On Friday, September 12, 2014 08:37:11 AM Ian Romanick wrote: > On 09/10/2014 03:41 PM, Kenneth Graunke wrote: > > We always uploaded them together, mostly out of laziness - both required > > an additional vertex element. However, gl_VertexID now also requires an > > additional vertex buffer for storing gl_BaseVertex; for non-indirect > > draws this also means uploading (a small amount of) data. This is extra > > overhead we don't need if the shader only uses gl_InstanceID. > > > > In particular, our clear shaders currently use gl_InstanceID for doing > > layered clears, but don't need gl_VertexID. > > > > XXX: Needs testing on Broadwell before pushing. > > Has this happened yet?
Yes, it seems fine. "arb_transform_feedback2-draw-auto -auto instanced" appeared to fail originally, which was creepy, but subsequent runs show it passing, so I guess it must have been a fluke. --Ken
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