[DOCS] Update ParticlesMaterial, Particles class ref

1 files changed, 18 insertions, 2 deletions

diff --git a/doc/classes/Particles2D.xml b/doc/classes/Particles2D.xml
index d837d6eb62..b2c63ea0c3 100644
--- a/doc/classes/Particles2D.xml
+++ b/doc/classes/Particles2D.xml
@@ -1,10 +1,11 @@
 <?xml version="1.0" encoding="UTF-8" ?>
 <class name="Particles2D" inherits="Node2D" category="Core" version="3.0.alpha.custom_build">
 	<brief_description>
-		2D Particle emitter
+		2D particle emitter.
 	</brief_description>
 	<description>
-		Particles2D is a particle system 2D [Node] that is used to simulate several types of particle effects, such as explosions, rain, snow, fireflies, or other magical-like shinny sparkles. Particles are drawn using impostors, and given their dynamic behavior, the user must provide a visibility bounding box (although helpers to create one automatically exist).
+		2D particle node used to create a variety of particle systems and effects. [code]Particles2D[/code] features an emitter that generates some number of particles at a given rate.
+		Use the [code]process_material[/code] property to add a [ParticlesMaterial] to configure particle appearance and behavior. Alternatively, you can add a [ShaderMaterial] which will be applied to all particles.
 	</description>
 	<tutorials>
 	</tutorials>
@@ -285,46 +286,61 @@
 	</methods>
 	<members>
 		<member name="amount" type="int" setter="set_amount" getter="get_amount">
+			Number of particles to emit.
 		</member>
 		<member name="draw_order" type="int" setter="set_draw_order" getter="get_draw_order" enum="Particles2D.DrawOrder">
+			Particle draw order. Uses [code]DRAW_ORDER_*[/code] values. Default value: [code]DRAW_ORDER_INDEX[/code].
 		</member>
 		<member name="emitting" type="bool" setter="set_emitting" getter="is_emitting">
+			If [code]true[/code] particles are being emitted. Default value: [code]true[/code].
 		</member>
 		<member name="explosiveness" type="float" setter="set_explosiveness_ratio" getter="get_explosiveness_ratio">
+			Time ratio between each emission. If [code]0[/code] particles are emitted continuously. If [code]1[/code] all particles are emitted simultaneously. Default value: [code]0[/code].
 		</member>
 		<member name="fixed_fps" type="int" setter="set_fixed_fps" getter="get_fixed_fps">
 		</member>
 		<member name="fract_delta" type="bool" setter="set_fractional_delta" getter="get_fractional_delta">
 		</member>
 		<member name="h_frames" type="int" setter="set_h_frames" getter="get_h_frames">
+			Number of horizontal frames in [code]texture[/code].
 		</member>
 		<member name="lifetime" type="float" setter="set_lifetime" getter="get_lifetime">
+			Amount of time each particle will exist. Default value: [code]1[/code].
 		</member>
 		<member name="local_coords" type="bool" setter="set_use_local_coordinates" getter="get_use_local_coordinates">
+			If [code]true[/code] particles use the parent node's coordinate space. If [code]false[/code] they use global coordinates. Default value: [code]true[/code].
 		</member>
 		<member name="normal_map" type="Texture" setter="set_normal_map" getter="get_normal_map">
 		</member>
 		<member name="one_shot" type="bool" setter="set_one_shot" getter="get_one_shot">
+			If [code]true[/code] only [code]amount[/code] particles will be emitted. Default value: [code]false[/code].
 		</member>
 		<member name="preprocess" type="float" setter="set_pre_process_time" getter="get_pre_process_time">
 		</member>
 		<member name="process_material" type="Material" setter="set_process_material" getter="get_process_material">
+			[Material] for processing particles. Can be a [ParticlesMaterial] or a [ShaderMaterial].
 		</member>
 		<member name="randomness" type="float" setter="set_randomness_ratio" getter="get_randomness_ratio">
+			Emission randomness ratio. Default value: [code]0[/code].
 		</member>
 		<member name="speed_scale" type="float" setter="set_speed_scale" getter="get_speed_scale">
+			Speed scaling ratio. Default value: [code]1[/code].
 		</member>
 		<member name="texture" type="Texture" setter="set_texture" getter="get_texture">
+			Particle texture. If [code]null[/code] particles will be squares.
 		</member>
 		<member name="v_frames" type="int" setter="set_v_frames" getter="get_v_frames">
+			Number of vertical frames in [code]texture[/code].
 		</member>
 		<member name="visibility_rect" type="Rect2" setter="set_visibility_rect" getter="get_visibility_rect">
 		</member>
 	</members>
 	<constants>
 		<constant name="DRAW_ORDER_INDEX" value="0">
+			Particles are drawn in the order emitted.
 		</constant>
 		<constant name="DRAW_ORDER_LIFETIME" value="1">
+			Particles are drawn in order of remaining lifetime.
 		</constant>
 	</constants>
 </class>