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RC4 Knowledge Base

DMXpix ColorMatch Using RC4MagicPC Software

I. Pixel tape features individually addressable pixels

II. For uniformity, colors should be consistent even when using different brands of pixel tape

A. Color uniformity is achieved by doing a white balanceWhite balanceWhen white balancing, two or more different hues of white light are compared side by side and adjusted until they both are visually the same. Once all the white lights are adjusted to the same hue, all other colors coming from that specific light source (like an LED strip) will also be the same.
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using RC4 ColorMatch

III. White balancing for pixels is done via the DMXpix Tab on the RC4MagicPC Software

A. This tab only appears after the software does a Read Device and finds a DMXpix

1. This tab displays various configuration parameters including pixel type, color order, RC4 Custom Pixel Profile settings, and ColorMatch values

2. To start, the color match values should be at 255, which is the maximum level

3. It is helpful, though not required, to use the Custom Pixel Profiles Unison mode, which controls all the pixels in a string from one set of DMX channels for RGB (or RGBW)

IV. On the Virtual TX tab in RC4MagicPC software, bring up all control channels that affect visible pixels so that red, green, and blue (but not white) are at full

A. Initially, these whites might not look white at all, and will need to be adjusted

1. If your white is primarily a color (red, blue or green) go to that specific channel (red, blue or green) and manually reduce it using the associated Virtual TX fader

2. Depending on your particular pixel tape, you may need to adjust one or two primary color levels to find the best white

a. Do NOT adjust all 3 primary colors — for widest and smooting dimming range, at least one should be at 255 (100%)

3. In this example, Driver A starts at DMX channel 1

a. Using the DMX Start Channel located on the DMXpix Tab of the RC4MagicPC Software, users can specify their own DMX Start Channel

B. Note the numeric values, the levels, for for red, green and blue faders

1. Click the All Off button on the Virtual TX screen

2. Return to the DMXpix tab

3. Manually type in the values for red, green, and blue from the Virtual TX page into the Pixel ColorMatch settings

4. When controlling 4-color pixels (red, green, blue, white) the ColorMatch setting for whitecan usually be left at 255 (100%)

a. Reducing this setting will scale down the brightness range of white, which is just as easily done with the DMX channel(s) controlling white on the DMX console

5. Click the Send Settings to DMXpix button to transfer the new settings to the device

C. Click the Virtual TX tab and test the new white-balanced color palette

1.  Bring up all control channels that affect visible pixels so that red, green, and blue (but not white) are at full

2. The composite white should look like the saved reference levels

3. If two or more pixel strings have been visually matched using the method outlined here, they should all come up looking almost identical (they will be as close as you and your eye was able to get them)

3. Pixel strips of different brands and different resolutions can all be calibrated to have the same whites and consequently, nearly identical color palettes

V. RC4 ColorMatch enables designers to use a variety of pixel products together for a uniform design regardless of chip set, age or manufacturer