相关疑难解决方法(0)

我想在立方体上使用6种不同的纹理,每边一个,但是找不到错误.这是我目前的代码:

   var texturen = new Array();
function initTexture(sFilename,texturen)  
{
  var anz = texturen.length;
  texturen[anz] = gl.createTexture();
  texturen[anz].image = new Image();
  texturen[anz].image.onload = function()    
  {
  gl.bindTexture(gl.TEXTURE_2D, texturen[anz]);
  gl.pixelStorei(gl.UNPACK_FLIP_Y_WEBGL, false);
  gl.texImage2D
  (gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, texturen[anz].image);
  gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
  gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
  gl.bindTexture(gl.TEXTURE_2D, null);
  }
  texturen[anz].image.src = sFilename;
} 


var mvMatrix = mat4.create();
var mvMatrixStack = [];
var pMatrix = mat4.create();

function mvPushMatrix() {
    var copy = mat4.create();
    mat4.set(mvMatrix, copy);
    mvMatrixStack.push(copy);
}

function mvPopMatrix() {
    if (mvMatrixStack.length == 0) {
        throw …