public static RenderGeometry CreateCylinderGeometry(float radius, float height, int segmentP, int segmentH, bool smoothH, bool smoothV, float cutAngle = 0, float hollowRatio = 0)
{
StructureGeometry structure = new StructureGeometry();
RenderGeometry.FaceType faceType = GetFaceType(smoothH, smoothV);
float hollowRadius = hollowRatio * radius;
SurfaceComponentGeometry side = SurfaceComponentGeometries.CreateCylinderSideGeometry(radius, height, segmentP, segmentH, cutAngle, false, 1, faceType);
SurfaceComponentGeometry sideInner = null;
if (hollowRatio > 0)
{
sideInner = SurfaceComponentGeometries.CreateCylinderSideGeometry(hollowRadius, height, segmentP, segmentH, cutAngle, true, 1, faceType);
}
SurfaceComponentGeometry upperCap, lowerCap;
if (hollowRatio > 0)
{
upperCap = SurfaceComponentGeometries.CreateRingCapGeometry(radius, hollowRadius, segmentP, 1, cutAngle, 2);
lowerCap = SurfaceComponentGeometries.CreateRingCapGeometry(radius, hollowRadius, segmentP, 1, cutAngle, 2);
}
else if (cutAngle == 0)
{
upperCap = SurfaceComponentGeometries.CreateRegularPolygonGeometry(radius, segmentP, 2);
lowerCap = SurfaceComponentGeometries.CreateRegularPolygonGeometry(radius, segmentP, 2);
}
else
{
upperCap = SurfaceComponentGeometries.CreateFanCapGeometry(radius, segmentP, 1, cutAngle, 2);
lowerCap = SurfaceComponentGeometries.CreateFanCapGeometry(radius, segmentP, 1, cutAngle, 2);
}
lowerCap.ApplyRotation(Quaternion.AngleAxis(cutAngle * Mathf.Rad2Deg, Vector3.up) * Quaternion.AngleAxis(180, Vector3.right));
if (cutAngle == 0)
{
Vertex cornerUp = structure.CreateVertex(new Vector3(radius, height / 2, 0));
Vertex cornerDown = structure.CreateVertex(new Vector3(radius, -height / 2, 0));
if (hollowRatio == 0)
{
structure.CreateFace(side, false, cornerUp, cornerUp, cornerDown, cornerDown);
structure.CreateFace(upperCap, true, cornerUp);
structure.CreateFace(lowerCap, true, cornerDown);
}
else
{
Vertex cornerUpInner = structure.CreateVertex(new Vector3(hollowRadius, height / 2, 0));
Vertex cornerDownInner = structure.CreateVertex(new Vector3(hollowRadius, -height / 2, 0));
structure.CreateFace(side, false, cornerUp, cornerUp, cornerDown, cornerDown);
structure.CreateFace(sideInner, false, cornerDownInner, cornerDownInner, cornerUpInner, cornerUpInner);
structure.CreateFace(upperCap, true, cornerUpInner, cornerUpInner, cornerUp, cornerUp);
structure.CreateFace(lowerCap, true, cornerDownInner, cornerDownInner, cornerDown, cornerDown);
}
}
else
{
SurfaceComponentGeometry wall1 = SurfaceComponentGeometries.CreatePlaneGeometry(1, 1, 1, segmentH, 3);
SurfaceComponentGeometry wall2 = SurfaceComponentGeometries.CreatePlaneGeometry(1, 1, 1, segmentH, 4);
Vertex cornerUp1 = structure.CreateVertex(new Vector3(radius * Mathf.Cos(cutAngle), height / 2, -radius * Mathf.Sin(cutAngle)));
Vertex cornerUp2 = structure.CreateVertex(new Vector3(radius, height / 2, 0));
Vertex cornerDown1 = structure.CreateVertex(new Vector3(radius * Mathf.Cos(cutAngle), -height / 2, -radius * Mathf.Sin(cutAngle)));
Vertex cornerDown2 = structure.CreateVertex(new Vector3(radius, -height / 2, 0));
if (hollowRatio == 0)
{
Vertex cornerUpC = structure.CreateVertex(new Vector3(0, height / 2, 0));
Vertex cornerDownC = structure.CreateVertex(new Vector3(0, -height / 2, 0));
structure.CreateFace(side, false, cornerUp2, cornerUp1, cornerDown1, cornerDown2);
structure.CreateFace(upperCap, true, cornerUp1, cornerUp2, cornerUpC);
structure.CreateFace(lowerCap, true, cornerDown2, cornerDown1, cornerDownC);
structure.CreateFace(wall1, true, cornerUpC, cornerDownC, cornerDown1, cornerUp1);
structure.CreateFace(wall2, true, cornerDownC, cornerUpC, cornerUp2, cornerDown2);
}
else
{
Vertex cornerUp1Inner = structure.CreateVertex(new Vector3(hollowRadius * Mathf.Cos(cutAngle), height / 2, -hollowRadius * Mathf.Sin(cutAngle)));
Vertex cornerUp2Inner = structure.CreateVertex(new Vector3(hollowRadius, height / 2, 0));
Vertex cornerDown1Inner = structure.CreateVertex(new Vector3(hollowRadius * Mathf.Cos(cutAngle), -height / 2, -hollowRadius * Mathf.Sin(cutAngle)));
Vertex cornerDown2Inner = structure.CreateVertex(new Vector3(hollowRadius, -height / 2, 0));
structure.CreateFace(side, false, cornerUp2, cornerUp1, cornerDown1, cornerDown2);
structure.CreateFace(sideInner, false, cornerDown2Inner, cornerDown1Inner, cornerUp1Inner, cornerUp2Inner);
structure.CreateFace(upperCap, true, cornerUp2Inner, cornerUp1Inner, cornerUp1, cornerUp2);
structure.CreateFace(lowerCap, true, cornerDown1Inner, cornerDown2Inner, cornerDown2, cornerDown1);
structure.CreateFace(wall1, true, cornerUp1Inner, cornerDown1Inner, cornerDown1, cornerUp1);
structure.CreateFace(wall2, true, cornerDown2Inner, cornerUp2Inner, cornerUp2, cornerDown2);
}
}
return(structure.Build());
}