public void LateUpdate()
{
// if (mpb==null) {
// mpb = new MaterialPropertyBlock ();
// mpb.AddColor("_Color",color);
// }
if (mesh != null)
{
//if the sim changes data topology
if (this.particleNumCache != sim.numberOfParticles() || this.stringNumCache != sim.numberOfSprings())
{
//Debug.Log(this.particleNumCache);
//Debug.Log(sim.numberOfParticles());
mesh.Clear();
CreateMesh();
this.particleNumCache = sim.numberOfParticles();
this.stringNumCache = sim.numberOfSprings();
}
else
{
if (sim.numberOfParticles() > 2)
{
if (Application.isPlaying)
{
mesh.vertices = sim.getVerticesNonAlloc();
}
else
{
mesh.vertices = sim.getVertices();
}
mesh.RecalculateBounds();
}
//
else
{
}
}
}
else
{
mesh = new Mesh();
CreateMesh();
this.meshFilter.sharedMesh = this.mesh;
this.particleNumCache = sim.numberOfParticles();
this.stringNumCache = sim.numberOfSprings();
}
if (color != colorCache)
{
SetColor(color);
colorCache = color;
}
}
//called by editor script to set up data
public void MeshLineRender_Ctor()
{
this.sim = this.GetComponent <IFormLayer>().GetSimulation;
this.particleNumCache = sim.numberOfParticles();
this.stringNumCache = sim.numberOfSprings();
meshRenderer = this.GetComponent <MeshRenderer>();
if (meshRenderer == null)
{
meshRenderer = this.gameObject.AddComponent <MeshRenderer>();
}
meshRenderer.receiveShadows = false;
meshRenderer.shadowCastingMode = UnityEngine.Rendering.ShadowCastingMode.Off;
meshRenderer.useLightProbes = false;
meshRenderer.reflectionProbeUsage = UnityEngine.Rendering.ReflectionProbeUsage.Off;
meshRenderer.sharedMaterial = Mtl;
meshRenderer.hideFlags = HideFlags.HideInInspector;
mpb = new MaterialPropertyBlock();
meshRenderer.GetPropertyBlock(mpb);
mpb.SetColor("_Color", color);
meshRenderer.SetPropertyBlock(mpb);
colorCache = color;
if (mesh == null)
{
mesh = new Mesh();
CreateMesh();
this.particleNumCache = sim.numberOfParticles();
this.stringNumCache = sim.numberOfSprings();
}
meshFilter = this.GetComponent <MeshFilter>();
if (meshFilter == null)
{
meshFilter = this.gameObject.AddComponent <MeshFilter>();
}
meshFilter.sharedMesh = mesh;
meshFilter.hideFlags = HideFlags.HideInInspector;
}
public SimBuffer_Spring(Simulation sim, Vector2[] particleUV, int width, int height)
{
this.sim = sim;
rt = new RenderTexture[sim.maxSpringConvergenceID];
int parNum = sim.numberOfParticles();
ID_SpringParamRT = Shader.PropertyToID("_SpringParamRT");
ID_SpringConstant = Shader.PropertyToID("_SpringConstant");
ID_PositionRT = Shader.PropertyToID("_PositionRT");
//rg = the other end point's uv, b = restlength, a = state
Color[] tempColor = new Color[width * height];
Texture2D tempTex = new Texture2D(width, height, TextureFormat.RGBAFloat, false, false);
for (int i = 0; i < sim.maxSpringConvergenceID; i++)
{
//init rt
rt[i] = new RenderTexture(width, height, 0, RTFormat.ARGB);
rt[i].Create();
//prepare temp color
for (int k = 0; k < width * height; k++)
{
if (k < parNum)
{
Vector2 uv = particleUV[k];
tempColor[k] = new Color(uv.x, uv.y, 1f, (sim.getParticle(k).IsFree) ? 1f : 0f);
}
else
{
tempColor[k] = new Color(0f, 0f, 1f, 0f);
}
}
//get info
for (int j = 0; j < sim.numberOfSprings(); j++)
{
Spring2D sp = sim.getSpring(j);
if (sp.convergenceGroupID == i + 1)
{
int a = sim.getParticleIndex(sp.ParticleA);
int b = sim.getParticleIndex(sp.ParticleB);
tempColor[a].r = particleUV[b].x;
tempColor[a].g = particleUV[b].y;
tempColor[a].b = sp.restLength2;
tempColor[a].a = (sp.ParticleA.IsFree) ? 1f : 0f;
tempColor[b].r = particleUV[a].x;
tempColor[b].g = particleUV[a].y;
tempColor[b].b = sp.restLength2;
tempColor[b].a = (sp.ParticleB.IsFree) ? 1f : 0f;
}
}
//blit
tempTex.SetPixels(tempColor);
tempTex.Apply();
Graphics.Blit(tempTex, rt[i]);
}
Extension.ObjDestroy(tempTex);
//mpb
mpb = new MaterialPropertyBlock[sim.maxSpringConvergenceID];
for (int i = 0; i < sim.maxSpringConvergenceID; i++)
{
mpb[i] = new MaterialPropertyBlock();
mpb[i].SetTexture(ID_SpringParamRT, rt[i]);
mpb[i].SetFloat(ID_SpringConstant, sim.Settings.springConstant);
}
//tempRT
tempRT = new RenderTexture[sim.maxSpringConvergenceID - 1];
}
