Designing an abstract background effect

Start by creating a new file. Fill it with white color. From "Filter" menu select "Render>>Lighting Effect ". Apply settings as shown.

Duplicate the layer. Press Ctrl+T. Right click and rotate 90°CW.

Change the layer mode to "Linear Burn " from top of the layer palette.

Duplicate the layer twice. Rotate them 180° & 270° respectively. Play around with their layer modes.

Select and merge al the layers. Duplicate the layer. From "Filter" menu select "Stylize>>Glowing Edges. ". Apply settings as shown.

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