User guide

2-11

Basics

2.4 Working in Real Time

With the DVS system you can perform most operations in real time.

When playing out or recording, the workstation is capable of handling

two data streams of 2K material for transitions in real time.

Using CLIPSTER you can even play out one stream of 4K material in real

time as long as some conditions are observed: To play out 4K you will

need an appropriate hardware equipment (CLIPSTER 4K) and the res-

olution of the clip should not exceed 4096 × 3112 pixels (10 bit). With

this a real-time play-out of 4K material is possible. The usage of a

3D LUT, cropping, zoomings and pannings, and primary color correc-

tions, can also be performed in real time.

However, other effects (e.g. secondary color correction) or clips of an

even higher resolution cannot be processed in real time. In such a case

the DVS system offers you two different approaches to maintain a real-

time workflow as long as possible: You can work with proxies or you

can prerender the material and/or operators prior to a play-out.

2.4.1 Working with Proxies

A proxy is a downscaled clip of a higher resolution (greater than 2K).

Usually, proxies will be used as a substitute when working with high-

resolution film material, such as 4K. Then the original data will be

downconverted to a 2K format that can be handled by the DVS soft-

ware and system in real time without problem.

In this workflow you will add the 4K clips as usual to the bin. But prior

to using them in the timeline you will create proxies of them. The

downconverted images of the proxy will be stored in a reserved loca-

tion for temporary data on the main storage.

The stored proxies carry project specific file names that are generated

and administered by the Edit Tool automatically for the currently loaded

project. The links to the proxies will be stored in the project file, and

when reopening the project again you will not have to create them

again. When working with proxies, a lot of image files may be gener-

ated amounting to a large proportion of disk space.

When working with proxies or prerendered files, additional

data (image files) will be created on your main storage. It is rec-

ommended to store these project specific for each project sep-

arately. For further information about this please refer to

section “Notes on Project Management” on page 2-14.

You can set the storage location of such files for each project

differently via the Configuration Tool on the tab Project

(group Project, field Path for proxy data; see “CLIPSTER

Configurations” user guide).