- the height along the new track is a smooth curve through points on the ground under the foot of the ballast, added where the track would hang or sink more than 0.1 m, at least 10 m apart; the paths are cut there, each joint keeps one grade on both sides
- the clicked ends and the free ends joined keep their height and grade as before; no grade limits
- self-test layclicks: how far the foot of the ballast goes over and under the ground along the paths laid
- each click of the lay tool and the end of a drag out of a free end take the height of the ground under the lower foot of the ballast plus its depth, the rails never under the ground at the axis
- heights between the clicks follow a curve which keeps the grade of the track laid from at the joint and leaves with the grade of the chord, onto a free end with the grade of that track; no grade limits
- the cursor follows the ground along its ray instead of the level of the last point
- self-test layclicks: heights of the ground and the track, grades and grade breaks at the joints
- the second click of the lay tool lays a straight from the first point and goes on from its end, each next click lays the shape chosen (arc then straight, straight then arc, arc through the cursor, straight) with the radius on Ctrl+wheel, as from a free end; no polyline of vertices cut into pieces of the longest path any more
- a track started on the ground and ended at a free end is the shape pulled out of that end towards the start point, one path per up to 90 degrees of arc
- hints and readout the same for both; self-test command layclicks
- the join of two free ends (a drag from one onto the other, or a click of the lay tool on it) tries in turn: a straight when the joints check can't see the kinks (half its angle), one circular arc through both ends (a piece cut out of a curve comes back as it was, its cant kept), a curve with straights where the tangents meet, a reverse curve, and only then a free Bezier curve; a curve turning more than it needs to, sharper than 10 m or longer than three chords is never taken
- the transition curves eased out of a curved neighbour only when there's room for them between the ends, never crossing each other into a loop
- cant and transition curves recommended for the radius the curve really gets, at the speed of the joined track or of the tool and never above what the radius allows; the circular arc keeps at least max(20 m, 0.4 V) between the transitions, the cant lowered to what the shortened transitions can ramp, transitions under 1 m left out
- shapes from a free end: arc then straight, straight then arc, arc through the cursor, straight; Ctrl+wheel steps the radius, Shift+wheel the shape (at a free end: the other joins), the plain wheel still zooms; a click of the lay tool from a free end lays the shape and goes on from its end
- self-test commands join, layto and joints; Polish translation
- Terrain work mode shows a browser of the textures folder in place of the
node bank; textures/materials can be dragged onto the palette entries
(replacing the material), the material field and the water material field
- Ctrl+Z/Ctrl+Y for heightmap terrain changes: a brush stroke or an
operation is one step of the editor history
- Ground conversion reads only the files of the terrain directives
(.txtf with origin/rotate, or .btf without text), paints the chunks with
the materials of the triangles, drops only the shapes of those files
- Fix: ground grids converted out-of-range floats to int, so whole-scene
queries returned the triangles of a single cell (shifted chunks)
- Fix: terrain layers copied from textures already uploaded without their
data stayed grey
- Fix: ImGui ID conflict between terrain tool radios and section headers
- Fix: layers of terrain .txtf files named with the scenery/ prefix and
could not be saved
- Editor selftest commands for the terrain
