馮樂樂《shader入門精要》備忘錄

1.廣告牌 頂點函數 float3 center = float3(0,0,0); float3 viewer = mul(unity_WorldToObject,float4(_WorldSpaceCameraPos,1)); float3 normalDir = viewer - center; normalDir.y = normalDir.y * _VerticalBillboarding

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