From 1100cc67da4d4a09e253ddc15ab4b0ecafd69caf Mon Sep 17 00:00:00 2001
From: Bruno Binet <bruno.binet@gmail.com>
Date: Wed, 12 Jun 2013 10:29:50 +0200
Subject: [PATCH] Get opacity from layerState in webglmaprenderer

instead of getting it from layer.getOpacity().
Fix the issue of changing opacity which didn't work with LayerGroups in webgl.
---
 src/ol/renderer/webgl/webglmaprenderer.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ol/renderer/webgl/webglmaprenderer.js b/src/ol/renderer/webgl/webglmaprenderer.js
index 54cfe1a895..d3d117e174 100644
--- a/src/ol/renderer/webgl/webglmaprenderer.js
+++ b/src/ol/renderer/webgl/webglmaprenderer.js
@@ -645,7 +645,7 @@ ol.renderer.webgl.Map.prototype.renderFrame = function(frameState) {
       gl.uniformMatrix4fv(locations.u_colorMatrix, false,
           layerRenderer.getColorMatrix());
     }
-    gl.uniform1f(locations.u_opacity, layer.getOpacity());
+    gl.uniform1f(locations.u_opacity, layerState.opacity);
     gl.bindTexture(goog.webgl.TEXTURE_2D, layerRenderer.getTexture());
     gl.drawArrays(goog.webgl.TRIANGLE_STRIP, 0, 4);