sizing actually working correctly now

src/render/primitive.rs

@@ -128,7 +128,7 @@ impl Primitives {
         self.run.len() != 0
     }
 
-    pub fn skip(&mut self, range: &Range<usize>) {
+    pub fn skip(&mut self, range: &mut Range<usize>) {
         if self.running() {
             self.run.data.extend(&self.instances.data[range.clone()]);
             self.run.assoc.extend(
@@ -137,7 +137,9 @@ impl Primitives {
                     .map(|i| i.duplicate()),
             );
         }
+        range.start = self.pos;
         self.pos += range.len();
+        range.end = self.pos;
     }
 
     pub(crate) fn clear(&mut self) {
@@ -184,6 +186,7 @@ impl Primitives {
     }
 }
 
+#[derive(Debug)]
 pub struct PrimitiveHandle {
     idx: usize,
     binding: u32,