renderdoc_create_render_graph

# RenderDoc Python scripts, powered by IronPython 2.7.4.1000
# The 'pyrenderdoc' object is the Core class instance.
# The 'renderdoc' module is available, as the matching namespace in C#
from collections import defaultdict

lastDraw = pyrenderdoc.CurDrawcalls[len(pyrenderdoc.CurDrawcalls) - 1]
draws = []
for eventID in range(0, lastDraw.eventID):  # lastDraw.eventID
	curdraw = pyrenderdoc.GetDrawcall(eventID)
	if curdraw == None:
			continue
	draws.append(curdraw)

_width = 1536
_height = 864

last_frame_sources = set()
last_frame_targets = set()
unique_nodes = set()
ordered_nodes = []
main_draw_path = []
textures = {}
depths = []
numdraws = defaultdict(int)

dot_file = open("C:/Users/rpottorff/game.dot", 'w')
dot_file.write("digraph G { 	graph[splines=ortho];\n")
prev_node = "start"
last_node_name = prev_node
for i, curdraw in enumerate(draws):
	pyrenderdoc.SetEventID(None, curdraw.eventID)
	this_frame_sources = set()
	this_frame_targets = set()

	node_name = curdraw.eventID
	pyrenderdoc.CurPipelineState.GetOutputTargets()

	out_edges = []
	out_edges = [o.Id for o in pyrenderdoc.CurPipelineState.GetOutputTargets() if str(o.Id) != "0"]
	#out_edges += [pyrenderdoc.CurPipelineState.GetDepthTarget().Id] if str(pyrenderdoc.CurPipelineState.GetDepthTarget().Id) != "0" else []
	if str(pyrenderdoc.CurPipelineState.GetDepthTarget().Id) != "0":
		depths.append(str(pyrenderdoc.GetTexture(pyrenderdoc.CurPipelineState.GetDepthTarget().Id).name))
	
	in_edges =[]
	for x in [x for x in pyrenderdoc.CurPipelineState.GetReadOnlyResources(renderdoc.ShaderStageType.Pixel) if str(x.Value[0].Id) != "0"]:
		if str(x.Value[0].Id) != "0" and pyrenderdoc.GetTexture(x.Value[0].Id) is not None:
			if str(pyrenderdoc.GetTexture(x.Value[0].Id).name) not in depths:
				in_edges += [x.Value[0].Id]
	
	has_targets = False
	for n in out_edges:
		tex = pyrenderdoc.GetTexture(n)
		if tex and tex.width == _width and tex.height == _height:
			textures[str(tex.name)] = tex
			this_frame_targets.add(str(tex.name))

	for n in in_edges:
		tex = pyrenderdoc.GetTexture(n)
		if tex and tex.width == _width and tex.height == _height:
			textures[str(tex.name)] = tex
			this_frame_sources.add(str(tex.name))

	if this_frame_targets == last_frame_targets and this_frame_sources == last_frame_sources:
		numdraws[str(last_node_name)] += 1
		continue;

	last_node_name = str(node_name)

	for n in this_frame_targets:
		unique_nodes.add(n)
		dot_file.write("\"%s\" -> \"%s\" [color=blue]; \n" % (node_name, n))

	last_frame_sources = this_frame_sources
	last_frame_targets = this_frame_targets

	for n in this_frame_sources:
		unique_nodes.add(n)
		dot_file.write("\"%s\" -> \"%s\" [color=green]; \n" % (n, node_name))

	unique_nodes.add(str(node_name))
	ordered_nodes.append(str(node_name))
	unique_nodes.add(str(node_name))
	main_draw_path.append((prev_node, node_name))
	prev_node = node_name


for i, n in enumerate(unique_nodes):
	style = "" if n != "Serialised Swap Chain Buffer" else "[color=lightgreen,style=filled]"
	style = "[color=lightblue,style=filled]" if n == ordered_nodes[0] else style
	if n in textures.keys():
		texsave = renderdoc.TextureSave()
		texsave.destType = renderdoc.FileType.PNG
		texsave.id = textures[n].ID
	
		texsave.sample.mapToArray = False
		texsave.sample.sampleIndex = 0

		texsave.slice.sliceIndex = 0
		texsave.slice.slicesAsGrid = False
		texsave.slice.sliceGridWidth = 1
		texsave.slice.cubeCruciform = False

		texsave.mip = 0
		texsave.comp.blackPoint = 0.0
		texsave.comp.whitePoint = 1.0
		texsave.alpha = renderdoc.AlphaMapping.Discard

		if n in depths:
			texsave.comp.whitePoint = 0.15
			texsave.channelExtract = 0

		pyrenderdoc.Renderer.Invoke(lambda x: x.SaveTexture(texsave, "C:\\Users\\rpottorff\\" + n + ".png"))
		style = '[width=2,height=2,fixedsize=true,image="C:\\\\Users\\\\rpottorff\\\\' + n + '.png",labelloc=b]'
	if n in numdraws.keys():
		style = '[label="' + n + '(' + str(numdraws[n]) + ')"]'
	dot_file.write("\"%s\" %s;\n" % (n, style))

dot_file.write("subgraph cluster_0 { graph[style=invis];\n");
for node_name, next_node_name in main_draw_path:
	dot_file.write("\"%s\" -> \"%s\" [style=invis]; \n" % (node_name, next_node_name))
dot_file.write("}\n")

dot_file.write("}")
dot_file.close()

print("done")

this was quick-and-dirty research code, so it is far from even remotely reasonable