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baldurk
0dda96a045
* This is a legacy holdover from the C# interop not being able to preserve pointers easily.
106 lines
4.3 KiB
ReStructuredText
106 lines
4.3 KiB
ReStructuredText
Iterate drawcall tree
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=====================
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In this example we will show how to iterate over drawcalls.
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The drawcalls returned from :py:meth:`~renderdoc.ReplayController.GetDrawcalls` are draws or marker regions at the root level - with no parent marker region. There are multiple ways to iterate through the list of draws.
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The first way illustrated in this sample is to walk the tree using :py:attr:`~renderdoc.DrawcallDescription.children`, which contains the list of child draws at any point in the tree. There is also :py:attr:`~renderdoc.DrawcallDescription.parent` which points to the parent drawcall.
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The second is to use :py:attr:`~renderdoc.DrawcallDescription.previous` and :py:attr:`~renderdoc.DrawcallDescription.next`, which point to the previous and next draw respectively in a linear fashion, regardless of nesting depth.
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In the example we use this iteration to determine the number of passes, using the drawcall flags to denote the start of each pass by a starting clear call.
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Example Source
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--------------
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.. only:: html and not htmlhelp
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:download:`Download the example script <iter_draws.py>`.
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.. literalinclude:: iter_draws.py
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Sample output:
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.. sourcecode:: text
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1: Scene
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2: ClearRenderTargetView(0.000000, 0.000000, 0.000000, 1.000000)
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3: ClearDepthStencilView(D=1.000000, S=00)
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9: ClearRenderTargetView(0.000000, 0.000000, 0.000000, 0.000000)
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10: ClearRenderTargetView(0.000000, 0.000000, 0.000000, 0.000000)
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11: ClearDepthStencilView(D=1.000000, S=00)
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13: GBuffer
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28: DrawIndexed(4800)
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43: DrawIndexed(36)
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56: DrawIndexed(5220)
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69: DrawIndexed(5580)
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82: DrawIndexed(5580)
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95: DrawIndexed(5580)
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108: DrawIndexed(5580)
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121: DrawIndexed(5580)
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134: DrawIndexed(5580)
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147: DrawIndexed(5580)
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160: DrawIndexed(5580)
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173: DrawIndexed(5580)
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186: DrawIndexed(5580)
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199: DrawIndexed(5220)
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212: DrawIndexed(5220)
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225: DrawIndexed(5220)
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238: DrawIndexed(5220)
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251: DrawIndexed(5220)
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264: DrawIndexed(5220)
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277: DrawIndexed(5220)
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290: DrawIndexed(5220)
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303: DrawIndexed(5220)
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316: DrawIndexed(5220)
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319: ClearDepthStencilView(D=1.000000, S=00)
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321: Shadowmap
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333: DrawIndexed(4800)
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345: DrawIndexed(36)
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355: DrawIndexed(5220)
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365: DrawIndexed(5580)
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375: DrawIndexed(5580)
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385: DrawIndexed(5580)
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395: DrawIndexed(5580)
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405: DrawIndexed(5580)
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415: DrawIndexed(5580)
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425: DrawIndexed(5580)
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435: DrawIndexed(5580)
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445: DrawIndexed(5580)
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455: DrawIndexed(5580)
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465: DrawIndexed(5220)
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475: DrawIndexed(5220)
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485: DrawIndexed(5220)
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495: DrawIndexed(5220)
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505: DrawIndexed(5220)
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515: DrawIndexed(5220)
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525: DrawIndexed(5220)
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535: DrawIndexed(5220)
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545: DrawIndexed(5220)
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555: DrawIndexed(5220)
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558: ClearRenderTargetView(0.000000, 0.000000, 0.000000, 1.000000)
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559: ClearDepthStencilView(D=1.000000, S=00)
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561: Lighting
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563: ClearRenderTargetView(0.000000, 0.000000, 0.000000, 0.000000)
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564: ClearRenderTargetView(0.000000, 0.000000, 0.000000, 0.000000)
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580: DrawIndexed(36)
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597: DrawIndexed(36)
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614: DrawIndexed(36)
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617: ClearRenderTargetView(0.000000, 0.000000, 0.000000, 1.000000)
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618: ClearDepthStencilView(D=1.000000, S=00)
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620: Shading
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630: Draw(6)
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645: DrawIndexed(960)
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652: API Calls
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655: End of Frame
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Pass #0 starts with 2: ClearRenderTargetView(0.000000, 0.000000, 0.000000, 1.000000)
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Pass #0 contained 24 draws
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Pass #1 starts with 319: ClearDepthStencilView(D=1.000000, S=00)
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Pass #1 contained 24 draws
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Pass #2 starts with 558: ClearRenderTargetView(0.000000, 0.000000, 0.000000, 1.000000)
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Pass #2 contained 3 draws
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Pass #3 starts with 617: ClearRenderTargetView(0.000000, 0.000000, 0.000000, 1.000000)
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Pass #3 contained 4 draws
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