###############################################################################
# ERS default configuration file
# Jiri Bittner 2003
#############################################################################

Scene {

	filename ../data/vienna/vienna_cropped.obj
}


Preprocessor {
	samplesPerPass 500000
	type vss
	detectEmptyViewSpace true
	loadMeshes false
	
	# internal raycaster: 0, intel: 1
	rayCastMethod 0  
	
	exportVisibility false
	applyVisibilityFilter false
	applyVisibilitySpatialFilter false
}


VssTree {
	maxDepth 	2
	
	maxTotalMemory	50
	maxStaticMemory	20
	
	splitType regular
	splitUseOnlyDrivingAxis true
}


Limits {
       threshold	1e-6
       small		1e-6
       infinity		1e9
}


KdTree {
	sahUseFaces true

	Termination {
		minCost 0
		maxDepth 20
		
		maxCostRatio 1.5
		ct_div_ci 0.5
	}

	splitMethod SAH
	splitBorder 0.01
}

MeshKdTree {
	Termination {
		minCost 1
		maxDepth 18
		maxCostRatio 0.9
		ct_div_ci 0.5
	}

	splitMethod SAH
	splitBorder 0.01
}


ViewCells {
	
	# samples used for view cell construction in the merge step
	Construction {
		samples 0
		samplesPerPass 1000000
	}

	# number of active view cells
	active 25000
	maxStaticMemory	40

	exportToFile true
	loadFromFile false

	#exportPvs true

	# type of view cells
	type vspOspTree
	
	#this ratio of the biggest pvs gives the threshold when a pvs is considered invalid
	maxPvsRatio 1.0
		
	processOnlyValidViewCells false

	samplingType box

	PostProcess {
		# how much samples are used for post processing
		samples 0
		maxMergesPerPass 5000
		useRaysForMerge false
		refine false
		compress true
		merge false
	}

	Visualization {
		# how much samples we use for visualization
		samples 0
		exportRays true
		exportGeometry true
		exportMergedViewCells false
		useClipPlane true
		clipPlaneAxis 1
		clipPlanePos 0.3
		maxOutput 0
	}

	#showVisualization true
	showVisualization false
	evaluateViewCells false
	

	Evaluation {
		samples         80000000
		samplesForStats 40000000

		samplesPerPass  500000
		stepSize	200

		samplingType box

		histogram true
		histoStepSize 200
		histoMem 60

		statsPrefix ../scripts/viewCells
	}
}


################################
#
# View space partitioning kd tree
#

VspTree {
	Construction {
		renderCostDecreaseWeight 0.999
	}

	Termination {
		minPvs 0
		maxViewCells 4000
	}

	# heuristics for computing local split planes
	useCostHeuristics false

	# maximum number of tests per node
	maxTests 500000
}



#
# The bounding volume hierarchy
#

BvHierarchy {

	Construction {		
		renderCostDecreaseWeight 0.999
		#renderCostDecreaseWeight 1.0
	}

	Termination {
		maxLeaves 4000
	}

	minRaysForVisibility 3

	# heuristics for computing local split planes
	useCostHeuristics true
	# surface area or visibility based heuristics
	useSah false

	splitUseOnlyDrivingAxis false

	maxTests 500000
}


###############################################################
#
# Manages the construction of view space and object space partition
#

Hierarchy {
	# the type of object space partition: view space is always vsp (=kd) partition
	type bvh
	
	Construction {

		samples 1000000

		# type 0 = sequential computation, 1 = interleaved, 2 = gradient
		type 2

		###############################
		# only for interleaved method

		# if dirty split candidates are reevaluated 
		repairQueue true

		###################################################

		# minimal steps of same domain (view /object): for interleaved mode
		minStepsOfSameType 100
		maxStepsOfSameType 900

		maxRepairs 2000
	}

	Termination {
		# maximal number of leaves
		maxLeaves 300000
		# maximal memory in MB
                # maxMemory 4
		maxMemory 200
		# minimum ratio of global cost decrease
		minGlobalCostRatio -1
	}
}