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Description
This feature allows the user to test their implementation of a Scripted BSDF scatter model by entering custom Incident, Specular and Scatter direction vectors as well as a Position on the surface and evaluating the scripted model's BSDF or TIS for a given wavelength.
Navigation
This feature can be accessed by pressing the "Test" button in the upper left corner of the Scripted BSDF dialog box.
Controls
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Control
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Inputs / Description
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Defaults
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Input
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Incident
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X, Y, Z direction vector of the incident ray with respect to the local surface normal coordinate system.
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0, 0, 1
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Specular
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X, Y, Z direction vector of the specular ray with respect to the local surface normal coordinate system.
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0, 0, 1
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Scatter
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X, Y, Z direction vector of the scatter ray with respect to the local surface normal coordinate system.
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0, 0.25, 1
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Position
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X, Y, Z position of the ray's intersection with the surface in the local coordinate system.
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0, 0, 0
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Wavelength (micron)
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Wavelength in microns for the test ray.
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Default system wavelength
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New Random
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Generates a new random number to be used when calculating the BSDF value.
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Random
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Send TIS Request
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When toggled, a request to calculate the TIS is made. No BSDF value will be determined. The Summary output will indicate whether the TIS request was a success or failure.
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Unchecked
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Results
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BSDF
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BSDF value calculated for the conditions supplied in the Input section of the dialog. When the "Send TIS Request" option is toggled, no BSDF value is computed.
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0
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Fraction TIS
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Reports the TIS as a fraction of that calculated at x,y,z = 0,0,0.
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0
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Wavelength (micron)
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Reports the wavelength of the scattered ray after undergoing the scatter event.
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0
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Position
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Reports the position of the ray after undergoing the scatter event.
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0,0,0
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Summary
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Reports whether the evaluation of the BSDF or TIS request was a success or failure.
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Perform Test
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Executes the scatter evaluation for the conditions in Input
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Cancel
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Discard settings and close dialog box.
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Help
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Access this Help page.
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Related Topics
Scripted BSDF
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Copyright © Photon Engineering, LLC
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