void Start()
{
instance = this;
thisCamera = GetComponent <TreeCamera>();
initialNode = thisCamera.activeNode;
TMP_InputField inputField = Instantiate(inputTextPrefab, initialNode.transform.position, initialNode.transform.rotation, initialNode.transform).GetComponent <TMP_InputField>();
inputField.onEndEdit.AddListener((newText) =>
{
rootText = newText;
string[] childStrings = TreeGenerator.instance.GetChildWordsFromString(rootText);
string[] remainingLetters = TreeGenerator.instance.GetRemainingLetters(rootText, childStrings);
initialNode.RemoveChildren();
initialNode.SetChildStrings(childStrings, remainingLetters);
});
}
public void UpdateCamera(Camera camera)
{
if (ActiveCamera == null || ActiveCamera == camera)
{
CameraLocation = camera.Position;
CameraDirection = camera.Direction;
TreeCamera treeCamera = new TreeCamera();
treeCamera.position = SpeedTreeUtil.ToSpeedTree(camera.DerivedPosition);
treeCamera.direction = SpeedTreeUtil.ToSpeedTree(-camera.Direction);
SpeedTreeWrapper.Camera = treeCamera;
Instance.PerFrameProcessing(camera);
// Handle any LOD processing
Instance.ProcessLODChanges(camera);
}
}
public TreeGroup(String filename, float size, float sizeVariance, SpeedWindWrapper speedWind, Forest forest, List<Vector3> locations)
{
if (!initialized)
{
Initialize();
}
name = String.Format("Forest: {0} File: {1} Instances: {2}", forest.Name, filename, locations.Count);
this.forest = forest;
this.speedWind = speedWind;
speedTree = new SpeedTreeWrapper();
speedTree.TextureFlip = true;
LoadTree(filename);
speedTree.BranchWindMethod = WindMethod.WindGPU;
speedTree.FrondWindMethod = WindMethod.WindGPU;
speedTree.LeafWindMethod = WindMethod.WindGPU;
float originalSize = 0f;
float variance = 0f;
speedTree.GetTreeSize(ref originalSize, ref variance);
speedTree.OriginalSize = originalSize;
speedTree.SetTreeSize(size, sizeVariance);
treeTextures = speedTree.Textures;
// make sure the tree doesn't have too many leaf texture groups
Debug.Assert(treeTextures.LeafTextureFilenames.Length <= 3);
// for trees with 3 leaf textures, reduce the number of rocking groups to 2
// (from the default of 3), so that we don't overflow the number of available shader
// param registers
if (treeTextures.LeafTextureFilenames.Length == 3)
{
speedTree.NumLeafRockingGroups = 2;
}
speedTree.Compute(SpeedTreeUtil.ToSpeedTree(Matrix4.Identity), 1, true);
speedTree.TreePosition = SpeedTreeUtil.ToSpeedTree(Vector3.Zero);
// set lod limits
speedTree.SetLodLimits(nearLOD, farLOD);
// create the geometry object
geometry = new TreeGeometry();
//
// Setup branches
//
// create the render operation
branchRenderOp = new RenderOperation();
branchRenderOp.operationType = OperationType.TriangleStrip;
branchRenderOp.useIndices = true;
// set up the material.
branchMaterial = SetupTreeMaterial("SpeedTree/Branch", treeTextures.BranchTextureFilename, treeTextures.SelfShadowFilename, GenerateNormalMapTextureName(treeTextures.BranchTextureFilename), speedTree.BranchMaterial, !normalMapped, branchTechnique);
// get number of branch LODs
uint nBranchLODs = speedTree.NumBranchLodLevels;
// allocate branch buffers
branchVertexBuffers = new VertexData[nBranchLODs];
branchIndexBuffers = new IndexData[nBranchLODs];
for (short i = 0; i < nBranchLODs; i++)
{
// set up the vertex and index buffers for the branch geometry
speedTree.GetGeometry(geometry, SpeedTreeWrapper.GeometryFlags.BranchGeometry, i, -1, -1);
BuildIndexedBuffer(geometry.Branches, true, out branchVertexBuffers[i], out branchIndexBuffers[i]);
}
//
// Setup fronds
//
// create the render operation
frondRenderOp = new RenderOperation();
frondRenderOp.operationType = OperationType.TriangleStrip;
frondRenderOp.useIndices = true;
// set up the material
frondMaterial = SetupTreeMaterial("SpeedTree/Frond", treeTextures.CompositeFilename, treeTextures.SelfShadowFilename, null, speedTree.FrondMaterial, true, 0);
uint nFrondLODs = speedTree.NumFrondLodLevels;
// allocate frond buffer arrays
frondVertexBuffers = new VertexData[nFrondLODs];
frondIndexBuffers = new IndexData[nFrondLODs];
for ( short i = 0; i < nFrondLODs; i++ )
{
// build the frond geometry for each LOD
speedTree.GetGeometry(geometry, SpeedTreeWrapper.GeometryFlags.FrondGeometry, -1, i, -1);
BuildIndexedBuffer(geometry.Fronds, false, out frondVertexBuffers[i], out frondIndexBuffers[i]);
}
//
// Setup Leaves
//
TreeCamera saveCam = SpeedTreeWrapper.Camera;
TreeCamera treeCamera = new TreeCamera();
treeCamera.position = SpeedTreeUtil.ToSpeedTree(Vector3.Zero);
treeCamera.direction = SpeedTreeUtil.ToSpeedTree(new Vector3(1,0,0));
SpeedTreeWrapper.Camera = treeCamera;
// set up render ops
leaf0RenderOp = new RenderOperation();
leaf0RenderOp.operationType = OperationType.TriangleList;
leaf0RenderOp.useIndices = true;
leaf1RenderOp = new RenderOperation();
leaf1RenderOp.operationType = OperationType.TriangleList;
leaf1RenderOp.useIndices = true;
// set up the material
leafMaterial = SetupTreeMaterial("SpeedTree/Leaf", treeTextures.CompositeFilename, null, null, speedTree.LeafMaterial, true, 0);
uint nLeafLODs = speedTree.NumLeafLodLevels;
// allocate leaf buffer arrays
leafVertexBuffers = new VertexData[nLeafLODs];
leafIndexBuffers = new IndexData[nLeafLODs];
float [] lodLeafAdjust = speedTree.LeafLodSizeAdjustments;
for ( short i = 0; i < nLeafLODs; i++ )
{
// build the leaf geometry for each LOD
speedTree.GetGeometry(geometry, SpeedTreeWrapper.GeometryFlags.LeafGeometry, -1, -1, i);
BuildLeafBuffer(geometry.Leaves0, lodLeafAdjust[i], out leafVertexBuffers[i], out leafIndexBuffers[i]);
}
// restore the camera afte getting leaf buffers
SpeedTreeWrapper.Camera = saveCam;
bounds = new AxisAlignedBox();
// build all the trees and accumulate bounds
foreach (Vector3 loc in locations)
{
SpeedTreeWrapper treeInstance = speedTree.MakeInstance();
treeInstance.OriginalSize = originalSize;
Tree t = new Tree(this, treeInstance, loc);
bounds.Merge(t.Bounds);
trees.Add(t);
}
boundingRadius = (bounds.Maximum - bounds.Minimum).Length / 2;
// create the buckets
branchBuckets = new Dictionary<int, List<Tree>>[nBranchLODs];
frondBuckets = new Dictionary<int, List<Tree>>[nFrondLODs];
leafBuckets = new Dictionary<int, List<Tree>>[nLeafLODs];
billboardBucket = new Dictionary<int, List<Tree>>[1];
// initialize the bucket dictionaries
for (int i = 0; i < nBranchLODs; i++)
{
branchBuckets[i] = new Dictionary<int, List<Tree>>();
}
for (int i = 0; i < nFrondLODs; i++)
{
frondBuckets[i] = new Dictionary<int, List<Tree>>();
}
for (int i = 0; i < nLeafLODs; i++)
{
leafBuckets[i] = new Dictionary<int, List<Tree>>();
}
billboardBucket[0] = new Dictionary<int, List<Tree>>();
allGroups.Add(this);
}
public void UpdateMaterials()
{
int numMat = speedWind.NumWindMatrices;
Debug.Assert(numMat == 4);
Pass branchPass = branchMaterial.GetTechnique(branchTechnique).GetPass(0);
Pass frondPass = frondMaterial.GetTechnique(0).GetPass(0);
Pass leafPass = leafMaterial.GetTechnique(0).GetPass(0);
// set wind matrices in branch, frond and leaf passes
for ( uint i = 0; i < numMat; i++ )
{
Matrix4 mat = SpeedTreeUtil.FromSpeedTree(speedWind.get_WindMatrix(i));
branchPass.VertexProgramParameters.SetNamedConstant(windMatrixConstantNames[i], mat );
branchPass.ShadowCasterVertexProgramParameters.SetNamedConstant(windMatrixConstantNames[i], mat);
frondPass.VertexProgramParameters.SetNamedConstant(windMatrixConstantNames[i], mat );
frondPass.ShadowCasterVertexProgramParameters.SetNamedConstant(windMatrixConstantNames[i], mat);
leafPass.VertexProgramParameters.SetNamedConstant(windMatrixConstantNames[i], mat );
leafPass.ShadowCasterVertexProgramParameters.SetNamedConstant(windMatrixConstantNames[i], mat);
}
// set camera direction
if (!normalMapped)
{
branchPass.VertexProgramParameters.SetNamedConstant("g_vCameraDir", TerrainManager.Instance.CameraDirection);
}
frondPass.VertexProgramParameters.SetNamedConstant("g_vCameraDir", TerrainManager.Instance.CameraDirection);
leafPass.VertexProgramParameters.SetNamedConstant("g_vCameraDir", TerrainManager.Instance.CameraDirection);
// leaf matrices
speedWind.BuildLeafAngleMatrices(SpeedTreeUtil.ToSpeedTree(TerrainManager.Instance.CameraDirection));
numMat = speedWind.NumLeafAngles;
Debug.Assert(numMat == 4);
for ( uint i = 0; i < numMat; i++ )
{
Matrix4 mat = SpeedTreeUtil.FromSpeedTree(speedWind.get_LeafAngleMatrix(i));
leafPass.VertexProgramParameters.SetNamedConstant(leafAngleMatrixConstantNames[i], mat );
leafPass.ShadowCasterVertexProgramParameters.SetNamedConstant(leafAngleMatrixConstantNames[i], mat);
}
// get leaf billboard table
// since we are doing GPU wind and leaf billboarding, set the camera direction to the positive X axis
TreeCamera treeCamera = new TreeCamera();
treeCamera.position = SpeedTreeUtil.ToSpeedTree(TerrainManager.Instance.CameraLocation);
treeCamera.direction = SpeedTreeUtil.ToSpeedTree(new Vector3(1, 0, 0));
SpeedTreeWrapper.Camera = treeCamera;
speedTree.GetGeometry(geometry, SpeedTreeWrapper.GeometryFlags.LeafGeometry, -1, -1, 0);
V4[] leafBillboards = speedTree.LeafBillboardTable;
// set leaf billboard constants
for ( uint i = 0; i < leafBillboards.Length; i++ )
{
leafPass.VertexProgramParameters.SetNamedConstant(leafClusterConstantNames[i], SpeedTreeUtil.FromSpeedTree(leafBillboards[i]) );
leafPass.ShadowCasterVertexProgramParameters.SetNamedConstant(leafClusterConstantNames[i], SpeedTreeUtil.FromSpeedTree(leafBillboards[i]));
}
for (uint i = (uint)leafBillboards.Length; i < 48; i++)
{
leafPass.VertexProgramParameters.SetNamedConstant(leafClusterConstantNames[i], new Vector4(0,0,0,0));
leafPass.ShadowCasterVertexProgramParameters.SetNamedConstant(leafClusterConstantNames[i], new Vector4(0, 0, 0, 0));
}
// set camera direction back
treeCamera.position = SpeedTreeUtil.ToSpeedTree(TerrainManager.Instance.CameraLocation);
treeCamera.direction = SpeedTreeUtil.ToSpeedTree(-TerrainManager.Instance.CameraDirection);
SpeedTreeWrapper.Camera = treeCamera;
}
