Clear framebuffer before writing tiles

2012-07-18 00:09:54 +02:00
parent 4ca1fd00c7
commit a421943eb1
1 changed files with 2 additions and 0 deletions
--- a/src/ol/webgl/tilelayerrenderer.js
+++ b/src/ol/webgl/tilelayerrenderer.js
@@ -269,6 +269,8 @@ ol.webgl.TileLayerRenderer.prototype.redraw = function() {
    gl.bindFramebuffer(goog.webgl.FRAMEBUFFER, this.framebuffer_);
  }

+  gl.clearColor(0, 0, 0, 0);
+  gl.clear(goog.webgl.COLOR_BUFFER_BIT);
  gl.disable(goog.webgl.BLEND);

  var program = map.getProgram(this.fragmentShader_, this.vertexShader_);