Feature Request HDRP Decal Projector Material Property Block

Hello,

I request that the Material Property Block in the DecalSystem.DecalSet can get provided via HDRP Decal Projector.

Current Problem:
Can't have variations of a decal based on the same material. Every time a slightly different decal variation is need the material needs to be cloned.

Solution:
Giving DecalProjector a MaterialPropertyBlock property and have it replace the default MaterialPropertyBlock in DecalSystem.DecalSet when not null.

I'm sure this is not a new request. Is there context as to why this hasn't been implemented already?

 

Any update on this? @chap-unity

 

I apologize for resurrecting this thread. How would you go about accessing this cloned material? Where would it be stored and how could you utilize it?

**EDIT**
I did figure out how it can be utilized. Although does this temporary material clone get stored anywhere or does it get removed/deleted once the gameobject is removed from the scene?

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

using UnityEngine.Rendering.HighDefinition;

public class Bullethole_Glow : MonoBehaviour

{

    public DecalProjector _DecalProjectorComponent;

    public bool isGlowing;

    public float glowTime;

    public float minGlowTime;

    public float maxGlowTime;

    public float _GlowIntensity;

    public float Duration = 1;

    // Start is called before the first frame update

    void Start()

    {

        _DecalProjectorComponent = gameObject.GetComponent<DecalProjector>();

        //Create new material instance for the decal projector

        _DecalProjectorComponent.material = new Material(_DecalProjectorComponent.material);

    }

    // Update is called once per frame

    void Update()

    {

        GlowEffectFade();

    }

    private void GlowEffectFade()

    {

        glowTime = Mathf.Clamp(minGlowTime, 0, maxGlowTime);

        _DecalProjectorComponent.material.SetFloat("_GlowIntensity", _GlowIntensity);

        if (glowTime < _GlowIntensity)

        {

            isGlowing = true;

            glowTime += Time.deltaTime / Duration;

            if (isGlowing!)

            {

                if (_GlowIntensity > 0)

                {

                    _GlowIntensity -= glowTime;

                }

            }

        }

        else

        {

            isGlowing = false;

            _GlowIntensity = 0;

        }

    }

}

 

@Remy_Unity

So the Destroy method will in fact be the quickest, surefire method in your opinion? My decals all get deleted via the Destroy method after an amount of time, that is also adjustable.