Version 6.08: exporter fixes and texture export selection

[Eric Haines]

A new version's ready for download.

For power users, especially if you use large texture tiles: added "Texture output" checkboxes to dialog that suppresses the output textures being generated.

Fixed the long-standing bug that OBJ exports for older versions of Cinema 4D would import with the textures applied radially. The problem was that Sketchfab set the OBJ export for rendering to be relative, not absolute, coordinates. For some reason, older versions of Cinema 4D would fail to read these; version R18.057 does not. Fixed by separating Sketchfab export values from the normal rendering export values.

Improved user experience by having autocorrection of the bottom height be off by default for schematics or whenever the user has set the lower depth to 0. Updated LodePNG and modified it to use wide character strings, to fix a crash when terrainExt.png files with extremely large block textures, e.g., 512x512, were read in. Change default for exporting models for Sculpteo to be millimeters, as their default has changed to this from centimeters. Make TileMaker a bit more robust, giving an error if a non-power-of-two or other erroneous tile is found, but skipping the tile instead of aborting.

(Thanks to Kevin Niestrat for showing how TileMaker mysteriously failed, to SolarPH for helping solve the Cinema 4D problem and for pointing out the flaw with autocorrection and schematics, and another user for reporting the large-tile problem.)

And, because pictures are fun, here's one: it uses the rarely-chosen "rich textures" export option in Mineways, and displayed with Microsoft's free 3D Builder viewer, which has gotten better over the years: