static GameObject CreateLeafBillboard(float leafSize, Material leafMaterial)
{
GameObject leafBillboard = new GameObject("Leaf");
leafBillboard.AddComponent <MeshRenderer>().sharedMaterial = leafMaterial;
leafBillboard.AddComponent <MeshFilter>().sharedMesh = ProceduralMeshes.CreateXZPlane(leafSize, leafSize, 1, 1, new Vector3(-leafSize, 0, leafSize * 0.5f));
return(leafBillboard);
}
void OnEnable()
{
#if UNITY_EDITOR
capsuleMesh = ProceduralMeshes.GenerateCapsule(Height, Radius);
#endif
}
static void CreateSegment(
int segmentAxisSamples,
int segmentRadialSamples,
float segmentWidth,
float segmentHeight,
bool narrowBranches,
Material trunkMaterial,
Turtle turtle,
int nestingLevel,
ref Mesh currentMesh,
ref int chunkCount,
GameObject trunk,
Dictionary <int, Mesh> segmentsCache)
{
Vector3[] newVertices;
Vector3[] newNormals;
Vector2[] newUVs;
int[] newIndices;
Mesh segment;
if (segmentsCache.ContainsKey(nestingLevel))
{
segment = segmentsCache[nestingLevel];
}
else
{
float thickness = (narrowBranches) ? segmentWidth * (0.5f / (nestingLevel + 1)) : segmentWidth * 0.5f;
segment = ProceduralMeshes.CreateCylinder(segmentAxisSamples, segmentRadialSamples, thickness, segmentHeight);
segmentsCache[nestingLevel] = segment;
}
newVertices = segment.vertices;
newNormals = segment.normals;
newUVs = segment.uv;
newIndices = segment.triangles;
if (currentMesh.vertices.Length + newVertices.Length > 65000)
{
CreateNewChunk(currentMesh, ref chunkCount, trunkMaterial, trunk);
currentMesh = new Mesh();
}
int numVertices = currentMesh.vertices.Length + newVertices.Length;
int numTriangles = currentMesh.triangles.Length + newIndices.Length;
Vector3[] vertices = new Vector3[numVertices];
Vector3[] normals = new Vector3[numVertices];
int[] indices = new int[numTriangles];
Vector2[] uvs = new Vector2[numVertices];
Array.Copy(currentMesh.vertices, 0, vertices, 0, currentMesh.vertices.Length);
Array.Copy(currentMesh.normals, 0, normals, 0, currentMesh.normals.Length);
Array.Copy(currentMesh.triangles, 0, indices, 0, currentMesh.triangles.Length);
Array.Copy(currentMesh.uv, 0, uvs, 0, currentMesh.uv.Length);
int offset = currentMesh.vertices.Length;
for (int i = 0; i < newVertices.Length; i++)
{
vertices[offset + i] = turtle.position + (turtle.direction * newVertices[i]);
}
int trianglesOffset = currentMesh.vertices.Length;
offset = currentMesh.triangles.Length;
for (int i = 0; i < newIndices.Length; i++)
{
indices[offset + i] = (trianglesOffset + newIndices[i]);
}
Array.Copy(newNormals, 0, normals, currentMesh.normals.Length, newNormals.Length);
Array.Copy(newUVs, 0, uvs, currentMesh.uv.Length, newUVs.Length);
currentMesh.vertices = vertices;
currentMesh.normals = normals;
currentMesh.triangles = indices;
currentMesh.uv = uvs;
currentMesh.Optimize();
}
