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Thread: RGBA32F texture compression ?

  1. #1
    Junior Member Newbie
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    May 2013
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    RGBA32F texture compression ?

    Hi,

    In a project, I'm using big RGBA32F textures (4096*4096), and also R32F textures (one component) and RG32F textures (two components).

    Is there any DXT format variant which support these pixel formats ?

    Thanks.

  2. #2
    Senior Member OpenGL Guru Dark Photon's Avatar
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    Check out ARB_texture_compression_bptc. In particular BPTC_FLOAT (aka BC6H in D3D).. Also mentioned in the OpenGL 4.3 Specification.

    Keep in mind though that that same extension also defines a "BPTC" compressed texdture format (aka BC7 in D3D), which unlike BPTC_FLOAT, is a low-dynamic range compressed texture format.
    Last edited by Dark Photon; 02-14-2014 at 02:31 PM.

  3. #3
    Advanced Member Frequent Contributor arekkusu's Avatar
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    Nov 2003
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    Also check out R11F_G11F_B10F and RGB9_E5, both part of GL3.0; more widely available than BPTC.

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