유니티 캐릭터 트레일 효과 만들기, 분신 효과

        if (Input.GetKeyDown(KeyCode.R) && !isTrailActive)
        {
            Dash();
            isTrailActive = true;
            StartCoroutine(ActivateTrail(activeTime));
            isTrailActive = false;
        }

 

    IEnumerator ActivateTrail(float timeActive)
    {
        while (timeActive > 0)
        {
            timeActive -= meshRefreshRate;

            if(skinnedMeshRenderers == null)
            {
                skinnedMeshRenderers = GetComponentsInChildren<SkinnedMeshRenderer>();
            }

            for(int i = 0; i < skinnedMeshRenderers.Length; i++)
            {
                GameObject gObj = new GameObject();
                gObj.transform.SetPositionAndRotation(transform.position, transform.rotation);

                MeshRenderer mr = gObj.AddComponent<MeshRenderer>();
                MeshFilter mf = gObj.AddComponent<MeshFilter>();

                Mesh mesh = new Mesh();
                skinnedMeshRenderers[i].BakeMesh(mesh);

                mf.mesh = mesh;
                mr.material = characterMaterial;

                Destroy(gObj, meshDestroyDelay);
            }

            yield return new WaitForSeconds(meshRefreshRate);
        }
    }

 

 

 

 

 

    public Material characterMaterial;
    public string shaderVarRef;
    public float shaderVarRate = 0.1f;
    public float shaderVarRefreshRate = 0.05f;


IEnumerator ActivateTrail(float timeActive)
    {
        while (timeActive > 0)
        {
            timeActive -= meshRefreshRate;

            if(skinnedMeshRenderers == null)
            {
                skinnedMeshRenderers = GetComponentsInChildren<SkinnedMeshRenderer>();
            }

            for(int i = 0; i < skinnedMeshRenderers.Length; i++)
            {
                GameObject gObj = new GameObject();
                gObj.transform.SetPositionAndRotation(transform.position, transform.rotation);

                MeshRenderer mr = gObj.AddComponent<MeshRenderer>();
                MeshFilter mf = gObj.AddComponent<MeshFilter>();

                Mesh mesh = new Mesh();
                skinnedMeshRenderers[i].BakeMesh(mesh);

                mf.mesh = mesh;
                mr.material = characterMaterial;

                StartCoroutine(AnimateMaterialFloat(mr.material, 0 ,shaderVarRate ,shaderVarRefreshRate));

                Destroy(gObj, meshDestroyDelay);
            }
            yield return new WaitForSeconds(meshRefreshRate);
        }
    }

 

IEnumerator AnimateMaterialFloat(Material mat, float goal, float rate, float refreshRate)
    {
        float valueToAnimate = mat.GetFloat(shaderVarRef);

        while (valueToAnimate > goal)
        {
            valueToAnimate -= rate;
            mat.SetFloat(shaderVarRef, valueToAnimate);
            yield return new WaitForSeconds(refreshRate);
        }
    }