Try using this if your image viewer or compositing software swaps around channels (such as red or blue) incorrectly. If set to a non-zero value this causes the driver to take the first four channels and always calls them RGBA. The driver supports an optional "int asrgba" option. This driver supports OpenEXR, a high dynamic-range image, floating point file format developed by Industrial Light & Magic. This flexible viewer lets you easily scroll, zoom, adjust exposure, and review previous renders among other things.įinally, the deepexr driver can produce deep images in the OpenEXR 2.0 format. Both drivers can write out periodic checkpoint images for incremental rendering, though currently PRMan can only restore from OpenEXR images.įor screen display, a good choice is the "it" driver for sending images to it3 for display with RenderMan installed. Both of these drivers can create files with pixels ranging from 8-bit quantized all the way up to full floating point HDRI, and with any number of channels per pixel. In terms of files, the two main drivers for writing shallow images for production use in RenderMan write OpenEXR and TIFF images, respectively. Generally, they will either send it to a file or display it immediately to the screen. Display drivers are plugins that receive image data from the renderer and output it in some fashion.
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