/// <summary>
/// Awake is called when the script instance is being loaded.
/// </summary>
void Awake()
{
// Hold the instance.
if (s_Instance == null)
{
s_Instance = GetComponent <UIParticleOverlayCamera> ();
}
// If the instance is duplicated, destroy itself.
else if (s_Instance != this)
{
UnityEngine.Debug.LogWarning("Multiple " + typeof(UIParticleOverlayCamera).Name + " in scene.", this.gameObject);
enabled = false;
#if UNITY_EDITOR
if (!Application.isPlaying)
{
DestroyImmediate(gameObject);
}
else
#endif
{
Destroy(gameObject);
}
return;
}
cameraForOvrelay.enabled = false;
// Singleton has DontDestroy flag.
if (Application.isPlaying)
{
DontDestroyOnLoad(gameObject);
}
}
/// <summary>
/// This function is called when the MonoBehaviour will be destroyed.
/// </summary>
void OnDestroy()
{
// Clear instance on destroy.
if (s_Instance == this)
{
s_Instance = null;
}
}
/// <summary>
/// This function is called when the MonoBehaviour will be destroyed.
/// </summary>
void OnDestroy()
{
#if UNITY_2018_3_OR_NEWER && UNITY_EDITOR
if (s_InstanceForPrefabMode == this)
{
s_InstanceForPrefabMode = null;
}
#endif
// Clear instance on destroy.
if (s_Instance == this)
{
s_Instance = null;
}
}
/// <summary>
/// Update meshe.
/// </summary>
void UpdateMesh()
{
if (m_ParticleSystem && lastCount != m_ParticleSystem.particleCount)
{
lastCount = m_ParticleSystem.particleCount;
}
else
{
if (dontManage && gameObject.layer != 16)
{
return;
}
}
try
{
Profiler.BeginSample("CheckTrail");
CheckTrail();
Profiler.EndSample();
if (m_ParticleSystem && canvas)
{
// I do not know why, but it worked fine when setting `transform.localPosition.z` to `0.01`. (#34, #39)
//{
// Vector3 pos = rectTransform.localPosition;
// if (Mathf.Abs (pos.z) < 0.01f)
// {
// pos.z = 0.01f;
// rectTransform.localPosition = pos;
// }
//}
var rootCanvas = canvas.rootCanvas;
Profiler.BeginSample("Disable ParticleSystemRenderer");
if (_renderer && Application.isPlaying)
{
_renderer.enabled = false;
}
Profiler.EndSample();
Profiler.BeginSample("Make Matrix");
ParticleSystem.MainModule main = m_ParticleSystem.main;
if (!initCulling)
{
initCulling = true;
originCullingMode = m_ParticleSystem.main.cullingMode;
}
if (m_ParticleSystem.main.cullingMode != ParticleSystemCullingMode.AlwaysSimulate)
{
var mainParticle = m_ParticleSystem.main;
mainParticle.cullingMode = ParticleSystemCullingMode.AlwaysSimulate;
}
//scaleaMatrix = main.scalingMode == ParticleSystemScalingMode.Hierarchy
// ? Matrix4x4.Scale (scale * Vector3.one)
// : Matrix4x4.Scale (scale * rootCanvas.transform.localScale);
/*
* fxc
* 不做跟随rootCanvas的缩放
*/
scaleaMatrix = Matrix4x4.Scale(scale * Vector3.one);
Matrix4x4 matrix = default(Matrix4x4);
switch (main.simulationSpace)
{
case ParticleSystemSimulationSpace.Local:
matrix =
//scaleaMatrix
//* Matrix4x4.Rotate (rectTransform.rotation).inverse
//* Matrix4x4.Scale (rectTransform.lossyScale).inverse;
/*
* fxc
* 1.添加zScale解决z为0的情况
* 2.逆矩阵应该先旋转再缩放
*/
scaleaMatrix
* Matrix4x4.Scale(rectTransform.lossyScale + zScale).inverse
*Matrix4x4.Rotate(rectTransform.rotation).inverse;
break;
case ParticleSystemSimulationSpace.World:
matrix =
scaleaMatrix
* rectTransform.worldToLocalMatrix;
bool isLocalScaling = main.scalingMode == ParticleSystemScalingMode.Local;
Vector3 newPos = rectTransform.position;
Vector3 delta = (newPos - _oldPos);
_oldPos = newPos;
if (!Mathf.Approximately(scale, 0) && 0 < delta.sqrMagnitude)
{
if (isLocalScaling)
{
var s = rootCanvas.transform.localScale * scale;
delta.x *= 1f - 1f / s.x;
delta.y *= 1f - 1f / s.y;
delta.z *= 1f - 1f / s.z;
}
else
{
delta = delta * (1 - 1 / scale);
}
int count = m_ParticleSystem.particleCount;
if (s_Particles.Length < count)
{
s_Particles = new ParticleSystem.Particle [s_Particles.Length * 2];
}
m_ParticleSystem.GetParticles(s_Particles);
for (int i = 0; i < count; i++)
{
var p = s_Particles [i];
p.position = p.position + delta;
s_Particles [i] = p;
}
m_ParticleSystem.SetParticles(s_Particles, count);
}
break;
case ParticleSystemSimulationSpace.Custom:
break;
}
Profiler.EndSample();
_mesh.Clear();
if (0 < m_ParticleSystem.particleCount)
{
Profiler.BeginSample("Bake Mesh");
var cam = rootCanvas.renderMode == RenderMode.ScreenSpaceOverlay
? UIParticleOverlayCamera.GetCameraForOvrelay(rootCanvas)
: canvas.worldCamera ?? Camera.main;
if (!cam)
{
return;
}
if (m_IsTrail)
{
_renderer.BakeTrailsMesh(_mesh, cam, true);
}
else
{
_renderer.BakeMesh(_mesh, cam, true);
}
Profiler.EndSample();
// Apply matrix.
Profiler.BeginSample("Apply matrix to position");
_mesh.GetVertices(s_Vertices);
var count = s_Vertices.Count;
for (int i = 0; i < count; i++)
{
s_Vertices [i] = matrix.MultiplyPoint3x4(s_Vertices [i]);
}
_mesh.SetVertices(s_Vertices);
s_Vertices.Clear();
Profiler.EndSample();
}
// Set mesh to CanvasRenderer.
Profiler.BeginSample("Set mesh and texture to CanvasRenderer");
canvasRenderer.SetMesh(_mesh);
canvasRenderer.SetTexture(mainTexture);
if (originRenderQueue == 0 && _renderer != null && _renderer.sharedMaterial != null)
{
originRenderQueue = _renderer.sharedMaterial.renderQueue;
//#if UNITY_EDITOR
// if (Application.isPlaying && _renderer.material != null)
// _renderer.material.renderQueue = 3000;
//#else
_renderer.sharedMaterial.renderQueue = 3000;
//#endif
}
// Copy the value from MaterialPropertyBlock to CanvasRenderer (#41)
UpdateAnimatableMaterialProperties();
Profiler.EndSample();
}
}
catch (System.Exception e)
{
Debug.LogException(e);
}
}
/// <summary>
/// Update meshe.
/// </summary>
void UpdateMesh()
{
try
{
Profiler.BeginSample("CheckTrail");
CheckTrail();
Profiler.EndSample();
if (m_ParticleSystem && canvas)
{
// I do not know why, but it worked fine when setting `transform.localPosition.z` to `0.01`. (#34, #39)
{
Vector3 pos = rectTransform.localPosition;
if (Mathf.Abs(pos.z) < 0.01f)
{
pos.z = 0.01f;
rectTransform.localPosition = pos;
}
}
var rootCanvas = canvas.rootCanvas;
Profiler.BeginSample("Disable ParticleSystemRenderer");
if (Application.isPlaying)
{
_renderer.enabled = false;
}
Profiler.EndSample();
// #69: Editor crashes when mesh is set to null when ParticleSystem.RenderMode=Mesh
if (_renderer.renderMode == ParticleSystemRenderMode.Mesh && !_renderer.mesh)
{
return;
}
// #61: When ParticleSystem.RenderMode=None, an error occurs
if (_renderer.renderMode == ParticleSystemRenderMode.None)
{
return;
}
Profiler.BeginSample("Make Matrix");
ParticleSystem.MainModule main = m_ParticleSystem.main;
scaleaMatrix = main.scalingMode == ParticleSystemScalingMode.Hierarchy
? Matrix4x4.Scale(scale * Vector3.one)
: Matrix4x4.Scale(scale * rootCanvas.transform.localScale);
Matrix4x4 matrix = default(Matrix4x4);
switch (main.simulationSpace)
{
case ParticleSystemSimulationSpace.Local:
matrix =
scaleaMatrix
* Matrix4x4.Rotate(rectTransform.rotation).inverse
*Matrix4x4.Scale(rectTransform.lossyScale + minimumVec3).inverse;
break;
case ParticleSystemSimulationSpace.World:
matrix =
scaleaMatrix
* rectTransform.worldToLocalMatrix;
bool isLocalScaling = main.scalingMode == ParticleSystemScalingMode.Local;
Vector3 newPos = rectTransform.position;
Vector3 delta = (newPos - _oldPos);
_oldPos = newPos;
if (!Mathf.Approximately(scale, 0) && 0 < delta.sqrMagnitude)
{
if (isLocalScaling)
{
var s = rootCanvas.transform.localScale * scale;
delta.x *= 1f - 1f / s.x;
delta.y *= 1f - 1f / s.y;
delta.z *= 1f - 1f / s.z;
}
else
{
delta = delta * (1 - 1 / scale);
}
int count = m_ParticleSystem.particleCount;
if (s_Particles.Length < count)
{
s_Particles = new ParticleSystem.Particle[s_Particles.Length * 2];
}
m_ParticleSystem.GetParticles(s_Particles);
for (int i = 0; i < count; i++)
{
var p = s_Particles[i];
p.position = p.position + delta;
s_Particles[i] = p;
}
m_ParticleSystem.SetParticles(s_Particles, count);
}
break;
case ParticleSystemSimulationSpace.Custom:
break;
}
Profiler.EndSample();
_mesh.Clear();
if (0 < m_ParticleSystem.particleCount)
{
Profiler.BeginSample("Bake Mesh");
var cam = rootCanvas.renderMode == RenderMode.ScreenSpaceOverlay
? UIParticleOverlayCamera.GetCameraForOvrelay(rootCanvas)
: canvas.worldCamera ?? Camera.main;
if (!cam)
{
return;
}
if (m_IsTrail)
{
_renderer.BakeTrailsMesh(_mesh, cam, true);
}
else
{
_renderer.BakeMesh(_mesh, cam, true);
}
Profiler.EndSample();
// Apply matrix.
Profiler.BeginSample("Apply matrix to position");
if (QualitySettings.activeColorSpace == ColorSpace.Linear)
{
_mesh.GetColors(s_Colors);
var count_c = s_Colors.Count;
for (int i = 0; i < count_c; i++)
{
s_Colors[i] = ((Color)s_Colors[i]).gamma;
}
_mesh.SetColors(s_Colors);
}
_mesh.GetVertices(s_Vertices);
var count = s_Vertices.Count;
for (int i = 0; i < count; i++)
{
s_Vertices[i] = matrix.MultiplyPoint3x4(s_Vertices[i]);
}
_mesh.SetVertices(s_Vertices);
_mesh.RecalculateBounds();
s_Vertices.Clear();
s_Colors.Clear();
Profiler.EndSample();
}
// Set mesh to CanvasRenderer.
Profiler.BeginSample("Set mesh and texture to CanvasRenderer");
canvasRenderer.SetMesh(_mesh);
canvasRenderer.SetTexture(mainTexture);
// Copy the value from MaterialPropertyBlock to CanvasRenderer (#41)
UpdateAnimatableMaterialProperties();
Profiler.EndSample();
}
}
catch (System.Exception e)
{
Debug.LogException(e);
}
}
/// <summary>
/// Update meshe.
/// </summary>
void UpdateMesh()
{
try
{
Profiler.BeginSample("CheckTrail");
CheckTrail();
Profiler.EndSample();
if (m_ParticleSystem && canvas)
{
// I do not know why, but it worked fine when setting `transform.localPosition.z` to `0.01`. (#34, #39)
{
Vector3 pos = rectTransform.localPosition;
if (Mathf.Abs(pos.z) < 0.01f)
{
pos.z = 0.01f;
rectTransform.localPosition = pos;
}
}
var rootCanvas = canvas.rootCanvas;
Profiler.BeginSample("Disable ParticleSystemRenderer");
if (Application.isPlaying)
{
_renderer.enabled = false;
}
Profiler.EndSample();
Profiler.BeginSample("Make Matrix");
scaleaMatrix = m_ParticleSystem.main.scalingMode == ParticleSystemScalingMode.Hierarchy
? Matrix4x4.Scale(scale * Vector3.one)
: Matrix4x4.Scale(scale * rootCanvas.transform.localScale);
Matrix4x4 matrix = default(Matrix4x4);
switch (m_ParticleSystem.main.simulationSpace)
{
case ParticleSystemSimulationSpace.Local:
matrix =
scaleaMatrix
* Matrix4x4.Rotate(rectTransform.rotation).inverse
*Matrix4x4.Scale(rectTransform.lossyScale).inverse;
break;
case ParticleSystemSimulationSpace.World:
matrix =
scaleaMatrix
* rectTransform.worldToLocalMatrix;
Vector3 newPos = rectTransform.position;
Vector3 delta = (newPos - _worldPos);
_worldPos = newPos;
if (canvas.renderMode != RenderMode.WorldSpace && !Mathf.Approximately(scale, 0) && 0 < delta.sqrMagnitude)
{
delta *= (1 - 1 / scale);
int count = m_ParticleSystem.particleCount;
if (s_Particles.Length < count)
{
s_Particles = new ParticleSystem.Particle [s_Particles.Length * 2];
}
m_ParticleSystem.GetParticles(s_Particles);
for (int i = 0; i < count; i++)
{
var p = s_Particles [i];
p.position = p.position + delta;
s_Particles [i] = p;
}
m_ParticleSystem.SetParticles(s_Particles, count);
}
break;
case ParticleSystemSimulationSpace.Custom:
break;
}
Profiler.EndSample();
_mesh.Clear();
if (0 < m_ParticleSystem.particleCount)
{
Profiler.BeginSample("Bake Mesh");
var cam = rootCanvas.renderMode == RenderMode.ScreenSpaceOverlay
? UIParticleOverlayCamera.GetCameraForOvrelay(rootCanvas)
: canvas.worldCamera ?? Camera.main;
if (!cam)
{
return;
}
if (m_IsTrail)
{
_renderer.BakeTrailsMesh(_mesh, cam, true);
}
else
{
_renderer.BakeMesh(_mesh, cam, true);
}
Profiler.EndSample();
// Apply matrix.
Profiler.BeginSample("Apply matrix to position");
_mesh.GetVertices(s_Vertices);
var count = s_Vertices.Count;
for (int i = 0; i < count; i++)
{
s_Vertices [i] = matrix.MultiplyPoint3x4(s_Vertices [i]);
}
_mesh.SetVertices(s_Vertices);
s_Vertices.Clear();
Profiler.EndSample();
}
// Set mesh to CanvasRenderer.
Profiler.BeginSample("Set mesh and texture to CanvasRenderer");
canvasRenderer.SetMesh(_mesh);
canvasRenderer.SetTexture(mainTexture);
// Copy the value from MaterialPropertyBlock to CanvasRenderer (#41)
UpdateAnimatableMaterialProperties();
Profiler.EndSample();
}
}
catch (System.Exception e)
{
Debug.LogException(e);
}
}
/// <summary>
/// Update meshe.
/// </summary>
void UpdateMesh()
{
try
{
Profiler.BeginSample("CheckTrail");
CheckTrail();
Profiler.EndSample();
if (m_ParticleSystem && canvas)
{
if (canvas.renderMode != RenderMode.ScreenSpaceOverlay)
{
Vector3 pos = rectTransform.localPosition;
if (Mathf.Abs(pos.z) < 0.01f)
{
pos.z = 0.01f;
rectTransform.localPosition = pos;
}
}
var rootCanvas = canvas.rootCanvas;
Profiler.BeginSample("Disable ParticleSystemRenderer");
if (Application.isPlaying)
{
_renderer.enabled = false;
}
Profiler.EndSample();
Profiler.BeginSample("Make Matrix");
scaleaMatrix = m_ParticleSystem.main.scalingMode == ParticleSystemScalingMode.Hierarchy
? Matrix4x4.Scale(scale * Vector3.one)
: Matrix4x4.Scale(scale * rootCanvas.transform.localScale);
Matrix4x4 matrix = default(Matrix4x4);
switch (m_ParticleSystem.main.simulationSpace)
{
case ParticleSystemSimulationSpace.Local:
matrix =
scaleaMatrix
* Matrix4x4.Rotate(m_ParticleSystem.transform.rotation).inverse
*Matrix4x4.Scale(m_ParticleSystem.transform.lossyScale).inverse;
break;
case ParticleSystemSimulationSpace.World:
matrix =
scaleaMatrix
* m_ParticleSystem.transform.worldToLocalMatrix;
break;
case ParticleSystemSimulationSpace.Custom:
break;
}
Profiler.EndSample();
_mesh.Clear();
if (0 < m_ParticleSystem.particleCount)
{
Profiler.BeginSample("Bake Mesh");
var cam = rootCanvas.renderMode == RenderMode.ScreenSpaceOverlay
? UIParticleOverlayCamera.GetCameraForOvrelay(rootCanvas)
: canvas.worldCamera ?? Camera.main;
if (!cam)
{
return;
}
if (m_IsTrail)
{
_renderer.BakeTrailsMesh(_mesh, cam, true);
}
else
{
_renderer.BakeMesh(_mesh, cam, true);
}
Profiler.EndSample();
// Apply matrix.
Profiler.BeginSample("Apply matrix to position");
_mesh.GetVertices(s_Vertices);
var count = s_Vertices.Count;
for (int i = 0; i < count; i++)
{
s_Vertices [i] = matrix.MultiplyPoint3x4(s_Vertices [i]);
}
_mesh.SetVertices(s_Vertices);
s_Vertices.Clear();
Profiler.EndSample();
}
// Set mesh to CanvasRenderer.
Profiler.BeginSample("Set mesh and texture to CanvasRenderer");
canvasRenderer.SetMesh(_mesh);
canvasRenderer.SetTexture(mainTexture);
Profiler.EndSample();
}
}
catch (System.Exception e)
{
Debug.LogException(e);
}
}
/// <summary>
/// Update meshe.
/// </summary>
void UpdateMesh()
{
try
{
Profiler.BeginSample("CheckTrail");
CheckTrail();
Profiler.EndSample();
if (m_ParticleSystem && canvas)
{
var rootCanvas = canvas.rootCanvas;
Profiler.BeginSample("Disable ParticleSystemRenderer");
if (Application.isPlaying)
{
_renderer.enabled = false;
}
Profiler.EndSample();
Profiler.BeginSample("Make Matrix");
scaleaMatrix = m_ParticleSystem.main.scalingMode == ParticleSystemScalingMode.Hierarchy
? Matrix4x4.Scale(scale * Vector3.one)
: Matrix4x4.Scale(scale * rootCanvas.transform.localScale);
Matrix4x4 matrix = default(Matrix4x4);
switch (m_ParticleSystem.main.simulationSpace)
{
case ParticleSystemSimulationSpace.Local:
matrix =
scaleaMatrix
* Matrix4x4.Rotate(m_ParticleSystem.transform.rotation).inverse
*Matrix4x4.Scale(m_ParticleSystem.transform.lossyScale).inverse;
break;
case ParticleSystemSimulationSpace.World:
matrix =
scaleaMatrix
* m_ParticleSystem.transform.worldToLocalMatrix;
break;
case ParticleSystemSimulationSpace.Custom:
break;
}
Profiler.EndSample();
_mesh.Clear();
if (0 < m_ParticleSystem.particleCount)
{
Profiler.BeginSample("Bake Mesh");
// If current scene is prefab mode, prevent create OverlayCamera.
#if UNITY_2018_3_OR_NEWER && UNITY_EDITOR
var prefabStage = UnityEditor.Experimental.SceneManagement.PrefabStageUtility.GetCurrentPrefabStage();
if (prefabStage != null && prefabStage.scene != null && prefabStage.scene.isLoaded)
{
return;
}
#endif
var cam = rootCanvas.renderMode == RenderMode.ScreenSpaceOverlay
? UIParticleOverlayCamera.GetCameraForOvrelay(rootCanvas)
: canvas.worldCamera ?? Camera.main;
if (!cam)
{
return;
}
if (m_IsTrail)
{
_renderer.BakeTrailsMesh(_mesh, cam, true);
}
else
{
_renderer.BakeMesh(_mesh, cam, true);
}
Profiler.EndSample();
// Apply matrix.
Profiler.BeginSample("Apply matrix to position");
_mesh.GetVertices(s_Vertices);
var count = s_Vertices.Count;
for (int i = 0; i < count; i++)
{
s_Vertices [i] = matrix.MultiplyPoint3x4(s_Vertices [i]);
}
_mesh.SetVertices(s_Vertices);
s_Vertices.Clear();
Profiler.EndSample();
}
// Set mesh to CanvasRenderer.
Profiler.BeginSample("Set mesh and texture to CanvasRenderer");
canvasRenderer.SetMesh(_mesh);
canvasRenderer.SetTexture(mainTexture);
Profiler.EndSample();
}
}
catch (System.Exception e)
{
Debug.LogException(e);
}
}