Cleanup: Use new CollectionRef::empty() method

Use the new CollectionRef::empty() method in all locations where
appropriate.

Differential Revision: https://developer.blender.org/D13276

1 files changed, 2 insertions, 2 deletions

diff --git a/intern/cycles/blender/curves.cpp b/intern/cycles/blender/curves.cpp
index ffe0c553738..c96d01a8ffb 100644
--- a/intern/cycles/blender/curves.cpp
+++ b/intern/cycles/blender/curves.cpp
@@ -199,7 +199,7 @@ static bool ObtainCacheParticleUV(Hair *hair,
           b_mesh->uv_layers.begin(l);
 
           float2 uv = zero_float2();
-          if (b_mesh->uv_layers.length())
+          if (!b_mesh->uv_layers.empty())
             b_psys.uv_on_emitter(psmd, *b_pa, pa_no, uv_num, &uv.x);
           CData->curve_uv.push_back_slow(uv);
 
@@ -261,7 +261,7 @@ static bool ObtainCacheParticleVcol(Hair *hair,
           b_mesh->vertex_colors.begin(l);
 
           float4 vcol = make_float4(0.0f, 0.0f, 0.0f, 1.0f);
-          if (b_mesh->vertex_colors.length())
+          if (!b_mesh->vertex_colors.empty())
             b_psys.mcol_on_emitter(psmd, *b_pa, pa_no, vcol_num, &vcol.x);
           CData->curve_vcol.push_back_slow(vcol);