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<?xml version="1.0" encoding="UTF-8" ?>
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<class name= "ParticleProcessMaterial" inherits= "Material" xmlns:xsi= "http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation= "../class.xsd" >
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<brief_description >
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Holds a particle configuration for [GPUParticles2D] or [GPUParticles3D] nodes.
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</brief_description>
<description >
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[ParticleProcessMaterial] defines particle properties and behavior. It is used in the [code]process_material[/code] of the [GPUParticles2D] and [GPUParticles3D] nodes. Some of this material's properties are applied to each particle when emitted, while others can have a [CurveTexture] or a [GradientTexture1D] applied to vary numerical or color values over the lifetime of the particle.
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</description>
<tutorials >
</tutorials>
<methods >
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<method name= "get_param" qualifiers= "const" >
<return type= "Vector2" />
<param index= "0" name= "param" type= "int" enum= "ParticleProcessMaterial.Parameter" />
<description >
Returns the minimum and maximum values of the given [param param] as a vector.
The [code]x[/code] component of the returned vector corresponds to minimum and the [code]y[/code] component corresponds to maximum.
</description>
</method>
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<method name= "get_param_max" qualifiers= "const" >
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<return type= "float" />
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<param index= "0" name= "param" type= "int" enum= "ParticleProcessMaterial.Parameter" />
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<description >
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Returns the maximum value range for the given parameter.
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</description>
</method>
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<method name= "get_param_min" qualifiers= "const" >
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<return type= "float" />
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<param index= "0" name= "param" type= "int" enum= "ParticleProcessMaterial.Parameter" />
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<description >
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Returns the minimum value range for the given parameter.
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</description>
</method>
<method name= "get_param_texture" qualifiers= "const" >
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<return type= "Texture2D" />
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<param index= "0" name= "param" type= "int" enum= "ParticleProcessMaterial.Parameter" />
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<description >
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Returns the [Texture2D] used by the specified parameter.
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</description>
</method>
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<method name= "get_particle_flag" qualifiers= "const" >
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<return type= "bool" />
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<param index= "0" name= "particle_flag" type= "int" enum= "ParticleProcessMaterial.ParticleFlags" />
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<description >
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Returns [code]true[/code] if the specified particle flag is enabled. See [enum ParticleFlags] for options.
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</description>
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</method>
<method name= "set_param" >
<return type= "void" />
<param index= "0" name= "param" type= "int" enum= "ParticleProcessMaterial.Parameter" />
<param index= "1" name= "value" type= "Vector2" />
<description >
Sets the minimum and maximum values of the given [param param].
The [code]x[/code] component of the argument vector corresponds to minimum and the [code]y[/code] component corresponds to maximum.
</description>
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</method>
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<method name= "set_param_max" >
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<return type= "void" />
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<param index= "0" name= "param" type= "int" enum= "ParticleProcessMaterial.Parameter" />
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<param index= "1" name= "value" type= "float" />
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<description >
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Sets the maximum value range for the given parameter.
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</description>
</method>
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<method name= "set_param_min" >
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<return type= "void" />
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<param index= "0" name= "param" type= "int" enum= "ParticleProcessMaterial.Parameter" />
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<param index= "1" name= "value" type= "float" />
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<description >
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Sets the minimum value range for the given parameter.
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</description>
</method>
<method name= "set_param_texture" >
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<return type= "void" />
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<param index= "0" name= "param" type= "int" enum= "ParticleProcessMaterial.Parameter" />
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<param index= "1" name= "texture" type= "Texture2D" />
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<description >
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Sets the [Texture2D] for the specified [enum Parameter].
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</description>
</method>
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<method name= "set_particle_flag" >
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<return type= "void" />
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<param index= "0" name= "particle_flag" type= "int" enum= "ParticleProcessMaterial.ParticleFlags" />
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<param index= "1" name= "enable" type= "bool" />
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<description >
If [code]true[/code], enables the specified particle flag. See [enum ParticleFlags] for options.
</description>
</method>
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</methods>
<members >
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<member name= "alpha_curve" type= "Texture2D" setter= "set_alpha_curve" getter= "get_alpha_curve" >
The alpha value of each particle's color will be multiplied by this [CurveTexture] over its lifetime.
</member>
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<member name= "angle_curve" type= "Texture2D" setter= "set_param_texture" getter= "get_param_texture" >
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Each particle's rotation will be animated along this [CurveTexture].
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</member>
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<member name= "angle_max" type= "float" setter= "set_param_max" getter= "get_param_max" default= "0.0" >
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Maximum initial rotation applied to each particle, in degrees.
Only applied when [member particle_flag_disable_z] or [member particle_flag_rotate_y] are [code]true[/code] or the [BaseMaterial3D] being used to draw the particle is using [constant BaseMaterial3D.BILLBOARD_PARTICLES].
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</member>
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<member name= "angle_min" type= "float" setter= "set_param_min" getter= "get_param_min" default= "0.0" >
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Minimum equivalent of [member angle_max].
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</member>
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<member name= "angular_velocity_curve" type= "Texture2D" setter= "set_param_texture" getter= "get_param_texture" >
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Each particle's angular velocity (rotation speed) will vary along this [CurveTexture] over its lifetime.
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</member>
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<member name= "angular_velocity_max" type= "float" setter= "set_param_max" getter= "get_param_max" default= "0.0" >
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Maximum initial angular velocity (rotation speed) applied to each particle in [i]degrees[/i] per second.
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Only applied when [member particle_flag_disable_z] or [member particle_flag_rotate_y] are [code]true[/code] or the [BaseMaterial3D] being used to draw the particle is using [constant BaseMaterial3D.BILLBOARD_PARTICLES].
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</member>
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<member name= "angular_velocity_min" type= "float" setter= "set_param_min" getter= "get_param_min" default= "0.0" >
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Minimum equivalent of [member angular_velocity_max].
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</member>
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<member name= "anim_offset_curve" type= "Texture2D" setter= "set_param_texture" getter= "get_param_texture" >
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Each particle's animation offset will vary along this [CurveTexture].
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</member>
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<member name= "anim_offset_max" type= "float" setter= "set_param_max" getter= "get_param_max" default= "0.0" >
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Maximum animation offset that corresponds to frame index in the texture. [code]0[/code] is the first frame, [code]1[/code] is the last one. See [member CanvasItemMaterial.particles_animation].
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</member>
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<member name= "anim_offset_min" type= "float" setter= "set_param_min" getter= "get_param_min" default= "0.0" >
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Minimum equivalent of [member anim_offset_max].
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</member>
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<member name= "anim_speed_curve" type= "Texture2D" setter= "set_param_texture" getter= "get_param_texture" >
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Each particle's animation speed will vary along this [CurveTexture].
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</member>
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<member name= "anim_speed_max" type= "float" setter= "set_param_max" getter= "get_param_max" default= "0.0" >
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Maximum particle animation speed. Animation speed of [code]1[/code] means that the particles will make full [code]0[/code] to [code]1[/code] offset cycle during lifetime, [code]2[/code] means [code]2[/code] cycles etc.
With animation speed greater than [code]1[/code], remember to enable [member CanvasItemMaterial.particles_anim_loop] property if you want the animation to repeat.
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</member>
<member name= "anim_speed_min" type= "float" setter= "set_param_min" getter= "get_param_min" default= "0.0" >
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Minimum equivalent of [member anim_speed_max].
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</member>
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<member name= "attractor_interaction_enabled" type= "bool" setter= "set_attractor_interaction_enabled" getter= "is_attractor_interaction_enabled" default= "true" >
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If [code]true[/code], interaction with particle attractors is enabled. In 3D, attraction only occurs within the area defined by the [GPUParticles3D] node's [member GPUParticles3D.visibility_aabb].
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</member>
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<member name= "collision_bounce" type= "float" setter= "set_collision_bounce" getter= "get_collision_bounce" >
The particles' bounciness. Values range from [code]0[/code] (no bounce) to [code]1[/code] (full bounciness). Only effective if [member collision_mode] is [constant COLLISION_RIGID].
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</member>
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<member name= "collision_friction" type= "float" setter= "set_collision_friction" getter= "get_collision_friction" >
The particles' friction. Values range from [code]0[/code] (frictionless) to [code]1[/code] (maximum friction). Only effective if [member collision_mode] is [constant COLLISION_RIGID].
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</member>
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<member name= "collision_mode" type= "int" setter= "set_collision_mode" getter= "get_collision_mode" enum= "ParticleProcessMaterial.CollisionMode" default= "0" >
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The particles' collision mode.
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[b]Note:[/b] 3D Particles can only collide with [GPUParticlesCollision3D] nodes, not [PhysicsBody3D] nodes. To make particles collide with various objects, you can add [GPUParticlesCollision3D] nodes as children of [PhysicsBody3D] nodes. In 3D, collisions only occur within the area defined by the [GPUParticles3D] node's [member GPUParticles3D.visibility_aabb].
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[b]Note:[/b] 2D Particles can only collide with [LightOccluder2D] nodes, not [PhysicsBody2D] nodes.
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</member>
<member name= "collision_use_scale" type= "bool" setter= "set_collision_use_scale" getter= "is_collision_using_scale" default= "false" >
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If [code]true[/code], [member GPUParticles3D.collision_base_size] is multiplied by the particle's effective scale (see [member scale_min], [member scale_max], [member scale_curve], and [member scale_over_velocity_curve]).
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</member>
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<member name= "color" type= "Color" setter= "set_color" getter= "get_color" default= "Color(1, 1, 1, 1)" keywords= "colour" >
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Each particle's initial color. If the [GPUParticles2D]'s [code]texture[/code] is defined, it will be multiplied by this color.
[b]Note:[/b] [member color] multiplies the particle mesh's vertex colors. To have a visible effect on a [BaseMaterial3D], [member BaseMaterial3D.vertex_color_use_as_albedo] [i]must[/i] be [code]true[/code]. For a [ShaderMaterial], [code]ALBEDO *= COLOR.rgb;[/code] must be inserted in the shader's [code]fragment()[/code] function. Otherwise, [member color] will have no visible effect.
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</member>
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<member name= "color_initial_ramp" type= "Texture2D" setter= "set_color_initial_ramp" getter= "get_color_initial_ramp" >
Each particle's initial color will vary along this [GradientTexture1D] (multiplied with [member color]).
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[b]Note:[/b] [member color_initial_ramp] multiplies the particle mesh's vertex colors. To have a visible effect on a [BaseMaterial3D], [member BaseMaterial3D.vertex_color_use_as_albedo] [i]must[/i] be [code]true[/code]. For a [ShaderMaterial], [code]ALBEDO *= COLOR.rgb;[/code] must be inserted in the shader's [code]fragment()[/code] function. Otherwise, [member color_initial_ramp] will have no visible effect.
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</member>
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<member name= "color_ramp" type= "Texture2D" setter= "set_color_ramp" getter= "get_color_ramp" >
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Each particle's color will vary along this [GradientTexture1D] over its lifetime (multiplied with [member color]).
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[b]Note:[/b] [member color_ramp] multiplies the particle mesh's vertex colors. To have a visible effect on a [BaseMaterial3D], [member BaseMaterial3D.vertex_color_use_as_albedo] [i]must[/i] be [code]true[/code]. For a [ShaderMaterial], [code]ALBEDO *= COLOR.rgb;[/code] must be inserted in the shader's [code]fragment()[/code] function. Otherwise, [member color_ramp] will have no visible effect.
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</member>
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<member name= "damping_curve" type= "Texture2D" setter= "set_param_texture" getter= "get_param_texture" >
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Damping will vary along this [CurveTexture].
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</member>
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<member name= "damping_max" type= "float" setter= "set_param_max" getter= "get_param_max" default= "0.0" >
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The maximum rate at which particles lose velocity. For example value of [code]100[/code] means that the particle will go from [code]100[/code] velocity to [code]0[/code] in [code]1[/code] second.
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</member>
<member name= "damping_min" type= "float" setter= "set_param_min" getter= "get_param_min" default= "0.0" >
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Minimum equivalent of [member damping_max].
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</member>
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<member name= "direction" type= "Vector3" setter= "set_direction" getter= "get_direction" default= "Vector3(1, 0, 0)" >
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Unit vector specifying the particles' emission direction.
</member>
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<member name= "directional_velocity_curve" type= "Texture2D" setter= "set_param_texture" getter= "get_param_texture" >
A curve that specifies the velocity along each of the axes of the particle system along its lifetime.
[b]Note:[/b] Animated velocities will not be affected by damping, use [member velocity_limit_curve] instead.
</member>
<member name= "directional_velocity_max" type= "float" setter= "set_param_max" getter= "get_param_max" >
Maximum directional velocity value, which is multiplied by [member directional_velocity_curve].
[b]Note:[/b] Animated velocities will not be affected by damping, use [member velocity_limit_curve] instead.
</member>
<member name= "directional_velocity_min" type= "float" setter= "set_param_min" getter= "get_param_min" >
Minimum directional velocity value, which is multiplied by [member directional_velocity_curve].
[b]Note:[/b] Animated velocities will not be affected by damping, use [member velocity_limit_curve] instead.
</member>
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<member name= "emission_box_extents" type= "Vector3" setter= "set_emission_box_extents" getter= "get_emission_box_extents" >
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The box's extents if [member emission_shape] is set to [constant EMISSION_SHAPE_BOX].
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[b]Note:[/b] [member emission_box_extents] starts from the center point and applies the X, Y, and Z values in both directions. The size is twice the area of the extents.
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</member>
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<member name= "emission_color_texture" type= "Texture2D" setter= "set_emission_color_texture" getter= "get_emission_color_texture" >
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Particle color will be modulated by color determined by sampling this texture at the same point as the [member emission_point_texture].
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[b]Note:[/b] [member emission_color_texture] multiplies the particle mesh's vertex colors. To have a visible effect on a [BaseMaterial3D], [member BaseMaterial3D.vertex_color_use_as_albedo] [i]must[/i] be [code]true[/code]. For a [ShaderMaterial], [code]ALBEDO *= COLOR.rgb;[/code] must be inserted in the shader's [code]fragment()[/code] function. Otherwise, [member emission_color_texture] will have no visible effect.
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</member>
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<member name= "emission_curve" type= "Texture2D" setter= "set_emission_curve" getter= "get_emission_curve" >
Each particle's color will be multiplied by this [CurveTexture] over its lifetime.
[b]Note:[/b] This property won't have a visible effect unless the render material is marked as unshaded.
</member>
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<member name= "emission_normal_texture" type= "Texture2D" setter= "set_emission_normal_texture" getter= "get_emission_normal_texture" >
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Particle velocity and rotation will be set by sampling this texture at the same point as the [member emission_point_texture]. Used only in [constant EMISSION_SHAPE_DIRECTED_POINTS]. Can be created automatically from mesh or node by selecting "Create Emission Points from Mesh/Node" under the "Particles" tool in the toolbar.
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</member>
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<member name= "emission_point_count" type= "int" setter= "set_emission_point_count" getter= "get_emission_point_count" >
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The number of emission points if [member emission_shape] is set to [constant EMISSION_SHAPE_POINTS] or [constant EMISSION_SHAPE_DIRECTED_POINTS].
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</member>
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<member name= "emission_point_texture" type= "Texture2D" setter= "set_emission_point_texture" getter= "get_emission_point_texture" >
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Particles will be emitted at positions determined by sampling this texture at a random position. Used with [constant EMISSION_SHAPE_POINTS] and [constant EMISSION_SHAPE_DIRECTED_POINTS]. Can be created automatically from mesh or node by selecting "Create Emission Points from Mesh/Node" under the "Particles" tool in the toolbar.
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</member>
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<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>
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<member name= "emission_ring_cone_angle" type= "float" setter= "set_emission_ring_cone_angle" getter= "get_emission_ring_cone_angle" >
The angle of the cone when using the emitter [constant EMISSION_SHAPE_RING]. The default angle of 90 degrees results in a ring, while an angle of 0 degrees results in a cone. Intermediate values will result in a ring where one end is larger than the other.
[b]Note:[/b] Depending on [member emission_ring_height], the angle may be clamped if the ring's end is reached to form a perfect cone.
</member>
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<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>
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<member name= "emission_shape" type= "int" setter= "set_emission_shape" getter= "get_emission_shape" enum= "ParticleProcessMaterial.EmissionShape" default= "0" >
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Particles will be emitted inside this region. Use [enum EmissionShape] constants for values.
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</member>
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<member name= "emission_shape_offset" type= "Vector3" setter= "set_emission_shape_offset" getter= "get_emission_shape_offset" default= "Vector3(0, 0, 0)" >
The offset for the [member emission_shape], in local space.
</member>
<member name= "emission_shape_scale" type= "Vector3" setter= "set_emission_shape_scale" getter= "get_emission_shape_scale" default= "Vector3(1, 1, 1)" >
The scale of the [member emission_shape], in local space.
</member>
2019-06-29 19:22:15 +00:00
<member name= "emission_sphere_radius" type= "float" setter= "set_emission_sphere_radius" getter= "get_emission_sphere_radius" >
2023-10-02 18:11:43 +00:00
The sphere's radius if [member emission_shape] is set to [constant EMISSION_SHAPE_SPHERE].
2017-09-12 20:42:36 +00:00
</member>
2019-06-29 10:38:01 +00:00
<member name= "flatness" type= "float" setter= "set_flatness" getter= "get_flatness" default= "0.0" >
2021-03-25 16:33:33 +00:00
Amount of [member spread] along the Y axis.
2017-09-12 20:42:36 +00:00
</member>
2019-09-24 17:45:03 +00:00
<member name= "gravity" type= "Vector3" setter= "set_gravity" getter= "get_gravity" default= "Vector3(0, -9.8, 0)" >
2019-06-29 13:24:23 +00:00
Gravity applied to every particle.
2017-09-12 20:42:36 +00:00
</member>
2020-02-12 08:59:06 +00:00
<member name= "hue_variation_curve" type= "Texture2D" setter= "set_param_texture" getter= "get_param_texture" >
2017-10-03 19:30:32 +00:00
Each particle's hue will vary along this [CurveTexture].
2017-09-12 20:42:36 +00:00
</member>
2021-07-13 17:46:27 +00:00
<member name= "hue_variation_max" type= "float" setter= "set_param_max" getter= "get_param_max" default= "0.0" >
2022-07-01 13:09:41 +00:00
Maximum initial hue variation applied to each particle. It will shift the particle color's hue.
2021-07-13 17:46:27 +00:00
</member>
<member name= "hue_variation_min" type= "float" setter= "set_param_min" getter= "get_param_min" default= "0.0" >
2022-07-01 13:09:41 +00:00
Minimum equivalent of [member hue_variation_max].
2017-09-12 20:42:36 +00:00
</member>
2023-08-13 11:08:52 +00:00
<member name= "inherit_velocity_ratio" type= "float" setter= "set_inherit_velocity_ratio" getter= "get_inherit_velocity_ratio" default= "0.0" >
Percentage of the velocity of the respective [GPUParticles2D] or [GPUParticles3D] inherited by each particle when spawning.
</member>
2021-07-13 17:46:27 +00:00
<member name= "initial_velocity_max" type= "float" setter= "set_param_max" getter= "get_param_max" default= "0.0" >
2022-07-01 13:09:41 +00:00
Maximum initial velocity magnitude for each particle. Direction comes from [member direction] and [member spread].
2017-09-12 20:42:36 +00:00
</member>
2021-07-13 17:46:27 +00:00
<member name= "initial_velocity_min" type= "float" setter= "set_param_min" getter= "get_param_min" default= "0.0" >
2022-07-01 13:09:41 +00:00
Minimum equivalent of [member initial_velocity_max].
2017-09-12 20:42:36 +00:00
</member>
2019-07-15 04:48:20 +00:00
<member name= "lifetime_randomness" type= "float" setter= "set_lifetime_randomness" getter= "get_lifetime_randomness" default= "0.0" >
2023-06-27 11:15:57 +00:00
Particle lifetime randomness ratio. The equation for the lifetime of a particle is [code]lifetime * (1.0 - randf() * lifetime_randomness)[/code]. For example, a [member lifetime_randomness] of [code]0.4[/code] scales the lifetime between [code]0.6[/code] to [code]1.0[/code] of its original value.
2019-07-15 04:48:20 +00:00
</member>
2020-02-12 08:59:06 +00:00
<member name= "linear_accel_curve" type= "Texture2D" setter= "set_param_texture" getter= "get_param_texture" >
2017-10-03 19:30:32 +00:00
Each particle's linear acceleration will vary along this [CurveTexture].
2017-09-12 20:42:36 +00:00
</member>
2021-07-13 17:46:27 +00:00
<member name= "linear_accel_max" type= "float" setter= "set_param_max" getter= "get_param_max" default= "0.0" >
2022-07-01 13:09:41 +00:00
Maximum linear acceleration applied to each particle in the direction of motion.
2017-09-12 20:42:36 +00:00
</member>
2021-07-13 17:46:27 +00:00
<member name= "linear_accel_min" type= "float" setter= "set_param_min" getter= "get_param_min" default= "0.0" >
2022-10-06 19:59:48 +00:00
Minimum equivalent of [member linear_accel_max].
2017-09-12 20:42:36 +00:00
</member>
2020-02-12 08:59:06 +00:00
<member name= "orbit_velocity_curve" type= "Texture2D" setter= "set_param_texture" getter= "get_param_texture" >
2017-10-03 19:30:32 +00:00
Each particle's orbital velocity will vary along this [CurveTexture].
2023-08-13 11:08:52 +00:00
[b]Note:[/b] For 3D orbital velocity, use a [CurveXYZTexture].
[b]Note:[/b] Animated velocities will not be affected by damping, use [member velocity_limit_curve] instead.
2017-09-12 20:42:36 +00:00
</member>
2023-08-13 11:08:52 +00:00
<member name= "orbit_velocity_max" type= "float" setter= "set_param_max" getter= "get_param_max" default= "0.0" >
2022-07-01 13:09:41 +00:00
Maximum orbital velocity applied to each particle. Makes the particles circle around origin. Specified in number of full rotations around origin per second.
2023-08-13 11:08:52 +00:00
[b]Note:[/b] Animated velocities will not be affected by damping, use [member velocity_limit_curve] instead.
2021-07-13 17:46:27 +00:00
</member>
2023-08-13 11:08:52 +00:00
<member name= "orbit_velocity_min" type= "float" setter= "set_param_min" getter= "get_param_min" default= "0.0" >
2022-07-01 13:09:41 +00:00
Minimum equivalent of [member orbit_velocity_max].
2023-08-13 11:08:52 +00:00
[b]Note:[/b] Animated velocities will not be affected by damping, use [member velocity_limit_curve] instead.
2017-09-12 20:42:36 +00:00
</member>
2020-12-04 23:35:57 +00:00
<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>
2023-08-13 11:08:52 +00:00
<member name= "particle_flag_damping_as_friction" type= "bool" setter= "set_particle_flag" getter= "get_particle_flag" default= "false" >
Changes the behavior of the damping properties from a linear deceleration to a deceleration based on speed percentage.
</member>
2020-12-04 23:35:57 +00:00
<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" >
2021-07-13 17:46:27 +00:00
If [code]true[/code], particles rotate around Y axis by [member angle_min].
2017-09-12 20:42:36 +00:00
</member>
2020-02-12 08:59:06 +00:00
<member name= "radial_accel_curve" type= "Texture2D" setter= "set_param_texture" getter= "get_param_texture" >
2017-10-03 19:30:32 +00:00
Each particle's radial acceleration will vary along this [CurveTexture].
2017-09-12 20:42:36 +00:00
</member>
2021-07-13 17:46:27 +00:00
<member name= "radial_accel_max" type= "float" setter= "set_param_max" getter= "get_param_max" default= "0.0" >
2022-07-01 13:09:41 +00:00
Maximum radial acceleration applied to each particle. Makes particle accelerate away from the origin or towards it if negative.
2017-09-12 20:42:36 +00:00
</member>
2021-07-13 17:46:27 +00:00
<member name= "radial_accel_min" type= "float" setter= "set_param_min" getter= "get_param_min" default= "0.0" >
2022-07-01 13:09:41 +00:00
Minimum equivalent of [member radial_accel_max].
2017-09-12 20:42:36 +00:00
</member>
2023-08-13 11:08:52 +00:00
<member name= "radial_velocity_curve" type= "Texture2D" setter= "set_param_texture" getter= "get_param_texture" >
A [CurveTexture] that defines the velocity over the particle's lifetime away (or toward) the [member velocity_pivot].
[b]Note:[/b] Animated velocities will not be affected by damping, use [member velocity_limit_curve] instead.
</member>
<member name= "radial_velocity_max" type= "float" setter= "set_param_max" getter= "get_param_max" default= "0.0" >
Maximum radial velocity applied to each particle. Makes particles move away from the [member velocity_pivot], or toward it if negative.
[b]Note:[/b] Animated velocities will not be affected by damping, use [member velocity_limit_curve] instead.
</member>
<member name= "radial_velocity_min" type= "float" setter= "set_param_min" getter= "get_param_min" default= "0.0" >
Minimum radial velocity applied to each particle. Makes particles move away from the [member velocity_pivot], or toward it if negative.
[b]Note:[/b] Animated velocities will not be affected by damping, use [member velocity_limit_curve] instead.
</member>
2020-02-12 08:59:06 +00:00
<member name= "scale_curve" type= "Texture2D" setter= "set_param_texture" getter= "get_param_texture" >
2023-10-19 09:50:28 +00:00
Each particle's scale will vary along this [CurveTexture] over its lifetime. If a [CurveXYZTexture] is supplied instead, the scale will be separated per-axis.
2017-09-12 20:42:36 +00:00
</member>
2021-07-13 17:46:27 +00:00
<member name= "scale_max" type= "float" setter= "set_param_max" getter= "get_param_max" default= "1.0" >
2022-07-01 13:09:41 +00:00
Maximum initial scale applied to each particle.
2021-07-13 17:46:27 +00:00
</member>
<member name= "scale_min" type= "float" setter= "set_param_min" getter= "get_param_min" default= "1.0" >
2022-07-01 13:09:41 +00:00
Minimum equivalent of [member scale_max].
2017-09-12 20:42:36 +00:00
</member>
2023-08-13 11:08:52 +00:00
<member name= "scale_over_velocity_curve" type= "Texture2D" setter= "set_param_texture" getter= "get_param_texture" >
Either a [CurveTexture] or a [CurveXYZTexture] that scales each particle based on its velocity.
</member>
<member name= "scale_over_velocity_max" type= "float" setter= "set_param_max" getter= "get_param_max" default= "0.0" >
Maximum velocity value reference for [member scale_over_velocity_curve].
[member scale_over_velocity_curve] will be interpolated between [member scale_over_velocity_min] and [member scale_over_velocity_max].
</member>
<member name= "scale_over_velocity_min" type= "float" setter= "set_param_min" getter= "get_param_min" default= "0.0" >
Minimum velocity value reference for [member scale_over_velocity_curve].
[member scale_over_velocity_curve] will be interpolated between [member scale_over_velocity_min] and [member scale_over_velocity_max].
</member>
2019-06-29 10:38:01 +00:00
<member name= "spread" type= "float" setter= "set_spread" getter= "get_spread" default= "45.0" >
2021-03-25 16:33:33 +00:00
Each particle's initial direction range from [code]+spread[/code] to [code]-spread[/code] degrees.
2017-09-12 20:42:36 +00:00
</member>
2022-09-24 12:22:37 +00:00
<member name= "sub_emitter_amount_at_collision" type= "int" setter= "set_sub_emitter_amount_at_collision" getter= "get_sub_emitter_amount_at_collision" >
2023-10-25 04:16:12 +00:00
The amount of particles to spawn from the subemitter node when a collision occurs. When combined with [constant COLLISION_HIDE_ON_CONTACT] on the main particles material, this can be used to achieve effects such as raindrops hitting the ground.
[b]Note:[/b] This value shouldn't exceed [member GPUParticles2D.amount] or [member GPUParticles3D.amount] defined on the [i]subemitter node[/i] (not the main node), relative to the subemitter's particle lifetime. If the number of particles is exceeded, no new particles will spawn from the subemitter until enough particles have expired.
2022-09-24 12:22:37 +00:00
</member>
2020-09-11 10:22:10 +00:00
<member name= "sub_emitter_amount_at_end" type= "int" setter= "set_sub_emitter_amount_at_end" getter= "get_sub_emitter_amount_at_end" >
2023-10-25 04:16:12 +00:00
The amount of particles to spawn from the subemitter node when the particle expires.
[b]Note:[/b] This value shouldn't exceed [member GPUParticles2D.amount] or [member GPUParticles3D.amount] defined on the [i]subemitter node[/i] (not the main node), relative to the subemitter's particle lifetime. If the number of particles is exceeded, no new particles will spawn from the subemitter until enough particles have expired.
2020-09-11 10:22:10 +00:00
</member>
<member name= "sub_emitter_frequency" type= "float" setter= "set_sub_emitter_frequency" getter= "get_sub_emitter_frequency" >
2023-10-25 04:16:12 +00:00
The frequency at which particles should be emitted from the subemitter node. One particle will be spawned every [member sub_emitter_frequency] seconds.
[b]Note:[/b] This value shouldn't exceed [member GPUParticles2D.amount] or [member GPUParticles3D.amount] defined on the [i]subemitter node[/i] (not the main node), relative to the subemitter's particle lifetime. If the number of particles is exceeded, no new particles will spawn from the subemitter until enough particles have expired.
2020-09-11 10:22:10 +00:00
</member>
<member name= "sub_emitter_keep_velocity" type= "bool" setter= "set_sub_emitter_keep_velocity" getter= "get_sub_emitter_keep_velocity" default= "false" >
2023-10-25 04:16:12 +00:00
If [code]true[/code], the subemitter inherits the parent particle's velocity when it spawns.
2020-09-11 10:22:10 +00:00
</member>
2022-08-18 09:09:22 +00:00
<member name= "sub_emitter_mode" type= "int" setter= "set_sub_emitter_mode" getter= "get_sub_emitter_mode" enum= "ParticleProcessMaterial.SubEmitterMode" default= "0" >
2023-10-25 04:16:12 +00:00
The particle subemitter mode (see [member GPUParticles2D.sub_emitter] and [member GPUParticles3D.sub_emitter]).
2020-09-11 10:22:10 +00:00
</member>
2020-02-12 08:59:06 +00:00
<member name= "tangential_accel_curve" type= "Texture2D" setter= "set_param_texture" getter= "get_param_texture" >
2017-10-03 19:30:32 +00:00
Each particle's tangential acceleration will vary along this [CurveTexture].
2017-09-12 20:42:36 +00:00
</member>
2021-07-13 17:46:27 +00:00
<member name= "tangential_accel_max" type= "float" setter= "set_param_max" getter= "get_param_max" default= "0.0" >
2022-07-01 13:09:41 +00:00
Maximum tangential acceleration applied to each particle. Tangential acceleration is perpendicular to the particle's velocity giving the particles a swirling motion.
2021-07-13 17:46:27 +00:00
</member>
<member name= "tangential_accel_min" type= "float" setter= "set_param_min" getter= "get_param_min" default= "0.0" >
2022-07-01 13:09:41 +00:00
Minimum equivalent of [member tangential_accel_max].
2017-09-12 20:42:36 +00:00
</member>
2022-08-02 13:41:14 +00:00
<member name= "turbulence_enabled" type= "bool" setter= "set_turbulence_enabled" getter= "get_turbulence_enabled" default= "false" >
2023-04-29 22:38:13 +00:00
If [code]true[/code], enables turbulence for the particle system. Turbulence can be used to vary particle movement according to its position (based on a 3D noise pattern). In 3D, [GPUParticlesAttractorVectorField3D] with [NoiseTexture3D] can be used as an alternative to turbulence that works in world space and with multiple particle systems reacting in the same way.
[b]Note:[/b] Enabling turbulence has a high performance cost on the GPU. Only enable turbulence on a few particle systems at once at most, and consider disabling it when targeting mobile/web platforms.
2021-11-26 14:18:46 +00:00
</member>
2022-08-02 07:21:04 +00:00
<member name= "turbulence_influence_max" type= "float" setter= "set_param_max" getter= "get_param_max" default= "0.1" >
2023-03-03 09:41:41 +00:00
Maximum turbulence influence on each particle.
The actual amount of turbulence influence on each particle is calculated as a random value between [member turbulence_influence_min] and [member turbulence_influence_max] and multiplied by the amount of turbulence influence from [member turbulence_influence_over_life].
2021-11-26 14:18:46 +00:00
</member>
2022-08-02 07:21:04 +00:00
<member name= "turbulence_influence_min" type= "float" setter= "set_param_min" getter= "get_param_min" default= "0.1" >
2023-03-03 09:41:41 +00:00
Minimum turbulence influence on each particle.
2021-11-26 14:18:46 +00:00
The actual amount of turbulence influence on each particle is calculated as a random value between [member turbulence_influence_min] and [member turbulence_influence_max] and multiplied by the amount of turbulence influence from [member turbulence_influence_over_life].
</member>
<member name= "turbulence_influence_over_life" type= "Texture2D" setter= "set_param_texture" getter= "get_param_texture" >
Each particle's amount of turbulence will be influenced along this [CurveTexture] over its life time.
</member>
2022-08-02 07:21:04 +00:00
<member name= "turbulence_initial_displacement_max" type= "float" setter= "set_param_max" getter= "get_param_max" default= "0.0" >
2023-04-29 22:38:13 +00:00
Maximum displacement of each particle's spawn position by the turbulence.
2021-11-26 14:18:46 +00:00
The actual amount of displacement will be a factor of the underlying turbulence multiplied by a random value between [member turbulence_initial_displacement_min] and [member turbulence_initial_displacement_max].
</member>
2022-08-02 07:21:04 +00:00
<member name= "turbulence_initial_displacement_min" type= "float" setter= "set_param_min" getter= "get_param_min" default= "0.0" >
2023-04-29 22:38:13 +00:00
Minimum displacement of each particle's spawn position by the turbulence.
2021-11-26 14:18:46 +00:00
The actual amount of displacement will be a factor of the underlying turbulence multiplied by a random value between [member turbulence_initial_displacement_min] and [member turbulence_initial_displacement_max].
</member>
2022-08-02 07:21:04 +00:00
<member name= "turbulence_noise_scale" type= "float" setter= "set_turbulence_noise_scale" getter= "get_turbulence_noise_scale" default= "9.0" >
2021-11-26 14:18:46 +00:00
This value controls the overall scale/frequency of the turbulence noise pattern.
A small scale will result in smaller features with more detail while a high scale will result in smoother noise with larger features.
</member>
2023-05-17 10:10:24 +00:00
<member name= "turbulence_noise_speed" type= "Vector3" setter= "set_turbulence_noise_speed" getter= "get_turbulence_noise_speed" default= "Vector3(0, 0, 0)" >
A scrolling velocity for the turbulence field. This sets a directional trend for the pattern to move in over time.
The default value of [code]Vector3(0, 0, 0)[/code] turns off the scrolling.
2021-11-26 14:18:46 +00:00
</member>
2023-05-17 10:10:24 +00:00
<member name= "turbulence_noise_speed_random" type= "float" setter= "set_turbulence_noise_speed_random" getter= "get_turbulence_noise_speed_random" default= "0.2" >
The in-place rate of change of the turbulence field. This defines how quickly the noise pattern varies over time.
A value of 0.0 will result in a fixed pattern.
2021-11-26 14:18:46 +00:00
</member>
2022-08-02 07:21:04 +00:00
<member name= "turbulence_noise_strength" type= "float" setter= "set_turbulence_noise_strength" getter= "get_turbulence_noise_strength" default= "1.0" >
2023-05-17 10:10:24 +00:00
The turbulence noise strength. Increasing this will result in a stronger, more contrasting, flow pattern.
2021-11-26 14:18:46 +00:00
</member>
2023-08-13 11:08:52 +00:00
<member name= "velocity_limit_curve" type= "Texture2D" setter= "set_velocity_limit_curve" getter= "get_velocity_limit_curve" >
A [CurveTexture] that defines the maximum velocity of a particle during its lifetime.
</member>
<member name= "velocity_pivot" type= "Vector3" setter= "set_velocity_pivot" getter= "get_velocity_pivot" default= "Vector3(0, 0, 0)" >
2023-11-01 02:15:05 +00:00
A pivot point used to calculate radial and orbital velocity of particles.
2023-08-13 11:08:52 +00:00
</member>
2017-09-12 20:42:36 +00:00
</members>
<constants >
2017-11-24 22:16:30 +00:00
<constant name= "PARAM_INITIAL_LINEAR_VELOCITY" value= "0" enum= "Parameter" >
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Use with [method set_param_min], [method set_param_max], and [method set_param_texture] to set initial velocity properties.
2017-09-12 20:42:36 +00:00
</constant>
2017-11-24 22:16:30 +00:00
<constant name= "PARAM_ANGULAR_VELOCITY" value= "1" enum= "Parameter" >
2021-07-13 17:46:27 +00:00
Use with [method set_param_min], [method set_param_max], and [method set_param_texture] to set angular velocity properties.
2017-09-12 20:42:36 +00:00
</constant>
2017-11-24 22:16:30 +00:00
<constant name= "PARAM_ORBIT_VELOCITY" value= "2" enum= "Parameter" >
2021-07-13 17:46:27 +00:00
Use with [method set_param_min], [method set_param_max], and [method set_param_texture] to set orbital velocity properties.
2017-09-12 20:42:36 +00:00
</constant>
2017-11-24 22:16:30 +00:00
<constant name= "PARAM_LINEAR_ACCEL" value= "3" enum= "Parameter" >
2021-07-13 17:46:27 +00:00
Use with [method set_param_min], [method set_param_max], and [method set_param_texture] to set linear acceleration properties.
2017-09-12 20:42:36 +00:00
</constant>
2017-11-24 22:16:30 +00:00
<constant name= "PARAM_RADIAL_ACCEL" value= "4" enum= "Parameter" >
2021-07-13 17:46:27 +00:00
Use with [method set_param_min], [method set_param_max], and [method set_param_texture] to set radial acceleration properties.
2017-09-12 20:42:36 +00:00
</constant>
2017-11-24 22:16:30 +00:00
<constant name= "PARAM_TANGENTIAL_ACCEL" value= "5" enum= "Parameter" >
2021-07-13 17:46:27 +00:00
Use with [method set_param_min], [method set_param_max], and [method set_param_texture] to set tangential acceleration properties.
2017-09-12 20:42:36 +00:00
</constant>
2017-11-24 22:16:30 +00:00
<constant name= "PARAM_DAMPING" value= "6" enum= "Parameter" >
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Use with [method set_param_min], [method set_param_max], and [method set_param_texture] to set damping properties.
2017-09-12 20:42:36 +00:00
</constant>
2017-11-24 22:16:30 +00:00
<constant name= "PARAM_ANGLE" value= "7" enum= "Parameter" >
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Use with [method set_param_min], [method set_param_max], and [method set_param_texture] to set angle properties.
2017-09-12 20:42:36 +00:00
</constant>
2017-11-24 22:16:30 +00:00
<constant name= "PARAM_SCALE" value= "8" enum= "Parameter" >
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Use with [method set_param_min], [method set_param_max], and [method set_param_texture] to set scale properties.
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</constant>
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<constant name= "PARAM_HUE_VARIATION" value= "9" enum= "Parameter" >
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Use with [method set_param_min], [method set_param_max], and [method set_param_texture] to set hue variation properties.
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</constant>
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<constant name= "PARAM_ANIM_SPEED" value= "10" enum= "Parameter" >
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Use with [method set_param_min], [method set_param_max], and [method set_param_texture] to set animation speed properties.
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</constant>
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<constant name= "PARAM_ANIM_OFFSET" value= "11" enum= "Parameter" >
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Use with [method set_param_min], [method set_param_max], and [method set_param_texture] to set animation offset properties.
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</constant>
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<constant name= "PARAM_RADIAL_VELOCITY" value= "15" enum= "Parameter" >
Use with [method set_param_min], [method set_param_max], and [method set_param_texture] to set radial velocity properties.
</constant>
<constant name= "PARAM_DIRECTIONAL_VELOCITY" value= "16" enum= "Parameter" >
Use with [method set_param_min], [method set_param_max], and [method set_param_texture] to set directional velocity properties.
</constant>
<constant name= "PARAM_SCALE_OVER_VELOCITY" value= "17" enum= "Parameter" >
Use with [method set_param_min], [method set_param_max], and [method set_param_texture] to set scale over velocity properties.
</constant>
<constant name= "PARAM_MAX" value= "18" enum= "Parameter" >
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Represents the size of the [enum Parameter] enum.
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</constant>
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<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].
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</constant>
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<constant name= "PARTICLE_FLAG_ROTATE_Y" value= "1" enum= "ParticleFlags" >
Use with [method set_particle_flag] to set [member particle_flag_rotate_y].
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</constant>
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<constant name= "PARTICLE_FLAG_DISABLE_Z" value= "2" enum= "ParticleFlags" >
Use with [method set_particle_flag] to set [member particle_flag_disable_z].
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</constant>
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<constant name= "PARTICLE_FLAG_DAMPING_AS_FRICTION" value= "3" enum= "ParticleFlags" >
</constant>
<constant name= "PARTICLE_FLAG_MAX" value= "4" enum= "ParticleFlags" >
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Represents the size of the [enum ParticleFlags] enum.
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</constant>
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<constant name= "EMISSION_SHAPE_POINT" value= "0" enum= "EmissionShape" >
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All particles will be emitted from a single point.
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</constant>
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<constant name= "EMISSION_SHAPE_SPHERE" value= "1" enum= "EmissionShape" >
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Particles will be emitted in the volume of a sphere.
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</constant>
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<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" >
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Particles will be emitted in the volume of a box.
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</constant>
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<constant name= "EMISSION_SHAPE_POINTS" value= "4" enum= "EmissionShape" >
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Particles will be emitted at a position determined by sampling a random point on the [member emission_point_texture]. Particle color will be modulated by [member emission_color_texture].
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</constant>
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<constant name= "EMISSION_SHAPE_DIRECTED_POINTS" value= "5" enum= "EmissionShape" >
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Particles will be emitted at a position determined by sampling a random point on the [member emission_point_texture]. Particle velocity and rotation will be set based on [member emission_normal_texture]. Particle color will be modulated by [member emission_color_texture].
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</constant>
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<constant name= "EMISSION_SHAPE_RING" value= "6" enum= "EmissionShape" >
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Particles will be emitted in a ring or cylinder.
</constant>
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<constant name= "EMISSION_SHAPE_MAX" value= "7" enum= "EmissionShape" >
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Represents the size of the [enum EmissionShape] enum.
</constant>
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<constant name= "PARAM_TURB_VEL_INFLUENCE" value= "13" enum= "Parameter" >
Use with [method set_param_min] and [method set_param_max] to set the turbulence minimum und maximum influence on each particles velocity.
</constant>
<constant name= "PARAM_TURB_INIT_DISPLACEMENT" value= "14" enum= "Parameter" >
Use with [method set_param_min] and [method set_param_max] to set the turbulence minimum and maximum displacement of the particles spawn position.
</constant>
<constant name= "PARAM_TURB_INFLUENCE_OVER_LIFE" value= "12" enum= "Parameter" >
Use with [method set_param_texture] to set the turbulence influence over the particles life time.
</constant>
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<constant name= "SUB_EMITTER_DISABLED" value= "0" enum= "SubEmitterMode" >
</constant>
<constant name= "SUB_EMITTER_CONSTANT" value= "1" enum= "SubEmitterMode" >
</constant>
<constant name= "SUB_EMITTER_AT_END" value= "2" enum= "SubEmitterMode" >
</constant>
<constant name= "SUB_EMITTER_AT_COLLISION" value= "3" enum= "SubEmitterMode" >
</constant>
<constant name= "SUB_EMITTER_MAX" value= "4" enum= "SubEmitterMode" >
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Represents the size of the [enum SubEmitterMode] enum.
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</constant>
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<constant name= "COLLISION_DISABLED" value= "0" enum= "CollisionMode" >
No collision for particles. Particles will go through [GPUParticlesCollision3D] nodes.
</constant>
<constant name= "COLLISION_RIGID" value= "1" enum= "CollisionMode" >
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[RigidBody3D]-style collision for particles using [GPUParticlesCollision3D] nodes.
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</constant>
<constant name= "COLLISION_HIDE_ON_CONTACT" value= "2" enum= "CollisionMode" >
Hide particles instantly when colliding with a [GPUParticlesCollision3D] node. This can be combined with a subemitter that uses the [constant COLLISION_RIGID] collision mode to "replace" the parent particle with the subemitter on impact.
</constant>
<constant name= "COLLISION_MAX" value= "3" enum= "CollisionMode" >
Represents the size of the [enum CollisionMode] enum.
</constant>
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</constants>
</class>