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@@ -2092,7 +2092,7 @@ THREE.GLTFLoader = ( function () {
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}
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- var alphaMode = materialDef.alphaMode;
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+ var alphaMode = materialDef.alphaMode || ALPHA_MODES.OPAQUE;
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if ( alphaMode === ALPHA_MODES.BLEND ) {
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@@ -2101,9 +2101,21 @@ THREE.GLTFLoader = ( function () {
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// See: https://github.com/mrdoob/three.js/issues/17706
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materialParams.depthWrite = false;
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- } else if ( alphaMode === ALPHA_MODES.MASK ) {
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+ } else {
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+
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+ materialParams.transparent = false;
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+
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+ if ( alphaMode === ALPHA_MODES.MASK ) {
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+
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+ materialParams.alphaTest = materialDef.alphaCutoff !== undefined ? materialDef.alphaCutoff : 0.5;
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- materialParams.alphaTest = materialDef.alphaCutoff !== undefined ? materialDef.alphaCutoff : 0.5;
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+ } else {
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+
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+ // for ALPHA_MODES.OPAQUE, we use a negative alphaTest value to enable alphaTesting,
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+ // causing the test to always be passed, but also replacing any alpha value with 1.0.
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+ materialParams.alphaTest = - 0.5;
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+
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+ }
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}
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Mr.doob