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using System;
using UnityEngine;
using XUtliPoolLib;
namespace XMainClient
{
[RequireComponent(typeof(Camera))]
public class XCustomShadow : MonoBehaviour
{
public int shadowChannel = 0;
public ShadowMapInfo shadowMapInfoRef = null;
public Camera m_shadowCamera = null;
private Transform m_shadowCameraTransformCache = null;
private Transform m_TargetTransformCache = null;
public Transform m_modifyEntityTransformCache = null;
public static float scale = 0.33f;
public float bias = 0.5f;
private Vector3 m_lastShadowPos = Vector3.zero;
private Transform m_lightTransformCache = null;
private Vector3 m_invLightForwardDir = new Vector3(0f, 0f, -1f);
private Vector3 m_lightRightDir = new Vector3(1f, 0f, 0f);
private Vector3 m_lightUpDir = new Vector3(0f, 1f, 0f);
public Matrix4x4 scaleBiasMatrix = Matrix4x4.identity;
private static Texture shadowMask = null;
public static XCustomShadow Create(Transform parent, ShadowMapInfo sg)
{
GameObject gameObject = new GameObject("ShadowProjector");
Camera camera = gameObject.AddComponent<Camera>();
XCustomShadow xcustomShadow = gameObject.AddComponent<XCustomShadow>();
xcustomShadow.m_shadowCamera = camera;
xcustomShadow.shadowMapInfoRef = sg;
xcustomShadow.m_shadowCameraTransformCache = gameObject.transform;
camera.useOcclusionCulling = false;
camera.clearFlags = (CameraClearFlags)2;
camera.backgroundColor = new Color(1f, 1f, 1f, 1f);
camera.farClipPlane = 5f;
camera.orthographicSize = 1.5f;
camera.orthographic = true;
camera.depth = -2f;
camera.cullingMask = 0;
camera.cullingMask |= 1 << XPlayer.PlayerLayer;
camera.targetTexture = sg.shadowMap;
camera.enabled = false;
xcustomShadow.enabled = false;
return xcustomShadow;
}
public void Begin(XGameObject target)
{
bool flag = this.OnTargetChange(target);
if (flag)
{
bool flag2 = this.m_shadowCamera != null;
if (flag2)
{
this.m_shadowCamera.orthographicSize = 1.5f;
this.scaleBiasMatrix = Matrix4x4.Scale(Vector3.one);
Shader shader = null;
int num = this.shadowChannel;
switch (num)
{
case 1:
shader = ShaderManager._maskR;
break;
case 2:
shader = ShaderManager._maskG;
break;
case 3:
break;
case 4:
shader = ShaderManager._maskB;
break;
default:
if (num == 8)
{
shader = ShaderManager._maskA;
}
break;
}
bool flag3 = shader != null;
if (flag3)
{
this.m_shadowCamera.SetReplacementShader(shader, "RenderType");
bool flag4 = XCustomShadow.shadowMask == null;
if (flag4)
{
XCustomShadow.shadowMask = XSingleton<XResourceLoaderMgr>.singleton.GetSharedResource<Texture>("Shader/Shadow/ShadowMask", ".png", true, false);
Shader.SetGlobalTexture("_ShadowMask", XCustomShadow.shadowMask);
}
}
}
}
bool flag5 = this.m_shadowCamera != null;
if (flag5)
{
this.m_shadowCamera.enabled = true;
}
base.enabled = true;
}
public void Clear(bool destroy)
{
bool flag = this.shadowMapInfoRef != null;
if (flag)
{
this.shadowMapInfoRef.FreeChannel(this.shadowChannel);
this.shadowMapInfoRef = null;
}
this.shadowChannel = 0;
this.m_lightTransformCache = null;
this.m_TargetTransformCache = null;
bool flag2 = this.m_shadowCamera != null;
if (flag2)
{
this.m_shadowCamera.enabled = false;
}
base.enabled = false;
if (destroy)
{
bool flag3 = this.m_shadowCamera != null;
if (flag3)
{
this.m_shadowCamera.targetTexture = null;
}
bool flag4 = XCustomShadow.shadowMask != null;
if (flag4)
{
XSingleton<XResourceLoaderMgr>.singleton.UnSafeDestroyShareResource("Shader/Shadow/ShadowMask", ".png", XCustomShadow.shadowMask, false);
XCustomShadow.shadowMask = null;
Shader.SetGlobalTexture("_ShadowMask", null);
}
this.m_shadowCameraTransformCache = null;
UnityEngine.Object.Destroy(base.gameObject);
}
}
public bool OnTargetChange(XGameObject target)
{
Transform transform = (target != null) ? target.Find("") : null;
bool flag = this.m_TargetTransformCache != transform;
bool result;
if (flag)
{
this.m_TargetTransformCache = transform;
this.m_lightTransformCache = null;
result = true;
}
else
{
result = false;
}
return result;
}
public void SetCullLayer(bool enable)
{
bool flag = this.m_shadowCamera != null;
if (flag)
{
this.m_shadowCamera.cullingMask = 0;
if (enable)
{
this.m_shadowCamera.cullingMask |= 1 << XPlayer.PlayerLayer;
}
else
{
this.m_shadowCamera.cullingMask |= int.MinValue;
}
}
}
private void Update()
{
bool flag = this.m_lightTransformCache == null;
if (flag)
{
Light mainLight = XQualitySetting.mainLight;
bool flag2 = mainLight != null;
if (flag2)
{
this.m_lightTransformCache = mainLight.transform;
bool flag3 = this.m_lightTransformCache != null;
if (flag3)
{
this.m_invLightForwardDir = -this.m_lightTransformCache.forward;
this.m_lightRightDir = this.m_lightTransformCache.right;
this.m_lightUpDir = this.m_lightTransformCache.up;
}
}
}
bool flag4 = this.m_shadowCameraTransformCache != null && this.m_lightTransformCache != null && this.m_TargetTransformCache != null;
if (flag4)
{
Vector3 position = this.m_shadowCameraTransformCache.position;
float num = this.m_lastShadowPos.x * position.x + this.m_lastShadowPos.y * position.y + this.m_lastShadowPos.z * position.z;
float num2 = Quaternion.Angle(this.m_shadowCameraTransformCache.rotation, this.m_lightTransformCache.rotation);
bool flag5 = num2 >= 5f || num > 0.5f;
if (flag5)
{
this.m_shadowCameraTransformCache.rotation = this.m_lightTransformCache.rotation;
this.m_shadowCameraTransformCache.position = this.m_TargetTransformCache.position + this.m_invLightForwardDir * 2f + this.m_lightRightDir * 0.4f + this.m_lightUpDir * 0.2f;
this.m_lastShadowPos = this.m_shadowCameraTransformCache.position;
this.scaleBiasMatrix[0, 0] = XCustomShadow.scale;
this.scaleBiasMatrix[1, 1] = XCustomShadow.scale;
this.scaleBiasMatrix[2, 2] = XCustomShadow.scale;
this.scaleBiasMatrix[0, 3] = this.bias;
this.scaleBiasMatrix[1, 3] = this.bias;
this.scaleBiasMatrix[2, 3] = this.bias;
Matrix4x4 matrix4x = this.scaleBiasMatrix * this.m_shadowCamera.worldToCameraMatrix;
Shader.SetGlobalMatrix("custom_World2Shadow", matrix4x);
}
bool flag6 = this.m_modifyEntityTransformCache != this.m_TargetTransformCache && this.m_modifyEntityTransformCache != null;
if (flag6)
{
this.m_TargetTransformCache = this.m_modifyEntityTransformCache;
}
}
}
}
}
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