Renderers Jun 12 1992

Here is the current list of renderers which can be set in the AN icon.
Generally, the four options apply to all the renderers...

* grey scale renderers:
0001 Amiga B&W Halt  (stop after each frame is merged)
0002 Amiga B&W Pass  (pause after merge, then continue)
0003 Amiga B&W Save  (save frame as IFF, drawing on visible screen)
0004 Amiga B&W Speed (save as IFF, but don't draw on screen)

* black and white: one plane 
0011 Amiga 1 plane   
0012 Amiga 1 plane   
0013 Amiga 1 plane   
0014 Amiga 1 plane   

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Notes


* "live-style 5-plane color" (hi-res disabled)
* this is 2 bits of red, 2 bits of green , 1 bit of blue.
0021 Amiga Color Halt
0022 Amiga Color Pass
0023 Amiga Color Save
0024 Amiga ColorSpeed

* full 24-bit output to IFF24 pseudo-compressed files
0031 IFF 8 Color Halt - echos in live color
0032 IFF 8 Color Pass - ditto
0033 IFF 8 Color Save - ditto
0034 IFF 8 ColorSpeed - a time saving screen is shown instead of the real
                        image (which is unshowable anyway..)

0035 PI interface renderer... see next page for details!



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0035 Black Belt Public Interface renderer. You'll be prompted for a string
   to pass to CLI. $ will be replaced by the file name (e.g. 00000),
   # by the "Jackin address" By default,I call the Wraud renderer
   (in my impi: directory). Through ARexx, you can set this up beforehand.
   This is done by setting the value RENDERSTR to the string you want
   and saying "PUTVSTRS"
   (I realize, it might be smarter to save the string with the file.)

here are some useful PI interface calls:
     to call BB's Jpeg converter, say
     impi:WrJpg >$.jpg -j # -E -q 80

     to call jhhl's tiff converter:
     impi:WrTiff -j#  -f$ 

     to call jhhl's Audio renderer:
     impi:WrAud -j# -f$ -x0 -s15040 -h2000 -t4


     to call jhhl's hame converter:
     impi:WrHame -j#  -f$ 


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* HAM-E Black and White renderer
* directly renders a HAM-E frame : Must be "lo-res" and 
* will be forced to  320 pixels wide to accomodate the HAM-E cookie
0041 HAM-E B&W   Halt
0042 HAM-E B&W   Pass
0043 HAM-E B&W   Save
0044 HAM-E B&W  Speed

* HAM-E 252 color renderer
* directly renders a HAM-E frame : 6 red * 7 green * 6 blue
* this does pick up the dither bits in the AN_flag
0051 HAM-E Color Halt
0052 HAM-E Color Pass
0053 HAM-E Color Save
0044 HAM-E Color Speed


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     The workspace renderer:
You can also animate the wireframe view of your animation by typing "a".
This will draw and accumulate subframes, compress the finished frames and
store them so they can be replayed. Like the other renderers, hitting the
space bar will stop the process. The compressed frames are replayed in
the yellow plane, which can be turned to black with "alt-\".
 To play it back, you can use the following
keys:
 shift =  : Go to first frame (and show it)
 =        : go forward 1 frame
 -        : go back 1 plane
 shift -  : free the animation
 alt   =  : play the animation (about 15 fps)
Thus, an alt-\,alt-= combination runs the workspace animation.

Remember that shift-5 allows rendering from the view's point of view,
so this can make a better mock-up.

Setting the render type to "0" in the AN pum will cause the frames to
be saved as ILBM frames in VFRAMES:, should you wish to save these images.

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Notes:
 A renderer usually shows the image on the Amiga screen it
creates.  While rendering, the titlebar on the rendering screen
tell you the status of the current render:  the "frame number",
which is used as a file name (with .24 tacked on the end if 24-bit
IFF), the "subframe number" in the case of motion blur stuff, the
"current time", accurate to the frame, but not the subframe, and
the name of the renderer.  While this is going on, the Pointer changes
to " R" , meaning rendering  , "M", meaning merging, where the 
frame is added to the "Merging frame", and "F" meaning the frame is being 
written out (or just displayed in those cases where it is not written)

If you click on the frame, certain key commands are activated:
the arrow keys will adjust the origin of the frame (useful for overscan
images), the space key will stop the render and the DEL key will hide
or reveal the titlebar. Note also that during rendering, the Workscreen
titlebar will be revealed so you can more easily multitask.

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Henry Lowengard, jhhl-at-panix.com / 324 Wall St. Apt 5 / Kingston NY 12401
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