Impact

This forum is read only and just serves as an archive. If you have any questions, please post them on github.com/phoboslab/impact

6 years ago by Rungo73

Wondering if and how to implement image blend modes like multiply ,
add etc?

6 years ago by Graphikos

You can do some composite stuff with Canvas2D context..

http://tutorials.jenkov.com/html5-canvas/composition.html
https://developer.mozilla.org/samples/canvas-tutorial/6_1_canvas_composite.html

6 years ago by Krisjet

I've used globalCompositeOperation in games before, just change it in the entitys draw function before you call this.parent, and then change it back after. Take note though, that not all browsers interpret the spec in the same way, so test your game in firefox, chrome, safari, ie and opera to see that it works as it should.

6 years ago by tharshan09

Here is a plugin for multiply.
https://github.com/deakster/impact-imageblender

Here is the official forum post:
http://impactjs.com/forums/code/image-blender-tint-blend-your-images-client-side-using-any-color
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