grid setup example

glow-extras @ cde6404d

-Subproject commit 0572710a52847290ab7737b7aa15e574d8c11d9c
+Subproject commit cde6404dda41c07e0e5b91d56a98d5367811198d

polymesh @ b1127d01

-Subproject commit 3f347c61cb46210fc4a983434a7d26382eb697ef
+Subproject commit b1127d018c403e96f693765b98124e585a705f15

typed-geometry @ ea2785c9

-Subproject commit c9fd6f7cd6df3a07eec76d67364c75f91acbec49
+Subproject commit ea2785c9dbb3ef87fa16d83ced70e8ee7d0b29b3

samples/basic/viewer/main.cc

@@ -364,6 +364,7 @@ void advanced_configs(pm::vertex_attribute<tg::pos3> const& pos)
     gv::view(pos, gv::ssao_radius(0.2f), "smaller SSAO");
     gv::view(pos, gv::tonemap_exposure(1.5f), "tonemapping");
     gv::view(pos, tg::aabb3(-2, 2), "custom scene AABB");
+    gv::view(pos, gv::grid_size(0.3f), gv::grid_center({1, 2, 3}), "custom grid configuration");
 
     gv::view(pos, gv::print_mode, "print-friendly mode");
     gv::view(pos, gv::background_color(tg::color3::blue), "custom BG color");