From d5b1605449b3a29c02ee74e042a0a32720f3561a Mon Sep 17 00:00:00 2001 From: Keith Whitwell Date: Wed, 5 Jan 2005 11:10:05 +0000 Subject: [PATCH] If there is only one normal, don't transform it multiple times. --- src/mesa/tnl/t_vb_normals.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/src/mesa/tnl/t_vb_normals.c b/src/mesa/tnl/t_vb_normals.c index 732e7c6f4ec..d82008821f2 100644 --- a/src/mesa/tnl/t_vb_normals.c +++ b/src/mesa/tnl/t_vb_normals.c @@ -68,11 +68,23 @@ static GLboolean run_normal_stage( GLcontext *ctx, else lengths = VB->NormalLengthPtr; + /* If there is only one normal, don't transform it multiple times: + */ + if (VB->NormalPtr->stride == 0) + VB->NormalPtr->count = 1; + store->NormalTransform( ctx->ModelviewMatrixStack.Top, ctx->_ModelViewInvScale, VB->NormalPtr, /* input normals */ lengths, &store->normal ); /* resulting normals */ + + if (VB->NormalPtr->stride == 0) { + VB->NormalPtr->count = VB->Count; + store->normal.stride = 0; + } + else + store->normal.stride = 16; } VB->NormalPtr = &store->normal; -- 2.30.2