Supported File Formats

IntensityView supports several photometric exchange formats through built-in document streams. The built-in list is defined by the intensity document stream factory. On Windows, additional formats can be registered by compatible stream plugins at runtime.

Built-in formats

Format	Extensions	Typical use
IES LM-63	.ies	North American photometric exchange format for luminaires.
EULUMDAT	.ldt	European luminaire photometric exchange format.
PHILLUM	.phl	Philips/Signify photometric data exchange format.
EikonalWorks Intensity	.ewi	Native EikonalWorks binary format for intensity documents and richer internal data.
IES TM-14	.tm1, .cib	CIE/IES TM-14 style intensity distribution exchange.
IES TM-33 JSON	.json, .tm33	Structured TM-33 photometric data in JSON form.
IES TM-33 XML	.xml	Structured TM-33 photometric data in XML form.
GLDF	.gldf	Global Lighting Data Format package files.

The file open dialog groups these extensions into a combined photometric file filter and individual format filters.

Choosing a format

Use the format expected by the next tool in your workflow. IES and EULUMDAT are widely accepted by lighting calculation software. TM-33 and GLDF are structured modern exchange formats. Use EWI when you need to preserve EikonalWorks-specific document structure, multiple channels, property data, color data, and editing state with minimal loss.

Format-specific notes

Each format page describes what the format is normally used for and how IntensityView treats it. Export behavior may be limited by what a target format can represent. When in doubt, keep an .ewi copy as the project master and export exchange formats as deliverables.