When turned on, stiffness adds a certain resistance to the solver’s attempts to move joints from their current orientation to the “target” (animated or simulated) orientation.

A named transform group specifying the joints that should become stiff. You can create joint groups in the agent setup network with the Agent Transform Group SOP.

When set to Constant, the stiffness is the same for the duration of the state. When set to Ramp, you can change the stiffness on a ramp based on how long the agent has been in this state.

When Stiffness Value is set to Constant, this specifies how much to resist changes to the current joint rotations. A value between 0.2 (the default) and 0.5 read as “stiff but not too stiff”. Values of 1 or more will be very stiff.

When Stiffness Value is set to Ramp, this is the start and end times (in seconds) corresponding to the start and end of the ramp. For example, if you set Time Range to 0.0 and 5.0, the ramp lets you control the stiffness over the first 5 seconds the agent is in this state. Outside this range, the ramp extends the first and last values.

When Stiffness Value is set to Ramp, this is a scale on the value of the Stiffness Ramp.

When Stiffness Value is set to Ramp, this sets the stiffness at each point in the Time Range. Outside this range, the ramp extends the first and last values.

Increasing this value makes the motor component of the constraint softer. A small positive value can increase the stability of the simulation.

When turned on, makes some joints on the agent become simulated (ragdoll), while others parts of the agent follow an animation clip. For example, you can have the lower body animated by a walking clip, but the upper body can be a ragdoll and react to hits from simulated objects.

A named transform group specifying the joints you want to be simulated (ragdoll). Joints that are not in this group will follow the animation clip specified in Clip Name. You can create joint groups in the agent setup network with the Agent Transform Group SOP.

When turned on, spends a certain amount of effort to make joints follow the animation clip. However, the joints are still simulated, and simulated forces can modify or overcome the motor effect.

A named transform group specifying the joints that should be (partially) animated by the clip. You can create joint groups in the agent setup network with the Agent Transform Group SOP.

When set to Constant, the motor strength is the same for the duration of the state. When set to Ramp, you can change the motor strength on a ramp based on how long the agent has been in this state.

When Strength Value is set to Constant, this is the amount of effort to make the joints follow the clip. The default value of 10 is enough to overcome gravity, but still allow collisions to overcome the motor. You can play with increasing or decreasing this value to get the effect you want.

When Strength Value is set to Ramp, this is the start and end times (in seconds) corresponding to the start and end of the ramp. For example, if you set Time Range to 0.0 and 5.0, the ramp lets you control the motor strength over the first 5 seconds the agent is in this state. Outside this range, the ramp extends the first and last values.

When Strength Value is set to Ramp, this is a scale on the value of the Strength Ramp.

When Strength Value is set to Ramp, this sets the motor strength at each point in the Time Range. Outside this range, the ramp extends the first and last values.

The length of time (in seconds) it takes the solver to correct deviations from the target joint rotations (such as after a collision). Lower values make the agent “recover” from impacts quickly, while higher values make impacts affect the agent for longer.

Increasing this value makes the motor component of the constraint softer. A small positive value can increase the stability of the simulation.

A named transform group specifying the joints that the sticky collision settings should apply to. You can create joint groups in the agent setup network with the Agent Transform Group SOP.

The minimum impulse from a collision that will cause this object to stick to another object. This value must be greater or equal to 0 for the objects to stick.

The maximum number of other objects that this object can be stuck to. A value less than or equal to 0 allows this object to be stuck to any number of other objects.

The maximum number of anchor points (constraints) that can be used to stick this object to another object.

Sticky collisions will not occur when colliding with any objects that match this pattern. The pattern uses the same syntax as the collisionignore attribute.

Specifies whether a particular clip or random distribution of clips should be assigned to the agent when it enters this state. The clip assignment can occur at the beginning of the simulation (if Set Initial Clip Name is turned on), or when a transition to a new state occurs. If no clips are assigned, the agent’s current clip is preserved when entering this state.

The clip can also be explicitly changed using the Output Clip parameter on the Crowd Transition DOP.

When Clip Assignment is set to Single Clip, this is the name of the animation clip to play in the current state.

When Clip Assignment is set to Random Distribution, this seed is used when randomly selecting clips.

When Clip Assignment is set to Random Distribution, this is the number of groups of clips in the custom distribution.

When Clip Assignment is set to Random Distribution, this is a string pattern that specifies one or more clip names. The pattern follows the same syntax as the match VEX function. The Weight value for the group is divided evenly between the matching clips.

When Clip Assignment is set to Random Distribution, this specifies how likely the clips are to be selected.

When turned on, overrides the agent’s initial clip using the Clip Assignment parameter.

When turned on, sets the initial clip time (in seconds) for all agents in this state.

When Initial Clip Time is turned on, this randomly shifts the initial clip time forward for each agent by up to the specified number of seconds.

When Random Clip Offset is turned on, this seed is used when randomly varying clip times.

When the Clip Playback Type is set to Locomotive, this specifies whether the agent should be rotated according to the clip’s locomotion data when Set Initial Clip Time is turned on.

The type of animation used for the state.

A multiplier for how fast the animation clip is played back.

When Type is set to Locomotive, this is a multiplier for how fast the locomotion channel of the animation clip is played back.

The percentage that the Clip Speed Multiplier can be randomly increased or decreased by. For example, if the Clip Speed Multiplier is 0.7 and the Variance is 10%, the agents' clip speed multipliers will be random values between 0.63 and 0.77.

When Variance is turned on, this seed is used when randomly varying clip speeds.

This parameter is available when Type is set to Locomotive. For locomotive clips that are designed for looping, a common workflow is to have an extra frame at the end of the clip that matches the first frame’s pose. The final frame of the clip is used by the crowd solver to determine the correct locomotive motion when moving from the final pose back to the initial pose. The final frame is skipped when advancing the clip time to avoid having the same pose for two consecutive frames or having the agent suddenly jump backwards.

When turned on, the clip playback continues looping after reaching the end of the clip’s loop range. This can be overridden per clip using the clip properties.

When RBD Ragdoll is set to Animated Static or Ignore, and Type is set to In-Place, turning this on adjusts the clip’s playback speed based on the Gait Speed and the particle’s velocity.

Specifies how fast the agent is moving in the in-place animation.

This parameter is available when RBD Ragdoll is set to Animated Static or Ignore, Type is set to In-Place, and Retime Clip to Match Particle Speed is turned on.

Specifies how much the clip is allowed to be retimed by.

This parameter is available when RBD Ragdoll is set to Animated Static or Ignore, Type is set to In-Place, and Retime Clip to Match Particle Speed is turned on.

When turned on, forces the particle speed to fall within the range specified by Gait Speed and Allowed Variance.

This parameter is available when RBD Ragdoll is set to Animated Static or Ignore, Type is set to In-Place, and Retime Clip to Match Particle Speed is turned on.

When turned on, uses a local expression to override the Clip Speed Multiplier and Variance for each agent. Select Pass Through from the drop-down menu on the right to see the variables that you can modify.