--help, -h
Print this message
--license
Print copyright and license information
--quiet, -q
Quiet mode. Suppress all non-error output
--type=[cubemap|equirect|octahedron|ktx], -t [cubemap|equirect|octahedron|ktx]
Specify output type (default: cubemap)
--format=[exr|hdr|psd|rgbm|rgb32f|png|dds|ktx], -f [exr|hdr|psd|rgbm|rgb32f|png|dds|ktx]
Specify output file format. ktx implies -type=ktx. KTX files are always encoded with 3-channel
RGB_10_11_11_REV data
--compression=COMPRESSION, -c COMPRESSION
Format specific compression:
KTX:
astc_[fast|thorough]_[ldr|hdr]_WxH, where WxH is a valid block size s3tc_rgba_dxt5
etc_FORMAT_METRIC_EFFORT
FORMAT is rgb8_alpha, srgb8_alpha, rgba8, or srgb8_alpha8 METRIC is rgba, rgbx, rec709, numeric,
or normalxyz EFFORT is an integer between 0 and 100
PNG: Ignored PNG RGBM: Ignored Radiance: Ignored Photoshop: 16 (default), 32 OpenEXR: RAW, RLE,
ZIPS, ZIP, PIZ (default) DDS: 8, 16 (default), 32
--size=power-of-two, -s power-of-two
Size of the output cubemaps (base level), 256 by default Also applies to DFG LUT
--deploy=dir, -x dir
Generate everything needed for deployment into <dir>
--extract=dir
Extract faces of the cubemap into <dir>
--extract-blur=roughness
Blurs the cubemap before saving the faces using the roughness blur
--clamp
Clamp environment before processing
--no-mirror
Skip mirroring of generated cubemaps (for assets with mirroring already backed in)
--ibl-samples=numSamples
Number of samples to use for IBL integrations (default 1024)
--ibl-ld=dir
Roughness pre-filter into <dir>
--sh-shader
Generate irradiance SH for shader code
Privateuseonly:--ibl-dfg=filename.[exr|hdr|psd|png|rgbm|rgb32f|dds|h|hpp|c|cpp|inc|txt]
Compute the IBL DFG LUT
--ibl-dfg-multiscatter
If --ibl-dfg is set, computes the DFG for multi-scattering GGX
--ibl-dfg-cloth
If --ibl-dfg is set, adds a 3rd channel to the DFG for cloth shading
--ibl-is-mipmap=dir
Generate mipmap for pre-filtered importance sampling
--ibl-irradiance=dir
Diffuse irradiance into <dir>
--ibl-no-prefilter
Use importance sampling instead of prefiltered importance sampling
--ibl-min-lod-size
Minimum LOD size [default: 16]
--sh=bands
SH decomposition of input cubemap
--sh-output=filename.[exr|hdr|psd|rgbm|rgb32f|png|dds|txt]
SH output format. The filename extension determines the output format
--sh-irradiance, -i
Irradiance SH coefficients
--sh-window=cutoff|no|auto (default), -w cutoff|no|auto (default)
SH windowing to reduce ringing
--debug, -d
Generate extra data for debugging
Cubemaps and equirectangular formats are both supported, automatically detected according to the aspect
ratio of the source image.
Usages:
cmgen [options] <input-file> cmgen [options] <uv[N]>
Supportedinputformats:
PNG, 8 and 16 bits Radiance (.hdr) Photoshop (.psd), 16 and 32 bits OpenEXR (.exr)
--help, -h
Print this message
--license
Print copyright and license information
--quiet, -q
Quiet mode. Suppress all non-error output
--type=[cubemap|equirect|octahedron|ktx], -t [cubemap|equirect|octahedron|ktx]
Specify output type (default: cubemap)
--format=[exr|hdr|psd|rgbm|rgb32f|png|dds|ktx], -f [exr|hdr|psd|rgbm|rgb32f|png|dds|ktx]
Specify output file format. ktx implies -type=ktx. KTX files are always encoded with 3-channel
RGB_10_11_11_REV data
--compression=COMPRESSION, -c COMPRESSION
Format specific compression:
KTX:
astc_[fast|thorough]_[ldr|hdr]_WxH, where WxH is a valid block size s3tc_rgba_dxt5
etc_FORMAT_METRIC_EFFORT
FORMAT is rgb8_alpha, srgb8_alpha, rgba8, or srgb8_alpha8 METRIC is rgba, rgbx, rec709, numeric,
or normalxyz EFFORT is an integer between 0 and 100
PNG: Ignored PNG RGBM: Ignored Radiance: Ignored Photoshop: 16 (default), 32 OpenEXR: RAW, RLE,
ZIPS, ZIP, PIZ (default) DDS: 8, 16 (default), 32
--size=power-of-two, -s power-of-two
Size of the output cubemaps (base level), 256 by default Also applies to DFG LUT
--deploy=dir, -x dir
Generate everything needed for deployment into <dir>
--extract=dir
Extract faces of the cubemap into <dir>
--extract-blur=roughness
Blurs the cubemap before saving the faces using the roughness blur
--clamp
Clamp environment before processing
--no-mirror
Skip mirroring of generated cubemaps (for assets with mirroring already backed in)
--ibl-samples=numSamples
Number of samples to use for IBL integrations (default 1024)
--ibl-ld=dir
Roughness pre-filter into <dir>
--sh-shader
Generate irradiance SH for shader code
Privateuseonly:--ibl-dfg=filename.[exr|hdr|psd|png|rgbm|rgb32f|dds|h|hpp|c|cpp|inc|txt]
Compute the IBL DFG LUT
--ibl-dfg-multiscatter
If --ibl-dfg is set, computes the DFG for multi-scattering GGX
--ibl-dfg-cloth
If --ibl-dfg is set, adds a 3rd channel to the DFG for cloth shading
--ibl-is-mipmap=dir
Generate mipmap for pre-filtered importance sampling
--ibl-irradiance=dir
Diffuse irradiance into <dir>
--ibl-no-prefilter
Use importance sampling instead of prefiltered importance sampling
--ibl-min-lod-size
Minimum LOD size [default: 16]
--sh=bands
SH decomposition of input cubemap
--sh-output=filename.[exr|hdr|psd|rgbm|rgb32f|png|dds|txt]
SH output format. The filename extension determines the output format
--sh-irradiance, -i
Irradiance SH coefficients
--sh-window=cutoff|no|auto (default), -w cutoff|no|auto (default)
SH windowing to reduce ringing
--debug, -d
Generate extra data for debugging
cmgen is a command-line tool for generating SH... October 2021 CMGEN(1)
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