BABYLON.Effect.ShadersStore["customVertexShader"]= "\r\n"+
"precision highp float;\r\n"+

"attribute vec3 position;\r\n"+
"attribute vec2 uv;\r\n"+

"uniform mat4 worldViewProjection;\r\n"+

"varying vec2 vUV;\r\n"+

"void main(void) {\r\n"+
" gl_Position = worldViewProjection * vec4(position, 1.0);\r\n"+

" vUV = uv;\r\n"+
"}\r\n";

BABYLON.Effect.ShadersStore[
 
"customFragmentShader"]= "\r\n"+
"precision highp float;\r\n"+

"varying vec2 vUV;\r\n"+

"uniform sampler2D textureSampler;\r\n"+

"void main(void) {\r\n"+
" gl_FragColor = texture2D(textureSampler, vUV);\r\n"+
"}\r\n";


//----------------------------------------------------------------------
var shaderMaterial = new
 
 BABYLON.ShaderMaterial("shader", scene, {
vertex: "custom",
fragment: "custom",
},
{
attributes: ["position", "normal", "uv"],
uniforms: ["world", "worldView", "worldViewProjection", "view", "projection"]
});

var mainTexture = new BABYLON.Texture("amiga.jpg", scene);
shaderMaterial.setTexture("textureSampler", mainTexture);