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Merge pull request #4301 from tfelix/feat-invert-geo-mask
Adds invertAlpha flag to GeometryMask
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commit
87a83d4ff8
1 changed files with 23 additions and 4 deletions
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@ -36,6 +36,16 @@ var GeometryMask = new Class({
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* @since 3.0.0
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*/
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this.geometryMask = graphicsGeometry;
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/**
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* Similiar to the BitmapMasks invertAlpha setting this to true will then hide all pixels
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* drawn to the Geometry Mask.
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*
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* @name Phaser.Display.Masks.GeometryMask#invertAlpha
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* @type {boolean}
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* @since 3.16.0
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*/
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this.invertAlpha = false;
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},
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/**
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@ -82,7 +92,16 @@ var GeometryMask = new Class({
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// Use stencil buffer to affect next rendering object
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gl.colorMask(true, true, true, true);
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if (this.invertAlpha)
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{
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gl.stencilFunc(gl.NOTEQUAL, 1, 1);
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}
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else
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{
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gl.stencilFunc(gl.EQUAL, 1, 1);
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}
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gl.stencilOp(gl.KEEP, gl.KEEP, gl.KEEP);
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},
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