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Use hit-detection images

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tsauerwein
2014-12-18 15:24:05 +01:00
parent 3ef61fa1c5
commit cf6dd38866
5 changed files with 128 additions and 41 deletions
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7
src/ol/webgl/context.js
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@@ -282,6 +282,8 @@ ol.webgl.Context.prototype.handleWebGLContextLost = function() {
goog.object.clear(this.programCache_);
this.currentProgram_ = null;
this.hitDetectionFramebuffer_ = null;
this.hitDetectionTexture_ = null;
this.hitDetectionRenderbuffer_ = null;
};
@@ -304,8 +306,7 @@ ol.webgl.Context.prototype.initHitDetectionFramebuffer_ = function() {
var texture = gl.createTexture();
gl.bindTexture(gl.TEXTURE_2D, texture);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR);
gl.texParameteri(
gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_NEAREST);
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR);
gl.texImage2D(
gl.TEXTURE_2D, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.UNSIGNED_BYTE, null);
@@ -322,6 +323,8 @@ ol.webgl.Context.prototype.initHitDetectionFramebuffer_ = function() {
gl.bindFramebuffer(gl.FRAMEBUFFER, null);
this.hitDetectionFramebuffer_ = framebuffer;
this.hitDetectionTexture_ = texture;
this.hitDetectionRenderbuffer_ = renderbuffer;
};