RenderMeshInstanced: transparent material not working on Quest 3

Unity Engine
,
1

Hi all,

I stumbled upon the following issue: I want to draw several objects by RenderMeshInstanced in my Update()-routine. For this, I set up a material. The material can be transparent in some cases. When running the game in Unity, the transparent objects are shown transparent as they should, but on the Quest 3 they are always solid.
Does anyone know what to change for transparent colors to work on the Quest? I set up my material as follows:

//clr is my color which can be transparent
//mymat is the material to be rendered

mymat = new Material(Shader.Find("Standard"));

if(clr.a < 1)  //transparent
{
    mymat.SetOverrideTag("RenderType", "Transparent");
    mymat.SetInt("_SrcBlend", (int)UnityEngine.Rendering.BlendMode.SrcAlpha);
    mymat.SetInt("_DstBlend", (int)UnityEngine.Rendering.BlendMode.OneMinusSrcAlpha);
    mymat.SetInt("_ZWrite", 0);
    mymat.DisableKeyword("_ALPHATEST_ON");
    mymat.EnableKeyword("_ALPHABLEND_ON");
    mymat.DisableKeyword("_ALPHAPREMULTIPLY_ON");
    mymat.renderQueue = (int)UnityEngine.Rendering.RenderQueue.Transparent;

    MaterialMarker.SetFloat("_Mode", 3.0f); //transparent
}
//else not transparent, nothing to change
        
//always: assign color and enable instancing
mymat.SetColor("_Color", clr);
mymat.enableInstancing = true;

rp = new RenderParams(mymat);

Thanks a lot and best regards!

2

Nevermind, I created two materials in the editor: one transparent and one opaque. And I switch between those two in the code instead of adjusting one material. That works :slight_smile:

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