Unity3D shader realizes rounded rectangle and circular area_unity already has a rectangle with four sides how to cut rounded corners_scott.cgi’s blog

class=”htmledit_views”> You can use Marc Edwards’ hyperelliptic equation directly calculates the pixel areas of rounded rectangles and circles, and can use parameters to adjust the shape area. x, y are the coordinates, 5 is the larger the degree of radians, the closer to the rectangle, 60 is the radius coefficient, and normalization conversion is required in the shader. Use this formula to implement the shader as follows: Shader “Custom/Vignette” { Properties { _fade(“Opacity”, float) = 1 _intensity (“Intensity”, float) = 1 _offsetX (“OffsetX”, float) = 0 _offsetY (“OffsetY”, float) = 0 _width(“Width”, float) = 1 _height (“Height”, float) = 1 _ellipse(“Ellipse”, float) = 4 _fuzzy(“Fuzzy”, float) = 1 } SubShader { Tags { “QUEUE”=”Transparent” “RenderType”=”Transparent” } pass { ZWrite Off Blend SrcAlpha OneMinusSrcAlpha CGPROGRAM #pragma vertex vert #pragma fragment frag #include “UnityCG.cginc” struct v2f { float4 vertex : POSITION; float2 texcoord : TEXCOORD0; }; struct appdata_t { float4 vertex : POSITION; }; float _offsetX; float_offsetY; float _fade; float_intensity; float_width; float_height; float _ellipse; float_fuzzy; v2f vert(in appdata_t v) { float4 tmpvar_2 = mul(UNITY_MATRIX_MVP, v.vertex); float2 tmpvar_3 = (tmpvar_2.xy / tmpvar_2.w); float2 tmpvar_1; tmpvar_1.x = (tmpvar_3.x + _offsetX); tmpvar_1.y = (tmpvar_3.y + _offsetY) * 2.5; v2f o; o.vertex = tmpvar_2; o.texcoord =…