From TDN

Emitter Rollout

Description

Torque X Builder includes a very powerful and very flexible particle effects editor. It can be used to create amazing commercial-quality visual effects, such as explosions, smoke, sparkles, etc.

Usage

To add a particle effect to your scene, drag a New Particle Effect from the Create pane into the viewport. The default particle effect already has a single emitter attached, but it doesn't have a material associated with it. You can select a material by clicking on the rollout labeled Emitter - UntitledEmitter and then selecting a material from the Material dropdown list. You can add additional emitters to this effect by typing an emitter name in the Create Emitter field and then clicking the green add button

Type: Tells an emitter where to create the individual particles. When set to Point, particles will emit from the center of the particle effect object. When set to LineX, particles emit from a horizontal line through the center of the effect object. Similarly, when set to LineY, particles will emit from a vertical line. And when Type is set to Area, particles are emitted from the entire area of the effect object.

Orientation: Defines the angle particles are emitted at. When set to Aligned, particles are emitted at the same angle that the emitter is rotated to. When set to Fixed, particles are emitted at a constant angle, no matter the emitter's rotation. The constant angle is set in the Fixed Angle property. And when set to Random, particles emit at random angles.

Pivot: Defines the local point on the particles to rotate around. The X and Y values range between 0 and 1.

Fixed Aspect: When checked, any changes to width of a particle will also change height of the particle. If turned off, then the X and Y dimensions must be sized separately.

Fixed Area Aspect: When checked, the Area emitters will use the X dimension of the emitter to determine both horizontal and vertical size. When unchecked, the horizontal and vertical emitter size can be changed separately.

Single Particle: When checked, the emitter will release only one single particle. This is useful for several effects, as well as testing certain properties.

Attach Position: When checked, individual particles will follow the emitter as it moves. Otherwise, particles will function as dictated by the emitter graphs.

Attach Rotation: When checked, individual particles will rotate with the emitter. Otherwise, they will function as dictated by the emitter graphs.

Rotate Emission: When checked, the emitter is aligned with the effect object. This can be used to create jet trails and similar effects.

First in Front: When checked, the oldest particles will be rendered on top of the newer ones, Otherwise, new particles are rendered on top.