public MainWindow()
{
InitializeComponent();
DateTime start = DateTime.Now;
Scene.Scene scene = Scene.ReferenceScene;
BitmapSource rt = RayTrace.Render(scene, 1000, 1000);
image1.Source = rt;
DateTime end = DateTime.Now;
TimeSpan duration = end - start;
textBox1.Text = rt.Width.ToString() + "x" + rt.Height.ToString() + " image took " + (duration.TotalMilliseconds / 1000.0).ToString("F2") + "s";
}
public override void CursorUpdate(World world, Player player, Vector2 cursorPosition)
{
WorldCamera camera = world.worldCamera;
if (!camera.turning)
{
RayTrace rayTrace = camera.GetRayAtScreenPosition(cursorPosition - camera.worldContainer.GetPosition());
if (rayTrace.hit)
{
bool inRange = (rayTrace.hitPosition - player.worldPosition).sqrMagnitude < 25f;
if (Input.GetKey(KeyCode.Mouse0) && inRange)
{
player.UseItem(Vector3Int.FloorToInt(rayTrace.hitTilePosition + rayTrace.hitDirection), Input.GetKeyDown(KeyCode.Mouse0));
}
SetConstructionGuide(camera, player, rayTrace.hitTilePosition + Vector3.one * 0.5f, rayTrace.hitDirection, inRange);
_previewSprite.isVisible = true;
}
}
}
public override void CursorUpdate(World world, Player player, Vector2 cursorPosition)
{
WorldCamera camera = world.worldCamera;
if (!camera.turning)
{
RayTrace rayTrace = camera.GetRayAtScreenPosition(cursorPosition - camera.worldContainer.GetPosition());
Tile tile = rayTrace.GetTileIn(world);
if (tile != _lastTile)
{
_progress = 0f;
_lastTile = tile;
}
if (rayTrace.hit)
{
bool inRange = (rayTrace.hitPosition - player.worldPosition).sqrMagnitude < 25f;
if (Input.GetKey(KeyCode.Mouse0) && inRange)
{
bool clicked = _progress >= 1f;
if (clicked)
{
_progress = 0f;
}
player.UseItem(rayTrace.hitTilePosition, clicked); // Input.GetKeyDown(KeyCode.Mouse0));
}
SetConstructionGuide(camera, player, rayTrace.hitTilePosition, inRange, _progress);
_previewSprite.isVisible = true;
}
}
}
public VoxelBlock Raycast(Ray ray, out VoxelBlock emptyTargetedBlock)
{
VoxelBlock last = null;
VoxelBlock ret = null;
var traverser = new GridTraverser();
float?closest = null;
foreach (VoxelTerrainChunk terr in TW.Data.Objects.Where(o => o is VoxelTerrainChunk))
{
var trace = new RayTrace();
trace.Ray = ray;
float?dist = trace.Ray.xna().Intersects(terr.GetBoundingBox().xna());
if (!dist.HasValue)
{
continue;
}
if (closest.HasValue && closest.Value < dist.Value)
{
continue;
}
trace.Start = dist.Value + 0.001f;
traverser.NodeSize = terr.NodeSize;
traverser.GridOffset = terr.WorldPosition;
//TODO: fix multiple terrains
var hit = false;
VoxelTerrainChunk terr1 = terr;
traverser.Traverse(trace, delegate(Point3 arg)
{
if (!terr1.InGrid(arg))
{
return(true);
}
var voxelBlock = terr1.GetVoxelInternal(ref arg);
if (voxelBlock == null)
{
return(false);
}
if (voxelBlock.Filled)
{
hit = true;
ret = getChunkVoxelWrapper(terr1, arg);
return(true);
}
last = getChunkVoxelWrapper(terr1, arg);
return(false);
});
if (hit)
{
closest = dist;
}
}
emptyTargetedBlock = last;
return(ret);
}
public override void CursorUpdate(World world, Player player, Vector2 cursorPosition)
{
WorldCamera camera = world.worldCamera;
List <ITarget> targets = world.targets;
ITarget nearestTarget = null;
Vector2 screenPositionA, screenPositionB;
screenPositionA = new Vector2(1920f, 1080f);
for (int index = 0; index < targets.Count; index++)
{
screenPositionB = camera.GetScreenPosition(targets[index].worldPosition) + camera.worldContainer.GetPosition();
float sqrMagnitude = (screenPositionB - cursorPosition).sqrMagnitude;
//if ((screenPositionB.x > Menu.screenWidth * 0.5f || screenPositionB.x < Menu.screenWidth * -0.5f) ||
// (screenPositionB.y > Menu.screenHeight * 0.5f || screenPositionB.y < Menu.screenHeight * -0.5f))
if (sqrMagnitude > 4096f)
{
continue;
}
else if ((screenPositionA - cursorPosition).sqrMagnitude > sqrMagnitude)
{
nearestTarget = targets[index];
screenPositionA = screenPositionB;
}
}
if (_currentTarget != nearestTarget)
{
_lastScreenPosition = position;
_lastSize = size;
_currentTarget = nearestTarget;
_lastTime = menu.time;
_targetInspector.InspectTarget(_currentTarget);
}
if (_currentTarget != null)
{
_targetScreenPosition = screenPositionA + nearestTarget.boundRect.position;
_targetSize = nearestTarget.boundRect.size;
if (Input.GetKey(KeyCode.Mouse0))
{
player.UseItem(_currentTarget.worldPosition, Input.GetKeyDown(KeyCode.Mouse0));
}
}
else
{
_targetScreenPosition = cursorPosition;
_targetSize = new Vector2(12f, 12f);
if (Input.GetKey(KeyCode.Mouse0))
{
RayTrace rayTrace = camera.GetRayAtScreenPosition(cursorPosition - camera.worldContainer.GetPosition());
Vector3 targetPosition = new Vector3(rayTrace.hitPosition.x, player.worldPosition.y, rayTrace.hitPosition.z);
if (rayTrace.hit)
{
player.UseItem(targetPosition, Input.GetKeyDown(KeyCode.Mouse0));
}
}
}
}
Color TraceColor(Vector3 startPos, Vector3 rayDir, int sample, int depth)
{
if (depth <= 0)
{
return(Color.black);
}
RayTrace.Ray ray = new RayTrace.Ray(startPos, rayDir, 1000);
RayTrace.Intersect(ref ray);
if (ray.geomID == RayTrace.Invalid)
{
return(skyColor);
}
else
{
SimpleModel model = scene.models[(int)ray.geomID];
SimpleMesh mesh = model.mesh;
int t0 = mesh.triangles[ray.primID * 3 + 0];
int t1 = mesh.triangles[ray.primID * 3 + 1];
int t2 = mesh.triangles[ray.primID * 3 + 2];
Vector2 uv = RayTraceTool.Lerp(mesh.uv[t0], mesh.uv[t1], mesh.uv[t2], ray.u, ray.v);
Color texColor = model.material.LinearSample(uv);
if (!ignoreMaterialColor)
{
texColor *= model.material.GetColor();
}
if (model.material.GetRenderMode() == SimpleMaterial.RenderMode.Opaque)
{
texColor.a = 1;
}
Vector3 hitPos = ray.pos + ray.dir * ray.length;
Vector3 hitNormal = RayTraceTool.Lerp(mesh.normals[t0], mesh.normals[t1], mesh.normals[t2], ray.u, ray.v);
hitNormal = (model.rst.rot * hitNormal);
float transFactor = 1 - texColor.a;
float glossiness = model.material.glossiness;
float reflectFactor = Mathf.Lerp(0.2f * glossiness, 1f, model.material.metallic);
if (reflectFactor > 0.01f)
{
reflectFactor = Fresnel_Schlick(Vector3.Dot(-rayDir, hitNormal), reflectFactor);
}
float grayscale = texColor.grayscale;
float diffuseFactor = Mathf.Clamp01(1 - transFactor - reflectFactor);
int transSample = (int)(sample * grayscale * transFactor);
int reflectSample = (int)(sample * reflectFactor);
int diffuseSample = (int)(sample * grayscale * diffuseFactor);
Color finaleColor = Color.black;
Color reflectColor = Color.black;
{
Color finalLightColor = Color.black;// GetAllLightsColor(model, hitPos, hitNormal) * (reflectFactor + scene.lights.Length);//光源直接贡献
if (reflectSample > 0)
{
Vector3 reflectDir = Vector3.Reflect(rayDir, hitNormal);
Vector3[] dirs = RayTraceTool.GetRandomDirs_BlinnPhong_Importance2(hitNormal, reflectDir, glossiness, reflectSample);
for (int i = 0; i < reflectSample; i++)
{
finalLightColor += TraceColor(hitPos + hitNormal * 0.01f, dirs[i], 1, depth - 1);//间接光贡献
}
finalLightColor /= (reflectSample);
}
reflectColor = Color.Lerp(Color.white, texColor, model.material.metallic) * finalLightColor;
}
Color diffuseColor = Color.black;
{
Color finalLightColor = GetAllLightsColor(model, hitPos, hitNormal) * (diffuseSample + scene.lights.Length);//光源直接贡献
if (diffuseSample > 0)
{
Vector3 reflectDir = Vector3.Reflect(rayDir, hitNormal);
Vector3[] dirs = RayTraceTool.GetRandomDirs_RoundProj(hitNormal, diffuseSample);
for (int i = 0; i < diffuseSample; i++)
{
finalLightColor += TraceColor(hitPos + hitNormal * 0.01f, dirs[i], 1, depth - 1);//间接光贡献
}
}
finalLightColor /= (diffuseSample + scene.lights.Length);
diffuseColor = texColor * finalLightColor;
}
//Color reflectColor = Color.black;
//if(reflectFactor > 0.01f){
// Vector3 refDir = Vector3.Reflect(rayDir,hitNormal);
// Color finalLightColor = TraceColor(hitPos + refDir * 0.01f, refDir,reflectSample ,depth - 1);
// reflectColor = finalLightColor;
//}
finaleColor = reflectColor * reflectFactor + diffuseColor * diffuseFactor;
if (texColor.a < 0.99f)
{
Color transColor = TraceColor(hitPos + rayDir * 0.01f, rayDir, transSample, depth);
if (model.material.GetRenderMode() == SimpleMaterial.RenderMode.Alphablend)
{
finaleColor = finaleColor * texColor.a + transColor * (1 - texColor.a);
}
else if (model.material.GetRenderMode() == SimpleMaterial.RenderMode.Multiply)
{
finaleColor = finaleColor * transColor;
}
else if (model.material.GetRenderMode() == SimpleMaterial.RenderMode.Additive)
{
finaleColor = finaleColor + transColor;
}
}
return(finaleColor);
}
}
public void Release()
{
RayTrace.Release();
SimpleMaterial.textures.Clear();
scene = null;
}
public void Init()
{
Instance = this;
updateProgress(0);
HaltonTool.InitHaltonSequence();
Debug.Log("Start Time : " + Time.realtimeSinceStartup);
scene = new SimpleScene();
RayTrace.Init();
SimpleMaterial.textures.Clear();
scene.lights = GameObject.FindObjectsOfType <Light>();
Camera cam = GetComponent <Camera>();
if (cam)
{
MeshRenderer[] renderers = GameObject.FindObjectsOfType <MeshRenderer>();
foreach (MeshRenderer r in renderers)
{
bool isLayerVisible = ((1 << r.gameObject.layer) & cam.cullingMask) != 0;
if (r.isVisible && isLayerVisible)
{
MeshFilter filter = r.gameObject.GetComponent <MeshFilter>();
if (filter && filter.sharedMesh)
{
for (int i = 0; i < filter.sharedMesh.subMeshCount; i++)
{
Mesh mesh = filter.sharedMesh;
int[] triangles = filter.sharedMesh.GetTriangles(i);
RayTrace.AddMesh(filter.gameObject.transform, mesh.vertexCount, triangles.Length, mesh.vertices, triangles, 1);
SimpleModel model = new SimpleModel(r.gameObject.transform, filter.sharedMesh, i, r.sharedMaterials[i]);
model.lights = RayTraceTool.GetActivityLights(r, scene);
scene.models.Add(model);
}
}
}
}
Terrain[] terrains = GameObject.FindObjectsOfType <Terrain>();
foreach (Terrain terrain in terrains)
{
bool isLayerVisible = ((1 << terrain.gameObject.layer) & cam.cullingMask) != 0;
if (terrain.gameObject.activeInHierarchy && isLayerVisible)
{
int w = terrain.terrainData.heightmapWidth;
int h = terrain.terrainData.heightmapHeight;
float realWidth = terrain.terrainData.size.x * (1 + 1f / w);
float realHeight = terrain.terrainData.size.z * (1 + 1f / h);
float[,] heights = terrain.terrainData.GetHeights(0, 0, w, h);
Vector3[] vertices = new Vector3[w * h];
Vector2[] uvs = new Vector2[vertices.Length];
Vector3[] normals = new Vector3[vertices.Length];
int[] triangles = new int[(w - 1) * (h - 1) * 2 * 3];
for (int i = 0; i < w; i++)
{
for (int j = 0; j < h; j++)
{
Vector3 pos = new Vector3(i * realWidth / w, heights[j, i] * terrain.terrainData.size.y, j * realHeight / h);
vertices[j * w + i] = pos;
uvs[j * w + i] = new Vector2(i / (float)w, j / (float)h);
normals[j * w + i] = terrain.terrainData.GetInterpolatedNormal(i / (float)w, j / (float)h);
}
}
for (int i = 0; i < w - 1; i++)
{
for (int j = 0; j < h - 1; j++)
{
int index = (j * (w - 1) + i) * 6;
triangles[index + 0] = (i + 0) + (j + 0) * w;
triangles[index + 1] = (i + 1) + (j + 1) * w;
triangles[index + 2] = (i + 1) + (j + 0) * w;
triangles[index + 3] = (i + 0) + (j + 0) * w;
triangles[index + 4] = (i + 0) + (j + 1) * w;
triangles[index + 5] = (i + 1) + (j + 1) * w;
}
}
RayTrace.AddMesh(terrain.transform, vertices.Length, triangles.Length, vertices, triangles, 1);
SimpleModel model = new SimpleModel();
model.mesh = new SimpleMesh(triangles, uvs, vertices, normals);
model.material = new SimpleTerrainMaterial(terrain.terrainData);
model.rst = new RayTrace.RST(terrain.transform.rotation, terrain.transform.lossyScale, terrain.transform.position);
model.lights.AddRange(scene.lights);
scene.models.Add(model);
}
}
}
RayTrace.Commit();
texture = new Texture2D(width, height, TextureFormat.ARGB32, true);
//viewResult.sharedMaterial.mainTexture = texture;
}