const React = require("react-native"); const GL = require("gl-react-native"); const shaders = GL.Shaders.create({ add: { frag: ` precision highp float; varying vec2 uv; uniform sampler2D t1; uniform sampler2D t2; void main () { vec4 c1 = texture2D(t1, uv); vec4 c2 = texture2D(t2, uv); gl_FragColor = c1 + c2; } ` } }); module.exports = GL.createComponent( ({ width, height, children }) => { if (!children || children.length !== 2) throw new Error("You must provide 2 children to Add"); const [t1, t2] = children; return ; }, { displayName: "Add" });