is_solid() detects both solid rock and sprites (e.g. mineable ore). when in build mode, would like to be able to still mine if user cursor is over a mineable ore. so need to properly cast the build ray to use opaque (not fillable) blocks to get the proper position, vs the mineable block which may be nearer

common/src/terrain/block.rs

@@ -217,6 +217,7 @@ impl Block {
         }
     }
 
+    // Filled blocks or sprites
     #[inline]
     pub fn is_solid(&self) -> bool {
         self.get_sprite()

voxygen/src/session/target.rs

@@ -103,7 +103,7 @@ pub(super) fn targets_under_cursor(
     let (mine_pos, _, mine_cam_ray) = is_mining
         .then(|| find_pos(|b: Block| b.mine_tool().is_some()))
         .unwrap_or((None, None, None));
-    let (solid_pos, place_block_pos, solid_cam_ray) = find_pos(|b: Block| b.is_solid());
+    let (solid_pos, place_block_pos, solid_cam_ray) = find_pos(|b: Block| b.is_opaque());
 
     // See if ray hits entities
     // Don't cast through blocks, (hence why use shortest_cam_dist from non-entity