added snapshot button (q) so you can actually see where you're moving

src/client/render/compute/layout.rs

@@ -37,7 +37,7 @@ impl Layout {
             sample_count: 1,
             dimension: wgpu::TextureDimension::D2,
             format: wgpu::TextureFormat::Rgba8Unorm,
-            usage: wgpu::TextureUsages::STORAGE_BINDING | wgpu::TextureUsages::TEXTURE_BINDING,
+            usage: wgpu::TextureUsages::STORAGE_BINDING | wgpu::TextureUsages::TEXTURE_BINDING | wgpu::TextureUsages::COPY_SRC,
             view_formats: &[],
         };
         let output = Texture::init(

src/client/render/compute/mod.rs

@@ -46,6 +46,7 @@ impl ComputePipeline {
             }
         }
         if len != self.old_len {
+            println!("len: {}", len);
             self.old_len = len;
             self.pipeline = self.pipeline(device, &Self::shader(device, len));
             self.work.set(work_vec(size.x, size.y, len));