Scratcher effect shader - Learning shaders in Godot episode 2

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In this second episode on my learning shaders series, I'm showing you how I made a scratcher shader inspired by 8pool.
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- Intro & outro music
Jazzhead - VOiD1 Gaming (www.void1gaming.com)
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CHAPTERS
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00:00 - Intro with results
00:24 - Thinking about how to make it
01:59 - Nodes setup
03:08 - Drawing on textures
04:51 - Creating the shader
06:30 - Feeding the texture to the shader
06:55 - Result
07:11 - CPU comparison
08:53 - CPU solution results
09:42 - Outro

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Опубликовано:

10 июл 2024

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Комментарии : 6

@beedeo3664 Год назад

Hi, I loved your video tutorial. Step by step and very clear. I am new to godot and am trying to make a scratch off. I followed your example and it worked for me but I have a question: How do I know the percentage of the scratched surface? I would like that when 50% of the surface is scratched, the rest of the surface is automatically scratched. Thank you very much! ❤

@mrelipteach Год назад

Thanks, glad you liked it. Honestly I'm not completely sure. The most obvious way to me is to count how many pixels have been changed in the mask texture (the black and white texture on which we draw), but I'm afraid it's going to be quite slow because you have to do it in GDScript.

@melpeslier 8 месяцев назад

I think we can just use a transparent drawing color ?

@RenatoMeyer 9 месяцев назад

Hey! Awesome tutorial! Can this be aplied to a moving sprite? Like, if I have the sprite of a cow, could I erase the head and then move the cow with a missing head around?

@mrelipteach 9 месяцев назад

You have to make a shader on the texture and not a screen shader. So yes it can be done with some tweaking

@RenatoMeyer 9 месяцев назад

@@mrelipteach That's cool! Would you say it's similar to what you do here and I could use this tutorial? Or do you think it's too different