Particle renderers add particles to the visible scene graph according to the information stored in the particle objects and the type of renderer. All particle renderers have the following parameters:
| Variable | Definition | Values |
| alphaMode | Alpha setting over particle lifetime | PR_ALPHA_NONE, PR_ALPHA_OUT, PR_ALPHA_IN, PR_ALPHA_USER |
| userAlpha | Alpha value for ALPHA_USER alpha mode | Boolean |
The following list contains the different types of renderers and their unique parameters.
PointParticleRenderer
Renders particles as pixel points.
| Variable | Definition | Values |
| pointSize | Width and height of points, in pixels | [0, infinity) |
| startColor | Starting color | (r, g, b, a) |
| endColor | Ending color | (r, g, b, a) |
| blendType | How the particles blend from the start color to the end color | ONE_COLOR, BLEND_LIFE, BLEND_VEL |
| blendMethod | Interpolation method between colors | LINEAR, CUBIC |
ONE_COLOR: point is always the starting color.
BLEND_LIFE: color is interpolated from start to end according to the age of the point
BLEND_VEL: color is interpolated between start to end according to the velocity/terminal velocity.
LineParticleRenderer
Renders particles as lines between their current position and their last position.
| Variable | Definition | Values |
| headColor | Color of leading end | (r, g, b, a) |
| tailColor | Color of trailing end | (r, g, b, a) |
SparkleParticleRenderer
Renders particles star or sparkle objects, three equal-length perpendicular axial lines, much like jacks. Sparkle particles appear to sparkle when viewed as being smaller than a pixel.
| Variable | Definition | Values |
| centerColor | Color of center | (r, g, b, a) |
| edgeColor | Color of edge | (r, g, b, a) |
| birthRadius | Initial sparkle radius | [0, infinity) |
| deathRadius | Final sparkle radius | [0, infinity) |
| lifeScale | Whether or not sparkle is always of radius birthRadius | NO_SCALE, SCALE |
SpriteParticleRenderer
Renders particles as an image, using a Panda3D texture object. The image is always facing the user.
| Variable | Definition | Values |
| texture | Panda texture object to use as the sprite image | (r, g, b, a) |
| color | Color | (r, g, b, a) |
| xScaleFlag | If true, x scale is interpolated over particle’s life | Boolean |
| yScaleFlag | If true, y scale is interpolated over particle’s life | Boolean |
| animAngleFlag | If true, particles are set to spin on the Z axis | Boolean |
| initial_X_Scale | Initial x scaling factor | [0, infinity) |
| final_X_Scale | Final x scaling factor | [0, infinity) |
| initial_Y_Scale | Initial y scaling factor | [0, infinity) |
| final_Y_Scale | Final y scaling factor | [0, infinity) |
| nonAnimatedTheta | If false, sets the counterclockwise Z rotation of all sprites, in degrees | Boolean |
| alphaBlendMethod | Sets the interpolation blend method | LINEAR, CUBIC |
| alphaDisable | If true, alpha blending is disabled | Boolean |
GeomParticleRenderer
Renders particles as full 3D objects. This requires a geometry node.
| Variable | Definition | Values |
| geomNode | A geometry scene graph node | <Node> |
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