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optimisations from gemini (not tested)

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DeMuenu
2026-03-24 15:45:31 +01:00
parent 9f986c3eb1
commit a1e808ad92
12 changed files with 231 additions and 117 deletions
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78
Scripts/ShadowcasterUpdater.cs
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@@ -1,4 +1,4 @@


using System.Security.Permissions;
using UdonSharp;
using UnityEngine;
@@ -18,10 +18,30 @@ public class ShadowcasterUpdater : UdonSharpBehaviour
private MaterialPropertyBlock _mpb;
private int _propShadowTex;
private int _propShadowColor;
private int _propOutsideColor;
private int _propMinBrightness;
private int _propPlaneOrigin;
private int _propPlaneUinv;
private int _propPlaneVinv;
private int _propPlaneNormal;
void Start()
{
_mpb = new MaterialPropertyBlock();
string suf = "_" + shadowcasterIndex.ToString();
_propShadowTex = VRCShader.PropertyToID("_Udon_shadowCasterTex" + suf);
_propShadowColor = VRCShader.PropertyToID("_Udon_shadowCasterColor" + suf);
_propOutsideColor = VRCShader.PropertyToID("_Udon_OutSideColor" + suf);
_propMinBrightness = VRCShader.PropertyToID("_Udon_MinBrightnessShadow" + suf);
_propPlaneOrigin = VRCShader.PropertyToID("_Udon_Plane_Origin" + suf);
_propPlaneUinv = VRCShader.PropertyToID("_Udon_Plane_Uinv" + suf);
_propPlaneVinv = VRCShader.PropertyToID("_Udon_Plane_Vinv" + suf);
_propPlaneNormal = VRCShader.PropertyToID("_Udon_Plane_Normal" + suf);
ApplyTextureData();
}
@@ -31,43 +51,47 @@ public class ShadowcasterUpdater : UdonSharpBehaviour
{
if (mat == null) continue;
mat.GetPropertyBlock(_mpb);
_mpb.SetTexture("_Udon_shadowCasterTex" + "_" + shadowcasterIndex.ToString(), ShadowcasterTexture);
_mpb.SetColor("_Udon_shadowCasterColor" + "_" + shadowcasterIndex.ToString(), TextureColor);
_mpb.SetColor("_Udon_OutSideColor" + "_" + shadowcasterIndex.ToString(), OutsideColor);
_mpb.SetFloat("_Udon_MinBrightnessShadow" + "_" + shadowcasterIndex.ToString(), MinBrightness);
if (ShadowcasterTexture != null) _mpb.SetTexture(_propShadowTex, ShadowcasterTexture);
_mpb.SetColor(_propShadowColor, TextureColor);
_mpb.SetColor(_propOutsideColor, OutsideColor);
_mpb.SetFloat(_propMinBrightness, MinBrightness);
mat.SetPropertyBlock(_mpb);
}
}
void LateUpdate()
{
float quadHalfWidth = 0.5f;
float quadHalfHeight = 0.5f;
// World-space basis directions from transform
Vector3 Udir = transform.rotation * Vector3.right; // plane local +X
Vector3 Vdir = transform.rotation * Vector3.up; // plane local +Y
// World-space half extents after non-uniform scaling
float halfW = quadHalfWidth * transform.lossyScale.x;
float halfH = quadHalfHeight * transform.lossyScale.y;
// Reciprocal axes so dot(r, Uinv/Vinv) -> [-0.5, 0.5]
Vector3 Uinv = Udir / (2.0f * Mathf.Max(halfW, 1e-6f));
Vector3 Vinv = Vdir / (2.0f * Mathf.Max(halfH, 1e-6f));
// Unit normal
Vector3 N = Vector3.Normalize(Vector3.Cross(Udir, Vdir));
Vector4 originVec = new Vector4(transform.position.x, transform.position.y, transform.position.z, 0);
Vector4 uinvVec = new Vector4(Uinv.x, Uinv.y, Uinv.z, 0);
Vector4 vinvVec = new Vector4(Vinv.x, Vinv.y, Vinv.z, 0);
Vector4 nVec = new Vector4(N.x, N.y, N.z, 0);
foreach (Renderer mat in rendererTargets)
{
if (mat == null) continue;
mat.GetPropertyBlock(_mpb);
float quadHalfWidth = 0.5f;
float quadHalfHeight = 0.5f;
// World-space basis directions from transform
Vector3 Udir = transform.rotation * Vector3.right; // plane local +X
Vector3 Vdir = transform.rotation * Vector3.up; // plane local +Y
// World-space half extents after non-uniform scaling
float halfW = quadHalfWidth * transform.lossyScale.x;
float halfH = quadHalfHeight * transform.lossyScale.y;
// Reciprocal axes so dot(r, Uinv/Vinv) -> [-0.5, 0.5]
Vector3 Uinv = Udir / (2.0f * Mathf.Max(halfW, 1e-6f));
Vector3 Vinv = Vdir / (2.0f * Mathf.Max(halfH, 1e-6f));
// Unit normal
Vector3 N = Vector3.Normalize(Vector3.Cross(Udir, Vdir));
_mpb.SetVector("_Udon_Plane_Origin_" + shadowcasterIndex.ToString(), new Vector4(transform.position.x, transform.position.y, transform.position.z, 0));
_mpb.SetVector("_Udon_Plane_Uinv_" + shadowcasterIndex.ToString(), new Vector4(Uinv.x, Uinv.y, Uinv.z, 0));
_mpb.SetVector("_Udon_Plane_Vinv_" + shadowcasterIndex.ToString(), new Vector4(Vinv.x, Vinv.y, Vinv.z, 0));
_mpb.SetVector("_Udon_Plane_Normal_" + shadowcasterIndex.ToString(), new Vector4(N.x, N.y, N.z, 0));
_mpb.SetVector(_propPlaneOrigin, originVec);
_mpb.SetVector(_propPlaneUinv, uinvVec);
_mpb.SetVector(_propPlaneVinv, vinvVec);
_mpb.SetVector(_propPlaneNormal, nVec);
mat.SetPropertyBlock(_mpb);
}