This page describes the V-Ray Light Meter and its use.
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The options in this group allow us to specify the dimensions of the light meter tool and its resolution - the number of points at which the illumination will be measured.
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The following example shows how VrayLightMeter measures the illuminance from two lights.
VRayLightRect – Default settings with Intensity multiplier of 90
VRayLightSphere: Default settings
VRayLightMeter:
Witdth = 24
Lenght = 24
Witdth = 8
Lenght = 8
Viewport Orientation: ON
Viewport Text: ON
Viewport Colors: ON
Min = 0
Max = 1000
Measured Value: Total Illuminance
The following methods of the VRayLightMeter node are accessible from the Script Editor.
VRayLightMeter Method | Description |
vrayLightMeterCalculate("VrayLightMeterShapeX"); | Calculates the values along the light meter grid. |
vrayLightMeterSaveToCSV("VrayLightMeterShapeX", "path/filename.csv"); | Saves the values from the grid into the specified text file, in CSV (comma separated values) format. |
vray getLightmeterMaxValue <NODE NAME - STRING> [direct|gi|total] | Returns the maximum value of a lightmeter (for Direct/GI/Total light). |
vray getLightmeterAverageValue <NODE NAME - STRING> [direct|gi|total] | Returns the average value of a VRayLightMeter node. |
Notes
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