Geometric Dissolve

Geometric Dissolve is an advanced feature that expands beyond a typical Dissolve in the main shader. It uses the 3D Mesh to manipulate the vertices, creating an advanced 3D dissolve animation.

To use Geometric Dissolve, select the shader version .poiyomi/Poiyomi Pro Geometric Dissolve. This exposes the Geometric Dissolve category with the following settings shown below.

Pro Only

This Feature is only available in Poiyomi Pro! Subscribe to the Patreon at the $10 tier or higher to access it.

warning

Geometric Dissolve can have a performance impact depending on the Mesh it is being used on, especially if using Pyramid (Slower) Shape Type. Use this feature wisely!

Shape Type

• Type: Dropdown, Options: Pyramid (Slower)/Triangle (Fast)

Choice of Geometric Dissolve style to use.

Shape Type Options

Pyramid (Slower)

Default mode. Triangles actively being 'dissolved' will have additional geometry generated in order to give depth and volume to the effect.

Triangle (Faster)

Triangles actively being 'dissolved' will remain simple triangles and have no additional geometry generated.

Gradient Type

• Type: Dropdown, Options: Texture/Point 2 Point/Noise

Determines how the intensity of the effect will be driven by.

Texture Options

Texture

UV

• Type: Dropdown, Options: UV0/UV1/UV2/UV3/World Pos/Local Pos

Which UV the Geometric Dissolve effect will be projected onto.

Gradient

• Type: Data Texture (sRGB = OFF)

Gradient Texture to use for the Geometric Dissolve Gradient.

Mask

• Type: Data Texture (sRGB = OFF)

Mask Texture to isolate the Geometric Dissolve to only affect a specific area.

Dissolve Alpha

• Type: Float, Range: -1.0 - 1.0

Defines the main state of the Geometric Dissolve effect.

Expansion Time

• Type: Float, Range: 0.001 - 1.0

Defines the delay of time between the main states of the Geometric Dissolve effect.

Point 2 Point Options

Point 2 Point

Mask

• Type: Data Texture (sRGB = OFF)

Mask Texture to isolate the Geometric Dissolve to only affect a specific area.

Dissolve Alpha

• Type: Float, Range: -1.0 - 1.0

Defines the main state of the Geometric Dissolve effect.

Expansion Time

• Type: Float, Range: 0.001 - 1.0

Defines the delay of time between the main states of the Geometric Dissolve effect.

Vertex Color Position

• Type: Boolean

If enabled, will use the Vertex Colors of your Mesh to define the positions for the Geometric Dissolve.

Start Point

• Type: Vector3

Defines the starting position of the Gradient in XYZ coordinates.

End Point

• Type: Vector3

Defines the ending position of the Gradient in XYZ coordinates.

Visualize

• Type: Boolean

Changes the Geometric Dissolve effect to show a visualization of the effect, ignoring other shader effects rendered on top.

Noise Options

Noise

UV

• Type: Dropdown, Options: UV0/UV1/UV2/UV3/World Pos/Local Pos

Which UV the Geometric Dissolve effect will be projected onto.

Mask

• Type: Data Texture (sRGB = OFF)

Mask Texture to isolate the Geometric Dissolve to only affect a specific area.

Dissolve Alpha

• Type: Float, Range: -1.0 - 1.0

Defines the main state of the Geometric Dissolve effect.

Noise Threshold

• Type: Float, Range: 0.0 - 1.0

Defines the threshold to use on the Geometric Dissolve effect, such as a delay to where each piece of the Mesh will start dissolving from.

Expansion Time

• Type: Float, Range: 0.001 - 1.0

Defines the delay of time between the main states of the Geometric Dissolve effect.

Noise Density

• Type: Float2

Density of the noise used to drive dissolve intensity. Smaller values appear smoother, larger values provide more detail.

Noise Speed

• Type: Float

Determines how quickly the noise algorithm progresses through time. Larger values are faster.

This setting creates an animated Geometric Dissolve when in-between Dissolve Alpha values.

Motion & Size

Travel Distance

• Type: Float

Determines the maximum distance a triangle being "dissolved" may travel.

Scale Range

• Type: Float4

Defines the minimum and maximum scales and range of the Geometric Dissolve shapes.

Scale	Function
MinS	Minimum Scale
MaxS	Maximum Scale
MinR	Minimum Range
MaxR	Maximum Range

Height Range

• Type: Float4

Defines the minimum and maximum height and range of the Geometric Dissolve shapes.

Scale	Function
MinH	Minimum Height
MaxH	Maximum Height
MinR	Minimum Range
MaxR	Maximum Range

Min Rotation

• Type: Float3

Defines the minimum amount of rotations per cycle.

Max Rotation

• Type: Float3

Defines the maximum amount of rotations per cycle.

Color & Emission

Color Tex

• Type: Color Texture (sRGB = ON)

Color Texture to blend with the Geometric Dissolve shapes.

Blending

• Type: Dropdown, Options: Replace/Darken/Multiply/Lighten/Screen/Subtract/Add/Overlay/Mixed

Choice of blending mode to use for the Color Texture.

Color

• Type: Color

Color to blend with the Geometric Dissolve shapes.

Color Range

• Type: Float2

Defines the range of Color to blend with the Geometric Dissolve shapes.

• Min determines at what dissolve strength the material's base color will be fully shown.
• Max determines at what dissolve strength the texture/color specified in this section will be fully shown.
  Values between Min and Max will fade smoothly. Min may be larger than Max.

Emission Range

• Type: Float2

Defines the range of Emission to blend with the Geometric Dissolve shapes.

• Min determines at what dissolve strength this section will stop producing emissions.
• Max determines at what dissolve strength this section will produce the specified emission amount.
  Values between Min and Max will fade smoothly. Min may be larger than Max.

Wireframe

• Type: Boolean

Enables the wireframe to show during the Geometric Dissolve.

Thickness

• Type: Float, Range: 0.0 - 1.0

Thickness of the wireframe lines.

Softness

• Type: Float, Range: 0.0 - 1.0

How soft the wireframe is drawn on the Geometric Dissolve.

Time Offset

• Type: Float

Timing offset for the Geometric Dissolve's wireframe during the animation.

Extend Base Color

• Type: Boolean

Extends the wireframe to the Base Color.

Extend Emission

• Type: Boolean

Extends the wireframe to the Emission.

Wireframe Only

• Type: Boolean

Shows only the Wireframe.

UV Tile Geo Dissolve

• Type: Boolean

Allows an alternative way to use UV Tile Discard with the use of Geometric Dissolve's advanced effects instead.

Refer to UV Tile Documentation

All the sliders listed for each Row will reflect the same locations as described in UV Tile Discard. Please refer to the documentation page to see what they are.

Each Slider will control the Dissolve Alpha for the described Row and Column.

UV Tile UV

• Type: Dropdown, Options: UV0/UV1/UV2/UV3

Choice of which UV to use for the Tile Dissolve.

Row X Column Y

• Type: Float, Range: -1.0 - 1.0

This property will appear for each Row and Column for UV Tile Dissolve. Below is a table reference matching the same positions as described in UV Tile Discard, named to each field shown in UV Tile Dissolve.

	Column 0	Column 1	Column 2	Column 3
Row 3	Row 3, Column 0	Row 3, Column 1	Row 3, Column 2	Row 3, Column 3
Row 2	Row 2, Column 0	Row 2, Column 1	Row 2, Column 2	Row 2, Column 3
Row 1	Row 1, Column 0	Row 1, Column 1	Row 1, Column 2	Row 1, Column 3
Row 0	Row 0, Column 0	Row 0, Column 1	Row 0, Column 2	Row 0, Column 3