Every 7th cube falls

stevenhuyn · Apr 30, 2023 · 3f3e2f4 · 3f3e2f4
1 parent 251cba6
commit 3f3e2f4
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Showing 2 changed files with 7 additions and 14 deletions.
diff --git a/cubeway/src/compute.wgsl b/cubeway/src/compute.wgsl
@@ -12,20 +12,14 @@ struct Instances {
 }
 
 @binding(0) @group(0) var<uniform> params : SimParams;
-@binding(1) @group(0) var<storage, read_write> instanceBuffer : Instances;
+@binding(1) @group(0) var<storage, read_write> instanceBuffer : array<Instance>;
 @compute @workgroup_size(64)
-fn main(@builtin(global_invocation_id) GlobalInvocationID : vec3<u32>) {
-  var index = GlobalInvocationID.x;
+fn main(@builtin(global_invocation_id) GlobalInvocationID: vec3<u32>) {
+    var index = GlobalInvocationID.x;
 
-  instanceBuffer.instances[index + 0u].position.y -= 0.0001;
-//   instanceBuffer.instances[index + 0u].position.y -= 0.0001;
-//   instanceBuffer.instances[index + 0u].position.z -= 0.0001;
-//   instanceBuffer.instances[index + 0u].rotation.x -= 0.0001;
-//   instanceBuffer.instances[index + 0u].rotation.y -= 0.0001;
-//   instanceBuffer.instances[index + 0u].rotation.z -= 0.0001;
-//   instanceBuffer.instances[index + 0u].rotation.w -= 0.0001;
+    instanceBuffer[index * 7u].position.y -= 0.001;
 
-  if (index < 100u) {
-    let bufferIndex = u32(f32(index) * 7.0);
-  }
+    if index < 100u {
+        let bufferIndex = u32(f32(index) * 7.0);
+    }
 }
diff --git a/cubeway/src/lib.rs b/cubeway/src/lib.rs
@@ -392,7 +392,6 @@ impl State {
 
         particle_buffers.push(instance_buffer);
 
-        // Create 2 bind groups one for each buffer
         particle_bind_groups.push(device.create_bind_group(&wgpu::BindGroupDescriptor {
             layout: &particle_bind_group_layout,
             entries: &[