gl-plane/src/shaders/trangle-fragment.ts

Draw a plane with texture

export default `#extension GL_OES_standard_derivatives : enable

precision highp float;
#define GLSLIFY 1

uniform sampler2D texture;
uniform float opacity;
varying vec2 f_uv;

void main() {
  if(opacity == 0.0) {
    discard;
  }
   gl_FragColor = opacity * texture2D(texture,vec2(f_uv.x,1.0 - f_uv.y));
}
`