Alpha will not change in Hololens, only in Editor.

GhostlyDonut5

Hello, I've been having a lot of trouble changing the Alpha in the Hololens emulator and the hololens itself. I've tried many different materials, all of the Holotoolkit ones and Standard Specular. AND Here is my code:

    GameObject eye;
    Material mat;
    Material mat2;
    Shader initShader;
    public MovieTexture[] tex;
    Color col;
    bool faded;
    float colVal = 2.5f;
    public float currColVal;
    public int texNum;
    public float max_Dist;
    public bool proximity;
    //public float appear_rate = 0.05f;
    //public float dissappear_rate = 0.1f;


   void Start()
    {
        mat = GetComponent<Renderer>().material;
        mat2 = GetComponent<Renderer>().material;
        currColVal = colVal;
        eye = GameObject.FindGameObjectWithTag("MainCamera");
        faded = false;
        //ChangeRenderingModeToTransparent();
        //mat.shader = Shader.Find("Standard (Specular setup)");
        //proximity = true;
    }

    void FixedUpdate()
    {
        //Changes based off of Proxemics script
        if(proximity == true && faded == false)
        {
            ChangeRenderingModeToFade();
            StartCoroutine(Dissappear());
            faded = true;
        }

        if(proximity == false && faded == true)
        {
            StartCoroutine(Appear());
            ChangeRenderingModeToOpaque();
            faded = false;
        }
}

    public IEnumerator Appear()
    {

        for (float j = 0f; j <= colVal; j += 0.1F)
        {
            col = mat.color;
            col.a = j;
            //col.r = j;
            //col.g = j;
            //col.b = j;
            mat.color = col;
            currColVal = j;
            yield return null;
            //yield return new WaitForSeconds(0.5f);
        }

    }


    public IEnumerator Dissappear()
    {     
            for (float i = colVal; i >= 0f; i -= 0.1f)
            {
                col = mat.color;
                col.a = i;
                //col.r = i;
                //col.g = i;
                //col.b = i;
                mat.color = col;
                currColVal = i;
                yield return null;
                //yield return new WaitForSeconds(0.5f);
            }
    }


    public void ChangeRenderingModeToOpaque()
    {
        mat.SetFloat("_Mode", 0);
        mat.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.SrcAlpha);
        mat.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);
        mat.SetInt("_ZWrite", 0);
        mat.DisableKeyword("_ALPHATEST_ON");
        mat.EnableKeyword("_ALPHABLEND_ON");
        mat.DisableKeyword("_ALPHAPREMULTIPLY_ON");
        mat.renderQueue = 3000;
    }

    public void ChangeRenderingModeToFade()
    {
        mat.SetFloat("_Mode", 2);
        mat.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.SrcAlpha);
        mat.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);
        mat.SetInt("_ZWrite", 0);
        mat.DisableKeyword("_ALPHATEST_ON");
        mat.EnableKeyword("_ALPHABLEND_ON");
        mat.DisableKeyword("_ALPHAPREMULTIPLY_ON");
        mat.renderQueue = 3000;
    }

GhostlyDonut5

Bump. Any help? Why does this fade in-editor but not the Hololens? I assume the shaders are the problem, but I've tried every shader I could find. Standard Specular I thought would work, but to no avail, I tried every Holotoolkit shader, even the galaxy explorer shaders.

GhostlyDonut5

Still having trouble with this question. Any ideas???

GhostlyDonut5

Any help would be greatly appreciated. Do I need to reword the question?

prasadl

I'm facing the same trouble. Even though alpha value manipulation did work very well in the editor, it doesn't work in the HoloLens or in the emulator. I want to fade out an Object. Please, can anybody help?

DrNeurosurg

What shader are you using ? Try HoloToolkit's VertexLit Configarble Transparent Shader ... It works for me

jbienzms

Also check your quality settings. Edit -> Project Settings -> Quality if I remember correctly. The toolkit sets up a very fast rendering configuration for the HoloLens but several features are turned off. The times I've seen a discrepancy between the editor and the device it's usually due to these quality settings.