Caustics
In: Texture Generators*/Noises*
Complex
Description
Generates projected caustics based on a height map and a light direction.Comes in both Grayscale and color versions, differences are subtle but the color version adds color dispersioneffects. Light is cast from a single point, no Environment map is used.
Parameters
- Output Color Space: Raw, sRGB
Set output color space. - Photon Grid Size: Auto, 512, 1024, 2048, 4096
Sets quality by adjusting grid size, but defaults to matching input. Can be used to speed up calculation. - Surface Height Scale: 0.0 - 1.0
Multiplier to determine how the height is interpreted. - Surface Height Position: 0.0 - 1.0
Set distance of refracting surface to projection. - Surface IOR: 1.0 - 2.0
Set refraction index, in the color version this adds more color dispersion. - Photon Size: 1.0 - 50.0
Photon size affects crispness of the effect. - Dispersion: 0.0 - 0.01 (Color version only)
Affect just the color dispersion. Not visible when IOR is low. - Jittering: 0.0 - 1.0
Add irregular jittering to the cast photon particles. - Light Position:
Moves the light position. Also done through a gizmo in the 2D view. - Background Color: (Color value) (Color version only)
Change the background color. Limited to black in the grayscale version. - Non Square Expansion: False/True
Enable compensation of squash and stretch with non-square ratios.
Example Images
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