Amber VRML Browser v1.0 ALPHA
by
DIVE Laboratories, Inc

Requirments:  Windows NT 3.5 (Intel) with 16 Megs RAM.

INSTALLATION INSTRUCTIONS:

Create a directory on your hard disk called BROWSER.
Unzip browser.zip into that directory.
Under Netscape, add a helper application of MIME file type x-world, subtype
        x-vrml.  Set this type to launch the BROWSER.EXE file you installed
        above.
Install BROWSER.EXE as a program item.
Click on the BROWSER.EXE icon and test the application with the supplied .wrl 
files.


MOUSE CONTROLS (selectable under the CHANNEL menu option):

PLATTER MODE (Default)

The imagine the world as a plate.  With the left button down you can move
in or away from the center of the world based on the mouse pointer's position
above or below the middle of the browser window.  With the right mouse button
down, moving the mouse pointer left or right in the window rotates the world 
in the respective direction.  With the right mouse button down, moving the 
mouse pointer up or down in the window pitches the world in the respective
direction.

FREE FLIGHT MODE

Relative to the center of the BROWSER.EXE window:

        When the LEFT MOUSE BUTTON is held down, if the mouse pointer is
        positioned above the center of the window, then the viewpoint moves
        foward at a speed relative to the distance between the pointer and
        the center of the screen.  If the mouse pointer is positioned below
        the center of the window, then the viewpoint moves backwards at a
        speed relative to the distance the pointer is from the center of the
        window.  If the mouse pointer is to the left of the center of the
        window, the viewpoint yaws left at a rate relative to the distance
        the pointer is from the center of the window.  If the mouse pointer
        is to the right of the center of the window, the viewpoint yaws right
        at a rate relative to the distance the pointer is from the center of
        the window.

        When the RIGHT MOUSE BUTTON is held down, if the mouse pointer is
        positioned above the center of the window, then the viewpoint moves
        up at a speed relative to the distance between the pointer and the
        center of the window.  If the mouse pointer is positioned below the
        center of the window, then the viewpoint moves down at a rate speed
        relative to the distance the pointer is from the center of the window.
        If the mouse pointer is to the left of the center of the window, the
        viewpoint moves left at a speed relative to the distance the pointer
        is from the center of the window.  If the mouse pointer is to the
        right of the center of the window, the viewpoint moves right at a rate
        relative to the distance the pointer is from the center of the window.

        When the LEFT AND RIGHT MOUSE BUTTONS are held down, if the mouse
        pointer is positioned above the center of the window, then the
        viewpoint pitches up at a rate relative to the distance between the
        pointer and the center of the window.  If the mouse pointer is
        positioned below the center of the window, then the viewpoint
        pitches down at a rate relative to the distance the pointer is from
        the center of the window.  If the pointer is to the left of the center
        of the window, the viewpoint rolls left at a rate relative to the
        distance the pointer is from the center of the window.  If the pointer
        is the to the right of the center of the window, the viewpoint rolls
        right at a rate relative to the distance the pointer is from the
        center of the window.

        When no buttons are pushed the viewpoint remains stationary.

Channel Options
        Free Fly-  Selects between the Platter Mouse Mode (Default) and
                the Free Fly Mode.
        Light Control-  Lets you add and modify lights in a VRML scene.
                A light must be selected from the dialog before being edited.
        Clipping Planes-  Lets you modify the Near and Far clipping planes
                as well as the viewing angle.
        Background-  Allows you to change the background color being rendered.

Render Options
        As VRML Object-  Tells the browser to render the static VRML tree.
        As Amber Object-  Tells the browser to render the Amber VRML 
                translation tree. This also allows the scene to be capable
                of being rendered as points or triangles.
        Wireframe-  When selected, renders the scene as wireframe.  Otherwise,
                the scene is rendered as filled polygons.
        As Points-  Renders the scene as a point cloud.  Must have rendering
                mode set to render the scene as an Amber object.
        As Triangles-  Renders the scene as triangles.  Must have rendering
                mode set to render the scene as an Amber object.
        As Polygons-  Renders the scene as multipoint polygons.
        Show Normals-  Displays the normals for each point as a line segment 
                extending from the point.
        Use Shading-  Turns shading on or off.
        Performance-  Gives performance in polys per second.

i-glasses Option:
        Activate-
                Set display resolution to 640x480.
                Connect the head tracker to Com 1 or Com 2.
                Power up the VIO PC Interface box and HMD.
                Activate the i-glass option.  
                You will be prompted with a dialog box.
                        Hit "COM 1" if the VIO head tracker is connected to 
                                Com 1.
                        Hit "COM 2" if the VIO head tracker is connected to 
                                Com 2.
                        Hit "Cancel" if you do not have a VIO headset 
                                connected.
                        If you do not wish to have the tracker polled,
                                select "COM 1" or "COM 2" without the
                                PC Interface Box tracker cable plugged in.
                If "COM 1" or "COM 2" is hit a dialog box of the scene will be 
                        created in the browser window.  
                Hit the letter "O" to expand the dialog box to full screen.
                Hit the letter "C" to shrink the dialog box to original size.
                Deactivate the i-glass option to go into standard browser      
                        mode.
        Filter-  Turns head tracker filtering on or off.

Help Option:
        About-  Give the contact information and URL for
                DIVE Laboratories, Inc.
