koobas.hobune.stream
Changing an HDRP material's texture at run time. SOLVED - see further reply
I searched and found one other thread that also stalled with this unanswered - see here : https://answers.unity.com/questions/1777821/changing-hdrp-materials-texture-at-runtime-not-wor.html
I am using Unity 2020.1.4f1
I am trying to change the base map of an HDRP material (which is used on many different objects - buildings).
I have coded as follows (excerpt):
[SerializeField] private Material Building_Cladding;
public Texture Grey;
public Texture Cladding_Waves;
// in void update
// Geology
if (Input.GetKeyUp("z"))
{
Debug.Log("Switching texture for albedo on :" + Building_Cladding.name);
// Building_Cladding.SetTexture("_MainTex", Waves);
Building_Cladding.mainTexture = Cladding_Waves;
Building_Cladding.color = Color.green;
Debug.Log("Switched color to :" + Building_Cladding.color);
}
I added the material and the textures to my script in the editor GUI.
In my debug it states that my texture has changed. The output states :
"Switching texture for albedo on :OFA_Side_Cladding" "Switched color to :RGBA(0.000, 1.000, 0.000, 1.000)")
but nothing changes in the actual scene at run time.
What is the correct method to change the base map texture of a Material (which is used by many objects)? Is this a bug ?
Thanks for any help...
D.
Solution.
Contrary to what the online documentation suggests:
"_MainTex" is the main diffuse texture. This can also be accessed via mainTexture property.
and
By default, Unity considers a texture with the property name "_MainTex" to be the main texture.
the main texture map in my standard HDRP/lit shader is actually referenced by "_BaseColorMap" - AND NOT "_MainTex".
I found this out by looking into the HDRP/lit shader myself. The online documentation should be updated to reflect this change.
D.
