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Home: Smoke
Warping an Extended Bicubic Surface
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Warping an Extended Bicubic Surface
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Transforming Multiple Points
Subdividing an Extended Bicubic
Subdivide the bicubic surface to increase the
number of vertices and tangents. Then translate the vertices for
a smaller region of the image for more precision. You should warp
the surface with a small number of subdivisions to obtain the best
results. After applying some deformations to a large portion of
the surface, subdivide the surface further and perform deformations
on a more localized region of the surface.
To
subdivide extended bicubics:
- From
the Extended Bicubic Param2 menu, click Subdivide.
- Transform
the tangents to achieve the effect you want.
To
move the reference point:
- Select
the reference point.
The reference point turns red when selected.
- Drag
the reference point to a new location, or use the X, Y and Z fields
to assign a new coordinate for the reference point.
To
rotate multiple surface points:
- Set
the reference point values you want to use as the axis of origin
using the X, Y, Z Reference Point fields.
- Select
multiple surface points by pressing Ctrl and
dragging to select the surface points.
- From
the Edit Mode box, select Rotate.
A 3D trackball appears on the reference point.
- Use
the 3D trackball to rotate the reference point and selected points.
All selected points rotate around the reference point.
To
scale multiple surface points:
- Set
the reference point values you want to use as the axis of origin
using the X, Y, Z Reference Point fields.
- Select
multiple surface points by pressing Ctrl and
dragging to select the surface points.
- From
the Edit Mode box, select Scale.
- Drag
in a direction in the image window to scale accordingly.