private string GetShapeCode(SDFShape shape, string parentPosition)
{
Vector3 offset = shape.transform.localPosition;
Vector3 up = shape.transform.localRotation * Vector3.up;
// Vector3 right = shape.transform.localRotation * Vector3.right;
// Vector3 forward = shape.transform.localRotation * Vector3.forward;
Vector3 parameters = shape.GetParameters();
switch (shape.shapeType)
{
case SDFShape.ShapeType.Plane:
return("dot(" + parentPosition + " - " + ConstructVariable(offset) + ", " + ConstructVariable(up) + ")");
case SDFShape.ShapeType.FracturedPlane:
//return "wsPos.y + (clamp(wsPos.x, 0.0, 2.0) * 0.05 + clamp(wsPos.z + .5, 0.0, 1.0) * .1)";
return("frPlane(wsPos)");
case SDFShape.ShapeType.Sphere:
return("length(wsPos) - .5");
case SDFShape.ShapeType.Cube:
return("fBox(wsPos," + ConstructVariable(shape.GetParameters()) + ")");
case SDFShape.ShapeType.Cylinder:
return("fCylinder(wsPos, " + ConstructVariable(parameters.x) + "," + ConstructVariable(parameters.y) + ")");
}
return("0.0"); // Worst case
}
private void BuildNodeTree(GameObject go, List <Node> nodeList, int depth)
{
if (!go.activeInHierarchy)
{
return;
}
SDFOperation op = go.GetComponent <SDFOperation>();
SDFShape shape = go.GetComponent <SDFShape>();
Vector3 scale = go.transform.localScale;
if (shape)
{
scale = GetShapeLocalScale(shape);
}
Node node = new Node();
node.transform = Matrix4x4.TRS(go.transform.localPosition, go.transform.localRotation, scale).inverse;
node.type = 0;
node.depth = depth;
node.domainDistortionType = 0;
node.domainDistortion = Vector3.one;
node.bias = 1f;
if (op)
{
node.type = 0;
node.parameters = (int)op.operationType;
node.domainDistortionType = (int)op.distortionType;
node.domainDistortion = op.domainRepeat; // For now...
node.bias = 1f;
}
else if (shape)
{
node.type = 1;
node.parameters = (int)shape.shapeType;
node.domainDistortion = shape.GetParameters();
node.bias = shape.sdfBias;
}
nodeList.Add(node);
foreach (Transform child in go.transform)
{
BuildNodeTree(child.gameObject, nodeList, depth + 1);
}
}