Created
November 29, 2016 08:51
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A renderdoc python script to visit every event and do some work
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# Jumps to every event in turn, optionally doing work at each point | |
import time | |
import random | |
do_vert_debug = 1 | |
do_pixel_debug = 1 | |
action_chance = 0.333 | |
x = 0 | |
y = 0 | |
lastmod = None | |
def vert_debug(r): | |
# todo, pick a random but valid vertex. Need to fetch index buffer data | |
trace = r.DebugVertex(0, 0, 0, pyrenderdoc.CurDrawcall.instanceOffset, pyrenderdoc.CurDrawcall.vertexOffset) | |
print "Vertex debugged in %d cycles" % len(trace.states) | |
def pixel_history(r): | |
global lastmod, x, y | |
viewport = pyrenderdoc.CurPipelineState.GetViewport(0) | |
# todo, query for some pixel this drawcall actually touched. | |
x = int(random.random()*viewport.width + viewport.x) | |
y = int(random.random()*viewport.height + viewport.y) | |
target = renderdoc.ResourceId.Null | |
outputs = pyrenderdoc.CurPipelineState.GetOutputTargets() | |
if len(outputs) > 0: | |
target = outputs[0].Id | |
if target == renderdoc.ResourceId.Null: | |
target = pyrenderdoc.CurPipelineState.GetDepthTarget().Id | |
if target == renderdoc.ResourceId.Null: | |
print "No targets bound! Can't history" | |
return | |
print "Fetching history for %d,%d on target %s" % (x, y, str(target)) | |
history = r.PixelHistory(target, x, y, 0, 0, 0xffffffff, renderdoc.FormatComponentType.None) | |
print "Pixel %d,%d has %d history events" % (x, y, len(history)) | |
for i in range(len(history)-1, 0, -1): | |
mod = history[i] | |
draw = pyrenderdoc.GetDrawcall(mod.eventID) | |
print " hit %d at %d is %s (%s)" % (i, mod.eventID, draw.name, str(draw.flags)) | |
if draw == None or not draw.flags.HasFlag(renderdoc.DrawcallFlags.Drawcall): | |
continue | |
lastmod = history[i] | |
print "Got a hit on a drawcall at event %d" % lastmod.eventID | |
break | |
def pixel_debug(r): | |
trace = r.DebugPixel(x, y, 0xffffffff, 0xffffffff) | |
print "Pixel %d,%d debugged in %d cycles" % (x, y, len(trace.states)) | |
lastDraw = pyrenderdoc.CurDrawcalls[len(pyrenderdoc.CurDrawcalls) - 1] | |
while len(lastDraw.children) > 0: | |
lastDraw = lastDraw.children[len(lastDraw.children) - 1] | |
for eventID in range(0, lastDraw.eventID): | |
curdraw = pyrenderdoc.GetDrawcall(eventID) | |
if curdraw == None: | |
continue | |
pyrenderdoc.SetEventID(None, curdraw.eventID) | |
print "" | |
print "%d - %s" % (curdraw.eventID, curdraw.name) | |
if do_vert_debug and curdraw.flags.HasFlag(renderdoc.DrawcallFlags.Drawcall) and random.random() < action_chance: | |
pyrenderdoc.Renderer.Invoke(vert_debug) | |
if do_pixel_debug and curdraw.flags.HasFlag(renderdoc.DrawcallFlags.Drawcall) and random.random() < action_chance: | |
lastmod = None | |
pyrenderdoc.Renderer.Invoke(pixel_history) | |
if lastmod != None: | |
pyrenderdoc.SetEventID(None, lastmod.eventID) | |
pyrenderdoc.Renderer.Invoke(pixel_debug) | |
pyrenderdoc.SetEventID(None, curdraw.eventID) |
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