private static BigCombineInstance MakeInstance(CapsuleCollider c, Bounds bounds)
{
BigCombineInstance ci = new BigCombineInstance();
ci.transform = c.gameObject.transform.localToWorldMatrix;
ci.bigMesh = new BigMesh(PrimitiveType.Capsule);
Vector3 dir = Vector3.forward;
if (c.direction == 0)
{
dir = Vector3.right;
}
else if (c.direction == 1)
{
dir = Vector3.up;
}
ci.transform = ci.transform * Matrix4x4.TRS(
c.center,
Quaternion.FromToRotation(Vector3.up, dir),
new Vector3(
c.radius / 0.5f,
(c.height + 2 * c.radius) / 3,
c.radius / 0.5f));
return(ci);
}
private static BigCombineInstance MakeInstance(MeshCollider c, Bounds bounds)
{
Mesh m = c.sharedMesh;
BigCombineInstance ci = new BigCombineInstance();
ci.bigMesh = new BigMesh(m);
ci.transform = c.gameObject.transform.localToWorldMatrix;
return(ci);
}
private static BigCombineInstance MakeInstance(SphereCollider c, Bounds bounds)
{
BigCombineInstance ci = new BigCombineInstance();
ci.transform = c.gameObject.transform.localToWorldMatrix;
ci.bigMesh = new BigMesh(PrimitiveType.Sphere);
ci.transform = ci.transform * Matrix4x4.TRS(
c.center,
Quaternion.identity,
Vector3.one * c.radius / 0.5f);
return(ci);
}
private static BigCombineInstance MakeInstance(BoxCollider c, Bounds bounds)
{
BigCombineInstance ci = new BigCombineInstance();
ci.transform = c.gameObject.transform.localToWorldMatrix;
ci.bigMesh = new BigMesh(PrimitiveType.Cube);
ci.transform = ci.transform * Matrix4x4.TRS(
c.center,
Quaternion.identity,
c.extents * 2);
return(ci);
}
private static BigCombineInstance MakeInstance(TerrainCollider c, Bounds bounds)
{
Bounds localBounds = new Bounds(
bounds.center - c.transform.position,
bounds.size);
BigCombineInstance ci = new BigCombineInstance();
ci.bigMesh = new BigMesh(((TerrainCollider)c).terrainData, localBounds);
ci.transform = Matrix4x4.TRS(
c.transform.position,
Quaternion.identity,
Vector3.one);
return(ci);
}
public BigMesh(BigCombineInstance[] instances)
{
int numVerts = 0;
int numIndices = 0;
foreach(BigCombineInstance bci in instances)
{
numVerts += bci.bigMesh.vertices.Length;
numIndices += bci.bigMesh.triangles.Length;
}
this.vertices = new Vector3[numVerts];
this.triangles = new int[numIndices];
int vertBase = 0;
int indexBase = 0;
foreach (BigCombineInstance bci in instances)
{
Vector3[] vertIn = bci.bigMesh.vertices;
for (int iv = 0; iv < vertIn.Length; iv++)
vertices[vertBase + iv] =
bci.transform.MultiplyPoint3x4(vertIn[iv]);
int[] triIn = bci.bigMesh.triangles;
for (int ii=0; ii<triIn.Length; ii++)
triangles[indexBase + ii] = triIn[ii] + vertBase;
vertBase += bci.bigMesh.vertices.Length;
indexBase += bci.bigMesh.triangles.Length;
}
}
private static BigCombineInstance MakeInstance(SphereCollider c, Bounds bounds)
{
BigCombineInstance ci = new BigCombineInstance();
ci.transform = c.gameObject.transform.localToWorldMatrix;
ci.bigMesh = new BigMesh(PrimitiveType.Sphere);
ci.transform = ci.transform * Matrix4x4.TRS(
c.center,
Quaternion.identity,
Vector3.one * c.radius / 0.5f);
return ci;
}
private static BigCombineInstance MakeInstance(CapsuleCollider c, Bounds bounds)
{
BigCombineInstance ci = new BigCombineInstance();
ci.transform = c.gameObject.transform.localToWorldMatrix;
ci.bigMesh = new BigMesh(PrimitiveType.Capsule);
Vector3 dir = Vector3.forward;
if (c.direction == 0)
dir = Vector3.right;
else if (c.direction == 1)
dir = Vector3.up;
ci.transform = ci.transform * Matrix4x4.TRS(
c.center,
Quaternion.FromToRotation(Vector3.up, dir),
new Vector3(
c.radius / 0.5f,
(c.height + 2 * c.radius) / 3,
c.radius / 0.5f));
return ci;
}
private static BigCombineInstance MakeInstance(BoxCollider c, Bounds bounds)
{
BigCombineInstance ci = new BigCombineInstance();
ci.transform = c.gameObject.transform.localToWorldMatrix;
ci.bigMesh = new BigMesh(PrimitiveType.Cube);
ci.transform = ci.transform * Matrix4x4.TRS(
c.center,
Quaternion.identity,
c.extents * 2);
return ci;
}
private static BigCombineInstance MakeInstance(TerrainCollider c, Bounds bounds)
{
Bounds localBounds = new Bounds(
bounds.center - c.transform.position,
bounds.size);
BigCombineInstance ci = new BigCombineInstance();
ci.bigMesh = new BigMesh(((TerrainCollider)c).terrainData, localBounds);
ci.transform = Matrix4x4.TRS(
c.transform.position,
Quaternion.identity,
Vector3.one);
return ci;
}
private static BigCombineInstance MakeInstance(MeshCollider c, Bounds bounds)
{
Mesh m = c.sharedMesh;
BigCombineInstance ci = new BigCombineInstance();
ci.bigMesh = new BigMesh(m);
ci.transform = c.gameObject.transform.localToWorldMatrix;
return ci;
}
