FilterEffectOptions

Filter effect options.

struct FilterEffectOptions {
  const char * path;
  float strength;

  FilterEffectOptions(const char * lut3dPath, float filterStrength) : path(lut3dPath), strength(filterStrength) {}
  FilterEffectOptions() : path(OPTIONAL_NULLPTR), strength(0.5) {}
};

Attributes

path
The absolute path to the local cube map texture file, which can be used to customize the filter effect. The specified .cude file should strictly follow the Cube LUT Format Specification; otherwise, the filter options do not take effect. The following is a sample of the .cude file:

LUT_3D_SIZE 32
0.0039215689 0 0.0039215682
0.0086021447 0.0037950677 0
...
0.0728652592 0.0039215689 0
Note:
  • The identifier LUT_3D_SIZE on the first line of the cube map file represents the size of the three-dimensional lookup table. The LUT size for filter effect can only be set to 32.
  • The SDK provides a built-in built_in_whiten_filter.cube file. You can pass the absolute path of this file to get the whitening filter effect.
strength
The intensity of the filter effect, with a range value of [0.0,1.0], in which 0.0 represents no filter effect. The default value is 0.5. The higher the value, the stronger the filter effect.