【实现100个unity特效】shader实现3D物品闪光和描边效果

最终效果

shader代码

Shader "SurvivalTemplatePro/Interactable"
{
	Properties
	{
		_ASEOutlineColor( "Outline Color", Color ) = (0.8962264,0.7633126,0.2832412,0)
		_ASEOutlineWidth( "Outline Width", Float ) = 0.01
		_Cutoff( "Mask Clip Value", Float ) = 0.5
		_Color("Base Color", Color) = (1,1,1,0)
		_MainTex("Base Color Map", 2D) = "white" {}
		_MaskMap("Mask Map", 2D) = "white" {}
		[Normal]_BumpMap("Normal Map", 2D) = "bump" {}
		_LineMap("Line Map", 2D) = "white" {}
		[HDR]_LineColor("Line Color", Color) = (1.991077,1.306363,0.3513666,1)
		_LineAlpha("Line Alpha", Range( 0 , 1)) = 1
		_LineSize("Line Size", Range( 0.1 , 2)) = 1
		_LineSpeed("Line Speed", Range( 0.1 , 2)) = 1
		[HideInInspector] _texcoord( "", 2D ) = "white" {}
		[HideInInspector] __dirty( "", Int ) = 1
	}

	SubShader
	{
		Tags{ }
		Cull Front
		CGPROGRAM
		#pragma target 3.0
		#pragma surface outlineSurf Outline  keepalpha noshadow noambient novertexlights nolightmap nodynlightmap nodirlightmap nometa noforwardadd vertex:outlineVertexDataFunc 
		
		
		
		
		struct Input {
			half filler;
		};
		float4 _ASEOutlineColor;
		float _ASEOutlineWidth;
		void outlineVertexDataFunc( inout appdata_full v, out Input o )
		{
			UNITY_INITIALIZE_OUTPUT( Input, o );
			v.vertex.xyz += ( v.normal * _ASEOutlineWidth );
		}
		inline half4 LightingOutline( SurfaceOutput s, half3 lightDir, half atten ) { return half4 ( 0,0,0, s.Alpha); }
		void outlineSurf( Input i, inout SurfaceOutput o )
		{
			o.Emission = _ASEOutlineColor.rgb;
			o.Alpha = 1;
		}
		ENDCG
		

		Tags{ "RenderType" = "TransparentCutout"  "Queue" = "Geometry+0" "IsEmissive" = "true"  }
		Cull Back
		CGPROGRAM
		#include "UnityShaderVariables.cginc"
		#pragma target 3.0
		#pragma surface surf Standard keepalpha addshadow fullforwardshadows exclude_path:deferred 
		struct Input
		{
			float2 uv_texcoord;
			float3 worldPos;
		};

		uniform sampler2D _BumpMap;
		uniform float4 _BumpMap_ST;
		uniform float4 _Color;
		uniform sampler2D _MainTex;
		uniform float4 _MainTex_ST;
		uniform float _LineAlpha;
		uniform sampler2D _LineMap;
		uniform float _LineSpeed;
		uniform float _LineSize;
		uniform float4 _LineColor;
		uniform sampler2D _MaskMap;
		uniform float4 _MaskMap_ST;
		uniform float _Cutoff = 0.5;

		void surf( Input i , inout SurfaceOutputStandard o )
		{
			float2 uv_BumpMap = i.uv_texcoord * _BumpMap_ST.xy + _BumpMap_ST.zw;
			float3 tex2DNode2 = UnpackNormal( tex2D( _BumpMap, uv_BumpMap ) );
			float3 NormalMap266 = tex2DNode2;
			o.Normal = NormalMap266;
			float2 uv_MainTex = i.uv_texcoord * _MainTex_ST.xy + _MainTex_ST.zw;
			float4 tex2DNode1 = tex2D( _MainTex, uv_MainTex );
			o.Albedo = ( _Color * tex2DNode1 ).rgb;
			float2 temp_cast_1 = (_LineSpeed).xx;
			float3 ase_vertex3Pos = mul( unity_WorldToObject, float4( i.worldPos , 1 ) );
			float2 temp_cast_2 = (( ase_vertex3Pos.x * _LineSize )).xx;
			float2 panner243 = ( _Time.y * temp_cast_1 + temp_cast_2);
			float4 temp_output_119_0 = ( tex2D( _LineMap, panner243 ) * _LineColor );
			float3 desaturateInitialColor282 = float3( (tex2DNode2).xy ,  0.0 );
			float desaturateDot282 = dot( desaturateInitialColor282, float3( 0.299, 0.587, 0.114 ));
			float3 desaturateVar282 = lerp( desaturateInitialColor282, desaturateDot282.xxx, 1.0 );
			float4 lerpResult248 = lerp( float4( 0,0,0,0 ) , ( float4( 0,0,0,0 ) * temp_output_119_0 ) , float4( saturate( desaturateVar282 ) , 0.0 ));
			float2 uv_MaskMap = i.uv_texcoord * _MaskMap_ST.xy + _MaskMap_ST.zw;
			float4 tex2DNode3 = tex2D( _MaskMap, uv_MaskMap );
			float4 lerpResult278 = lerp( float4( 0,0,0,0 ) , ( lerpResult248 + ( temp_output_119_0 * float4( 0.245283,0.245283,0.245283,0 ) ) ) , tex2DNode3.g);
			float4 Line32 = ( _LineAlpha * lerpResult278 );
			o.Emission = Line32.rgb;
			o.Metallic = tex2DNode3.r;
			o.Smoothness = tex2DNode3.a;
			o.Occlusion = tex2DNode3.g;
			o.Alpha = 1;
			clip( tex2DNode1.a - _Cutoff );
		}

		ENDCG
	}
	Fallback "Diffuse"
}

线状映射图片

配置，按该shader新增材质

Outline Width控制描边
Line Speed控制闪光速度
当然，还可以修改对应的颜色

代码控制物品描边显示隐藏

using UnityEngine;

//拾取脚本
public class PickUpController : MonoBehaviour
{
    public float maxDistance = 3f; // 最大检测距离
    public LayerMask layerMask; // 检测层级

    public GameObject uiText; // 显示物品名称的 UI 文本组件

    Transform lastHitInfo;
    void Start()
    {
        uiText.SetActive(false); // 初始状态下 UI 文本组件不可见
    }

    void Update()
    {
        // 从相机屏幕中心向前发射一条射线
        Ray ray = Camera.main.ViewportPointToRay(new Vector3(0.5f, 0.5f, 0f));

        RaycastHit hitInfo;
        if (Physics.Raycast(ray, out hitInfo, maxDistance, layerMask))
        {
            lastHitInfo = hitInfo.transform;
            uiText.SetActive(true);

            //设置物品描边
            SetOutline(lastHitInfo, 0.01f);

            //hitInfo.transform.CompareTag("PickUpItem") 需要的话可以再加标签判断
            if (Input.GetKeyDown(KeyCode.E))
            {
                PickUpItem(lastHitInfo);
            }
        }
        else
        {
            uiText.SetActive(false);
            if (lastHitInfo != null) SetOutline(lastHitInfo, 0f);
        }

    }

    // 拾取物体逻辑
    void PickUpItem(Transform item)
    {
        //。。。
    }

    //设置物品描边
    void SetOutline(Transform obj, float width)
    {
        Renderer renderer = obj.GetComponent<Renderer>();
        if (renderer != null)
        {
            Material material = renderer.material;
            material.SetFloat("_ASEOutlineWidth", width);
        }

        foreach (Transform child in obj)
        {
            SetOutline(child, width);
        }
    }
}

效果演示

完结

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一位在小公司默默奋斗的开发者，出于兴趣爱好，最近开始自学unity，闲暇之余，边学习边记录分享，站在巨人的肩膀上，通过学习前辈们的经验总是会给我很多帮助和启发！php是工作，unity是生活！如果你遇到任何问题，也欢迎你评论私信找我， 虽然有些问题我也不一定会，但是我会查阅各方资料，争取给出最好的建议，希望可以帮助更多想学编程的人，共勉~