파이썬[Python]: kivy - RenderContext 클래스

kivy.graphics 모듈 - RenderContext 클래스(class)

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/// 설명

모든 정보를 가지고 있는 클래스입니다.

참고: graphics 모듈 목록

※ 형식
RenderContext(*args, **kwargs)

reference
https://kivy.org/doc/stable/api-kivy.graphics.html

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/// 예제

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import kivy   kivy.require('2.0.0')   from kivy.app import App from kivy.base import EventLoop from kivy.core.window import Window from kivy.graphics import RenderContext, Color, Rectangle from kivy.uix.widget import Widget from kivy.uix.boxlayout import BoxLayout from kivy.uix.image import Image from kivy.uix.label import Label   Window.clearcolor = (1, 1, 1, 1) Window.size = (563, 1001) Window.top, Window.left = 30, 2900   fs = ''' $HEADER$ void main(void) {     gl_FragColor = vec4(1.0,0.0,1.0,1.0) * texture2D(texture0, tex_coord0); } '''     class CustomWidget(Widget):     def __init__(self, **kwargs):         # Before doing anything, ensure the windows exist.         EventLoop.ensure_window()           self.texture()  # drawing         self.bind(size=self.update_pos)  # get real size of class CustomWidget         super(CustomWidget, self).__init__(**kwargs)       def update_pos(self, instance, value):         # centered image         self.rect.pos = ((self.size[0] - self.rect.size[0]) / 2,                          (self.size[1] - self.rect.size[1]) / 2)       def texture(self, *args):         # all the necessary information for drawing         self.canvas = RenderContext()           # set shader.fs         self.canvas.shader.fs = fs         print(self.canvas.shader.fs)         with self.canvas:             Color(1, 1, 1)             self.rect = Rectangle(size=(200, 200), source='football.png', pos=self.center)           # the default vertex shader         self.canvas['projection_mat'] = Window.render_context['projection_mat']     class FantasticApp(App):     def build(self):         bl = BoxLayout(orientation='vertical')           bl.add_widget(Image(source='./football.png'))         bl.add_widget(Label(text='texture', color='black', font_size=50))         bl.add_widget(CustomWidget())         return bl     FantasticApp().run()   # the header for the fragment Shader # ------------ # | $HEADER$ | # ------------   # #ifdef GL_ES #     precision highp float; # #endif # # /* Outputs from the vertex shader */ # varying vec4 frag_color; # varying vec2 tex_coord0; # # /* uniform texture samplers */ # uniform sampler2D texture0; # # uniform mat4 frag_modelview_mat;   Colored by Color Scripter

cs

/// 출력

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* 실행환경: Microsoft Windows 10 Homes
* 인터프리터: 파이썬(Python 3.9)

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