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Maya 3D Tutorial NURBS- curve modeling tool Thu Oct 09, 2014 1:46 am
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Maya 4.0 NURBS Modeling - curve modeling tool
Curve modeling is the use of the contour model curve drawing, the sectional shape of the rotating section or part of the model, by extrusion, to produce the desired rotation or lofting model. Therefore, flexibility is the basis of the curve curve modeling tool modeling in this section will be about the curve modeling tools for detailed Maya.
Controllable point curve tool
Controllable point is a control point type, mainly for shape control curves or surfaces. CV Curve Tool for creating free-form curve after curve is completed, the operator can use the tools of deformation operation.
The number of control points on the curve, the more detrimental to the operation and control curves. For this reason, when you create a curve, it is best to limit the number of control points to a minimum.
To create a curve, you need to switch to Maya Modeling mode menu, shown in Figure 4-6.
Concrete steps to create a curve as follows:
After (a) perform Create → CV Curve Tool \ command, open the Tool Settings dialog box shown in Figure 4-7, make the necessary settings, click the Close button.
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Figure 4-6 Mode Settings dialog box in Figure 4-7 Tool Settings
(2) Hold down the X button, enable the grid absorption features. Click Create the first one control point, the existence of a state of the first control point is a little "empty box", which represents the start position of the curve shown in Figure 4-8.
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The starting point of the curve in Figure 4-8
(3) Click to create the first two points, the existence of the state of the control point is a lowercase letter U, which indicates the direction of the curve. The first two controllable point, once established, is a line connecting the two control points is produced, said this line of Hull curve shown in Figure 4-9.
(4) Click to create the first three control points, so that the first two control points with the first three points of Hull controlled the line will produce. Thus far, a curve is not born, because of a degree of the curve for the three controllable at least four points, shown in Figure 4-10.
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Figure 4-9 The first two points and Hull controlled the first two graphs 4-10 Hull line
(5) Click to create the first four control points, so a connection point of the first one and the last one controllable controllable point of the curve will be generated, as shown in Figure 4-11, press Enter to complete the creation.
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Figure 4-11 to complete the curve
Curve modeling is the use of the contour model curve drawing, the sectional shape of the rotating section or part of the model, by extrusion, to produce the desired rotation or lofting model. Therefore, flexibility is the basis of the curve curve modeling tool modeling in this section will be about the curve modeling tools for detailed Maya.
Changing the shape of the curve
A controllable curve, once completed, the process of being created or being, according to the different needs, you can freely change its shape. Generally moved by deformation tools, rotate or zoom the corresponding control points to change the shape of the curve purposes.
Press Enter to complete before the curve to create, press the Insert key to display a mobile operator, as the default state of the system, the operation is displayed on the last controllable point, shown in Figure 4-12.
The drag operation moves controllable point location, you can change the shape of the curve shown in Figure 4-13. Press the arrow keys on the keyboard can be switched between a controllable point created.
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Figure 4-12 operator to change the shape of the curve in Figure 4-13
In addition, the curve has been completed, the shape of the curve can be changed according to the following methods.
(1) First, Select By Component Type button, click the status bar, enter the object element-level selection mode.
(2) activation Points button, click the right mouse button in the pop-up menu, select NURBS CVs items, shown in Figure 4-14. Or move the mouse pointer to be activated on the curve, click the right mouse button, and from the pop-up menu, select Control Vertex tag command, shown in Figure 4-15.
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Figure 4-14 object element-level selection mode
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Figure 4-15 Select the object element from the marking menu
(3) Select a controllable point of moving objects, activate the Move tool commonly used in the toolbar, it can be rotated or Zoom tool, and then drag operation moves controllable point to change the shape of the curve, as 4- Figure 16.
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Figure 4-16 to change the shape of the curve
Note:
EP Curve Tool usage and CV Curve Tool using the same method.
Curve can be opened and closed intermittently. If the curve is open, the start node and end nodes are not connected together; if the curve is closed, the start node and end node is at the same position, which is called the seam, the contact point can be disconnected the.
Curve modeling is the use of the contour model curve drawing, the sectional shape of the rotating section or part of the model, by extrusion, to produce the desired rotation or lofting model. Therefore, flexibility is the basis of the curve curve modeling tool modeling in this section will be about the curve modeling tools for detailed Maya.
Pencil Curve Tool
Pencil Curve tool (Penil Curve Tool) is similar to a controllable point curve tool and edit points tool, they collectively known as the curve of the three tools. But if you want to create a sketch curves, Pencil Curve Tool is much more convenient than the previous two tools. It constitutes the way just like a piece of paper draw a simple curve, especially when there is a digitizing tablet time.
Execution Curves → Pencil Curve Tool command, in the view of the mouse will become a small pencil shape, moving it to the starting point, and then drag the mouse to draw a sketch curve, shown in Figure 4-17. If you want to terminate the drawing, just release the mouse.
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4-17 with Pencil Curve Tool to draw a graph
Tip:
Modification method curves plotted with Pencil Curve Tool and modify other methods like curve.
Arc tool
Arc tool is introduced in Maya 2.0, is used to create the curve curved segments. It consists of two different types: three-point circular arc (Three Circular Arc) and the two-point circular arc (Two Circular Arc).
First, switch to the Modeling module settings, and then perform Create → Arc Tools → Three Point Circular Arc command in the view, click three times, you can create three control points are circular arcs, thus forming a circular curve shown in Figure 4-18. Press the Enter key on the keyboard will be the end of creation.
Tip:
Generating the arc (e.g. the arc generates a 3:00), the edit points are still necessary to control the arc. First select Modify → Transformation Tools → Show Manipulator Tool (or press the T key) command, and then under Input Channel box, select makeThreePointCircularArc, the three points are now visible.]
Maya 4.0 NURBS Modeling - curve modeling tool
Curve modeling is the use of the contour model curve drawing, the sectional shape of the rotating section or part of the model, by extrusion, to produce the desired rotation or lofting model. Therefore, flexibility is the basis of the curve curve modeling tool modeling in this section will be about the curve modeling tools for detailed Maya.
Controllable point curve tool
Controllable point is a control point type, mainly for shape control curves or surfaces. CV Curve Tool for creating free-form curve after curve is completed, the operator can use the tools of deformation operation.
The number of control points on the curve, the more detrimental to the operation and control curves. For this reason, when you create a curve, it is best to limit the number of control points to a minimum.
To create a curve, you need to switch to Maya Modeling mode menu, shown in Figure 4-6.
Concrete steps to create a curve as follows:
After (a) perform Create → CV Curve Tool \ command, open the Tool Settings dialog box shown in Figure 4-7, make the necessary settings, click the Close button.
\\
Figure 4-6 Mode Settings dialog box in Figure 4-7 Tool Settings
(2) Hold down the X button, enable the grid absorption features. Click Create the first one control point, the existence of a state of the first control point is a little "empty box", which represents the start position of the curve shown in Figure 4-8.
\
The starting point of the curve in Figure 4-8
(3) Click to create the first two points, the existence of the state of the control point is a lowercase letter U, which indicates the direction of the curve. The first two controllable point, once established, is a line connecting the two control points is produced, said this line of Hull curve shown in Figure 4-9.
(4) Click to create the first three control points, so that the first two control points with the first three points of Hull controlled the line will produce. Thus far, a curve is not born, because of a degree of the curve for the three controllable at least four points, shown in Figure 4-10.
\ \
Figure 4-9 The first two points and Hull controlled the first two graphs 4-10 Hull line
(5) Click to create the first four control points, so a connection point of the first one and the last one controllable controllable point of the curve will be generated, as shown in Figure 4-11, press Enter to complete the creation.
\
Figure 4-11 to complete the curve
Curve modeling is the use of the contour model curve drawing, the sectional shape of the rotating section or part of the model, by extrusion, to produce the desired rotation or lofting model. Therefore, flexibility is the basis of the curve curve modeling tool modeling in this section will be about the curve modeling tools for detailed Maya.
Changing the shape of the curve
A controllable curve, once completed, the process of being created or being, according to the different needs, you can freely change its shape. Generally moved by deformation tools, rotate or zoom the corresponding control points to change the shape of the curve purposes.
Press Enter to complete before the curve to create, press the Insert key to display a mobile operator, as the default state of the system, the operation is displayed on the last controllable point, shown in Figure 4-12.
The drag operation moves controllable point location, you can change the shape of the curve shown in Figure 4-13. Press the arrow keys on the keyboard can be switched between a controllable point created.
\ \
Figure 4-12 operator to change the shape of the curve in Figure 4-13
In addition, the curve has been completed, the shape of the curve can be changed according to the following methods.
(1) First, Select By Component Type button, click the status bar, enter the object element-level selection mode.
(2) activation Points button, click the right mouse button in the pop-up menu, select NURBS CVs items, shown in Figure 4-14. Or move the mouse pointer to be activated on the curve, click the right mouse button, and from the pop-up menu, select Control Vertex tag command, shown in Figure 4-15.
\
Figure 4-14 object element-level selection mode
\
Figure 4-15 Select the object element from the marking menu
(3) Select a controllable point of moving objects, activate the Move tool commonly used in the toolbar, it can be rotated or Zoom tool, and then drag operation moves controllable point to change the shape of the curve, as 4- Figure 16.
\
Figure 4-16 to change the shape of the curve
Note:
EP Curve Tool usage and CV Curve Tool using the same method.
Curve can be opened and closed intermittently. If the curve is open, the start node and end nodes are not connected together; if the curve is closed, the start node and end node is at the same position, which is called the seam, the contact point can be disconnected the.
Curve modeling is the use of the contour model curve drawing, the sectional shape of the rotating section or part of the model, by extrusion, to produce the desired rotation or lofting model. Therefore, flexibility is the basis of the curve curve modeling tool modeling in this section will be about the curve modeling tools for detailed Maya.
Pencil Curve Tool
Pencil Curve tool (Penil Curve Tool) is similar to a controllable point curve tool and edit points tool, they collectively known as the curve of the three tools. But if you want to create a sketch curves, Pencil Curve Tool is much more convenient than the previous two tools. It constitutes the way just like a piece of paper draw a simple curve, especially when there is a digitizing tablet time.
Execution Curves → Pencil Curve Tool command, in the view of the mouse will become a small pencil shape, moving it to the starting point, and then drag the mouse to draw a sketch curve, shown in Figure 4-17. If you want to terminate the drawing, just release the mouse.
\
4-17 with Pencil Curve Tool to draw a graph
Tip:
Modification method curves plotted with Pencil Curve Tool and modify other methods like curve.
Arc tool
Arc tool is introduced in Maya 2.0, is used to create the curve curved segments. It consists of two different types: three-point circular arc (Three Circular Arc) and the two-point circular arc (Two Circular Arc).
First, switch to the Modeling module settings, and then perform Create → Arc Tools → Three Point Circular Arc command in the view, click three times, you can create three control points are circular arcs, thus forming a circular curve shown in Figure 4-18. Press the Enter key on the keyboard will be the end of creation.
Tip:
Generating the arc (e.g. the arc generates a 3:00), the edit points are still necessary to control the arc. First select Modify → Transformation Tools → Show Manipulator Tool (or press the T key) command, and then under Input Channel box, select makeThreePointCircularArc, the three points are now visible.]
