message: Fix, regression with Metal buffers
diff: @@ -320,7 +320,7 @@ void MetalRenderPrimitive::setBuffers(MetalVertexBuffer* vertexBuffer, MetalInde
  uint32_t bufferIndex = 0;
  for (uint32_t attributeIndex = 0; attributeIndex < attributeCount; attributeIndex++) {
  const auto& attribute = vertexBuffer->attributes[attributeIndex];
  - if (attribute.buffer != Attribute::BUFFER_UNUSED) {
  + if (attribute.buffer == Attribute::BUFFER_UNUSED) {
  const uint8_t flags = attribute.flags;
  const MTLVertexFormat format = (flags & Attribute::FLAG_INTEGER_TARGET) ?
  MTLVertexFormatUInt4 : MTLVertexFormatFloat4;
  