0312 增加椭圆形遮罩

hch

3 天以前 74a93a68169d488ed2d676fcce5a4ba257dcd38f

 Shader/GUI_EllipseMask.shader

@@ -162,6 +162,8 @@
            fixed4 frag(v2f i) : SV_Target
            {
                fixed4 color = tex2D(_MainTex, i.texcoord) * i.color;
                // 遮罩本身不显示颜色，只用于模板测试
                color.a = 0;
                return color;
            }
            ENDCG