- in the same object. The Brender mappings are as follows:
-
- a) Default; use the mapping created by the Extruder in Object
- Design. NOTE: primitive objects which do not have any
- default mapping will not be texture mapped. The same
- applies for many pre-2.1 Caligari objects.
-
- b) Planar; similar to the Planar projection created in the
- Extruder for Extruded and Flat objects. This projection
- will "push" the texture map through the space occupied by
- the object in the specified axis and coordinate space.
-
- c) Cylindrical; in this mode, the texture is "wrapped around"
- the object parallel to the specified axis and coordinate
- system. The texture will appear on the object surface
- twice, each time spanning 180 degrees of the cylindrical
- surface.
-
- d) Spherical; similar to Cylindrical, but the texture is not
- parallel to an axis. Instead, the "top" and "bottom" of
- the texture meet the specified axis in it's coordinate
- space.
-
- e) Swimming; is a Planar projection which is fixed to the
- screen. Thus only part of the texture is mapped on the
- object, according the object's position, size, and
- orientation.
-
- f) Per Facet; is a Planar projection where each face has
- it's own individual copy of the texture map. The "top"
- "bottom" of the texture map corresponds to the selected
- axis/coordinate space. In faces which are not rectangular,
- a portion of the texture map will be clipped.
-
-
- BRENDER ATTRIBUTES MENU
-
- It is possible to pick objects directly by name in the "Attrib"
- menu by typing in the object name in the field at the top of the
- menu and pressing return.
-
- The "Facet°" field is for specifying the threshold between facet
- and smooth shading when in Auto Facet mode. Large numbers create
- smoother objects, while smaller values create object with a more
- faceted appearance. The default value is 20 and works in 90% of the
- cases. This value can be animated with the SETATTRIBUTES command.
- See the manual for more information on SETATTRIBUTES.
-
-
- BRENDER IMAGES MENU
-
- A new menu has been added to aid in working with framebuffers
- and images called "Images". From this menu, the following options
- are available:
-
- a) "View Image" will present a file menu from which you may
- select the name of any Caligari .6rn/.txr/.e2d 32 bit image
- file or any non-24 bit IFF file for display. If the file is
- a Caligari .6rn/.txr/.e2d file it will be loaded into the
- framebuffer and processed, just as though it had been
- rendered at that moment. IFF images are simply loaded and
- displayed. If the image is in HAME or DCTV format, it
- will display correctly without special processing.
-
- b) "Save Image" allows you to have Caligari automatically save
- an image after it has been rendered in Brender. This option
- defaults to OFF.
-
- c) "Set Output Image Name" presents a file menu for either
- Selecting the name of the image to be saved after
- rendering by brender or Typing in a new name for the image.
-
- d) "Load Palette" only functions for HAM and HAME and permits
- you to load a previously saved HAM or HAME image palette.
- This function is useful when animating a sequence of images
- to be sure that all images are rendered using the same
- palette. Typically this is used when a series of frames
- is rendered, but for some reason all frames cannot be
- rendered in a single Caligari session. When this happens,
- the palette can be saved using the "Save Palette" button
- before exiting Caligari. To continue rendering the same
- animation with the same palette, load the palette and
- then go to the display menu and be sure that the "Dithr"
- button is off. Now when you continue rendering all frames
- will appear similar and the animation will not appear to
- "flicker" when compressed and played back. For more
- information on the function of the "Dithr" button, see the
- accompanying file "FrameBuffers".
-
- e) "Save Palette" saves the current HAM or HAME palette. See
- "Load Palette" above for more information.
-
- f) "Clear Image" will erase the contents of the current frame
- buffer to black. See the accompanying file "FrameBuffers"
- for more information on how the "Virtual FrameBuffer"
- works.
-
-
- BRENDER DISPLAY MENU
-
- The manual incorrectly states that it is possible to do
- Foreground and Background merging. This is not possible since
- Caligari2 does not work with 32 bit images and our merger ONLY
- works with 32 bit images. You will notice that the buttons are
- present, but since they don't work they're shaded out. This may be
- changed in a future upgrade.
-
- The "Wire" button is not present, because color wireframe
- images can only be output in 24 bits.
-