Unstable branch updated (v13 preview 2)

Hi!

Current list of changes:

// Hit distance for bugs is now same building distance.
// Improved sky lighting.
// Corrected snow covered grass color
// Better texture and normal maps for snow and sand
// New poly tool. Select 3 or 4 points and hit [Enter] to fill.
// Crafting time is now shorter.	
// Fixed scaling of plant tool icon in inventory.
// Cliffs. New world feature. Can be disabled in "New game" options.
// LOTS of rendering optimizations. 
// LOTS of Worker logic optimizations. 
// Added stone tool.
// Scalar field voxels super smoothing. 
// Some floating blocks will now sunk into soft materials.
// Removed automated door (should be able to automate normal door)
// Most blocky tools should be placed on solid scalar field voxels
// Fixed "state models removes scalars field voxels when placed/removed".
// Terrain sphere materials shows smooth sphere now.	
// Terrain cube materials shows smooth cube now.	
// Added recipe output text for materials in crafting ui.
// New Branch without leaves plant type.
// New Palm leaf branch plant type.
// New Fern plant type. 
// New Wheat plant type.
// Improved lighting for foliage.
// Added big rocks cube type and tool.
// Voxel paint/fill ([SHIFT]) uses correct cursor size now. 
// You can now place blocks "inside" scalar field voxels.
// Hide normal cursor when mouse over floating block. 

best regards Jens