Offset outline Z-value #47
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輪郭線幅テクスチャ、輪郭線幅値に最低値を入れると
0.0000004mの輪郭線幅が実現できる。輪郭線幅がそのような極小値をとるときに、 Z-Fighting が起こりやすい。
この問題は Z Buffer の精度問題なので、輪郭線幅にヒューリスティックな閾値を決めるのではなく、 Z 値をずらして解決したい。