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Creating Animation with YFCAD Software: Principle, Techniques and Advantage

Similar to movie that achieves a motion effect by playing the film at the speed of 24 frames per second, YFCAD software can also produce an animation by combining static renderings from different angles in a specific order, and generate a video in avi format.

Sketch map:

Unlike 3ds Max that can assign motion path to any objects in the scene and produce a stunning animation, YFCAD software can only combine the final renderings and make a relatively simple animation. However, as a professional software specialized in interior design,  YFCAD  software’s  integrated  performance  on animation  exceed  other counterparts on the aspect of operation, speed and final effect, which gives a fabulous tool for designers to demonstrate their works dynamically.

Introduction and comparison of the basic ways

The fundamental operation of making animation with YFCAD software is path setting. YFCAD software provides three methods to set animation paths. Here we use the sample scene below to introduce these three methods for path setting, and compare their advantages and disadvantages with the final animations (For different YFCAD software, please refer to the corresponding User Manual to find the commands).

Download links of the renderings and packages of the scene with animation path:

Method 1

Record the actual movement of camera

Operation steps:

1.   Select “Record” under  Animation menu.

2.   Change the position or the view of camera with “Walk” function. System will record every single operation you’ve made.

3.   Press the “Stop” button to stop recording.

Method 2

Setting camera path and Target point in VR Operation steps:

1.   Select “Set Path” under Animation menu.

2. Program will switch to top view automatically. Then user can set a series of key points to define the camera  path.  When  the  path  is  set, right click to finish.

3.   Program will ask whether to specify a target point for the camera. If a target point is specified, the system will produce an animation with the camera moves along the path while facing a target point (an object or a location). If the target point is not specified, the camera and the target point will share a same path.

Method 3:

Setting camera path and target point in Modeling (only for the software with Modeling module)

Operation steps:

1.   Open the dwg file in Modeling. Make sure that the coordinate of the structure in dwg and in VR are the same, otherwise the animation will deviate from the path you set in Modeling. Then use polyline, spline or ellipse to draw path for camera.

2.   Select “Select Path” under  Animation menu.

3.   There  are  three  path  setting  methods  in

Select Path:

a) Set Path for Camera

Give a value to Camera Height, and left click on Select Path next to it. The view will switch to Modeling automatically. Select the polyline, spline or ellipse just drawn for defining the camera path. Then the view will switch back to VR and the path setting for camera is accomplished.

b) Set Path For Camera + Path For Target Give a value to Camera Height, and click Select   Path.  The  view  will  switch  to Modeling  automatically.  Pick  a  polyline, spline or ellipse just drawn for defining the camera  path.  Then  the  view  will  switch

back to VR; Give a value to Target Height, and click  Select Path next to it. The view  will  switch  to  Modeling  again.  Pick  another  polyline,  spline  or ellipse  for defining the target path. The view will switch back to VR and the path setting for camera is accomplished.

c) Set Path For Camera + Target Point

Give a value to Camera Height, and click  Select Path next to it. The view will switch to Modeling automatically. Pick a polyline, spline or ellipse for defining the camera path. The view will switch back to VR; Give a value to  Target Height,  click Select Path next to it. The view will switch to Modeling again. Pick a point from Top view to define the target position. The view will switch back to VR and the path setting for camera is accomplished.

Codec for making animation:

After the path is set and the animation is previewed, we can go on to produce an animation  in avi format.  First of all, we need  to  choose  a  codec,  and  you  can choose all the codec installed in your PC. However, the PC’s own codecs can only produce an animation in low quality or enlarge size. Thus, they are basically not good choices. To achieve a good balance among quality, size and producing effectiveness of animation, we recommend using codec divx or xvid.

A comparison of a scene’s animations created with different codec.

Compressor: Microsoft Video 1

Length: 00:00:04

Size: 1.67 MB

Compressor: Xvid MPEG-4 Codec

Length: 00:00:04

Size: 1.75 MB

Compressor: Intel IYUV Codec

Length: 00:00:04

Size: 55.8 MB

Compressor: Uncompressed

Length: 00:00:04

Size: 148 MB

Download link for Xvid:  http://www.xvid.org/Downloads.43.0.html

Divx  http://www.divx.com/en/software/divx

Notes:

The setting in the dialogue box

The skills of setting path for animation:

1.   The variation of the path height.

There are two methods to produce an animation with changing height:

Method 1

Choose  “Ground  Detection”  in  Make Path dialog. However, this method couldn’t  guarantee  the smoothness  of the animation. Therefore, this method is not recommended.

 Method 2

Draw path with height variation in Modeling. Steps:

A.  Draw the path with “spline” from Top View;

B.  Move the whole path to the suitable height, such as 1200;

C.  Change spline nodes’ height using relative coordinate. For example, if you need to rise a node with 800mm, type in @0,0,800;

D.  Having set the height of node with this method, we obtain a path that has height variation.  If it’s not ok after previewed in VR, it’s very convenient to go back to Modeling and modify the height of nodes.