3Delight 12.0 User's Manual: 8.11 Radiance display driver

Short Contents

1. Welcome to 3Delight!
2. Installation
3. Using 3Delight
4. Integration with Third Party Software
5. 3Delight and RenderMan
6. The Shading Language
7. Rendering Guidelines
8. Display Drivers
9. Error Messages
10. Developer's Corner
11. Acknowledgements
12. Copyrights and Trademarks
Concept Index
Function Index
List of Figures

8.11 Radiance display driver

Use this display driver to write files compatible with Radiance. Floating point values are required for this display driver since it is intended as a HDRI output. The following parameter is recognized by this display driver:

"uniform string colorspace" ["rgb"]: Specifies in which color space to encode the values. The two possible values are "rgb" and "xyz" and the default is "rgb". Be careful when using "xyz" color space since it implies a RGB to XYZ conversion inside the display driver and RGB values are assumed to be linear, so setting Exposure to 1 1 is essential. Note that run-length encoding of Radiance files is not supported.

EXAMPLE

# Write out a radiance file, using XYZ colorspace.
Exposure 1 1
Quantize "rgb" 0 0 0 0  # use floating point data
Display "hdri.pic" "radiance" "rgb" "string colorspace" "xyz"

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