private void OnPreCull()
{
if (((Terrain.activeTerrain != null) && (Terrain.activeTerrain.terrainData != null)) && ((this._enabled && grass.on) && FPGrass.anyEnabled))
{
Terrain activeTerrain = Terrain.activeTerrain;
this.UpdateDisplacement(grass.displacement);
if (activeTerrain != null)
{
FPGrass.RenderArguments arguments;
Camera camera = base.camera;
this._frustum = GeometryUtility.CalculateFrustumPlanes(camera);
arguments.frustum = this._frustum;
arguments.camera = camera;
arguments.immediate = false;
arguments.terrain = activeTerrain;
arguments.center = camera.transform.position;
FPGrass.DrawAllGrass(ref arguments);
}
}
}
private void OnPreCull()
{
FPGrass.RenderArguments renderArgument = new FPGrass.RenderArguments();
if (!Terrain.activeTerrain || !Terrain.activeTerrain.terrainData)
{
return;
}
if (this._enabled && grass.on && FPGrass.anyEnabled)
{
Terrain terrain = Terrain.activeTerrain;
this.UpdateDisplacement(grass.displacement);
if (terrain)
{
Camera camera = base.camera;
this._frustum = GeometryUtility.CalculateFrustumPlanes(camera);
renderArgument.frustum = this._frustum;
renderArgument.camera = camera;
renderArgument.immediate = false;
renderArgument.terrain = terrain;
renderArgument.center = camera.transform.position;
FPGrass.DrawAllGrass(ref renderArgument);
}
}
}
internal void Render(ref FPGrass.RenderArguments renderArgs)
{
Bounds bound;
bool flag;
float single;
float single1;
float single2;
float single3;
float single4;
float single5;
if (renderArgs.terrain == null)
{
return;
}
Vector3 vector3 = renderArgs.center + this.transform.position;
if (vector3.x != this.lastRenderPosition.x || vector3.y != this.lastRenderPosition.y || vector3.z != this.lastRenderPosition.z)
{
Vector3 vector31 = vector3;
Vector3 vector32 = vector31;
Vector3 vector33 = vector31;
Vector3 vector34 = vector31;
float single6 = this.patchSize * 0.5f;
vector31.x = vector31.x - single6;
vector31.z = vector31.z + single6;
vector32.x = vector32.x - single6;
vector32.z = vector32.z - single6;
vector33.x = vector33.x + single6;
vector33.z = vector33.z + single6;
vector34.x = vector34.x + single6;
vector34.z = vector34.z - single6;
float single7 = renderArgs.terrain.SampleHeight(vector31);
float single8 = renderArgs.terrain.SampleHeight(vector32);
float single9 = renderArgs.terrain.SampleHeight(vector33);
float single10 = renderArgs.terrain.SampleHeight(vector34);
if (single7 >= single8)
{
single2 = single8;
single4 = single7;
}
else
{
single2 = single7;
single4 = single8;
}
if (single9 >= single10)
{
single3 = single10;
single5 = single9;
}
else
{
single3 = single9;
single5 = single10;
}
single = (single2 >= single3 ? single3 : single2);
single1 = (single4 <= single5 ? single5 : single4);
vector32.y = single - 5f;
vector33.y = single1 + 5f;
bound = new Bounds();
bound.SetMinMax(vector32, vector33);
flag = bound != this.lastBounds;
}
else
{
bound = this.lastBounds;
flag = false;
}
if (!this.runtimeMesh)
{
this.runtimeMesh = this.mesh;
}
if (flag)
{
this.runtimeMesh.bounds = new Bounds(bound.center - vector3, bound.size);
this.lastBounds = bound;
}
if (GeometryUtility.TestPlanesAABB(renderArgs.frustum, bound))
{
this.level.Draw(this, this.runtimeMesh, ref vector3, ref renderArgs);
}
}
