The transforms are designed to map out-of-bound HDR values to standard dynamic range. If you try and use these macros on bounded pixel formats (16-bit and 8-bit) you may see odd results. with HDR merged documents from bracketed exposures, 32-bit 3D renders (OpenEXR, Radiance HDR) or single RAW exposures developed to 32-bit via the option in the Develop Assistant. Please note: these macros are designed for use in a 32-bit per channel pixel format, e.g. Version 4 completely revamps the approach of these macros, providing a huge range of implementations (currently twenty) and giving the user much more flexibility. See the included PDF for installation instructions and a detailed explanation of how to use the macros.įast, non-destructive macros that apply natural-looking tone mapping to your HDR images using procedural functions.
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