MPCInitAdvancedRaytrace

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Description

This subroutine initializes a T_MPCADVANCEDRAYTRACE data structure with default values.

Syntax

MPCInitAdvancedRaytrace( tMPC )

Parameters

tMPC As T_MPCADVANCEDRAYTRACE

Input data structure being initialized with default values. Structure members are initialized to the following values.

Structure Member	Initialized Value
action	"GPU"
doublePrecision	False
rayBufSize	1048576
maxSplitDepth	Maximum (specular ancestry) + (scatter ancestry) supported by the raytrace properties assigned to the model's traceable surfaces
log	False
logFile	Location of the associated FRED document
rayPaths	False
maxEventsPerPath	10
randomNumberSeedGeneration	"preference"
randomNumberSeed	(will be random)
forceMonteCarlo	False
reinitialize	False
reloadDoc	False
renderFile	Same location as associated FRED document, with the filename "mpc_render.bmp"
supressFacetData	False
suppressSurfPowers	False

Example

The example below demonstrates how to initialize a T_MPCADVANCEDRAYTRACE data structure to default values, modify specific parameter values of interest, and then use the structure to perform an MPC Trace Advanced call.

Sub Main

Dim mpcErr As Huge_

Dim tMPC As T_MPCADVANCEDRAYTRACE

MPCInitAdvancedRaytrace( tMPC )

tMPC.action = "GPU" 'Use GPUs to generate starting rays

tMPC.forceMonteCarlo = True 'Overrides raytrace properties

tMPC.log = True

mpcErr = MPCAdvancedRaytrace( tMPC )

Print "MPC error code = " & mpcErr

End Sub