Disallow renderable 3D textures (#2603)

kvark · web-flow · commit e44c5fa8ff91 · 2022-02-15T15:24:55.000-08:00
diff --git a/spec/index.bs b/spec/index.bs
@@ -2679,11 +2679,12 @@ namespace GPUTextureUsage {
                                 [$maximum mipLevel count$](|descriptor|.{{GPUTextureDescriptor/dimension}}, |descriptor|.{{GPUTextureDescriptor/size}}).
 
                             - |descriptor|.{{GPUTextureDescriptor/usage}} must be a combination of {{GPUTextureUsage}} values.
-                            - If |descriptor|.{{GPUTextureDescriptor/usage}} includes the {{GPUTextureUsage/RENDER_ATTACHMENT}} bit,
-                                |descriptor|.{{GPUTextureDescriptor/format}} must be a [=renderable format=].
-                            - If |descriptor|.{{GPUTextureDescriptor/usage}} includes the {{GPUTextureUsage/STORAGE_BINDING}} bit,
-                                |descriptor|.{{GPUTextureDescriptor/format}} must be listed in [[#plain-color-formats]] table
-                                with {{GPUTextureUsage/STORAGE_BINDING}} capability.
+                            - If |descriptor|.{{GPUTextureDescriptor/usage}} includes the {{GPUTextureUsage/RENDER_ATTACHMENT}} bit:
+                                - |descriptor|.{{GPUTextureDescriptor/format}} must be a [=renderable format=].
+                                - |descriptor|.{{GPUTextureDescriptor/dimension}} must be {{GPUTextureDimension/"2d"}}.
+                            - If |descriptor|.{{GPUTextureDescriptor/usage}} includes the {{GPUTextureUsage/STORAGE_BINDING}} bit:
+                                - |descriptor|.{{GPUTextureDescriptor/format}} must be listed in [[#plain-color-formats]] table
+                                    with {{GPUTextureUsage/STORAGE_BINDING}} capability.
                             - For each |viewFormat| in |descriptor|.{{GPUTextureDescriptor/viewFormats}},
                                 |descriptor|.{{GPUTextureDescriptor/format}} and |viewFormat| must be
                                 [=texture view format compatible=].
