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去掉obi，使用自写绳索

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BobSong
2026-02-23 20:51:03 +08:00
parent cb636f862d
commit 91e2309eeb
2011 changed files with 2593 additions and 190578 deletions
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164
Assets/Obi/Scripts/Common/Rendering/ParticleImpostorRendering.cs
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using UnityEngine;
using Unity.Profiling;
using System.Collections;
using System.Collections.Generic;
namespace Obi
{
public class ParticleImpostorRendering
{
static ProfilerMarker m_ParticlesToMeshPerfMarker = new ProfilerMarker("ParticlesToMesh");
private List<Mesh> meshes = new List<Mesh>();
private List<Vector3> vertices = new List<Vector3>(4000);
private List<Vector3> normals = new List<Vector3>(4000);
private List<Color> colors = new List<Color>(4000);
private List<int> triangles = new List<int>(6000);
private List<Vector4> anisotropy1 = new List<Vector4>(4000);
private List<Vector4> anisotropy2 = new List<Vector4>(4000);
private List<Vector4> anisotropy3 = new List<Vector4>(4000);
int particlesPerDrawcall = 0;
int drawcallCount;
private Vector3 particleOffset0 = new Vector3(1, 1, 0);
private Vector3 particleOffset1 = new Vector3(-1, 1, 0);
private Vector3 particleOffset2 = new Vector3(-1, -1, 0);
private Vector3 particleOffset3 = new Vector3(1, -1, 0);
public IEnumerable<Mesh> Meshes
{
get { return meshes.AsReadOnly(); }
}
private void Apply(Mesh mesh)
{
mesh.Clear();
mesh.SetVertices(vertices);
mesh.SetNormals(normals);
mesh.SetColors(colors);
mesh.SetUVs(0, anisotropy1);
mesh.SetUVs(1, anisotropy2);
mesh.SetUVs(2, anisotropy3);
mesh.SetTriangles(triangles, 0, true);
}
public void ClearMeshes()
{
foreach (Mesh mesh in meshes)
GameObject.DestroyImmediate(mesh);
meshes.Clear();
}
public void UpdateMeshes(IObiParticleCollection collection, bool[] visible = null, Color[] tint = null)
{
using (m_ParticlesToMeshPerfMarker.Auto())
{
// figure out the size of our drawcall arrays:
particlesPerDrawcall = Constants.maxVertsPerMesh / 4;
drawcallCount = collection.activeParticleCount / particlesPerDrawcall + 1;
particlesPerDrawcall = Mathf.Min(particlesPerDrawcall, collection.activeParticleCount);
// If the amount of meshes we need to draw the particles has changed:
if (drawcallCount != meshes.Count)
{
// Re-generate meshes:
ClearMeshes();
for (int i = 0; i < drawcallCount; i++)
{
Mesh mesh = new Mesh();
mesh.name = "Particle impostors";
mesh.hideFlags = HideFlags.HideAndDontSave;
meshes.Add(mesh);
}
}
Vector3 position;
Vector4 basis1 = new Vector4(1, 0, 0, 0);
Vector4 basis2 = new Vector4(0, 1, 0, 0);
Vector4 basis3 = new Vector4(0, 0, 1, 0);
Color color;
int visibleLength = visible != null ? visible.Length : 0;
int tintLength = tint != null ? tint.Length : 0;
//Convert particle data to mesh geometry:
for (int i = 0; i < drawcallCount; i++)
{
// Clear all arrays
vertices.Clear();
normals.Clear();
colors.Clear();
triangles.Clear();
anisotropy1.Clear();
anisotropy2.Clear();
anisotropy3.Clear();
int index = 0;
int limit = Mathf.Min((i + 1) * particlesPerDrawcall, collection.activeParticleCount);
for (int j = i * particlesPerDrawcall; j < limit; ++j)
{
if (j < visibleLength && !visible[j])
continue;
int runtimeIndex = collection.GetParticleRuntimeIndex(j);
position = collection.GetParticlePosition(runtimeIndex);
collection.GetParticleAnisotropy(runtimeIndex, ref basis1, ref basis2, ref basis3);
color = collection.GetParticleColor(runtimeIndex);
if (j < tintLength)
color *= tint[j];
vertices.Add(position);
vertices.Add(position);
vertices.Add(position);
vertices.Add(position);
normals.Add(particleOffset0);
normals.Add(particleOffset1);
normals.Add(particleOffset2);
normals.Add(particleOffset3);
colors.Add(color);
colors.Add(color);
colors.Add(color);
colors.Add(color);
anisotropy1.Add(basis1);
anisotropy1.Add(basis1);
anisotropy1.Add(basis1);
anisotropy1.Add(basis1);
anisotropy2.Add(basis2);
anisotropy2.Add(basis2);
anisotropy2.Add(basis2);
anisotropy2.Add(basis2);
anisotropy3.Add(basis3);
anisotropy3.Add(basis3);
anisotropy3.Add(basis3);
anisotropy3.Add(basis3);
triangles.Add(index + 2);
triangles.Add(index + 1);
triangles.Add(index);
triangles.Add(index + 3);
triangles.Add(index + 2);
triangles.Add(index);
index += 4;
}
Apply(meshes[i]);
}
}
}
}
}