no fence. the ground is a height field: rolling meadow, flat around the camp, rising toward the mountains, a stream winding across it. the meadow streams in 256-unit chunks around the pup; each chunk's ground, stream, flowers, grass, rocks and trees are stamped from the baked objects into one SHAPES record list, depending only on the chunk and the seed, and cost one SKETCH a tick (off-screen chunks send none). near chunks carry everything, far ones coarser ground and the trees. butterflies drift about the flower patches and sheep graze the high ground. four layered ridges stand on the horizon, lighter and bluer with distance, snow on the far two, sliding with parallax and wrapping so they never end; a far meadow and a haze of sky behind them. the camera looks lower (the horizon is on screen), follows the pup and leads toward where it's going, and pulls back a little on long runs. new taps: a flower (it sniffs and sneezes), a butterfly (it chases it till it flies off), the stream (it splashes, then shakes off), tall grass (it rolls on its back), a sheep (it barks; they scatter), the blanket (it comes home). far from camp, a shadowed word at the edge says which way home is. the bed and bowl are on the picnic blanket now.