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Using Pictures as a 'Multiply' Layer

BMM_Archive · July 15, 2026

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Preserved forum archive. This topic stores the original first post and locally mirrored RPG Maker Web attachments when available. It is posted by the BMMPlay archive account, not by the original creator.

Original Source

Original title: Using Pictures as a 'Multiply' Layer
Original author: Morg
Original date: April 11, 2015
Source thread: https://forums.rpgmakerweb.com/threads/using-pictures-as-a-multiply-layer.38767/
Source forum path: Game Development Engines > Legacy Engine Support > RPG Maker VXAce Support

Summary

Hey there, I've been using some custom tilesets in conjunction with Pictures in order to create some interesting lighting effects. It all worked nicely when I was just using black shadows but now that I'm trying to incorporate colour its gone a bit wrong. My intention was to overlay a gradient as a Multiply layer (which is what I thought the 'add' type was) But instead it behaved like a photoshop Screen layer. {

Archived First Post

Hey there,

I've been using some custom tilesets in conjunction with Pictures in order to create some interesting lighting effects. It all worked nicely when I was just using black shadows but now that I'm trying to incorporate colour its gone a bit wrong.

My intention was to overlay a gradient as a Multiply layer (which is what I thought the 'add' type was) But instead it behaved like a photoshop Screen layer.

Protected download

I intended for it to look like this,

Protected download

But instead it came out like this.

So my question is;

Is there any way to overlay a picture to behave as a photoshop Multiply layer?

I apologise if I've just missed something really obvious, but I can't seem to find a solution anywhere.

If need be I could resort to a tileset swap or something of that nature but being able to use Multiply layers would be preferable (and useful in the future).

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Ok, I had just finnished writing all of this when I found the solution. It was fairly simple but wasn't that obvious so I'll explain here incase anyone else faces this trouble.

So, all I had to do was take the layer I wanted to multiply, inverted its colours and then apply it as a Sub layer, rathe than an Add layer.

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