Define properties like friction, stickiness or roughness.
Friction
A value of 0.0 creates absolutely no friction and a perfectly even surface. Higher values can even stop particles from moving. This parameter accepts all positive values between 0.0 and 1.0.
"Friction"Friction", "Bounce", "Sticky", "Roughness", and "Collider Velocity Factor" can be controlled through → textures.
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A value of 0.0 creates perfect elasticity, while higher settings make the particles lose appropriate amounts of their energy. The maximum value is 1.0.
"Bounce" can be controlled through → textures.
Sticky
It can be seen as a “glue factor” to make particles stick on the object’s surface. You can use positive (attraction) and negative (repulsion) settings.
"Sticky" can be controlled through → textures.
Roughness
This value ranges between 0.0 and 1.0 and adds randomness to the object’s polygon normals to produce a slightly different collision direction.
"Roughness" can be controlled through → textures.
Collider Velocity Factor
This parameter is only relevant in conjunction with moving objects. "Collider Velocity Factor"
- accepts any positive value including 0
- is mainly used if the collision between particles and objects turns out too weak.
Interaction > Distance
With 10, for example, particles within a distance of 10 units (depends on the actual scene scale) from the object's surface will be affected by parameters like "Friction", Bounce", etc. The value is calculated automatically based on "Collision Distance". For manual control uncheck "Auto Interaction Distance"The mode of operation is the same for all parameters:
- Click on the "Texture" parameter button to create a new map or drag an existing one to it.
- "Min" describes the minimum parameter value indicated by the darkest colour.
- "Max" describes the maximum parameter value indicated by the brightest colour.
- The original value is simply overriden.