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 3D modeling

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 3D modeling

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 3D modeling

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Graphics window

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3D modeling

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3D panel

 

Plate height

- vertical size of the license plate in the 3D Video and 3D World.

 

Plate width

- horizontal size of the license plate in the 3D Video and 3D World.

 

Specify in these boxes the sizes of license plate, accepted in you country.

Also create *.bmp file with the image of you license plate, name it Number.bmp and replace with it the file of the same name in the folder \Models\ in the VideoCAD installation directory.

!! The size of file sides, in pixels, must be equal to powers of two: 16,32,64,128,256,512,1024,2048 ....

After that 3D models - cars will be displayed with your license plate.

 

Ground color

- ground color in the 3D Video. In the 3D World the ground color is specified separately.  

 

Licence plate and test chart antialiasing

If these boxes are checked- the license plates and test chart are displayed more realistic in the 3D Video, but at that it takes more time for repainting the 3D Video and there can be errors on some outdated graphic card.

 

Space limits

 

At the  use of some outdated graphic card the occurrence of distortions on the image in the 3D Video is possible. For reduction of the distortions it is recommended to reduce Model space.

 

The increase of the near space limit has the much greater influence on distortions, than reduction of the far space limit.

The objects which are closer to the camera, than near space limit or farther than far space limit will not be displayed, but the distortions of the objects which are between space limits will be reduced or removed completely.

 

Background res.

 

In this box you can set resolution of vector background in the 3D Video and 3D World.

 

Illumination modeling panel

 

Parameters on this panel are considered in 3D image modeling only if the illumination modeling is switched on.

 

Using Speed <> Accuracy slider you can choose a compromise solution between accuracy of modeling light bounds and performance of illumination modeling.

 

Maintenance factor of illuminators

- allows for supply voltage and lamp parameters variation, lamp aging, luminaire dirt depreciation.

 

Suggested Maintenance factors, according to CIE 97:

 

0.8 - very clean environment, maintenance cycle 1 year;

0.67 - clean environment, maintenance cycle 3 years;

0.57 - normal environment pollution load, maintenance cycle 3 years;

0.5 - dirty environment, maintenance cycle 3 years;

 

If the supply voltage is not stable or below normal then it is necessary to decrease the Maintenance factor proportionally to possible voltage slump.

 

Maintenance factor of cameras

- allows for lens contamination, dirt, camera degradation and parameter variation in the lifetime.

 

Suggested Maintenance factors:

 

0.7 - very clean environment, maintenance cycle 1 year;

0.6 - clean environment, maintenance cycle 3 years;

0.5 - normal environment pollution load, maintenance cycle 3 years;

0.4 - dirty environment, maintenance cycle 3 years;

 

Redrawing 3D Video

 

On this panel you can optimize the speed of redrawing 3D Video according to computer's performance, current design features and designer's habits.

 

Draw 3D Video in separate thread

 

Use separate program thread for redrawing image in the 3D Video. When the checkbox is checked, redrawing the 3D Video doesn't  retard work of other windows but is carrying out with delay.

 

This checkbox is checked by default.  If errors occur while redrawing the 3D Video, try to clear this checkbox.

 

With the help of the Priority combo box, you can control the priority of redrawing 3D Video in separate thread. The higher the priority is, the faster the image  in the 3D Video is redrawn, but the more hinders operation in the Graphics window.

 

In the the Mode combo box you can switch the method of redrawing image in the 3D Video.

Normal - drawing image in the usual way, in one stage;
2 stage - drawing in 2 stages. on the first stage "raw" image is rapidly shown, and then a resource-intensive image processing is carried out;
2 stage+2 priority - like a 2 stage, but the first stage is faster with higher priority.

 

Redraw 3D image only by clicking

 

Modeling complex 3D scenes, especially taking into account illumination, require high computer performance.

If the image in the 3D Video is redrawn too slowly and that hinder operation in the Graphics window, mark this box. After that the image in the 3D Video will be redrawn automatically only at activation of cameras. To force redrawing click on the image.

 

The box is duplicated in the Main menu of the 3D Video.

 

Disable image processing

 

If this box is marked then the image processing will not be modeled.

Modeling gamma, noise, brightness, contrast, resolution, sharpness, compression will be disabled.

 

Redraw speed will increase, errors with outdated video cards may be removed.

 

The box is duplicated in the Main menu of the 3D Video.

 

 

Modeling Depth of Field and Shutter

 

Using Speed <> Accuracy slider you can choose a compromise solution between realism and performance of modeling depth of field, exposure time and rolling shutter.

External link: "The principles of CCTV design in VideoCAD. Part 5. Video surveillance of moving objects"(*.pdf)

 

Rotakin speed (rpm)

 

In the box you can specify number of revolutions of the Rotakin object in revolutions per minute.