S_CausticsSimulates the patterns created when light rays are reflected or refracted by a curved surface. Caustics can often be seen at the bottom of a swimming pool in bright sunlight or on objects viewed underwater.In the Sapphire Render category.
Inputs:
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Parameters:
-
Load Preset:
Push-button
.
Brings up the Preset Browser to browse all available presets for this effect.
-
Save Preset:
Push-button
.
Brings up the Preset Save dialog to save a preset for this effect.
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Mocha:
Default:
0,
Range:
0 or greater.
Brings up the Mocha window for tracking footage and generating masks.
-
Blur Mocha:
Default:
0,
Range:
0 or greater.
Blurs the Mocha Mask by this amount before using. This can be used to soften the edges or quantization artifacts of the mask, and smooth out the time displacements.
-
Mocha Opacity:
Default:
1,
Range:
0 to 1.
Controls the strength of the Mocha mask. Lower values reduce the intensity of the effect.
-
Invert Mocha:
Check-box, ย Default:
off.
If enabled, the black and white of the Mocha Mask are inverted before applying the effect.
-
Resize Mocha:
Default:
1,
Range:
0 to 2.
Scales the Mocha Mask. 1.0 is the original size.
-
Resize Rel X:
Default:
1,
Range:
0 to 2.
The relative horizontal size of the Mocha Mask.
-
Resize Rel Y:
Default:
1,
Range:
0 to 2.
The relative vertical size of the Mocha Mask.
-
Shift Mocha:
X & Y, ย Default:
screen center.
Offsets the position of the Mocha Mask.
-
Dilate Mocha:
Default:
0,
Range:
-100 to 100.
Dilates or erodes the Mocha Mask by this pixel amount before using.
-
Dilation Quality:
Popup menu, ย Default: Fast
.
Selects whether Dilate Mocha adusts quickly in default Fast mode or looks better in High quality mode.
-
Fast:
Dilate Mocha in Fast mode for quick adjustments.
- High: Dilate Mocha in High quality mode for a better looking mask shape.
- High: Dilate Mocha in High quality mode for a better looking mask shape.
-
Fast:
Dilate Mocha in Fast mode for quick adjustments.
-
Bypass Mocha:
Check-box, ย Default:
off.
Ignore the Mocha Mask and apply the effect to the entire source clip.
-
Show Mocha Only:
Check-box, ย Default:
off.
Bypass the effect and show the Mocha Mask itself.
-
Combine Masks:
Popup menu, ย Default: Union
.
Determines how to combine the Mocha Mask and Input Mask when both are supplied to the effect.
-
Union:
Uses the area covered by both masks together.
- Intersect: Uses the area that overlaps between the two masks.
- Mocha Only: Ignore the Input Mask and only use the Mocha Mask.
- Intersect: Uses the area that overlaps between the two masks.
-
Union:
Uses the area covered by both masks together.
-
Ray Focus:
Default:
15,
Range:
0 to 50.
Alter this to bring the caustic pattern into focus.
-
Ray Density:
Integer, ย Default:
2,
Range:
1 to 5.
Increasing this value will increase the quality of the caustic pattern.
-
Ray Blur:
Default:
0.02,
Range:
0 to 0.2.
Softens the caustic pattern.
-
Frequency:
Default:
3,
Range:
0.1 to 20.
The frequency of the cautic pattern. Increase for more and smaller elements, or decrease for fewer and larger.
-
Complexity:
Default:
2.5,
Range:
0 to 5.
The complexity of the caustic pattern. Increase for more high frequency companents within the casutic pattern
-
Shift:
X & Y, ย Default:
screen center.
Translation of the caustic pattern. This parameter can be adjusted using the Shift Widget.
-
Speed:
Default:
1,
Range:
0 to 10.
Animation speed of the cuastic pattern.
-
Seed:
Default:
0.123,
Range:
0 or greater.
Used to initialize the random number generator. The actual seed value is not significant, but different seeds give different results and the same value should give a repeatable result.
-
Blur Bump Image:
Default:
0,
Range:
0 to 1.
The blur applied to the height map
-
Brightness1:
Default:
0.5,
Range:
0 or greater.
Scales the brightness of Color1. Increase for more contrast.
-
Color1:
Default rgb:
[1 1 1].
The color of the 'brighter' parts of the texture. The colors of the result are determined by an interpolation between Color0 and Color1.
-
Color0:
Default rgb:
[0 0.05 1].
The color of the 'darker' parts of the texture.
-
Offset0:
Default:
0,
Range:
any.
Adds this value to color0. Decrease to a negative value for more contrast.
-
Bg Brightness:
Default:
1,
Range:
0 or greater.
Scales the brightness of the Background input.
-
Bg Combine:
Popup menu, ย Default: Screen
.
Determines how the texture is combined with the Background.
-
Caustic Only:
gives only the caustic texture with no Background.
- Mult: the texture is multiplied by the Background.
- Add: the texture is added to the Background.
- Screen: the texture is blended with the Background using a screen operation.
- Difference: the result is the difference between the texture and Background.
- Overlay: the texture is combined with the Background using an overlay function.
- Mult: the texture is multiplied by the Background.
-
Caustic Only:
gives only the caustic texture with no Background.
-
Mask Use:
Popup menu, ย Default: Luma
.
Determines how the Mask input channels are used to make a monochrome mask.
-
Luma:
the luminance of the RGB channels is used.
- Alpha: only the Alpha channel is used, or if there is no valid Alpha channel the Red channel is used.
- Alpha: only the Alpha channel is used, or if there is no valid Alpha channel the Red channel is used.
-
Luma:
the luminance of the RGB channels is used.
-
Blur Mask:
Default:
0.05,
Range:
0 or greater.
Blurs the Mask input by this amount before using. This can provide a smoother transition between the masked and unmasked areas. It has no effect unless the Mask input is provided.
-
Invert Mask:
Check-box, ย Default:
off.
If on, inverts the mask input so the effect is applied to areas where the Mask is black instead of white. This has no effect unless the Mask input is provided.
