<?xml version="1.0" encoding="UTF-8" ?> <class name="CPUParticles3D" inherits="GeometryInstance3D" version="4.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../class.xsd"> <brief_description> CPU-based 3D particle emitter. </brief_description> <description> CPU-based 3D particle node used to create a variety of particle systems and effects. See also [GPUParticles3D], which provides the same functionality with hardware acceleration, but may not run on older devices. </description> <tutorials> </tutorials> <methods> <method name="convert_from_particles"> <return type="void" /> <param index="0" name="particles" type="Node" /> <description> Sets this node's properties to match a given [GPUParticles3D] node with an assigned [ParticlesMaterial]. </description> </method> <method name="get_param_curve" qualifiers="const"> <return type="Curve" /> <param index="0" name="param" type="int" enum="CPUParticles3D.Parameter" /> <description> Returns the [Curve] of the parameter specified by [enum Parameter]. </description> </method> <method name="get_param_max" qualifiers="const"> <return type="float" /> <param index="0" name="param" type="int" enum="CPUParticles3D.Parameter" /> <description> </description> </method> <method name="get_param_min" qualifiers="const"> <return type="float" /> <param index="0" name="param" type="int" enum="CPUParticles3D.Parameter" /> <description> </description> </method> <method name="get_particle_flag" qualifiers="const"> <return type="bool" /> <param index="0" name="particle_flag" type="int" enum="CPUParticles3D.ParticleFlags" /> <description> Returns the enabled state of the given particle flag (see [enum ParticleFlags] for options). </description> </method> <method name="restart"> <return type="void" /> <description> Restarts the particle emitter. </description> </method> <method name="set_param_curve"> <return type="void" /> <param index="0" name="param" type="int" enum="CPUParticles3D.Parameter" /> <param index="1" name="curve" type="Curve" /> <description> Sets the [Curve] of the parameter specified by [enum Parameter]. </description> </method> <method name="set_param_max"> <return type="void" /> <param index="0" name="param" type="int" enum="CPUParticles3D.Parameter" /> <param index="1" name="value" type="float" /> <description> Sets the maximum value for the given parameter </description> </method> <method name="set_param_min"> <return type="void" /> <param index="0" name="param" type="int" enum="CPUParticles3D.Parameter" /> <param index="1" name="value" type="float" /> <description> Sets the minimum value for the given parameter </description> </method> <method name="set_particle_flag"> <return type="void" /> <param index="0" name="particle_flag" type="int" enum="CPUParticles3D.ParticleFlags" /> <param index="1" name="enable" type="bool" /> <description> Enables or disables the given particle flag (see [enum ParticleFlags] for options). </description> </method> </methods> <members> <member name="amount" type="int" setter="set_amount" getter="get_amount" default="8"> Number of particles emitted in one emission cycle. </member> <member name="angle_curve" type="Curve" setter="set_param_curve" getter="get_param_curve"> Each particle's rotation will be animated along this [Curve]. </member> <member name="angle_max" type="float" setter="set_param_max" getter="get_param_max" default="0.0"> Maximum angle. </member> <member name="angle_min" type="float" setter="set_param_min" getter="get_param_min" default="0.0"> Minimum angle. </member> <member name="angular_velocity_curve" type="Curve" setter="set_param_curve" getter="get_param_curve"> Each particle's angular velocity (rotation speed) will vary along this [Curve] over its lifetime. </member> <member name="angular_velocity_max" type="float" setter="set_param_max" getter="get_param_max" default="0.0"> Maximum initial angular velocity (rotation speed) applied to each particle in [i]degrees[/i] per second. </member> <member name="angular_velocity_min" type="float" setter="set_param_min" getter="get_param_min" default="0.0"> Minimum initial angular velocity (rotation speed) applied to each particle in [i]degrees[/i] per second. </member> <member name="anim_offset_curve" type="Curve" setter="set_param_curve" getter="get_param_curve"> Each particle's animation offset will vary along this [Curve]. </member> <member name="anim_offset_max" type="float" setter="set_param_max" getter="get_param_max" default="0.0"> Maximum animation offset. </member> <member name="anim_offset_min" type="float" setter="set_param_min" getter="get_param_min" default="0.0"> Minimum animation offset. </member> <member name="anim_speed_curve" type="Curve" setter="set_param_curve" getter="get_param_curve"> Each particle's animation speed will vary along this [Curve]. </member> <member name="anim_speed_max" type="float" setter="set_param_max" getter="get_param_max" default="0.0"> Maximum particle animation speed. </member> <member name="anim_speed_min" type="float" setter="set_param_min" getter="get_param_min" default="0.0"> Minimum particle animation speed. </member> <member name="color" type="Color" setter="set_color" getter="get_color" default="Color(1, 1, 1, 1)"> Each particle's initial color. To have particle display color in a [BaseMaterial3D] make sure to set [member BaseMaterial3D.vertex_color_use_as_albedo] to [code]true[/code]. </member> <member name="color_initial_ramp" type="Gradient" setter="set_color_initial_ramp" getter="get_color_initial_ramp"> Each particle's initial color will vary along this [GradientTexture1D] (multiplied with [member color]). </member> <member name="color_ramp" type="Gradient" setter="set_color_ramp" getter="get_color_ramp"> Each particle's color will vary along this [GradientTexture1D] over its lifetime (multiplied with [member color]). </member> <member name="damping_curve" type="Curve" setter="set_param_curve" getter="get_param_curve"> Damping will vary along this [Curve]. </member> <member name="damping_max" type="float" setter="set_param_max" getter="get_param_max" default="0.0"> Maximum damping. </member> <member name="damping_min" type="float" setter="set_param_min" getter="get_param_min" default="0.0"> Minimum damping </member> <member name="direction" type="Vector3" setter="set_direction" getter="get_direction" default="Vector3(1, 0, 0)"> Unit vector specifying the particles' emission direction. </member> <member name="draw_order" type="int" setter="set_draw_order" getter="get_draw_order" enum="CPUParticles3D.DrawOrder" default="0"> Particle draw order. Uses [enum DrawOrder] values. </member> <member name="emission_box_extents" type="Vector3" setter="set_emission_box_extents" getter="get_emission_box_extents"> The rectangle's extents if [member emission_shape] is set to [constant EMISSION_SHAPE_BOX]. </member> <member name="emission_colors" type="PackedColorArray" setter="set_emission_colors" getter="get_emission_colors" default="PackedColorArray()"> Sets the [Color]s to modulate particles by when using [constant EMISSION_SHAPE_POINTS] or [constant EMISSION_SHAPE_DIRECTED_POINTS]. </member> <member name="emission_normals" type="PackedVector3Array" setter="set_emission_normals" getter="get_emission_normals"> Sets the direction the particles will be emitted in when using [constant EMISSION_SHAPE_DIRECTED_POINTS]. </member> <member name="emission_points" type="PackedVector3Array" setter="set_emission_points" getter="get_emission_points"> Sets the initial positions to spawn particles when using [constant EMISSION_SHAPE_POINTS] or [constant EMISSION_SHAPE_DIRECTED_POINTS]. </member> <member name="emission_ring_axis" type="Vector3" setter="set_emission_ring_axis" getter="get_emission_ring_axis"> The axis of the ring when using the emitter [constant EMISSION_SHAPE_RING]. </member> <member name="emission_ring_height" type="float" setter="set_emission_ring_height" getter="get_emission_ring_height"> The height of the ring when using the emitter [constant EMISSION_SHAPE_RING]. </member> <member name="emission_ring_inner_radius" type="float" setter="set_emission_ring_inner_radius" getter="get_emission_ring_inner_radius"> The inner radius of the ring when using the emitter [constant EMISSION_SHAPE_RING]. </member> <member name="emission_ring_radius" type="float" setter="set_emission_ring_radius" getter="get_emission_ring_radius"> The radius of the ring when using the emitter [constant EMISSION_SHAPE_RING]. </member> <member name="emission_shape" type="int" setter="set_emission_shape" getter="get_emission_shape" enum="CPUParticles3D.EmissionShape" default="0"> Particles will be emitted inside this region. See [enum EmissionShape] for possible values. </member> <member name="emission_sphere_radius" type="float" setter="set_emission_sphere_radius" getter="get_emission_sphere_radius"> The sphere's radius if [enum EmissionShape] is set to [constant EMISSION_SHAPE_SPHERE]. </member> <member name="emitting" type="bool" setter="set_emitting" getter="is_emitting" default="true"> If [code]true[/code], particles are being emitted. </member> <member name="explosiveness" type="float" setter="set_explosiveness_ratio" getter="get_explosiveness_ratio" default="0.0"> How rapidly particles in an emission cycle are emitted. If greater than [code]0[/code], there will be a gap in emissions before the next cycle begins. </member> <member name="fixed_fps" type="int" setter="set_fixed_fps" getter="get_fixed_fps" default="0"> The particle system's frame rate is fixed to a value. For instance, changing the value to 2 will make the particles render at 2 frames per second. Note this does not slow down the particle system itself. </member> <member name="flatness" type="float" setter="set_flatness" getter="get_flatness" default="0.0"> Amount of [member spread] in Y/Z plane. A value of [code]1[/code] restricts particles to X/Z plane. </member> <member name="fract_delta" type="bool" setter="set_fractional_delta" getter="get_fractional_delta" default="true"> If [code]true[/code], results in fractional delta calculation which has a smoother particles display effect. </member> <member name="gravity" type="Vector3" setter="set_gravity" getter="get_gravity" default="Vector3(0, -9.8, 0)"> Gravity applied to every particle. </member> <member name="hue_variation_curve" type="Curve" setter="set_param_curve" getter="get_param_curve"> Each particle's hue will vary along this [Curve]. </member> <member name="hue_variation_max" type="float" setter="set_param_max" getter="get_param_max" default="0.0"> Maximum hue variation. </member> <member name="hue_variation_min" type="float" setter="set_param_min" getter="get_param_min" default="0.0"> Minimum hue variation. </member> <member name="initial_velocity_max" type="float" setter="set_param_max" getter="get_param_max" default="0.0"> Maximum value of the initial velocity. </member> <member name="initial_velocity_min" type="float" setter="set_param_min" getter="get_param_min" default="0.0"> Minimum value of the initial velocity. </member> <member name="lifetime" type="float" setter="set_lifetime" getter="get_lifetime" default="1.0"> Amount of time each particle will exist. </member> <member name="lifetime_randomness" type="float" setter="set_lifetime_randomness" getter="get_lifetime_randomness" default="0.0"> Particle lifetime randomness ratio. </member> <member name="linear_accel_curve" type="Curve" setter="set_param_curve" getter="get_param_curve"> Each particle's linear acceleration will vary along this [Curve]. </member> <member name="linear_accel_max" type="float" setter="set_param_max" getter="get_param_max" default="0.0"> Maximum linear acceleration. </member> <member name="linear_accel_min" type="float" setter="set_param_min" getter="get_param_min" default="0.0"> Minimum linear acceleration. </member> <member name="local_coords" type="bool" setter="set_use_local_coordinates" getter="get_use_local_coordinates" default="false"> If [code]true[/code], particles use the parent node's coordinate space (known as local coordinates). This will cause particles to move and rotate along the [CPUParticles3D] node (and its parents) when it is moved or rotated. If [code]false[/code], particles use global coordinates; they will not move or rotate along the [CPUParticles3D] node (and its parents) when it is moved or rotated. </member> <member name="mesh" type="Mesh" setter="set_mesh" getter="get_mesh"> The [Mesh] used for each particle. If [code]null[/code], particles will be spheres. </member> <member name="one_shot" type="bool" setter="set_one_shot" getter="get_one_shot" default="false"> If [code]true[/code], only one emission cycle occurs. If set [code]true[/code] during a cycle, emission will stop at the cycle's end. </member> <member name="orbit_velocity_curve" type="Curve" setter="set_param_curve" getter="get_param_curve"> Each particle's orbital velocity will vary along this [Curve]. </member> <member name="orbit_velocity_max" type="float" setter="set_param_max" getter="get_param_max"> Maximum orbit velocity. </member> <member name="orbit_velocity_min" type="float" setter="set_param_min" getter="get_param_min"> Minimum orbit velocity. </member> <member name="particle_flag_align_y" type="bool" setter="set_particle_flag" getter="get_particle_flag" default="false"> Align Y axis of particle with the direction of its velocity. </member> <member name="particle_flag_disable_z" type="bool" setter="set_particle_flag" getter="get_particle_flag" default="false"> If [code]true[/code], particles will not move on the Z axis. </member> <member name="particle_flag_rotate_y" type="bool" setter="set_particle_flag" getter="get_particle_flag" default="false"> If [code]true[/code], particles rotate around Y axis by [member angle_min]. </member> <member name="preprocess" type="float" setter="set_pre_process_time" getter="get_pre_process_time" default="0.0"> Particle system starts as if it had already run for this many seconds. </member> <member name="radial_accel_curve" type="Curve" setter="set_param_curve" getter="get_param_curve"> Each particle's radial acceleration will vary along this [Curve]. </member> <member name="radial_accel_max" type="float" setter="set_param_max" getter="get_param_max" default="0.0"> Maximum radial acceleration. </member> <member name="radial_accel_min" type="float" setter="set_param_min" getter="get_param_min" default="0.0"> Minimum radial acceleration. </member> <member name="randomness" type="float" setter="set_randomness_ratio" getter="get_randomness_ratio" default="0.0"> Emission lifetime randomness ratio. </member> <member name="scale_amount_curve" type="Curve" setter="set_param_curve" getter="get_param_curve"> Each particle's scale will vary along this [Curve]. </member> <member name="scale_amount_max" type="float" setter="set_param_max" getter="get_param_max" default="1.0"> Maximum scale. </member> <member name="scale_amount_min" type="float" setter="set_param_min" getter="get_param_min" default="1.0"> Minimum scale. </member> <member name="scale_curve_x" type="Curve" setter="set_scale_curve_x" getter="get_scale_curve_x"> Curve for the scale over life, along the x axis. </member> <member name="scale_curve_y" type="Curve" setter="set_scale_curve_y" getter="get_scale_curve_y"> Curve for the scale over life, along the y axis. </member> <member name="scale_curve_z" type="Curve" setter="set_scale_curve_z" getter="get_scale_curve_z"> Curve for the scale over life, along the z axis. </member> <member name="speed_scale" type="float" setter="set_speed_scale" getter="get_speed_scale" default="1.0"> Particle system's running speed scaling ratio. A value of [code]0[/code] can be used to pause the particles. </member> <member name="split_scale" type="bool" setter="set_split_scale" getter="get_split_scale" default="false"> If set to true, three different scale curves can be specified, one per scale axis. </member> <member name="spread" type="float" setter="set_spread" getter="get_spread" default="45.0"> Each particle's initial direction range from [code]+spread[/code] to [code]-spread[/code] degrees. Applied to X/Z plane and Y/Z planes. </member> <member name="tangential_accel_curve" type="Curve" setter="set_param_curve" getter="get_param_curve"> Each particle's tangential acceleration will vary along this [Curve]. </member> <member name="tangential_accel_max" type="float" setter="set_param_max" getter="get_param_max" default="0.0"> Maximum tangent acceleration. </member> <member name="tangential_accel_min" type="float" setter="set_param_min" getter="get_param_min" default="0.0"> Minimum tangent acceleration. </member> </members> <constants> <constant name="DRAW_ORDER_INDEX" value="0" enum="DrawOrder"> Particles are drawn in the order emitted. </constant> <constant name="DRAW_ORDER_LIFETIME" value="1" enum="DrawOrder"> Particles are drawn in order of remaining lifetime. </constant> <constant name="DRAW_ORDER_VIEW_DEPTH" value="2" enum="DrawOrder"> Particles are drawn in order of depth. </constant> <constant name="PARAM_INITIAL_LINEAR_VELOCITY" value="0" enum="Parameter"> Use with [method set_param_min], [method set_param_max], and [method set_param_curve] to set initial velocity properties. </constant> <constant name="PARAM_ANGULAR_VELOCITY" value="1" enum="Parameter"> Use with [method set_param_min], [method set_param_max], and [method set_param_curve] to set angular velocity properties. </constant> <constant name="PARAM_ORBIT_VELOCITY" value="2" enum="Parameter"> Use with [method set_param_min], [method set_param_max], and [method set_param_curve] to set orbital velocity properties. </constant> <constant name="PARAM_LINEAR_ACCEL" value="3" enum="Parameter"> Use with [method set_param_min], [method set_param_max], and [method set_param_curve] to set linear acceleration properties. </constant> <constant name="PARAM_RADIAL_ACCEL" value="4" enum="Parameter"> Use with [method set_param_min], [method set_param_max], and [method set_param_curve] to set radial acceleration properties. </constant> <constant name="PARAM_TANGENTIAL_ACCEL" value="5" enum="Parameter"> Use with [method set_param_min], [method set_param_max], and [method set_param_curve] to set tangential acceleration properties. </constant> <constant name="PARAM_DAMPING" value="6" enum="Parameter"> Use with [method set_param_min], [method set_param_max], and [method set_param_curve] to set damping properties. </constant> <constant name="PARAM_ANGLE" value="7" enum="Parameter"> Use with [method set_param_min], [method set_param_max], and [method set_param_curve] to set angle properties. </constant> <constant name="PARAM_SCALE" value="8" enum="Parameter"> Use with [method set_param_min], [method set_param_max], and [method set_param_curve] to set scale properties. </constant> <constant name="PARAM_HUE_VARIATION" value="9" enum="Parameter"> Use with [method set_param_min], [method set_param_max], and [method set_param_curve] to set hue variation properties. </constant> <constant name="PARAM_ANIM_SPEED" value="10" enum="Parameter"> Use with [method set_param_min], [method set_param_max], and [method set_param_curve] to set animation speed properties. </constant> <constant name="PARAM_ANIM_OFFSET" value="11" enum="Parameter"> Use with [method set_param_min], [method set_param_max], and [method set_param_curve] to set animation offset properties. </constant> <constant name="PARAM_MAX" value="12" enum="Parameter"> Represents the size of the [enum Parameter] enum. </constant> <constant name="PARTICLE_FLAG_ALIGN_Y_TO_VELOCITY" value="0" enum="ParticleFlags"> Use with [method set_particle_flag] to set [member particle_flag_align_y]. </constant> <constant name="PARTICLE_FLAG_ROTATE_Y" value="1" enum="ParticleFlags"> Use with [method set_particle_flag] to set [member particle_flag_rotate_y]. </constant> <constant name="PARTICLE_FLAG_DISABLE_Z" value="2" enum="ParticleFlags"> Use with [method set_particle_flag] to set [member particle_flag_disable_z]. </constant> <constant name="PARTICLE_FLAG_MAX" value="3" enum="ParticleFlags"> Represents the size of the [enum ParticleFlags] enum. </constant> <constant name="EMISSION_SHAPE_POINT" value="0" enum="EmissionShape"> All particles will be emitted from a single point. </constant> <constant name="EMISSION_SHAPE_SPHERE" value="1" enum="EmissionShape"> Particles will be emitted in the volume of a sphere. </constant> <constant name="EMISSION_SHAPE_SPHERE_SURFACE" value="2" enum="EmissionShape"> Particles will be emitted on the surface of a sphere. </constant> <constant name="EMISSION_SHAPE_BOX" value="3" enum="EmissionShape"> Particles will be emitted in the volume of a box. </constant> <constant name="EMISSION_SHAPE_POINTS" value="4" enum="EmissionShape"> Particles will be emitted at a position chosen randomly among [member emission_points]. Particle color will be modulated by [member emission_colors]. </constant> <constant name="EMISSION_SHAPE_DIRECTED_POINTS" value="5" enum="EmissionShape"> Particles will be emitted at a position chosen randomly among [member emission_points]. Particle velocity and rotation will be set based on [member emission_normals]. Particle color will be modulated by [member emission_colors]. </constant> <constant name="EMISSION_SHAPE_RING" value="6" enum="EmissionShape"> Particles will be emitted in a ring or cylinder. </constant> <constant name="EMISSION_SHAPE_MAX" value="7" enum="EmissionShape"> Represents the size of the [enum EmissionShape] enum. </constant> </constants> </class>