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Watercolor render

Watercolor shader style

Table of contents
  1. Style breakdown
  2. Attributes
  3. Bloom
    1. Bloom Intensity
    2. Bloom Size
    3. Bloom Blur
  4. Ambient Occlusion
    1. AO Blend Mode
    2. AO Radius
    3. AO Strength
  5. Atmospheric Effects
    1. Atmosphere Tint
    2. Atmosphere Range
  6. Watercolor
    1. Pigment Density
    2. Paper Granulation
    3. Edge Darkening
    4. Edge Darkening Intensity
    5. Edge Darkening Width
    6. Bleeding Radius
    7. Drybrush Threshold
    8. Drybrush Color
    9. Max Gaps Overlaps Width
  7. Post Processing

Back to Watercolor Features

Style breakdown

The watercolor shader style emulates traditional watercolor animation in 3D, providing art-directed control over most characteristic effects including color-bleeding, pigment turbulence, edge darkening and more.

This shader style depends on the Flair material, which can be assigned onto any mesh object. The material embeds painterly reflectance models and supports the art-direction framework of Flair. The framework allows to fully control the watercolor shader effects at each level of control, from the entire image using sliders to individual vertices.

The style is based on the award-winning PhD research of our founder, but each effect has been continously improved for production. While production-proven, the watercoolor shader style may not have all features that you need. So please let us know if we can help polish the look exactly to your requirements and pipeline.

In this page, we only document global attributes specific to the watercolor shader style. To learn more about other global attributes, please see the globals node documentation.

Attributes

A series of watercolor attributes are provided within the globals node to control and refine the watercolor shader style.

Style attributes
Style attributes in the globals node

Bloom

Bloom, sometimes also referred to as Glow, leaks light from bright areas into surrounding areas.

Bloom Intensity

Defines the intensity/amount of the bloom effect.

Bloom Size

Defines the threshold at which a pixel is bright enough to be considered for the bloom effect.

Bloom Blur

Defines the radious of light leakage to the surrounding areas.


Ambient Occlusion

Ambient Occlusion (AO) darkens the image in areas that are hard to reach for the ambient light due to the local shape of the geometry (e.g. concavities, crevices, holes). Note that this effect depends only on the geometry (and the viewpoint, to a lesser extent), and not on the lights present in the scene.

Flair currently uses a screen-space implementation of ambient occlusion based on the Ground-Truth Ambient Occlusion algorithm (GTAO).

AO Blend Mode

Defines how the computed ambient occlusion is applied on the final image.

  • None: AO is not applied.
  • Multiply: the AO is multiplied over the image.
  • Color Burn: same as above, except that the AO is blended over the image using the Color Burn blending mode.
  • Style-specific: AO is applied by the current style, so the effect depends on the style implementation. (default)
    • With styles other than the Graph styles, the AO modulates the pigment density, resulting in darker colors in occluded areas.

AO Radius

Defines the radius used by the ambient occlusion filter: larger radius results in larger darkened areas.

AO Strength

Defines the strength of ambient occlusion: higher values make the ambient occlusion darker.


Atmospheric Effects

Atmospheric effects are useful to add depth to bigger scenes by changing the color within a specific range.

Atmosphere Tint

Defines a custom atmospheric perspective color, making things at distance tint towards the specified color.

Atmosphere Range

Defines the range at which the atmospheric tint will start and end. Set these values high to not have the atmosphere range affecting your scene.

If you wish to exclude an object from the atmosphere tint affect (e.g., a background plane), enable the Color Plane attribute in the Flair shader material assigned to that object.

The units work as meter/cm, so keep the World Scale in mind when setting up this attribute.


Watercolor

Pigment Density

The concentration of pigments, giving the render either a diluted or a more saturated and darker look.

Pigment Density between 0.5 and 2.

Paper Granulation

The accumulation of pigments on the valleys of the paper (canvas). Concentrates the pigments on the valleys and creates a more saturated and darker look.

Paper Granulation between -1 and 5.

Edge Darkening

  • Simple - Simple control over edges defined by the colors and depth.
  • Advanced - Advanced control over edges defined by lightness, chromacity and depth. We recommend working with this for better results.

Edge Darkening Intensity

Strength of the edge darkening effect. A higher intensity will concentrate more color on the edges.

Edge Darkening Intensity between 0 and 3.

Edge Darkening Width

Width for the edge darkening effect. Note: A wider edge darkening will require an increase in intensity, as well.

Edge Darkening Width between 0 and 30.

Bleeding Radius

Maximum width for the bleeding effect. Pushing this too far might affect performance.

Bleeding radius between 1 and 40.

Drybrush Threshold

Sharpness of the drybrush application. Using a dry brush will only apply pigments to the peaks of the canvas, leaving the canvas color appear at the valleys of its profile.

Drybrush Threshold between 0 and 20.

Drybrush Color

Color of the drybrush application.

Different drybrush colors.

Max Gaps Overlaps Width

Maximum width of the gaps & overlaps effect.

Gaps and overlaps width between 1 and 5.

Post Processing

Post Processing attributes contain simple but useful self-explanatory post-processing filters

  • Saturation
  • Contrast
  • Brightness

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