GeneratePlyFile Generate a 3D Ply file from a DEM and a color image. Geometry QgsProcessingParameterRasterLayer|indem|The input DEM image|None|False OTBParameterChoice|mode|Conversion Mode|dem;3dgrid|0|True OTBParameterChoice|map|Map Projection|utm;lambert2;lambert93;wgs;epsg|0|True QgsProcessingParameterNumber|map.utm.zone|Zone number|QgsProcessingParameterNumber.Integer|31|True QgsProcessingParameterBoolean|map.utm.northhem|Northern Hemisphere|false|True QgsProcessingParameterCrs|map.epsg.code|EPSG Code|ProjectCrs|True QgsProcessingParameterRasterLayer|incolor|The input color image|None|False QgsProcessingParameterFileDestination|out|The output Ply file|None|None|False