import renderdoc as rd

draws = {}

# Define a recursive function for iterating over draws

def iterDraw(d, indent = ''):

global draws

# save the drawcall by eventId

draws[d.eventId] = d

# Iterate over the draw's children

for d in d.children:

iterDraw(d, indent + ' ')

def sampleCode(controller):

# Iterate over all of the root drawcalls, so we have names for each

# eventId

for d in controller.GetDrawcalls():

iterDraw(d)

# Enumerate the available counters

counters = controller.EnumerateCounters()

if not (rd.GPUCounter.SamplesPassed in counters):

raise RuntimeError("Implementation doesn't support Samples Passed counter")

# Now we fetch the counter data, this is a good time to batch requests of as many

# counters as possible, the implementation handles any book keeping.

results = controller.FetchCounters([rd.GPUCounter.SamplesPassed])

# Get the description for the counter we want

samplesPassedDesc = controller.DescribeCounter(rd.GPUCounter.SamplesPassed)

# Describe each counter

for c in counters:

desc = controller.DescribeCounter(c)

print("Counter %d (%s):" % (c, desc.name))

print(" %s" % desc.description)

print(" Returns %d byte %s, representing %s" % (desc.resultByteWidth, desc.resultType, desc.unit))

# Look in the results for any draws with 0 samples written - this is an indication

# that if a lot of draws appear then culling could be better.

for r in results:

draw = draws[r.eventId]

# Only care about draws, not about clears and other misc events

if not (draw.flags & rd.DrawFlags.Drawcall):

continue

if samplesPassedDesc.resultByteWidth == 4:

val = r.value.u32

else:

val = r.value.u64

if val == 0:

print("EID %d '%s' had no samples pass depth/stencil test!" % (r.eventId, draw.name))

def loadCapture(filename):

# Open a capture file handle

cap = rd.OpenCaptureFile()

# Open a particular file - see also OpenBuffer to load from memory

status = cap.OpenFile(filename, '', None)

# Make sure the file opened successfully

if status != rd.ReplayStatus.Succeeded:

raise RuntimeError("Couldn't open file: " + str(status))

# Make sure we can replay

if not cap.LocalReplaySupport():

raise RuntimeError("Capture cannot be replayed")

# Initialise the replay

status,controller = cap.OpenCapture(None)

if status != rd.ReplayStatus.Succeeded:

raise RuntimeError("Couldn't initialise replay: " + str(status))

return cap,controller

if 'pyrenderdoc' in globals():

pyrenderdoc.Replay().BlockInvoke(sampleCode)

else:

cap,controller = loadCapture('test.rdc')

sampleCode(controller)

controller.Shutdown()

cap.Shutdown()