public void RebuildLightsList(List <VisibleLight> visibleLights, CameraData cameraData, PipelineSettings pipelineSettings, ref RenderingData renderingData)
{
UnityEngine.Profiling.Profiler.BeginSample("RebuildLightsList");
lights.Clear();
var unityLights = visibleLights;
VisibleLight = 0;
LightsDataForShadow.Clear();
bool softShadow = false;
int j = 0;
int currentShadowIndex = 0;
int maxShadowNum = pipelineSettings.MaxShadowLightsNum;
for (int i = 0; i < unityLights.Count; ++i)
{
var ul = unityLights[i];
var pl = ul.light.GetComponent <ProjectorLight>();
if (pl == null)
{
continue;
}
lights.Add(pl);
var ifLight = pl;
if (ifLight.spritesAtlas != spritesAtlas)
{
spritesAtlas = ifLight.spritesAtlas;
}
//矩阵是从右向左乘的,view需要z取反
Matrix4x4 c2w = /*Camera.main*/ cameraData.camera.cameraToWorldMatrix * Matrix4x4.Scale(new Vector3(1, 1, -1));// Camera.main.transform.localToWorldMatrix;
int shadowIndex = currentShadowIndex;
if (currentShadowIndex >= maxShadowNum || !ifLight.lightParms_Shadow)
{
shadowIndex = -1;
}
LightDataInAll lightDataInAll = ifLight.GetLightData(c2w, shadowIndex);
NativeLightsBoundList[i] = lightDataInAll.sFiniteLightBound;
NativeLightsDataList[i] = lightDataInAll.lightData;
++VisibleLight;
//for shadow
// TODO frustum cull
if (ifLight.lightParms_Shadow && currentShadowIndex < maxShadowNum)
{
LightDataForShadow lightDataForShadow = new LightDataForShadow();
lightDataForShadow.lightIndex = j++;
lightDataForShadow.shadowData = lightDataInAll.shadowData;
lightDataForShadow.visibleLight = ul;
lightDataForShadow.projectorLight = ifLight;
lightDataForShadow.unityLightIndex = i;
//Matrix4x4 scaleMatrix = Matrix4x4.identity;
////scaleMatrix.m22 = -1.0f;
//Matrix4x4 view = scaleMatrix * ul.localToWorld.inverse;
//lightDataForShadow.shadowData.viewMatrix = view;
LightsDataForShadow.Add(lightDataForShadow);
softShadow |= ifLight.softShadow;
++currentShadowIndex;
}
}
renderingData.shadowData.supportsSoftShadows = softShadow;
culsterDataGenerator.Begin(pipelineSettings);
culsterDataGenerator.Run(cameraData, pipelineSettings, this);
lightLoopLightsData.LightsDatasBuf.SetData(LightsDataList);
tileAndClusterData.itemsIDListBuf.SetData(culsterDataGenerator.ResultItemsIDList);
tileAndClusterData.clusterNumItemsBuf.SetData(culsterDataGenerator.ResultClusterNumItems);
culsterDataGenerator.End();
UnityEngine.Profiling.Profiler.EndSample();
}
public LightDataInAll GetLightData(Matrix4x4 c2w, int currentShadowIndex)
{
LightDataInAll lightDataInAll = new LightDataInAll();
var ps = iFPipelineProjector.GetProjectorSettings;
{
//bound.planes = Projector.GetCullingPlanes(ps.frustumMatrix, c2w);//world to view
Projector.GetCullingPlanesAndSphere(
out lightDataInAll.sFiniteLightBound.planes,
out lightDataInAll.sFiniteLightBound.aabb,
ps.frustumMatrix, c2w);
}
LightData lightData = new LightData();
lightData.pos = cacheTransform.position;
//lightData.lightParms = (uint)LightParams;
lightData.posShadow = new Vector4();
lightData.falloffR = ps.falloffR;
lightData.projS = ps.projectMatrixX;
lightData.projT = ps.projectMatrixY;
lightData.projQ = ps.projectMatrixW;
lightData.colorPacked = ColorTools.packRGBE(ColorTools.Color2Vec3(FinalColor));
var unpack = ColorTools.unpackRGBE(2256963201);
//Debug.Log(unpack.ToString());
//Debug.Log(FinalColor.ToString());
lightData.specMultiplier = specMultiplier;
lightData.shadowBleedReduce = shadowBleedReduce;
int sizex = spritesAtlas.width;
int sizey = spritesAtlas.height;
{
SpriteData spriteData = projSpriteData;
float x = spriteData.x;
float y = sizey - spriteData.y - spriteData.height;//GPU得纹理坐标y轴反的,原点左上角
float width = spriteData.width;
float height = spriteData.height;
float scalex = width / sizex;//todo:optimize
float scaley = height / sizey;
float offsetx = x / sizex;
float offsety = y / sizey;
ColorTools.packR15G15B15A15(
out lightData.scaleBias.x,
out lightData.scaleBias.y,
new Vector4(scalex, scaley, offsetx, offsety));
}
{
SpriteData spriteData = falloffSpriteData;
float x = spriteData.x;
float y = sizey - spriteData.y - spriteData.height;//GPU得纹理坐标y轴反的,原点左上角
float width = spriteData.width;
float height = spriteData.height;
float scalex = width / sizex;//todo:optimize
float scaley = height / sizey;
float offsetx = x / sizex;
float offsety = y / sizey;
ColorTools.packR15G15B15A15(
out lightData.scaleBias.z,
out lightData.scaleBias.w,
new Vector4(scalex, scaley, offsetx, offsety));
}
//public Vector4 boxMin;
//public Vector4 boxMax;
//public Vector4 areaPlane;
{
Plane plane = lightDataInAll.sFiniteLightBound.planes.Near;
Vector3 normalws = plane.normal.normalized;
plane.distance = Vector3.Dot(lightData.pos, normalws);
plane.normal = normalws * area_falloff;
lightData.areaPlane = new Vector4(
plane.normal.x,
plane.normal.y,
plane.normal.z,
plane.distance);
//问题:已知plane，求面上偏移width,height的点
Vector3 topright = new Vector3(area_width, area_height, 0);
Vector3 bottomleft = new Vector3(-area_width, -area_height, 0);
Matrix4x4 local2world = cacheTransform.localToWorldMatrix;
topright = local2world.MultiplyPoint3x4(topright);
bottomleft = local2world.MultiplyPoint3x4(bottomleft);
#if UNITY_EDITOR
posa = bottomleft;
posc = topright;
posb = new Vector3(-area_width, area_height, 0);
posb = local2world.MultiplyPoint3x4(posb);
posd = new Vector3(area_width, -area_height, 0);
posd = local2world.MultiplyPoint3x4(posd);
#endif
Vector3 boxMin = new Vector3(
Mathf.Min(bottomleft.x, topright.x),
Mathf.Min(bottomleft.y, topright.y),
Mathf.Min(bottomleft.z, topright.z)
);
Vector3 boxMax = new Vector3(
Mathf.Max(bottomleft.x, topright.x),
Mathf.Max(bottomleft.y, topright.y),
Mathf.Max(bottomleft.z, topright.z)
);
lightData.boxMin = boxMin;
lightData.boxMax = boxMax;
}
#if UNITY_EDITOR
cacheLightData = lightDataInAll;
#endif
// shadow
{
LightData_Shadow shadowData = new LightData_Shadow();
if (lightParms_Shadow && currentShadowIndex != -1)
{
needDrawShadow = true;
lightParams_ShadowIndex = currentShadowIndex;
shadowData.projMatrix = iFPipelineProjector.GetProjectorSettings.projMatrix;
shadowData.viewMatrix = iFPipelineProjector.GetProjectorSettings.viewMatrix;
#if UNITY_EDITOR
shadowData.planes = cacheLightData.sFiniteLightBound.planes;
#endif
}
else
{
needDrawShadow = false;
}
lightDataInAll.shadowData = shadowData;
}
lightData.lightParms = (uint)LightParams;
lightDataInAll.lightData = lightData;
return(lightDataInAll);
}