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Add support for multiple shadowcaster planes

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Extended ShadowcasterUpdater and shaders to handle multiple shadowcaster planes by introducing indexed properties and logic for two shadowcaster sets. Updated property names and shader logic to support per-index shadowcaster textures, colors, and brightness, enabling more flexible shadow casting in scenes.
This commit is contained in:
DeMuenu
2025-09-30 12:59:56 +02:00
parent 7a3065211e
commit fd5eb748e2
4 changed files with 74 additions and 25 deletions
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25
Scripts/ShadowcasterUpdater.cs
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@@ -9,15 +9,36 @@ public class ShadowcasterUpdater : UdonSharpBehaviour
{
public Renderer[] rendererTargets;
public Texture2D ShadowcasterTexture;
public Color OutsideColor = Color.white;
public Color TextureColor = Color.white;
public float MinBrightness = 0.0f;
public int shadowcasterIndex = 1;
public string propertyName = "_Udon_WorldToLocal";
private MaterialPropertyBlock _mpb;
void Start()
{
_mpb = new MaterialPropertyBlock();
ApplyTextureData();
}
public void ApplyTextureData()
{
foreach (Renderer mat in rendererTargets)
{
if (mat == null) continue;
mat.GetPropertyBlock(_mpb);
_mpb.SetTexture("_Udon_ShadowcasterTex" + "_" + (string)shadowcasterIndex, ShadowcasterTexture);
_mpb.SetColor("_Udon_shadowCasterColor" + "_" + (string)shadowcasterIndex, TextureColor);
_mpb.SetColor("_Udon_OutSideColor" + "_" + (string)shadowcasterIndex, OutsideColor);
_mpb.SetFloat("_Udon_MinBrightnessShadow" + "_" + (string)shadowcasterIndex, MinBrightness);
mat.SetPropertyBlock(_mpb);
}
}
void LateUpdate()
{
var w2l = transform.worldToLocalMatrix;
@@ -27,7 +48,7 @@ public class ShadowcasterUpdater : UdonSharpBehaviour
{
if (mat == null) continue;
mat.GetPropertyBlock(_mpb);
_mpb.SetMatrix(propertyName, w2l);
_mpb.SetMatrix(propertyName + "_" + (string)shadowcasterIndex, w2l);
mat.SetPropertyBlock(_mpb);
}