From: Gert Wollny Date: Tue, 14 Jul 2020 13:28:00 +0000 (+0200) Subject: gallium/aux: reorder vertex attributes in triangle fans according to PV X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=fcc7a1e7b6d6bc149938c1203a55e1ede3517af5;p=mesa.git gallium/aux: reorder vertex attributes in triangle fans according to PV With triangle fans when "first vertex convention" is active the provoking vertex is actually the second vertex so that the different triangle can have different colors with flat shading. Take this into account when re-ordering the vertex indices (as proposed by Erik) Signed-off-by: Gert Wollny Reviewed-by: Erik Faye-Lund Part-of: --- diff --git a/src/gallium/auxiliary/indices/u_indices_gen.py b/src/gallium/auxiliary/indices/u_indices_gen.py index 2d08072c41a..3c64bb213e4 100644 --- a/src/gallium/auxiliary/indices/u_indices_gen.py +++ b/src/gallium/auxiliary/indices/u_indices_gen.py @@ -294,7 +294,11 @@ def trifan(intype, outtype, inpv, outpv, pr): print(' start = i;') prim_restart(3, 3, 1, close_func) - do_tri( intype, outtype, 'out+j', 'start', 'i+1', 'i+2', inpv, outpv ); + if inpv == FIRST: + do_tri( intype, outtype, 'out+j', 'i+1', 'i+2', 'start', inpv, outpv ); + else: + do_tri( intype, outtype, 'out+j', 'start', 'i+1', 'i+2', inpv, outpv ); + print(' }') postamble()