God Rays
Brief Description
Average the image over a path defined by an accumulated transform. This can be used to create crepuscular rays (also called God rays) by setting the scale and center parameters: scale governs the length of rays, and center should be set to the Sun or light position (which may be outside of the image). This is also useful to apply long shadows to elements with an alpha channel (such as Text). This can also be used to create directional blur using a fixed number of samples (as opposed to Directional Blur, which uses an adaptive sampling method).
Controls
| Parameter / Script Name | Type | Default | Function |
|---|---|---|---|
Enabled / enabled | Boolean | On | |
Red / process_red | Boolean | On | Enable the red channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0 |
Green / process_green | Boolean | On | Enable the green channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0 |
Blue / process_blue | Boolean | On | Enable the blue channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0 |
Alpha / process_alpha | Boolean | On | Enable the alpha channel in output. Otherwise if there's a source the content of the main source is returned instead, else 0 |
Position / center | Float 2D | 0, 0 | |
Scale / scale | Float 2D | 1, 1 | |
Anchor Point / center_offset | Float 2D | 0, 0 | |
Rotation / rotate | Float | 0 | |
Skew / skew | Float 2D | 0, 0 | |
Skew Order / skew_order | Choice | XY | - XY - YX |
Invert Transform / invert | Boolean | Off | |
Amount / amount | Float | 1 | |
Centered / centered | Boolean | Off | |
From Color / from_color | Color | 1, 1, 1, 1 | |
To Color / to_color | Color | 1, 1, 1, 1 | |
Gamma / gamma | Color | 1, 1, 1, 1 | |
Steps / steps | Float | 5 | Higher means more samples and more quality, at the expense of a slower render |
Output Mode / output_mode | Choice | Accumulate | The maximum intensity is used instead of the average - Accumulate: The average intensity along the accumulation vector is used - Minimum: The minimum intensity along the accumulation vector is used - Maximum: The maximum intensity along the accumulation vector is used |
Color Ramp Mode / interp_mode | Choice | Linear (Average Alpha) | - Gamma Ramp - Linear (Average Alpha) - Linear (Stack Alpha) |
Crop To Composition Format / crop_source_to_comp | Boolean | On | Useful to increase performances when doing large blurs of the size of the composition if you don't care that the intensities outside the comp get properly blurred |
Mask / mask | Image | - | |
Mix / mix_with_source | Float | 1 | Dissolves between the original image at 0 and the image with the effect applied at 1 |