# Chameleon Paint w. Transparent Flakes

Has the same three layers (base coat, flakes, and a clear top coat), where the flakes are transparent and coated with a thinfilm.

This shader was designed to simulate pearlescent mica flakes, which are commonly found in car-paint and makeup. These where historically made up of crushed up nacre (Mother of Pearl). Since the flakes are transparent, light can refract through dozens to hundreds of thinfilm layers. This results in brighter reflections, in comparison to the opaque version, and creates interesting effects when the base coat color is changed.

<img src="../../_static/media/c_trans_flakes.png" alt="my alt text" width="50%"/>

## Inputs

### Base Coat

#### Color
Specifies the base color of the paint.
<figure>
  <img src="../../_static/media/paint/base_coat/color/strip.png" alt="my alt text"/>
  <figcaption text-align="center">Variation of base colors</figcaption>
</figure>

#### Metallic
Controls the metallic appearance of the base paint coat.
<figure>
  <img src="../../_static/media/paint/base_coat/metal/strip.png" alt="my alt text"/>
  <figcaption text-align="center">Metallic from 0.0 to 1.0</figcaption>
</figure>

#### Specular Tint
Adjusts the tint of the specular highlights.
<figure>
  <img src="../../_static/media/paint/base_coat/spec_tint/strip.png" alt="my alt text"/>
  <figcaption text-align="center">From white to orange</figcaption>
</figure>

#### Roughness
Controls the roughness of the base paint coat.
<figure>
  <img src="../../_static/media/paint/base_coat/roughness/strip.png" alt="my alt text"/>
  <figcaption text-align="center">Roughness from 0.0 to 1.0</figcaption>
</figure>

### Flakes Coat

#### Scale
Adjusts the size of the flakes.
<figure>
  <img src="../../_static/media/paint/flake/trans_scale/strip.png" alt="my alt text"/>
  <figcaption text-align="center">Scale from 250.0 to 5000.0</figcaption>
</figure>

#### Density
Controls the density of the flakes.
<figure>
  <img src="../../_static/media/paint/flake/trans_density/strip.png" alt="my alt text"/>
  <figcaption text-align="center">Density from 0.0 to 1.0</figcaption>
</figure>

#### Variation
This parameter determines the extent to which flake orientation deviates from the surface normal. A value of 0.0 means minimal deviation, aligning flakes closely with the surface. Higher values intensify the flake effect, making it more pronounced.
<figure>
  <img src="../../_static/media/paint/flake/trans_var/strip.png" alt="my alt text"/>
  <figcaption text-align="center">Variation from 0.0 to 0.3</figcaption>
</figure>

#### Roughness
Specifies the roughness of the flakes.
<figure>
  <img src="../../_static/media/paint/flake/trans_roughness/strip.png" alt="my alt text"/>
  <figcaption text-align="center">Roughness from 0.0 to 1.0</figcaption>
</figure>

#### Absorption
Specifies the degree of light absorbed by the pigment before it is reflected off the flakes.
<figure>
  <img src="../../_static/media/paint/flake/trans_absorption/strip.png" alt="my alt text"/>
  <figcaption text-align="center">Absorption from 1.0 to 5.0, with a red base coat</figcaption>
</figure>

#### Weight
This multiplier scales the reflection intensity received by the flakes.
<figure>
  <img src="../../_static/media/paint/flake/trans_weight/strip.png" alt="my alt text"/>
  <figcaption text-align="center">Weight from 0.0 to 1.0</figcaption>
</figure>

### Flakes Film

#### IOR and Thickness

<div class="video_container">
    <figure>
        <video width="100%" height="auto" controls loop>
            <source src="../../_static/media/paint/flake/trans_ior/vid.mp4" type="video/mp4">
        </video>
        <figcaption text-align="center">Film IOR from 1.0 to 3.0</figcaption>
    </figure>
    <figure>
        <video width="100%" height="auto" controls loop>
            <source src="../../_static/media/paint/flake/trans_thickness/vid.mp4" type="video/mp4">
        </video>
        <figcaption text-align="center">Film thickness from 0.0nm to 800.0nm</figcaption>
    </figure>
</div>

#### Variance
Controls the variance of the flake film thickness. Lower values are dull and desaturated, higher values are bright and saturated. 
<figure>
  <img src="../../_static/media/paint/flake/trans_film_var/strip.png" alt="my alt text"/>
  <figcaption text-align="center">Variance from 0.0 to 50.0</figcaption>
</figure>

### Clear Coat

#### Color
Specifies the color of the clear coat layer.
<figure>
  <img src="../../_static/media/paint/clear_coat/color/strip.png" alt="my alt text"/>
  <figcaption text-align="center">Color from black to white</figcaption>
</figure>

#### Roughness
Controls the roughness of the clear coat layer.
<figure>
  <img src="../../_static/media/paint/clear_coat/roughness/strip.png" alt="my alt text"/>
  <figcaption text-align="center">Roughness from 0.0 to 1.0</figcaption>
</figure>

## Outputs

### Shader
Standard shader output.