For the next part that I will create will be a simple roller coaster scene, the techniques that I will be using as follows:

• Working with splines (Vertex,weld etc)
• Path constraints animations
• Lofting

I start of by creating a simple spline, the spline that I will use for the first part of the scene is an "Ellipse", and looking at the top view port I created the spline of any size and then went into the modify panel and set the values to length: 400 and the width: 160.

I then changed the offset of the ellipse and made the X Y Z postions to "0".

For the next part I have created a "Circle" in the left viewport making the radius 44.

The next thing I wanted to do was to move the circle to the right of the ellipse for this I just had to do a simple calculation by just putting 0 in the Y position value as the ellipse is already centred earlier. To centre the cirlcle on the ellipse I would just enter 80 in the X value postion as the width of the ellipse was 160, and now to align the Z axis I would just enter 44 because I set the radius of the circle as 44.

I then changed the vertices, for this I changed the ellipse and converted it to editbale spline. Looking at the top viewport I selected the right red dot on the ellipse then right clicked and selected "break vertices" this will break the single vertex into two vertices, the by zooming in I selected the vertices and moved them to see if it has worked. The next step I did was to select the select the left vertex and changed the X axis to 35 and the right vertext to 45 and in the Y and Z axis to 0.

I then used the same technique on the cirlce and changed the vertex to the measurement above but looking at the left viewport. I then unselected the vertex and then went into geometry and attached both the circle and the ellipse together. I then selected the Vertex sub-object level and then clicked the red dotted button. Then in the weld field I changed the value to 1 and clicked weld.

The ellipse was then renamed to main path so I would not be confused in the next stages.

Now I have created the path I now will need to create the shape, to create the shape I selected the front viewport I zoomed in and created a circle at radius of 1. I then selected it and chose move tool , and made its copy by holding down shift key and moving the object, and clicked OK on the dialogue box that appeared and made sure the instance option was highlighted. I then made another copy so there are 3 circles altogther.

Then I changed the positions of the circles in the XYZ positions:

1. X = 0, Y = 0, Z = 15


2. X = 2.5, Y = 0, Z = 12


3. X = 5, Y = 0, Z = 15

And after this I then converted the circles to editable spline and then going into geometry I attached all 3 circles together and renamed it to Loft shape.

Then I went into the compound objects then selelcted the loft button and selected Loft shape.

I then went into the loft skin parameters and experimented the path steps for a smoother loft.

For the next step is the coaster, this was again simple to create because all I just made was a box of any size then I adjusted the size to how it suited me. To get a better view I used the hide tool to hide all the obejects so I have a better view of the box.

I renamed the box to coaster and converted it to editable poly and the looking at the left viewport I selected the vertex and changed the shape of the box more to look like a coaster.

Coming to the end of this part I clicked Un-hide all and then highlighted the coaster and then went into animations > constraints > path contraints, then chose the target path by clicking H and selecting "main path" and then the coaster jumps onto the track and then going into the motion panel I made some adjustments to it and made sure the follow option was ticked and it was on the Y axis.

Now the coaster will move to the time that I want it to move by using the animation key panel.