GPU-only reads: Materials

1. Create the shared key

Create a Pixel Era GPU Ledger data asset. Enter SharedColor in New Key and click AddKey. Leave Slots Per Key at 1 and save.

12

1. 1
   Name the key

   Enter SharedColor.
2. 2
   Click AddKey

   Keep Slots Per Key at 1, then save the asset.

2. Write the color

In Blueprint, call Pixel Era: Read Global with Source, UV, Ledger, and Request Key. Call again whenever it needs updating. This GPU-only path needs no Pixel Era Manager actor.

1

1. 1
   Shared key

   Use SharedColor in both the writer and receiver.

3. Select the shared value

Add Pixel Era: Receive in your material. In its Details, select the same Ledger and Request Key.

12

1. 1
   Choose the ledger
2. 2
   Choose SharedColor

   Use the same key as Read Global.

4. Use the output

Leave Key Offset disconnected for this single value. Connect RGB, Alpha, or RGBA to the effect you want to control.

1

1. 1
   Latest shared color

   RGB feeds Emissive Color in this example.

Only need a local read?

Use Pixel Era: Read Local with a Texture Object and UV. Its RGBA output needs no ledger or publishing step.

1

1. 1
   Source texture

   Select the Texture Object and assign your source in Details.