RGBA32F texture compression ?
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 ?
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 01:31 PM.
Also check out R11F_G11F_B10F and RGB9_E5, both part of GL3.0; more widely available than BPTC.