hello so i want to use the bloom effect on my game but I don’t know how since I am a beginer
We have a fully scriptable render pipeline where your can draw your game to a render target, apply a bloom past processing effects, and then compose a final scene.
Please take a look at the Defold manual on the render pipeline to learn more.
You can also check the asset portal where there are examples of post processing effects.
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It might looks hard especially, when you are beginner, there’s a lot to learn for shaders - you can start with my tutorial: Shaders for Beginners
For what you need this bloom effect?
It might be that you need to make full screen post processing, something like: https://github.com/britzl/lumiere (it has some postprocessing effects, but not bloom).
Bloom is magnifying light spots on the image (frame) and a little bit of blur. If you get past writing some basic shader and modify your pipeline for example according to this Simple Lighting: publicexamples/examples/simple_lights at master · britzl/publicexamples · GitHub
You might be able to write some simple bloom - if you will get pass this, let us know and we will try to help with actual bloom 
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