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can OSG deal with BC6 and BC7 compression formats?


 
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cbuchner1
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PostPosted: Sun Jul 09, 2017 11:28 pm    Post subject:
can OSG deal with BC6 and BC7 compression formats?
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Hi,


Can OSG load BC6 (BPTC_FLOAT), BC7 (BPTC) compressed textures from DDS files and upload these to the GPU, provided that the graphics hardware and driver are capable of dealing with this format?


If such support is present, what is the minimum OSG version to support this?



Christian

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Chris Hanson
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PostPosted: Sun Jul 09, 2017 11:28 pm    Post subject:
can OSG deal with BC6 and BC7 compression formats?
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On Wed, Jul 5, 2017 at 8:08 AM, Christian Buchner < (
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)> wrote:
Quote:
BPTC_FLOAT


I don't know this method, but if OSG did support it, the code would be found near here:


https://github.com/openscenegraph/OpenSceneGraph/blob/3b1212fed59b1024aab289bf7837056c559913e1/src/osgPlugins/dds/ReaderWriterDDS.cpp#L628




  I don't see anything resembling those IDs, so I'm guessing the answer is "no, you'll have to add support there yourself". But I believe OSG should be ABLE to support those if you code it up, and I wouldn't think it'd be too hard.


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