variables_explanation

PT Point number.

NPT Total number of points.

CEX, CEY, CEZ Centroid of the input geometry.

TX, TY, TZ Point position.

WEIGHT Point spline weight.

BBX, BBY, BBZ Position of point within bounding box, ranges [0-1].

NX, NY, NZ Point normal directions.

MAPU, MAPV, MAPW Point texture coordinates.

CR, CG, CB Diffuse point color.

CA Point alpha value.

MASS, DRAG Point mass and drag.

TENSION, SPRINGK Spring tension of an edge,and elasticity of a point.

AGE Number of seconds a particle has been alive.

LIFE Particle age divided by life expectancy (0 to 1).

DIST Distance to intersection from the Ray operation.

VX, VY, VZ Point velocity values.

UPX, UPY, UPZ Point up vector values.

ID Particle ID.

PSCALE Particle Scale

PTn, NPTn Append n for the second source.

$PT 点的号码

$NPT 点的总数

$CEX 几何体的质心

$TX 点的X轴的位置

$WEIGHT 点的权重

$BBX 点在边界盒中的位置 （0到1）

$NX 点法线的方向$MAPU 点纹理坐标

$CR 点R通道的颜色

$CA 点A通道的值

$MASS DRAG 点的质量和拖拽

$TENSION PEINGK 点的张力和弹力

$AGE 点粒子成活的时间

$LIFE 点粒子的age/life

$DIST 点的距离

$VX 点X轴的速度

$UPX 点向上的速度

$ID 点粒子的ID

$PSCALE 点粒子的缩放

$PTN 点第二个来源