update sample count so we don't invalidate every frame

crates/renderling/src/cull/cpu.rs

@@ -679,15 +679,16 @@ impl ComputeDepthPyramid {
         &mut self,
         device: &wgpu::Device,
         queue: &wgpu::Queue,
-        // slab_buffer: &wgpu::Buffer,
-        // indirect_draw_buffer: &wgpu::Buffer,
-        // indirect_draw_count: u32,
         depth_texture: &Texture,
     ) -> Result<(), CullingError> {
         let sample_count = depth_texture.texture.sample_count();
         if sample_count != self.sample_count {
-            log::warn!("sample_count changed, invalidating");
+            log::warn!(
+                "sample_count changed from {} to {sample_count}, invalidating",
+                self.sample_count
+            );
             self.compute_copy_depth.invalidate();
+            self.sample_count = sample_count;
         }
 
         let extent = depth_texture.texture.size();
@@ -729,8 +730,7 @@ mod test {
         math::hex_to_vec4, prelude::*,
     };
     use crabslab::GrowableSlab;
-    use glam::{Mat4, Quat, UVec2, UVec3, UVec4, Vec2, Vec3, Vec4};
-    use image::GenericImageView;
+    use glam::{Mat4, Quat, UVec2, UVec3, Vec2, Vec3, Vec4};
 
     #[test]
     fn occlusion_culling_sanity() {