To implement hdr rendering in a more cheap way, I use RGB10_A2 as my render target format instead of RGBA16F. But I found it can’t store pixel value > 1 (use renderdoc to see the pixel value in Windows platform).

Is RGB10_A2 can’t support floating number value > 1?

I check the opengl spec. which says internal format RGB10_A2 combines with format UNSIGNED_INT_2_10_10_10_REV.