Preview Modes

Preview modes

Onlyview offers several preview modes.

Media

This is the default mode. The 3D environment is rendered normally, just like on the Media Servers. The only difference is that on Producer, there is a small additional lighting, so that even a fully dark scene, without any projected media or light, can be seen and navigated.

Resolution

This mode shows the effective resolution of the projectors on the target surfaces. This includes the deformations of the pixels due to the projector being at an angle.

To avoid cluttering the view, each square represents a 10x10 px area.

Illumination

This mode helps analyzing and studying the amount of light that arrives on the stage. It is especially useful to study the number of needed projectors and designing the lighting rig.

You can set the target illumination that is requested by the customer in the top-right box, and the viewer will show the illumination of the stage, in lux, at each point of the mesh.

Red colors represent problematic areas where the lighting does not meet the requirements; blue colors represent the area that are lit more than enough, which is often the case where projectors overlap to allow for softedges; and yellow colors are lit just enough.

Tracking study

Tracking consists in making a 3D object follow a performer or a stage element. This can be done using a variety of techniques, including OptiTrack, BlackTrax, LPM, etc. See the Devices and ActionGraph sections for more information.

Using optical tracking, it is often challenging to foresee the position of the tracking cameras, because many criterion should be taken into account: the desired precision, the relative position and orientation of the cameras, their number... Onlyview's Tracking study tool helps designing the cameras rig with precise and objective data, instead of guesswork.

To use this mode, first create a new object, and add it a Tracking Zone component. This area will be analyzed by the algorithm. Note that height is taken into account too, which is important because tracking people or large objects don't only require visibility on the ground, but also above.

Then create another object, and add it a Tracking Camera component. Fill in the resolution and field of view, and position the camera where you want. Do the same so that you have at least 3 Tracking cameras looking at the Tracking Zone from different angles.

The Tracking Zone will then show color-coded cubes which will highlight problematic areas where tracking quality does not match the requirements. The color code is the same as for the Illumination mode.