Version: 2019.3
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ParticleSystem.ShapeModule.texture

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public Texture2D texture;

Description

Specifies a Texture to tint the particle's start colors.

using UnityEditor;
using UnityEngine;

public class ExampleClass : MonoBehaviour { private ParticleSystem ps; public float alphaThreshold = 0.0f; public bool colorAffectsParticles = true; public bool alphaAffectsParticles = true; public bool bilinearFiltering = false;

void Start() { ps = GetComponent<ParticleSystem>();

var main = ps.main; main.startSpeed = 0.0f; main.startSize = 0.5f; main.startLifetime = 1.0f;

var emission = ps.emission; emission.rateOverTime = 500.0f;

var shape = ps.shape; shape.shapeType = ParticleSystemShapeType.Circle; shape.radius = 6.0f; shape.texture = AssetDatabase.GetBuiltinExtraResource<Texture2D>("Default-Particle.psd"); }

void Update() { var shape = ps.shape; shape.textureClipThreshold = alphaThreshold; shape.textureColorAffectsParticles = colorAffectsParticles; shape.textureAlphaAffectsParticles = alphaAffectsParticles; shape.textureBilinearFiltering = bilinearFiltering; }

void OnGUI() { float y = 120.0f; float spacing = 40.0f;

GUI.Label(new Rect(25, y, 140, 30), "Alpha Threshold"); alphaThreshold = GUI.HorizontalSlider(new Rect(165, y + 5, 100, 30), alphaThreshold, 0.0f, 1.0f); y += spacing;

colorAffectsParticles = GUI.Toggle(new Rect(25, y + 5, 200, 30), colorAffectsParticles, "Color Affects Particles"); y += spacing;

alphaAffectsParticles = GUI.Toggle(new Rect(25, y + 5, 200, 30), alphaAffectsParticles, "Alpha Affects Particles"); y += spacing;

bilinearFiltering = GUI.Toggle(new Rect(25, y + 5, 200, 30), bilinearFiltering, "Bilinear Filtering"); y += spacing; } }