docs.unity3d.com
Search Results for

    Show / Hide Table of Contents

    Velocity from Direction & Speed (New Direction)

    Menu Path : Velocity > [Set/Add] Velocity from Direction & Speed (New Direction)

    The Velocity from Direction And Speed (New Direction) Block calculates a velocity for the particle based on a blend ratio between a given direction, and the direction attribute.

    The Block then scales the final direction vector by a speed, and composes it with the velocity attribute.

    Block compatibility

    This Block is compatible with the following Contexts:

    • Initialize
    • Update

    Block settings

    Setting Type Description
    Composition Enum (Inspector) Specifies how this Block composes the velocity attribute. The options are:
    • Set: Overwrites the velocity attribute with the new value.
    • Add: Adds the new value to the velocity attribute value.
    • Multiply: Multiplies the velocity attribute value by the new value.
    • Blend: Interpolates between the velocity attribute value and the new value. You can specify the blend factor between 0 and 1.
    Speed Mode Enum Specifies how to calculate the speed. The options are:
    • Constant: Applies a constant speed which you set in the Speed property.
    • Random: Applies a random speed between Min Speed and Max Speed.

    Block properties

    Input Type Description
    Direction Direction The specific direction vector this Block blends with the current direction attribute, based on the Blend Direction property.
    Speed float The speed multiplier to apply to the direction vector in order to calculate the velocity.
    This property only appears if you set Speed Mode to Constant.
    Min Speed float The minimum speed multiplier to apply to the direction vector in order to calculate the velocity.
    This property only appears if you set Speed Mode to Random.
    Max Speed float The maximum speed multiplier to apply to the direction vector in order to calculate the velocity.
    This property only appears if you set Speed Mode to Random.
    Blend Direction float The blend percentage between the current direction attribute value and the newly calculated direction value.
    Blend Velocity float The blend percentage between the current direction attribute value and the newly calculated direction value.
    This property only appears if you set Composition to Blend.
    In This Article
    Back to top
    Copyright © 2024 Unity Technologies — Trademarks and terms of use
    • Legal
    • Privacy Policy
    • Cookie Policy
    • Do Not Sell or Share My Personal Information
    • Your Privacy Choices (Cookie Settings)