CN102682458A - Synchronous regulating method of multi-stunt multi-parameter of key frame animation curve - Google Patents
Synchronous regulating method of multi-stunt multi-parameter of key frame animation curve Download PDFInfo
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Abstract
The invention discloses a synchronous regulating method of multi-stunt multi-parameter of a key frame animation curve. The method comprises the following steps: firstly establishing a stunt parameter tree, establishing a tree structure by using a hierarchical structure of each parameter of the stunt; then reading a handle of a key frame animation curve with a stunt parameter required for regulating according to the stunt parameter tree, and obtaining all key frame information of the stunt parameter, drawing a key frame animation curve of the stunt parameter; and finally regulating the key frame animation curve of the stunt parameter according to the demand, and updating the key frame animation curve according to the regulated key frame parameter. By adopting the method provided by the invention, when requiring for regulating one or a plurality of parameters, a user can conveniently query the information of all key frames with stunt parameter required for regulating, and draws the key frame animation curve and performs the related regulating. According to the method, not only the synchronous regulating of the multi-stunt multi-parameter can be realized, but also the regulation can be conducted according to the curve of other parameters, the regulating efficiency is improved greatly, and the regulating demand is well met.
Description
Technical field
The invention belongs to non-linear editing software and look audio frequency later stage special effect processing and composite software field, control method when being specifically related to a kind of many stunts multiparameter of key-frame animation curve.
Background technology
Any animation will show motion or change, and front and back will provide two different key states at least, and the variation of intermediateness and linking computer can be accomplished automatically.Frame is the single width image frame of least unit in the animation, is equivalent to each the lattice camera lens on the cinefilm, and frame shows as lattice or a mark on the time shaft of animation software.The frame of expression key state is called key frame.The parameter of influential picture image all can become the parameter of key frame, like parameter of position, rotation angle, texture etc.The key frame technology is a most basic and utilization method the most widely in the computer animation.
Utilizing non-linear volume montage software and looking audio frequency later stage special effect processing and composite software, preparing advertising, in the process of film clips, film etc., often need to regulate parameters, key frame is being set, thereby forms the effect of a variation in time.Therefore the key-frame animation curve is a kind of regulating measure important and commonly used.Whether convenient and swift directly the having influence on of key-frame animation curve adjustment looked the efficient that audio frequency is made.
In existing software, the adjusting of key-frame animation curve is a controlled plant with some parameters of some stunts usually, each stunt, and the key frame between each parameter is regulated and is isolated.And in practical application, usually need be to the adjusting of some parameters of some stunts with reference to the key-frame animation curve of other parameters, the key frame of perhaps many stunts, multiparameter is regulated simultaneously.
Summary of the invention
Needs to defective that exists in the prior art and practical application; Control method when the object of the present invention is to provide a kind of many stunts multiparameter of key-frame animation curve; Can carry out the adjusting of the key-frame animation curve of many stunts multiparameter simultaneously through this method; And can greatly facilitate operation with reference to the key-frame animation curve of other parameter when carrying out parameter regulation, improved efficient.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is following:
Control method in the time of a kind of many stunts multiparameter of key-frame animation curve may further comprise the steps:
(1) set up stunt parameter tree, its concrete mode is:
1) root node of inquiry stunt parameter obtains the one-level child node under this root node;
2) check whether the one-level child node is group node,, then directly obtain the title and the numerical value of this one-level child node if not if then inquire about the secondary child node under this group node and obtain the title and the numerical value of this child node;
3) according to the title and the numerical value of child node, insert tree structure, and create the handle of key-frame animation curve;
4) check whether child nodes all under the stunt parameter reads and finish, if then stunt parameter tree is set up and accomplishes; Then return step 2 if not);
(2) according to stunt parameter tree, read the handle of the key-frame animation curve of the stunt parameter that needs adjusting, obtain all key frame informations of stunt parameter, draw the key-frame animation curve of stunt parameter;
(3) as required the key-frame animation curve of stunt parameter is regulated, and refreshed the key-frame animation curve according to the key frame parameters after regulating.
Further, aforesaid control method, the horizontal ordinate of said key-frame animation curve are the time, and ordinate is the parameter value of stunt parameter.
Further, aforesaid control method, said stunt parameter tree is meant the tree structure of the stunt parameter of setting up according to the key frame of stunt parameter.
Further, aforesaid control method, in the step (1), said root node is meant special efficacy itself; Said group node is meant the node that has child node under the node; Said one-level child node is meant the child node of root node, is the stunt parameter of stunt; Said two-level node is meant the child node of one-level child node, is the stunt parameter of stunt.
Further, aforesaid control method in the step (1), in setting up the process of special efficacy parameter tree, also is included as the key frame mapping table that each non-group node is created all key frames that are used to write down it.
Further, aforesaid control method, in the step (2), the concrete mode of all key frame informations of said acquisition stunt parameter is:
The one-level child node corresponding down according to the stunt root node at special efficacy parameter tree query stunt parameter place;
Check whether this one-level child node is group node, if continue the secondary child node under the inquiry group node; Then directly inquire about if not and obtain this node;
Read the key frame mapping table of non-group node, inquiry obtains its all key frame informations.
Further, aforesaid control method, said key frame information comprise two-dimensional coordinate information, interpolation method and the extrapolation mode of key frame.
Further, aforesaid control method, in the step (3), said key-frame animation curve to the stunt parameter regulates that the coordinate that comprises key frame is regulated and the adjusting of interior extrapolation mode.
Further again, aforesaid control method, the concrete mode of carrying out the coordinate adjusting is:
At first according to the mapping ratio between the device coordinate system at interface and the actual parameter coordinate system, the distance under the device coordinate system that moves on the interface is changed into the real offset of key frame, change the numerical value of key frame then.
Further, aforesaid control method, the adjusting of extrapolation mode is that the extrapolation mode realizes in changing through the handle that obtains the key-frame animation curve in carrying out.
Effect of the present invention is: method of the present invention is through setting up special efficacy parameter tree to stunt; When needs are regulated some or a plurality of parameter; Can inquire the information of all key frames of stunt parameter that need adjusting very easily, and draw out the key-frame animation curve, the line correlation of going forward side by side is regulated.Through this method, can carry out the adjusting of many stunts multiparameter, can regulate with reference to the curve of other parameter, improved adjusting efficient greatly, also satisfied the needs of regulating better.
Description of drawings
The process flow diagram of control method when Fig. 1 is many stunts of the present invention multiparameter;
Fig. 2 is the process flow diagram of setting up of stunt parameter tree of the present invention;
Fig. 3 is for drawing the process flow diagram of key-frame animation curve;
Fig. 4 is for checking stunt parameter hierarchical structure and the process flow diagram that obtains key frame information according to stunt parameter tree;
Fig. 5 utilizes the method for the invention to carry out the process flow diagram of key-frame animation curve adjustment;
Fig. 6 is the demonstration synoptic diagram of regulating many stunts multiparameter the time in the specific embodiment of the invention.
Embodiment
Below in conjunction with Figure of description and embodiment the present invention is done further detailed description.
The process flow diagram of control method when Fig. 1 shows many stunts of the present invention multiparameter, this method may further comprise the steps:
Step S11: set up special efficacy parameter tree;
Stunt parameter tree is meant the tree structure of the stunt parameter of setting up according to the key frame of stunt parameter.Fig. 2 shows the process flow diagram of stunt parameter tree, and its concrete mode is:
1) root node of inquiry stunt parameter obtains the one-level child node under this root node;
2) check whether the one-level child node is group node,, then directly obtain the title and the numerical value of this one-level child node if not if then inquire about the secondary child node under this group node and obtain the title and the numerical value of this child node;
3) according to the title and the numerical value of child node, insert tree structure, and create the handle of key-frame animation curve;
4) check whether child nodes all under the stunt parameter reads and finish, if then stunt parameter tree is set up and accomplishes; Then return step 2 if not).
Wherein, in setting up the process of special efficacy parameter tree, also be included as the key frame mapping table that each non-group node is created all key frames that are used to write down it.Root node is meant special efficacy itself; Group node is meant the node that has child node under the node; The one-level child node is meant the child node of root node, is the special efficacy parameter of stunt; Two-level node is meant the child node of one-level child node, is the special efficacy parameter of stunt.
Step S12: read key frame information, draw the key-frame animation curve
According to the stunt parameter tree that step S11 is set up, draw the key-frame animation curve of stunt parameter.Fig. 3 shows the process flow diagram of drawing the key-frame animation curve, and the stunt parameter of regulating at first as required reads the handle of its key-frame animation curve, obtains all key frame informations of this stunt parameter then, again according to these information curve plottings.
Fig. 4 shows the process flow diagram that obtains the whole tree-like hierarchical structure of stunt parameter and all key frame informations; By finding out among the figure; When if the user need check the whole tree-like hierarchical structure of selected some parameters; Just can start with, search its father node through the tree structure of parameter, till finding root node from this parameter.Whenever we just choose it to find a father node, and the hierarchical structure of a parameter like this has just shown out.
The concrete mode that shows all key frame informations that obtain the stunt parameter among Fig. 4 simultaneously is following:
Whether the stunt node at the stunt parameter place that tree query need be regulated according to the special efficacy parameter is group node, if continue the secondary child node under this group node of inquiry; Then directly inquire about if not and obtain this node;
Read the key frame mapping table of non-group node, inquiry obtains its all key frame informations.
Like this, the user just can be according to two-dimensional coordinate information, interpolation method and the extrapolation mode of all key frames of the stunt parameter that obtains, then according to these information, and key-frame animation curve of drafting under the two-dimensional coordinate system of key frame control band.As if a plurality of parameters that have of choosing, we will draw many key-frame animation curves.Like this, the user just can be with reference to the key-frame animation curve of other parameters when regulating certain parameter, the convenient use.Simultaneously, owing to can show the key-frame animation curve of a plurality of parameters simultaneously, the user can regulate by these key-frame animation curves of multiselect simultaneously, greatly facilitates operation.
Step S13: the adjusting of key-frame animation curve and refreshing
As required the key-frame animation curve of stunt parameter is regulated, and refreshed the key-frame animation curve according to regulating the back key frame parameters.Wherein, the key-frame animation curve of stunt parameter is regulated the coordinate that has comprised key frame is regulated and the adjusting of interior extrapolation mode.
Fig. 5 shows the schematic flow sheet that key-frame animation is regulated; When the user carries out the coordinate adjusting to certain key frame; We are according to the mapping ratio between the device coordinate system at interface and the actual parameter coordinate system; Convert the distance under the device coordinate system that moves on the interface real offset of key frame to, change the numerical value of key frame thus.And then the drafting that refreshes the key-frame animation curve according to the numerical value of key frame after the change.When the user selects a plurality of key frames, particularly different parameters, during a plurality of key frame of different stunts, because all be the key frame of the some parameters in some tree structures, so we only need the adjusting of these key frames of circulation just passable in system.
Below in conjunction with specific embodiment the method for the invention is further explained.
Embodiment
Fig. 6 shows the synoptic diagram of regulating when utilizing the method for the invention to carry out many stunts multiparameter; The stunt parameter tree zone of the left field of figure for setting up; Center section is to carry out the zone that key frame is regulated, and the right side is that the zone that coordinate or keyframe interpolation mode are regulated is promptly carried out in the tree-like zone of key frame.
Proofreading and correct two stunts with fuzzy and base color is example.When need to the key-frame animation curve fuzzy and base color proofread and correct two stunts when regulating, at first set up stunt parameter tree according to the hierarchical relationship of stunt parameter, zone shown in the left side among Fig. 6 according to step S11.When needs carry out certain parameter conciliation of stunt; Choose this parameter in the parameter tree, read the key frame handle of this parameter, the key frame curve of this parameter of drawing; After " shade " parameter of proofreading and correct as if " width ", " highly " and the base color of the fuzzy stunt of multiselect among Fig. 6; Read the key frame handle of three parameters, separately the key-frame animation curve of drawing, totally three curves.
When regulating, choose some key frame in these three curves, drag mouse, can wholely move, in the process that integral body moves, can make more reasonably and regulating referring to the position of other key frames; The interpolation method of these key frames can be set at regional " interpolation method " drop-down menu of the Key Properties on right side simultaneously; The extrapolation mode of these three curves can be set in " extrapolation mode " drop-down menu simultaneously.In addition,, click " interpolation key frame " button in Key Properties zone, right side, can add key frame for them simultaneously the key frame curve of choosing; To the key frame from different parameters, different stunts of the key frame of choosing, particularly multiselect, click " deleting keys " button in Key Properties zone, right side, can delete these key frames simultaneously.
The method of the invention for the key-frame animation zone of multiselect, can be revised the extrapolation mode of their key frame interpolation method and animation curve simultaneously in this zone.In realization, all can obtain the parameter node of stunt through the handle of curve, revise the interior of this parameter then and insert and the extrapolation mode, refresh the key-frame animation curve according to amended value again each bar curve of current operation.
Interpolation method comprises Bezier interpolation, linear interpolation, constant interpolation.When timeline is played between certain key frame and its next key frame; System can obtain the interpolation method sign amount of this key frame; If be judged as the Bezier interpolation, then obtain this key frame and its forward direction reference mark coordinate, and next key frame and its is back to the reference mark coordinate; Calculate the equation of three Beziers, carry out the interpolation of Bezier; If be judged as linear interpolation, then obtain the coordinate of this key frame and next key frame, calculate both linear equations, carry out linear interpolation; If be judged as the constant interpolation, then only obtain the coordinate of this key frame, directly use this crucial numerical value.
The extrapolation mode comprises constant interpolation, linear interpolation, key frame linear interpolation.During regional outside timeline is in two key frames of head and the tail, system can read the extrapolation mode sign amount of this key-frame animation curve.Is example with timeline less than the time value of first key frame, if extrapolation mode sign amount is judged as the constant interpolation, then the numerical value of the parameter values of timeline place time and first frame is identical, remains unchanged; If be judged as linear interpolation, then obtain the coordinate at first key frame and its forward direction reference mark, calculate linear equation, carry out linear interpolation; If be judged as the key frame linear interpolation, then obtain the coordinate of first key frame and second key frame, calculate linear equation, carry out linear interpolation.
When carrying out the adjusting of key-frame animation curve through the method for the invention; Can regulate with reference to the key-frame animation curve of other parameter; For when regulating to current operating curve with distinguish with reference to curve, when drawing, can represent current operating curve and non-current operating curve respectively with the curve of different colours.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technology thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. control method many stunts multiparameter of a key-frame animation curve time may further comprise the steps:
(1) set up stunt parameter tree, its concrete mode is:
1) root node of inquiry stunt parameter obtains the one-level child node under this root node;
2) check whether the one-level child node is group node,, then directly obtain the title and the numerical value of this one-level child node if not if then inquire about the secondary child node under this group node and obtain the title and the numerical value of this child node;
3) according to the title and the numerical value of child node, insert tree structure, and create the handle of key-frame animation curve;
4) check whether child nodes all under the stunt parameter reads and finish, if then stunt parameter tree is set up and accomplishes; Then return step 2 if not);
(2) according to stunt parameter tree, read the handle of the key-frame animation curve of the stunt parameter that needs adjusting, obtain all key frame informations of stunt parameter, draw the key-frame animation curve of stunt parameter;
(3) as required the key-frame animation curve of stunt parameter is regulated, and refreshed the key-frame animation curve according to the key frame parameters after regulating.
2. control method as claimed in claim 1 is characterized in that: the horizontal ordinate of said key-frame animation curve is the time, and ordinate is the parameter value of stunt parameter.
3. control method as claimed in claim 1 is characterized in that: said stunt parameter tree is meant the tree structure of the stunt parameter of setting up according to the key frame of stunt parameter.
4. control method as claimed in claim 1 is characterized in that: in the step (1), said root node is meant special efficacy itself; Said group node is meant the node that has child node under the node; Said one-level child node is meant the child node of root node, is the special efficacy parameter of stunt; Said two-level node is meant the child node of one-level child node, is the special efficacy parameter of stunt.
5. control method as claimed in claim 1 is characterized in that: in the step (1), in setting up the process of special efficacy parameter tree, also be included as the key frame mapping table that each non-group node is created all key frames that are used to write down it.
6. control method as claimed in claim 1 is characterized in that: in the step (2), the concrete mode of all key frame informations of said acquisition stunt parameter is:
Whether the stunt node at the stunt parameter place that tree query need be regulated according to the special efficacy parameter is group node, if continue the secondary child node under the inquiry group node; Then directly inquire about if not and obtain this node;
Read the key frame mapping table of non-group node, inquiry obtains its all key frame informations.
7. like claim 1 or 6 described control methods, it is characterized in that: said key frame information comprises two-dimensional coordinate information, interpolation method and the extrapolation mode of key frame.
8. control method as claimed in claim 1 is characterized in that: in the step (3), said key-frame animation curve to the stunt parameter regulates that the coordinate that comprises key frame is regulated and the adjusting of interior extrapolation mode.
9. like claim 1 or 8 described control methods, it is characterized in that: the concrete mode of carrying out the coordinate adjusting is:
At first according to the mapping ratio between the device coordinate system at interface and the actual parameter coordinate system, the distance under the device coordinate system that moves on the interface is changed into the real offset of key frame, change the numerical value of key frame then.
10. like claim 1 or 8 described control methods, it is characterized in that: the adjusting of extrapolation mode is that the extrapolation mode realizes in changing through the handle that obtains the key-frame animation curve in carrying out.
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