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! to set Use Intensity Given in Photometric File ! to set area shape visible in reflection ! to set area shape visible - (if c4d_pho_UseIESSize = 1) ! to set general light type - (if there is no ies file loaded)Ĭ4d_gen_Intensity = gs_light_intensity / 100, ! parameters for Cinema4D rendering engine

! parameters for internal rendering engine Light c4dGenColor, ! to set the red component of the lightĬ4dGenColor, ! to set the green component of the lightĬ4dGenColor, ! to set the blue component of the light ! to create a light with an illumination from top to bottom. ! ARCHICAD coordinate system, therefore the following transformations are needed ! The coordinate system of the Cinema 4D rendering engine differs from the The following example shows a parametrisation of the LIGHT command with *.ies files: The IES files only contain information about the 3D dimsensions of the light. For the rendering engine the names of the *.ies files should be given in the LIGHT command‘s “c4d_pho_file” parameter. The processing of the photometric description files is done by the Cinema 4D rendering engine.

The GDL does not handle the *.ies files directly, it does not read information from them and does not check their validity. The used files have *.ies extension, and have ASCII encoding. IES – Illuminating Engineering Society – is an industry standard for photometric description of a light source.