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Fix tile edge artefacts

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This commit is contained in:
Tom Payne
2012-07-17 22:54:58 +02:00
parent 6abcc56789
commit 7dc2884498
2 changed files with 12 additions and 6 deletions
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10
src/ol/webgl/tilelayerrenderer.js
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@@ -270,11 +270,13 @@ ol.webgl.TileLayerRenderer.prototype.redraw = function() {
if (goog.isNull(this.arrayBuffer_)) {
var arrayBuffer = gl.createBuffer();
gl.bindBuffer(goog.webgl.ARRAY_BUFFER, arrayBuffer);
var textureOffsetX = 0.5 / tileSize.width;
var textureOffsetY = 0.5 / tileSize.height;
gl.bufferData(goog.webgl.ARRAY_BUFFER, new Float32Array([
0, 0, 0, 1,
1, 0, 1, 1,
0, 1, 0, 0,
1, 1, 1, 0
0, 0, 0 + textureOffsetX, 1 + textureOffsetY,
1, 0, 1 + textureOffsetX, 1 + textureOffsetY,
0, 1, 0 + textureOffsetX, 0 + textureOffsetY,
1, 1, 1 + textureOffsetX, 0 + textureOffsetY
]), goog.webgl.STATIC_DRAW);
this.arrayBuffer_ = arrayBuffer;
} else {