ParticleSystem.ShapeModule.texture

Description

Selects a texture to be used for tinting particle start colors.

#pragma strict
private var ps: ParticleSystem;
public var alphaThreshold: float = 0.0f;
public var colorAffectsParticles: boolean = true;
public var alphaAffectsParticles: boolean = true;
public var bilinearFiltering: boolean = false;
function Start() {
	ps = GetComponent.<ParticleSystem>();
	var main: var = ps.main;
	main.startSpeed = 0.0f;
	main.startSize = 0.5f;
	main.startLifetime = 1.0f;
	var emission: var = ps.emission;
	emission.rateOverTime = 500.0f;
	var shape: var = ps.shape;
	shape.shapeType = ParticleSystemShapeType.Circle;
	shape.radius = 6.0f;
	shape.texture = AssetDatabase.GetBuiltinExtraResource.<Texture2D>("Default-Particle.psd");
}
function Update() {
	var shape: var = ps.shape;
	shape.textureClipThreshold = alphaThreshold;
	shape.textureColorAffectsParticles = colorAffectsParticles;
	shape.textureAlphaAffectsParticles = alphaAffectsParticles;
	shape.textureBilinearFiltering = bilinearFiltering;
}
function OnGUI() {
	var y: float = 120.0f;
	var spacing: float = 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;
}

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;
    }
}