pengtaihao
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ParticleEffectForUGUI
mirror of https://github.com/mob-sakai/ParticleEffectForUGUI
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refactor

pull/225/head
mob-sakai 2022-06-15 09:09:56 +09:00
parent 4fa43eda4b
commit 37d0c4b711
2 changed files with 28 additions and 21 deletions
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34
Scripts/UIParticleRenderer.cs
View File

@ -14,7 +14,7 @@ namespace Coffee.UIExtensions
internal class UIParticleRenderer : MaskableGraphic
{
private static readonly CombineInstance[] s_CombineInstances = new CombineInstance[] { new CombineInstance() };
private static ParticleSystem.Particle[] s_Particles = new ParticleSystem.Particle[2048];
//private static ParticleSystem.Particle[] s_Particles = new ParticleSystem.Particle[2048];
private static readonly List<Material> s_Materials = new List<Material>(2);
private static MaterialPropertyBlock s_Mpb;
private static readonly List<UIParticleRenderer> s_Renderers = new List<UIParticleRenderer>();
@ -401,22 +401,19 @@ namespace Coffee.UIExtensions
{
// Update particle array size and get particles.
var size = _particleSystem.particleCount;
if (s_Particles.Length < size)
{
s_Particles = new ParticleSystem.Particle[Mathf.NextPowerOfTwo(size)];
}
_particleSystem.GetParticles(s_Particles, size);
var particles = ParticleSystemExtensions.GetParticleArray(size);
_particleSystem.GetParticles(particles, size);
// Resolusion resolver:
// (psPos / scale) / (prevPsPos / prevScale) -> psPos * scale.inv * prevPsPos.inv * prevScale
var modifier = psPos.GetScaled(scale.Inverse(), _prevPsPos.Inverse(), _prevScale);
for (var i = 0; i < size; i++)
{
var particle = s_Particles[i];
var particle = particles[i];
particle.position = particle.position.GetScaled(modifier);
s_Particles[i] = particle;
particles[i] = particle;
}
_particleSystem.SetParticles(s_Particles, size);
_particleSystem.SetParticles(particles, size);
// Delay: Do not progress in the frame where the resolution has been changed.
_delay = true;
@ -483,22 +480,17 @@ namespace Coffee.UIExtensions
diffPos.y *= 1f - 1f / Mathf.Max(0.001f, scale.y);
diffPos.z *= 1f - 1f / Mathf.Max(0.001f, scale.z);
var count = _particleSystem.particleCount;
if (s_Particles.Length < count)
var size = _particleSystem.particleCount;
var particles = ParticleSystemExtensions.GetParticleArray(size);
_particleSystem.GetParticles(particles, size);
for (var i = 0; i < size; i++)
{
var size = Mathf.NextPowerOfTwo(count);
s_Particles = new ParticleSystem.Particle[size];
}
_particleSystem.GetParticles(s_Particles);
for (var j = 0; j < count; j++)
{
var p = s_Particles[j];
var p = particles[i];
p.position += diffPos;
s_Particles[j] = p;
particles[i] = p;
}
_particleSystem.SetParticles(s_Particles, count);
_particleSystem.SetParticles(particles, size);
Profiler.EndSample();
}
}

15
Scripts/Utils.cs
View File

@ -71,6 +71,21 @@ namespace Coffee.UIParticleExtensions
public static class ParticleSystemExtensions
{
private static ParticleSystem.Particle[] s_TmpParticles = new ParticleSystem.Particle[2048];
public static ParticleSystem.Particle[] GetParticleArray(int size)
{
if (s_TmpParticles.Length < size)
{
while(s_TmpParticles.Length < size)
{
size = Mathf.NextPowerOfTwo(size);
}
s_TmpParticles = new ParticleSystem.Particle[size];
}
return s_TmpParticles;
}
public static bool CanBakeMesh(this ParticleSystemRenderer self)
{
// #69: Editor crashes when mesh is set to null when `ParticleSystem.RenderMode = Mesh`