Creating and Using a Config File
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Some parameters for RapidCompact CLI are directly available with the respective commands.
However, many relevant options (like the choice of a specific algorithm for a certain
task, or the resolution for a specific type of texture image) are only available via the
settings mechanism of RapidCompact CLI.
The ratio behind this is to ease usage of the command line, especially for users that are not
familiar with all the details, while still allowing you to configure all relevant
parameters when necessary.
One way to configure the settings is to use a config file. The config
file is a text file in JSON format, which can be easily edited. To create one that
already contains the default values for all the available settings, use the command
write_config with a filename. Example:
rpdx --write_config rpd_config.json
Additionally it is possible to just use the short command
write_config without an argument. The resulting file will always be named as default: rpd_config.json Example:
rpdx --write_config
This example writes a config file with filename "rpd_config.json". This special
filename is used by RapidCompact CLI to check, on startup, for an existing config file inside
the current directory. If the file has another filename, or if it is placed at
another location, you can use the read_config command to read it when
launching RapidCompact CLI. Example:
rpdx --read_config someDirectory/myConfig.json
Changing the settings inside a config file is pretty straightforward - just use
your favorite text editor to alter the default values and save the file. When looking
into a config file, you will notice that settings' names are using a URN-like scheme,
separating several parts of the name by a colon. Examples:
[...]
"decimation:method" : "quadric",
"rendering:imageWidth" : 1024,
"rendering:imageHeight" : 1024,
[...]
The colons are used to separate different parts of each setting's name, where the
first part is always the subsystem of RapidCompact CLI that uses the setting. In the above
example, for instance, the prefix "rendering" tells us that the following part
"imageWidth" refers to a setting inside that subsystem (and nowhere else). For
example, the width of images for texture generation will not be affected by this
setting.
Changing Settings using the Command Line
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Sometimes, you might want to try out different settings without having to use a
config file. This is easily possible by using the command set
(shorthand: s). Example:
rpdx -i myMesh.ply -s decimation:method edgeLength --decimate v:10% -e myMesh-decimated.ply
In this example, a mesh is loaded and its 3D geometry is decimated to 10% of the
original vertices. Instead of using the standard decimation method or the one from
the default config file, it is explicitly set to
edgeLength before the decimater is used.
In general, the default value of a setting can be overriden in both ways, using a
config file or using the command line. Both methods, using a config file and using
s on the command line, override the current values of the given
settings, so the current value of a setting also depends on the order in which
previous read_config or s commands are executed. If you
have use for this, you can also split up one large config file into multiple smaller
ones, to separate different aspects of configuration. This is possible since the
settings specified inside the config file do not need to be complete. Instead, a
config file will only override settings for the parameters that are specified,
leaving unspecified settings untouched. Example:
rpdx --read_config decimation_config.json --read_config rendering_config.json ...
Finally, to print the current value of a setting, there is also a get
command (shorthand: g).
Changing Logging Verbosity
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By default, RapidCompact CLI will print some information to the standard output while
executing commands. By specifying a log level, you can influence how verbose this
output will be. To do so, use the "logging:infoLevel" setting. The corresponding
values are:
- 0 - NONE: quiet mode, no logging
- 1 - ERRORS: only errors are shown
- 2 - WARNINGS: only errors and warnings are shown
- 3 - INFOS: errors, warnings and regular info messages are shown
- 4 - DEBUG: verbose mode, all information available is shown
Available Settings
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The following table lists all available settings of RapidCompact CLI, grouped by the related functionality or command.
General
| Name |
Type |
Default |
Valid Range |
Quick Description |
| general:maxConcurrentThreads |
Int |
0 |
{0 .. inf} |
maximum number of concurrent threads. 0 means no limit (adapts to number of cores), other numbers act as fixed maximum. |
| general:normalsHardAngleDeg |
Real |
60 |
{0 .. 180} |
hard angle (degrees) used for normal generation (0 = everything flat, 180 = everything smooth) |
| general:normalsComputationMethod |
String |
area |
angle, area |
|
Log
| Name |
Type |
Default |
Valid Range |
Quick Description |
| logging:infoLevel |
Int |
3 |
{0 .. 4} |
logging verbosity (0 = quiet, 4 = debug) |
Model Import
| Name |
Type |
Default |
Valid Range |
Quick Description |
| import:rotateZUp |
Flag |
false |
{true, false} |
turns rotation to z-axis pointing upwards on/off |
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Model Export
| Name |
Type |
Default |
Valid Range |
Quick Description |
| export:centerModel |
Flag |
false |
{true, false} |
centers the model around the coordinate origin before export |
| export:displacementToNormalMapAlpha |
Flag |
false |
{true, false} |
bakes displacement values into the normal map's alpha channel |
| export:preferBinaryFormat |
Flag |
true |
{true, false} |
turns export in binary format on/off (if available) |
| export:unlitMaterials |
Flag |
false |
{true, false} |
enables that all materials are specified as unlit, for .gltf/.glb export |
| export:baseColorMapFormat |
String |
auto |
jpg; png |
desired output file format for base color maps |
| export:displacementMapFormat |
String |
auto |
jpg; png |
desired output file format for displacement maps |
| export:emissiveMapFormat |
String |
auto |
jpg; png |
desired output file format for emissive maps |
| export:geometryCompression |
String |
none |
none; draco; dracoLossy |
desired geometry compression (currently only available for GLTF/GLB export) |
| export:metallicMapFormat |
String |
auto |
jpg; png |
desired output file format for metallic maps |
| export:normalMapFormat |
String |
auto |
jpg; png |
desired output file format for normal maps |
| export:occlusionMapFormat |
String |
auto |
jpg; png |
desired output file format for occlusion maps |
| export:roughnessMapFormat |
String |
auto |
jpg; png |
desired output file format for roughness maps |
| export:textureMapFilePrefix |
String |
|
|
prefix to be used for texture map names |
Geometry Compression
| Name |
Type |
Default |
Valid Range |
Quick Description |
| geoCompression:normalQuantization |
Int |
10 |
{1 .. 32} |
bits per normal vertex attribute (if geometry compression is enabled) |
| geoCompression:positionQuantization |
Int |
14 |
{1 .. 32} |
bits per position vertex attribute (if geometry compression is enabled) |
| geoCompression:uvQuantization |
Int |
12 |
{1 .. 32} |
bits per UV vertex attribute (if geometry compression is enabled) |
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Material Settings
| Name |
Type |
Default |
Valid Range |
Quick Description |
| material:defaultMetallic |
Real |
0.2 |
{0 .. 1} |
default material metallic property |
| material:defaultRoughness |
Real |
0.4 |
{0 .. 1} |
default material roughness property |
| material:defaultBaseColor |
String |
1 1 1 |
, , |
default material base color |
Rendering
| Name |
Type |
Default |
Valid Range |
Quick Description |
| rendering:showBackFaces |
Flag |
false |
{true, false} |
turns rendering of backfaces on/off |
| rendering:imageHeight |
Int |
1024 |
{1 .. 8192} |
height to be used for rendered images |
| rendering:imageWidth |
Int |
1024 |
{1 .. 8192} |
width to be used for rendered images |
| rendering:sampleCount |
Int |
4 |
{1 .. inf} |
number of samples per pixel for image rendering |
| rendering:background |
String |
transparent |
{'transparent', 'white', 'black', 'gradientGray'} |
background to be used for rendered images |
| rendering:cameraPosition |
String |
auto |
auto |
camera position vector for rendering |
| rendering:cameraUpVector |
String |
0 1 0 |
, , |
camera up direction for rendering |
| rendering:cameraViewVector |
String |
0 0 -1 |
, , |
camera direction vector for rendering |
| rendering:shadingMode |
String |
pbr |
{'pbr', 'wireframe', 'flat', 'diffuse'} |
rendering method |
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Texture Baking
| Name |
Type |
Default |
Valid Range |
Quick Description |
| baking:generateDisplacement |
Flag |
false |
{true, false} |
enables/disables the generation of displacement maps |
| baking:generateNormal |
Flag |
true |
{true, false} |
enables/disables the generation of normal maps |
| baking:tangentSpaceNormals |
Flag |
true |
{true, false} |
switches between tangent-/object-space normal maps |
| baking:baseColorMapResolution |
Int |
2048 |
{1 .. 8192} |
resolution for baked base color maps |
| baking:displacementMapResolution |
Int |
2048 |
{1 .. 8192} |
resolution for baked displacement maps |
| baking:metallicMapResolution |
Int |
2048 |
{1 .. 8192} |
resolution for baked metallic maps |
| baking:normalMapResolution |
Int |
2048 |
{1 .. inf} |
resolution for baked normal maps |
| baking:occlusionMapResolution |
Int |
2048 |
{1 .. 8192} |
resolution for baked AO maps |
| baking:roughnessMapResolution |
Int |
2048 |
{1 .. 8192} |
resolution for baked roughness maps |
| baking:sampleCount |
Int |
4 |
{1, 4, 8} |
number of samples per texel for texture baking |
| baking:forcedDisplacementMax |
Real |
0 |
{-inf .. inf} |
(see baking:forcedDisplacementMin) |
| baking:forcedDisplacementMin |
Real |
0 |
{-inf .. inf} |
when forcedDisplacementMax and forcedDisplacementMax are given and valid (min < max), their values are used to clamp and normalize the final entries in the displacement map |
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Ambient Occlusion
| Name |
Type |
Default |
Valid Range |
Quick Description |
| ao:enabled |
Flag |
false |
{true, false} |
turns AO (Ambient Occlusion) generation on/off |
| ao:replaceMissingAlbedo |
Flag |
true |
{true, false} |
turns replacement of missing base color by AO map on/off |
| ao:textureSamples |
Int |
8 |
{0 .. 64} |
number of samples per texel for AO map generation |
| ao:vertexSamples |
Int |
100 |
{1 .. 1024} |
number of samples per vertex for AO generation |
| ao:filterRadius |
Real |
5 |
{0 .. 16} |
filter radius for smoothing the AO map (if any) |
UV Inpainting
| Name |
Type |
Default |
Valid Range |
Quick Description |
| inpainting:radius |
Real |
32 |
{0 .. 32} |
radius, in pixels, for texture inpainting |
Mesh Decimation
| Name |
Type |
Default |
Valid Range |
Quick Description |
| decimation:collapseUnconnectedVertices |
Flag |
true |
{true, false} |
switches collapsing of nearby, unconnected vertices on/off |
| decimation:preserveTopology |
Flag |
false |
{true, false} |
switches computation of new normals after decimation on or off |
| decimation:preserveUVs |
Flag |
false |
{true, false} |
preserves texture coordinates during decimation |
| decimation:recomputeNormals |
Flag |
true |
{true, false} |
switches computation of new normals after decimation on or off |
| decimation:boundaryPreservationFactor |
Real |
0.5 |
{0 .. 1} |
factor to steer preservation of boundaries during decimation |
| decimation:collapseDistanceThreshold |
Real |
0.05 |
{0 .. 0.10000000000000001} |
threshold w.r.t BBox diagonal for collapsing nearby vertices |
| decimation:qualityWeight |
Real |
0 |
{0 .. 1} |
weights for vertex quality values during decimation, if any |
| decimation:defaultTarget |
String |
f:20000 |
; f:; %; f:% |
target parameter for decimation during compact |
| decimation:method |
String |
quadric |
{'quadric', 'edgeLength'} |
method to be used for decimation |
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Remeshing
| Name |
Type |
Default |
Valid Range |
Quick Description |
| remeshing:quadDominant |
Flag |
false |
{true, false} |
switches remeshing from creating quad meshes to quad dominant meshes |
Mesh Segmentation
| Name |
Type |
Default |
Valid Range |
Quick Description |
| segmentation:maxPrimitivesPerChart |
Int |
10000 |
{1 .. inf} |
limits max number primitives in any UV chart |
| segmentation:chartAngleDeg |
Real |
130 |
{0 .. 360} |
threshold (degrees) for overall curvature of 3D charts |
| segmentation:cutAngleDeg |
Real |
88 |
{0 .. 180} |
threshold (degrees) for cutting sharp edges |
Mesh Unwrapping
| Name |
Type |
Default |
Valid Range |
Quick Description |
| unwrapping:cutOverlappingPieces |
Flag |
true |
{true, false} |
turns removal of UV self-overlaps through cutting on/off |
| unwrapping:method |
String |
isometric |
{'isometric', 'forwardBijective', 'fixedBoundary', 'fastConformal', 'conformal'} |
method to be used for UV unwrapping |
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Chart Packing
| Name |
Type |
Default |
Valid Range |
Quick Description |
| packing:chartPadding |
Real |
0.000488281 |
{0 .. 1} |
relative desired padding around charts inside the UV atlas |
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