I'm trying to create and use an indirect command buffer as illustrated in the WWDC session "Metal for Game Developers" this week.
https://developer.apple.com/videos/play/wwdc2018/607/
// Create an Indirect Command Buffer
let desc = MTLIndirectCommandBufferDescriptor()
desc.commandTypes = .draw
desc.inheritBuffers = false
desc.inheritPipelineState = false
desc.maxFragmentBufferBindCount = 1
desc.maxVertexBufferBindCount = 1
// This is not working!
indirectCommandBuffer = device.newIndirectCommandBuffer(with: desc, maxCommandCount: 10, options: MTLResourceOptions.storageModePrivate )
I'm getting the following error:
2018-06-09 13:11:59.852012-0400 Metal DEM[1289:30399] -[NVMTLDevice newIndirectCommandBufferWithDescriptor:maxCount:options:]: unrecognized selector sent to instance 0x101848400
2018-06-09 13:11:59.852718-0400 Metal DEM[1289:30399] [General] -[NVMTLDevice newIndirectCommandBufferWithDescriptor:maxCount:options:]: unrecognized selector sent to instance 0x101848400
2018-06-09 13:11:59.854489-0400 Metal DEM[1289:30399] [General] (
0 CoreFoundation 0x00007fff311ea16a __exceptionPreprocess + 197
1 libobjc.A.dylib 0x00007fff5d113b10 objc_exception_throw + 48
2 CoreFoundation 0x00007fff31272793 -[NSObject(NSObject) __retain_OA] + 0
3 CoreFoundation 0x00007fff31177c43 ___forwarding___ + 789
4 CoreFoundation 0x00007fff31177898 _CF_forwarding_prep_0 + 120
5 Metal 0x00007fff363a9c06 -[MTLIOAccelDevice newIndirectCommandBufferWithDescriptor:maxCommandCount:options:] + 34
6 MetalTools 0x00007fff5093645a -[MTLDebugDevice newIndirectCommandBufferWithDescriptor:maxCommandCount:options:] + 101
7 Metal DEM 0x0000000100019e61 $S9Metal_DEM14ViewControllerC21IndirectCommandBufferyyypF + 9361
8 Metal DEM 0x000000010001ae5a $S9Metal_DEM14ViewControllerC8OpenFileyyypF + 58
9 Metal DEM 0x000000010001aeac $S9Metal_DEM14ViewControllerC8OpenFileyyypFTo + 76
10 AppKit 0x00007fff2ee6d7b4 -[NSApplication(NSResponder) sendAction:to:from:] + 312
...
)
I'm getting a similar error when trying to run the example code on 10.14 Beta (18A293u)
https://developer.apple.com/documentation/metal/fundamental_lessons/basic_indirect_command_buffers
2018-06-09 13:30:12.410842-0400 BasicIndirectCommandBufferCPUEncoding-MacOS[1727:51776] -[NVMTLDevice newIndirectCommandBufferWithDescriptor:maxCount:options:]: unrecognized selector sent to instance 0x103029a00
2018-06-09 13:30:12.410952-0400 BasicIndirectCommandBufferCPUEncoding-MacOS[1727:51776] Failed to set (contentViewController) user defined inspected property on (NSWindow): -[NVMTLDevice newIndirectCommandBufferWithDescriptor:maxCount:options:]: unrecognized selector sent to instance 0x103029a00
Any idea what I'm doing wrong?
