public static bool GenerateHemisphereVertices(Vector3 diameterXYZ, Matrix4x4 transform, int horzSegments, int vertSegments, ref Vector3[] vertices)
{
var bottomCap = true;
var topCap = false;
var extraVertices = ((!bottomCap) ? 1 : 0) + ((!topCap) ? 1 : 0);
var rings = (vertSegments) + (topCap ? 1 : 0);
var vertexCount = (horzSegments * rings) + extraVertices;
var topVertex = 0;
var bottomVertex = (!topCap) ? 1 : 0;
var radius = new Vector3(diameterXYZ.x * 0.5f,
diameterXYZ.y,
diameterXYZ.z * 0.5f);
if (vertices == null ||
vertices.Length != vertexCount)
{
vertices = new Vector3[vertexCount];
}
if (!topCap)
{
vertices[topVertex] = transform.MultiplyPoint(Vector3.up * radius.y); // top
}
if (!bottomCap)
{
vertices[bottomVertex] = transform.MultiplyPoint(Vector3.zero); // bottom
}
var degreePerSegment = (360.0f / horzSegments) * Mathf.Deg2Rad;
var angleOffset = ((horzSegments & 1) == 1) ? 0.0f : 0.5f * degreePerSegment;
var vertexIndex = extraVertices;
{
for (int h = 0; h < horzSegments; h++, vertexIndex++)
{
var hRad = (h * degreePerSegment) + angleOffset;
vertices[vertexIndex] = transform.MultiplyPoint(new Vector3(Mathf.Cos(hRad) * radius.x,
0.0f,
Mathf.Sin(hRad) * radius.z));
}
}
for (int v = 1; v < rings; v++)
{
var segmentFactor = ((v - (rings / 2.0f)) / rings) + 0.5f; // [0.0f ... 1.0f]
var segmentDegree = (segmentFactor * 90); // [0 .. 90]
var segmentHeight = Mathf.Sin(segmentDegree * Mathf.Deg2Rad) * radius.y;
var segmentRadius = Mathf.Cos(segmentDegree * Mathf.Deg2Rad); // [0 .. 0.707 .. 1 .. 0.707 .. 0]
for (int h = 0; h < horzSegments; h++, vertexIndex++)
{
vertices[vertexIndex].x = vertices[h + extraVertices].x * segmentRadius;
vertices[vertexIndex].y = segmentHeight;
vertices[vertexIndex].z = vertices[h + extraVertices].z * segmentRadius;
}
}
return(true);
}
private bool RayCastMulti(MeshQuery[] meshQuery, // TODO: add meshquery support here
Vector3 worldRayStart,
Vector3 worldRayEnd,
Matrix4x4 treeLocalToWorldMatrix,
int filterLayerParameter0,
out CSGTreeBrushIntersection[] intersections,
CSGTreeNode[] ignoreNodes = null)
{
intersections = null;
Int32 intersectionCount = 0;
var ignoreNodeIDsHandle = (ignoreNodes != null) ? GCHandle.Alloc(ignoreNodes, GCHandleType.Pinned) : new GCHandle();
{
var ignoreNodeIDsPtr = (ignoreNodes != null) ? ignoreNodeIDsHandle.AddrOfPinnedObject() : IntPtr.Zero;
var workAround = Matrix4x4.identity;
intersectionCount = RayCastIntoTreeMultiCount(treeNodeID,
ref worldRayStart,
ref worldRayEnd,
ref workAround,
filterLayerParameter0, // TODO: implement this properly with MeshQuery
true, // TODO: implement this properly with MeshQuery
ignoreNodeIDsPtr,
(ignoreNodes == null) ? 0 : ignoreNodes.Length);
}
if (ignoreNodeIDsHandle.IsAllocated)
{
ignoreNodeIDsHandle.Free();
}
if (intersectionCount > 0)
{
var outputIntersections = new CSGTreeBrushIntersection[intersectionCount];
var outputIntersectionsHandle = GCHandle.Alloc(outputIntersections, GCHandleType.Pinned);
{
var outputIntersectionsPtr = outputIntersectionsHandle.AddrOfPinnedObject();
var result = RayCastMultiGet(intersectionCount, outputIntersectionsPtr);
if (result)
{
intersections = outputIntersections;
}
else
{
intersections = null;
}
}
for (int i = 0; i < intersectionCount; i++)
{
outputIntersections[i].surfaceIntersection.worldPlane = treeLocalToWorldMatrix.TransformPlane(outputIntersections[i].surfaceIntersection.worldPlane);
outputIntersections[i].surfaceIntersection.worldIntersection = treeLocalToWorldMatrix.MultiplyPoint(outputIntersections[i].surfaceIntersection.worldIntersection);
}
outputIntersectionsHandle.Free();
}
return(intersections != null);
}
static bool GetExtrudedVertices(Vector2[] shapeVertices, Matrix4x4 matrix0, Matrix4x4 matrix1, out Vector3[] vertices)
{
var pathSegments = 2;
var shapeSegments = shapeVertices.Length;
var vertexCount = shapeSegments * pathSegments;
vertices = new Vector3[vertexCount];
for (int s = 0; s < shapeSegments; s++)
{
vertices[s] = matrix0.MultiplyPoint(shapeVertices[s]);
vertices[shapeSegments + s] = matrix1.MultiplyPoint(shapeVertices[s]);
}
return(true);
}
/** Calc
*/
public void Calc(UnityEngine.Camera a_look_camera, UnityEngine.Transform a_look_transform)
{
//worldToCameraMatrix
this.raw_camera.worldToCameraMatrix = a_look_camera.worldToCameraMatrix * this.matrix;
//projectionMatrix
{
UnityEngine.Matrix4x4 t_mirror_camera_matrix = this.raw_camera.worldToCameraMatrix;
UnityEngine.Vector4 t_mirror_clip_plane;
{
UnityEngine.Vector3 t_pos = -this.plane_normal * this.plane_distance;
UnityEngine.Vector3 t_mirror_position = t_mirror_camera_matrix.MultiplyPoint(t_pos);
UnityEngine.Vector3 t_mirror_normal = t_mirror_camera_matrix.MultiplyVector(this.plane_normal).normalized;
t_mirror_clip_plane = new UnityEngine.Vector4(t_mirror_normal.x, t_mirror_normal.y, t_mirror_normal.z, -UnityEngine.Vector3.Dot(t_mirror_position, t_mirror_normal));
}
this.raw_camera.projectionMatrix = a_look_camera.CalculateObliqueMatrix(t_mirror_clip_plane);
}
//position
{
this.raw_camera.transform.position = this.matrix.MultiplyPoint(a_look_transform.position);
}
//rotation
{
UnityEngine.Vector3 t_up = this.matrix_rotate.MultiplyPoint(a_look_transform.up).normalized;
UnityEngine.Vector3 t_forward = this.matrix_rotate.MultiplyPoint(a_look_transform.forward).normalized;
UnityEngine.Vector3 t_right = UnityEngine.Vector3.Cross(t_up, t_forward);
UnityEngine.Matrix4x4 t_matrix = new UnityEngine.Matrix4x4(
new UnityEngine.Vector4(t_right.x, t_right.y, t_right.z, 0.0f),
new UnityEngine.Vector4(t_up.x, t_up.y, t_up.z, 0.0f),
new UnityEngine.Vector4(t_forward.x, t_forward.y, t_forward.z, 0.0f),
new UnityEngine.Vector4(0.0f, 0.0f, 0.0f, 1.0f)
);
this.raw_camera.transform.rotation = t_matrix.rotation;
}
}
/// <inheritdoc /> protected virtual UnityEngine.Vector3 CoordinateToWorldSpace(UnityEngine.Vector3 vector) => worldMatrix.MultiplyPoint(vector);
public static bool GenerateHemisphereSubMesh(CSGBrushSubMesh subMesh, Vector3 diameterXYZ, Matrix4x4 transform, int horzSegments, int vertSegments, CSGSurfaceAsset[] surfaceAssets, SurfaceDescription[] surfaceDescriptions)
{
if (diameterXYZ.x == 0 ||
diameterXYZ.y == 0 ||
diameterXYZ.z == 0)
{
subMesh.Clear();
return(false);
}
var bottomCap = true;
var topCap = false;
var extraVertices = ((!bottomCap) ? 1 : 0) + ((!topCap) ? 1 : 0);
var rings = (vertSegments) + (topCap ? 1 : 0);
var vertexCount = (horzSegments * rings) + extraVertices;
var topVertex = 0;
var bottomVertex = (!topCap) ? 1 : 0;
var radius = new Vector3(diameterXYZ.x * 0.5f,
diameterXYZ.y,
diameterXYZ.z * 0.5f);
var heightY = radius.y;
float topY, bottomY;
if (heightY < 0)
{
topY = 0;
bottomY = heightY;
}
else
{
topY = heightY;
bottomY = 0;
}
var vertices = new Vector3[vertexCount];
if (!topCap)
{
vertices[topVertex] = transform.MultiplyPoint(Vector3.up * topY); // top
}
if (!bottomCap)
{
vertices[bottomVertex] = transform.MultiplyPoint(Vector3.up * bottomY); // bottom
}
var degreePerSegment = (360.0f / horzSegments) * Mathf.Deg2Rad;
var angleOffset = ((horzSegments & 1) == 1) ? 0.0f : 0.5f * degreePerSegment;
var vertexIndex = extraVertices;
if (heightY < 0)
{
for (int h = horzSegments - 1; h >= 0; h--, vertexIndex++)
{
var hRad = (h * degreePerSegment) + angleOffset;
vertices[vertexIndex] = transform.MultiplyPoint(new Vector3(Mathf.Cos(hRad) * radius.x,
0.0f,
Mathf.Sin(hRad) * radius.z));
}
}
else
{
for (int h = 0; h < horzSegments; h++, vertexIndex++)
{
var hRad = (h * degreePerSegment) + angleOffset;
vertices[vertexIndex] = transform.MultiplyPoint(new Vector3(Mathf.Cos(hRad) * radius.x,
0.0f,
Mathf.Sin(hRad) * radius.z));
}
}
for (int v = 1; v < rings; v++)
{
var segmentFactor = ((v - (rings / 2.0f)) / rings) + 0.5f; // [0.0f ... 1.0f]
var segmentDegree = (segmentFactor * 90); // [0 .. 90]
var segmentHeight = Mathf.Sin(segmentDegree * Mathf.Deg2Rad) * heightY;
var segmentRadius = Mathf.Cos(segmentDegree * Mathf.Deg2Rad); // [0 .. 0.707 .. 1 .. 0.707 .. 0]
for (int h = 0; h < horzSegments; h++, vertexIndex++)
{
vertices[vertexIndex].x = vertices[h + extraVertices].x * segmentRadius;
vertices[vertexIndex].y = segmentHeight;
vertices[vertexIndex].z = vertices[h + extraVertices].z * segmentRadius;
}
}
return(GenerateSegmentedSubMesh(subMesh, horzSegments, vertSegments, vertices, bottomCap, topCap, bottomVertex, topVertex, surfaceAssets, surfaceDescriptions));
}