o3djs.material.prepareMaterial = function(pack,
                                              viewInfo,
                                              material,
                                              opt_effectType) {
      // Assume we want the performance list
      var drawList = viewInfo.performanceDrawList;
      // First check if we have a tag telling us that it is or is not
      // transparent
      if (!material.drawList) {
        var param = material.getParam('collada.transparent');
        if (param && param.className == 'o3d.ParamBoolean') {
          material.drawList = param.value ? viewInfo.zOrderedDrawList :
                                            viewInfo.performanceDrawList;
        }
      }
      // If the material has no effect, try to build shaders for it.
      if (!material.effect) {
        // If the user didn't pass an effect type in see if one was stored there
        // by our importer.
        if (!opt_effectType) {
          // Retrieve the lightingType parameter from the material, if any.
          var lightingType = o3djs.effect.getColladaLightingType(material);
          if (lightingType) {
            opt_effectType = lightingType;
          }
        }
        if (opt_effectType) {
          o3djs.material.attachStandardEffect(pack,
                                              material,
                                              viewInfo,
                                              opt_effectType);
          // For collada common profile stuff guess what drawList to use. Note: We
          // can only do this for collada common profile stuff because we supply
          // the shaders and therefore now the inputs and how they are used.
          // For other shaders you've got to do this stuff yourself. On top of
          // that this is a total guess. Just because a texture has no alpha
          // it does not follow that you don't want it in the zOrderedDrawList.
          // That is application specific. Here we are just making a guess and
          // hoping that it covers most cases.
          if (material.drawList == null) {
            // Check the common profile params.
            var result = hasNonOneAlpha(material, 'diffuse');
            if (!result.found) {
              result = hasNonOneAlpha(material, 'emissive');
            }
            if (result.nonOneAlpha) {
              drawList = viewInfo.zOrderedDrawList;
            }
          }
        }
      }
      if (!material.drawList) {
        material.drawList = drawList;
      }
    };