I need Help with making a License Plate for a Model

Turk_WLFTurk_WLF Posts: 32
edited December 1969 in Carrara Discussion

I'm having a hard time with the raised Letters/Numbers part of the License Plate. I have been trying to use a gray scale bitmap in the bump channel but I don't see difference in height. I have tried using 60% for the lower outer ring, 50% for the base of the Plate and 0% for the Lettering (% of Black) and 100% for the lower outer ring, 50% for the base of the Plate and 0% for the Lettering (% of Black). Each color does have sharp edges, if that makes a much of a difference.

Link to a picture of a real License Plate...

http://upload.wikimedia.org/wikipedia/en/f/fc/Kansas_license_plate.jpg


Thanks,

Comments

  • evilproducerevilproducer Posts: 7,578
    edited December 1969

    Might it work as a displacement map instead?

  • Turk_WLFTurk_WLF Posts: 32
    edited December 1969

    Might it work as a displacement map instead?

    I never had much luck with displacement maps at all. When I tried it this time it went all black for me.

  • de3ande3an Posts: 518
    edited August 2012

    Turk_WLF said:
    I'm having a hard time with the raised Letters/Numbers part of the License Plate. I have been trying to use a gray scale bitmap in the bump channel but I don't see difference in height. I have tried using 60% for the lower outer ring, 50% for the base of the Plate and 0% for the Lettering (% of Black) and 100% for the lower outer ring, 50% for the base of the Plate and 0% for the Lettering (% of Black). Each color does have sharp edges, if that makes a much of a difference.

    Link to a picture of a real License Plate...

    http://upload.wikimedia.org/wikipedia/en/f/fc/Kansas_license_plate.jpg


    Thanks,


    A bump map should work pretty well. It doesn't create actual geometry, just a lighting effect at render time.

    Use a Gaussian Blur on your black and white bump map to simulate rounded edges.

    Here's an image map, followed by the bump map, followed by the Carrara render.


    (Click the image for a larger version.)

    license_plate_layers.jpg
    553 x 825 - 75K
    Post edited by de3an on
  • RoygeeRoygee Posts: 1,885
    edited December 1969

    I took the liberty of downloading your example image - simply made a greyscale and reversed - used a grid set to the proportions of the original. Placed the original in the colour channel and the greyscale in the bump channel.

    render.jpg
    640 x 480 - 28K
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