ModernGL-Shader-with-pygame

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ModernGL-Shader-with-pygame

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you can use this class to give pygame a shader to render screen. it is easy to use.

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# ModernGL-Shader-with-pygame
I had put a crt shader as example in shaders folder. you can write your own shader.
you can use this class to give pygame a shader to render screen. it is easy to use.

I will add tutorial later I have free time.

it's easy to use.
I had put example file in it. You can experiment with it and try something new.

1. replace your display variable with a Surface. and blit everything you want to show on that Surface.
2. display set mode with OPENGL and DOUBLEBUF flag. 
3. import my shader class. And init a new shader for your game. Remember to pass your display Surface to init it.
4. Replace all display.update with your new shader render function.

Enjoy crt shader in your game.

crt example : https://www.youtube.com/watch?v=2ekJdkXC4iM

my works using this class :

Myth of Charlie ：https://jingshing.itch.io/myth-of-charlie

DragonCastle：https://jingshing.itch.io/dragoncastle

使用說明：
1. 將你原本用於display的變量以Surface的方式重新宣告，並取消對display的變量宣告。之後要繪製的圖形就全部渲染到這張Surface上。以下將簡稱這個Surface為Screen。screen = pygame.Surface(size)
2. 在display裡設置為OPENGL和DOUBLEBUF的模式，以便讓OpenGL渲染。pygame.display.set_mode(size, DOUBLEBUF|OPENGL)
3. 導入上面提供的Shader的Class，並自行實例化。之後要用這個實例化的物件渲染。
4. 將原本畫面更新的部分，全部更改成以shader的物件render。有獨立的func，也設置了__call__的指令。可以直接呼叫物件渲染。

我的OpenGL啟蒙者。ModernGL在很多方面都方便很多，不過這也是弊端，雖然和pygame的兼容性很高，不過不是一條長遠的道路。

想要過過shader的癮可以嘗試，但最好淺嘗，ModernGL本身的缺陷很多，打包時很痛苦。

如果只是要做pygame項目是完全夠用的。歡迎參考我有使用這個shader的作品：

Myth of Charlie ：https://jingshing.itch.io/myth-of-charlie

DragonCastle：https://jingshing.itch.io/dragoncastle

---
## UPDATE:
* ADD "Fullscreen" function in crt_shader

* ADD "change shader" function in crt_shader

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