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@@ -111,7 +111,7 @@ class Terrain extends hxsl.Shader {
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var viewNS = normalize(camera.position - transformedPosition) * TBN;
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viewNS.xy /= viewNS.z;
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viewNS.x *= -1;
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- var numLayers = mix(float(maxStep), float(minStep), viewNS.dot(terrainNormal));
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+ var numLayers = mix(float(maxStep), float(minStep), saturate(viewNS.dot(terrainNormal)));
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var layerDepth = 1.0 / numLayers;
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var curLayerDepth = 0.;
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var delta = (viewNS.xy * parallaxAmount / primSize) / numLayers;
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