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  1. #1
    Regular Contributor
    Join Date
    Feb 2005
    Location
    Kista, Sweden
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    267

    How to set the texture coordinates when floats are not allowed in M3G?

    Floats are not allowed as texture coordinates in M3G. Doesn't this limit how the appearance of the textures can be configured? I mean in OpenGL you can set coordinates like

    texels[46+j] = 0.5f;
    texels[47+j] = 0.33f;

    This determines how detailed the textures look. If you can only set 1 and 0 as the texture coordinates, I assume there is no way to configure how detailed the textures should be?

  2. #2
    Nokia Developer Expert
    Join Date
    Oct 2008
    Posts
    40

    Re: How to set the texture coordinates when floats are not allowed in M3G?

    Check M3G setTexCoords specs and you will notice that you can use scale and bias to scale your integer texture coordinates. This means if you use 16-bit coordinates value 256 could mean 1.0f with proper scale.

    It's similar to OpenGL ES fixed point coordinates.

  3. #3
    Regular Contributor
    Join Date
    Feb 2005
    Location
    Kista, Sweden
    Posts
    267

    Re: How to set the texture coordinates when floats are not allowed in M3G?

    Thanks, it worked!

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