89 lines
2.6 KiB
Plaintext
89 lines
2.6 KiB
Plaintext
Shader "PXR_Debugger/Tool/Ruler"
|
|
{
|
|
Properties
|
|
{
|
|
_Width ("Tick Width", Float) = 1
|
|
_Height ("Tick Height", Float) = 0.5
|
|
_MeshLength ("Mesh Length", Float) = 1.0 // 新增属性，表示网格长度
|
|
_Divisor ("Tick Thickness Divisor", Float) = 5.0
|
|
_BackgroundColor ("Background Color", Color) = (1,1,1,1)
|
|
}
|
|
SubShader
|
|
{
|
|
Tags { "RenderType"="Opaque" }
|
|
LOD 100
|
|
|
|
Pass
|
|
{
|
|
CGPROGRAM
|
|
#pragma vertex vert
|
|
#pragma fragment frag
|
|
|
|
#include "UnityCG.cginc"
|
|
|
|
float _Width;
|
|
float _Height;
|
|
float _MeshLength; // 新增变量，表示网格长度
|
|
float _Divisor;
|
|
float4 _BackgroundColor;
|
|
|
|
struct appdata
|
|
{
|
|
float4 vertex : POSITION;
|
|
float2 uv : TEXCOORD0;
|
|
};
|
|
|
|
struct v2f
|
|
{
|
|
float2 uv : TEXCOORD0;
|
|
float4 vertex : SV_POSITION;
|
|
};
|
|
|
|
v2f vert (appdata v)
|
|
{
|
|
v2f o;
|
|
o.vertex = UnityObjectToClipPos(v.vertex);
|
|
o.uv = v.uv;
|
|
return o;
|
|
}
|
|
|
|
fixed4 frag (v2f i) : SV_Target
|
|
{
|
|
// 计算刻度数量
|
|
float _NumOfTicks = 100.0;
|
|
float numOfTicks = _MeshLength * _NumOfTicks;
|
|
float maxTickWidth = 0.001;
|
|
|
|
// 其余代码保持不变
|
|
float tickWidth = _MeshLength*_Width;
|
|
float tickHeight = _Height;
|
|
|
|
float tickIndex = round(i.uv.x * _MeshLength / maxTickWidth);
|
|
float remainder = fmod(tickIndex, _Divisor);
|
|
bool shouldBeThick = remainder == 0.0;
|
|
|
|
if (shouldBeThick) {
|
|
tickWidth *= 2.0;
|
|
tickHeight = _ScreenParams.y;
|
|
}
|
|
|
|
float tickHalfWidth = tickWidth * 0.5;
|
|
float tickCoordX = (tickIndex * maxTickWidth);
|
|
|
|
fixed4 color = _BackgroundColor;
|
|
|
|
if (i.uv.x * _MeshLength > tickCoordX - tickHalfWidth &&
|
|
i.uv.x * _MeshLength < tickCoordX + tickHalfWidth &&
|
|
i.uv.y * _ScreenParams.y > _ScreenParams.y - tickHeight)
|
|
{
|
|
color = fixed4(0, 0, 0, 1);
|
|
}
|
|
|
|
return color;
|
|
}
|
|
ENDCG
|
|
}
|
|
}
|
|
FallBack "Diffuse"
|
|
}
|