The context of the filter.
| Property | Description |
|---|---|
| filterFunction | The filter function for which the specified pass is being executed. |
| filterPassIndex | The index of the pass. |
| postProcessingPass | The filter pass that is being executed. |
| readsGamma | Indicates if sampling the source texture yields a color in the gamma color space. |
| writesGamma | Indicates if the shader must return a color in the gamma color space. |