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Belgian Amiga Club - ADF Collection
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BS1 part 65.zip
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BS1 part 65
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Caligari II v2.22.adf
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ReadMe!
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15-Jan-92
Changes to Caligari II v2.22 which are too new for the manual...
The following are a number of changes made to Caligari II 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.