From 95f066fc54ed351a93350b99b584987b88524e71 Mon Sep 17 00:00:00 2001 From: Brian Date: Fri, 16 Nov 2007 10:39:08 -0700 Subject: [PATCH] note problem with fragment coord Y orientation --- src/mesa/pipe/softpipe/sp_quad_fs.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/mesa/pipe/softpipe/sp_quad_fs.c b/src/mesa/pipe/softpipe/sp_quad_fs.c index 17fb10ea72b..ed14dac18e4 100644 --- a/src/mesa/pipe/softpipe/sp_quad_fs.c +++ b/src/mesa/pipe/softpipe/sp_quad_fs.c @@ -104,6 +104,10 @@ shade_quad( machine->Inputs[0].xyzw[0].f[2] = fx; machine->Inputs[0].xyzw[0].f[3] = fx + 1.0f; + /* XXX for OpenGL we need to invert the Y pos here (y=0=top). + * but that'll mess up linear/perspective interpolation of other + * attributes... + */ machine->Inputs[0].xyzw[1].f[0] = fy; machine->Inputs[0].xyzw[1].f[1] = fy; machine->Inputs[0].xyzw[1].f[2] = fy + 1.0f; -- 2.30.2