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robcat2075

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Posts posted by robcat2075

    Model to Print

    in Animation:Master

    Posted

    To make an orthogonal camera that sees a 8.5 inch wide view we can use this equation

    width in cm = 200 * (100/focal length) 

    or  width = 20,000/focal length

    Algebra leads us to this equation... focal length = 20,000/width

     

    convert inches...  8.5" * 2.54 = 21.59cm

    We want a view width of 21.59 cm

    20,000/21.59 = 926.35

    inputting a focal length of 926.35 into the orthogonal camera creates this view which does appear to be 8.5 inches wide

    image.png

     

    You can put any pixel resolution into the camera and it will not change the width of the view.. The focal length is what changes the width.

    If you put in a 2550 pixels that will render the 8.5" wide view with 2550 pixels.

    However... A:M tags all renders with a DPI of 72. You will need to take the A:M render into a photo app that can alter the document's DPI setting as shown above and set it to 300

    Model to Print

    in Animation:Master

    Posted

    What program are you printing from?

    The DPI of your printer doesn't matter.

    What matters is how many DPI your document believes itself to have.

     

    Here are two JPGs printed out.

    Both are 100 pixels wide but they print out at different sizes because they have different DPI information as part of the data stored in their JPG file format.

    And I don't even know what the DPI of the printer is.
     

    twoprints.jpg

    Model to Print

    in Animation:Master

    Posted

    Kevin asks...
     

    Quote

     

    PixelstoInches.jpg.5887e0549a5517eebdcb6504fee585c6.jpg

     

     

     

     

    That chart presumes a standard of 300 dpi. But modern printers often do more... or less.  The original Mac printer did 72 dpi? Laser printers do 1200 dpi and yet print 300dpi documents appropriately, without shrinking them to 1/4 their intended size.

    That is why the document you are printing needs to contain its own dpi ( or ppi) data so the printer driver can interpolate your pixels to the printer's dots.

     

    Quote

     

    According to that chart, 8.5 x 11 is equal to 2550 x 3300 pixels.

    So how could this be rendered in A:M with Ortho. camera setting?

    Could I set the camera like below I wonder. An Orthog. Camera at 100 focal length

    and then set to 2550 x 3300?? 

    Camera settings.jpg

     

     

    The orthogonal camera set to "focal length" of 100 always sees a width of 200 cm (100cm on each side of the center) regardless of the  "resolution" that is set.

    2550 pixels spread across 200 cm is only 12.75 per cm or 32.385 pixels per inch.

    More to come...

     

     

     

     

     

     

    Model to Print

    in Animation:Master

    Posted

    The short answer will be to take the render from A:M into a photo app that can set the document's "pixels per inch" value such that the number of pixels in your image that represented one inch are now thought by the Photo app to be an inch's worth of space when you go to print.

    In Photoshop the dialog looks like this. Notice that "Resample Image" is OFF. We do not want this operation to change any pixels.

    image.png

     

    A:M can produce a render with a known number of pixels per centimeter of model space by shooting the object in a chor with a camera set to "orthogonal"

    It turns out that an orthogonal camera set to ANY resolution where width and height are equal and has "Focal length" set to 100 will have a field of view that is 200 cm by 200 cm

     

    I have not tested this but I believe that means the width in cm of the field of view will equal 200 * (100/focal length)

     

    convert jpg to avi

    in Open Forum

    Posted

    4 minutes ago, Madfox said:

     That was my second thought. But I am affraid I get another lightning outcome.

    I don't know what that means.

    The descriptions are not making sense.

     

    Quote

    the fifth part suddenly scrambles up to a 4/5 screen error.

    I don't know what that means.

    Quote

    First I did a Netrendering with 7 cores for 13 seconds animation. This took 4:24:00. 2340 frames.

    2340 frames? Something is seriously wrong.

    13 seconds of animation at 30 fps should be 390 frames

    At 25 fps (PAL) it will be 325 frames

    At 24 fps (film) it will be 312 frames

     

     

    I still don't understand what you are trying to do that isn't working

    You have a sound track. You put it in animation:Master and made animation to match it. You rendered frames in NetRender.

     

    Take the image sequence and your sound track to your video editing program and sync them together there. That is the standard way to do it.

     

     

    Creating Exact Angles?

    in Animation:Master

    Posted

    Anonymous asks...
     

    Quote

    Is there a way to determine an exact angle in Hash? A 90 degree angle is straight up, but I'm thinking like 45 degree, or say.......37 degrees?

    You can set exact angle in the bone's properties.

    Combinations of X Y and Z can be confusing. It is best to work from bones that start from straight vertical or horizontal orientations.

    image.png

    View Settings not working?

    in Animation:Master

    Posted

    It used to be possible to click on the View Setting at the lower right corner of the interface and get this dialog...

    image.png

    But now it doesn't work. And it doesn't work in previous versions of A:M either, although it did in the past.

    Does this happen for anyone else?

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