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kaifeng

Mip map update

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Hi everyone I use GenerateMipSubLevels( ) to generate mipmap, but it same only works one time. when i change the surface0 ( use lock to change ). all mip levels didnot change. Any other API can update mip map? thank for any reply.

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That function creates the mipmap surfaces. Once they're created, that function won't do anything.

If you want to update the mipmaps, you'll need to get each surface level in turn and StrectRect() to it or lock and fill each surface level in turn.

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