WPF下的三维点云渲染工具或者控件 - 知否问答 - 万象云+社区

void Start() { points = new List<Vector3>(); for (int i = 0; i < 10000; i++) { points.Add(new Vector3(i * cameraWidth, 0, i * cameraHeight)); } } void Update() { if (Input.touchCount > 0) { Touch touch = Input.GetTouch(0); Vector2 touchPos = touch.position; Vector3 touchNormal = touch.normal; float distance = touchPos.distTo cameraPosition; float angle = Mathf.Atan2(touchNormal.y, touchNormal.x); if (distance > 0.1f) { Vector3 point = new Vector3(touchPos.x, touchPos.y, touchPos.z); points.Add(point); } } } void OnRenderScene(Renderer renderer) { // 创建一个渲染器 Camera camera = renderer.mainCamera; // 设置相机的视野范围 cameraFOV = Mathf.Clamp(cameraFOV, 0, 180); // 创建一个渲染器缓冲器 RenderBuffer renderBuffer = new RenderBuffer RenderBufferIdentifier("RenderBuffer"); renderBuffer.material = new Material(UnityObjectEncapsulation.DefaultMaterial); renderBuffer.renderTargetFormat = new RenderTargetFormat.Vector2f(1.0f, 1.0f); // 创建一个渲染器光遮罩 RenderTexture renderTexture = new RenderTexture RenderTextureIdentifier("RenderTexture"); renderTexture.filterMode = FilterMode.Point; renderTexture.renderTexture.width = cameraWidth; renderTexture.renderTexture.height = cameraHeight; renderTexture.minFilter = new MinFilter(MinFilterMode.Bilinear); renderTexture.magFilter = new MagnifyFilter(MagnifyFilterMode.Bilinear); // 渲染三维点云 RenderTexture2D texture = renderBuffer.renderTexture; Vector3[] vertices = points.ToArray(); float[] texcoords = new float[vertices.Length * 3]; for (int i = 0; i < vertices.Length; i++) { vertices[i] = new Vector3(vertices[i].x, vertices[i].y, vertices[i].z); texcoords[i * 3] = vertices[i].x; texcoords[i * 3 + 1] = vertices[i].y; texcoords[i * 3 + 2] = vertices[i].z; } Vector2[] texcoords2D = texcoords.ToVector2Array(); Array.Copy(texcoords2D, 0, texture.width * 2, 0, texcoords2D.Length); Array.Copy(texcoords2D, texcoords2D.Length, texture.height * 2, 0, texcoords2D.Length); // 创建一个三维纹理 RenderTexture2D meshTexture = new RenderTexture2D(); meshTexture.filterMode = FilterMode.Point; meshTexture.renderTexture.width = cameraWidth; meshTexture.renderTexture.height = cameraHeight; meshTexture.minFilter = new MinFilter(MinFilterMode.Bilinear); meshTexture.magFilter = new MagnifyFilter(MagnifyFilterMode.Bilinear); // 使用UnityObjectEncapsulation.DefaultMaterial来渲染纹理 meshTexture.renderBuffer = renderBuffer; meshTexture.renderTexture.color = new Color(1, 1, 1); // 渲染纹理 renderTexture2D = meshTexture.renderTexture; Vector3[] triangles = new Vector3[vertices.Length * 3]; float[] indices = new float[vertices.Length * 3]; for (int i = 0; i < vertices.Length; i++) { triangles[i * 3] = new Vector3(vertices[i].x, vertices[i].y, vertices[i].z); indices[i * 3] = i; indices[i * 3 + 1] = i + 1; indices[i * 3 + 2] = i + 2; } Mesh mesh = new Mesh(); mesh.vertices = triangles; mesh.normals = triangles; mesh.triangles = indices; mesh.uv = new Vector2[vertices.Length * 2]; Array.Copy(texcoords2D, 0, mesh.uv[0], 0, texcoords2D.Length); Array.Copy(texcoords2D, texcoords2D.Length, mesh.uv[1], 0, texcoords2D.Length); mesh.morphTargets = new MorphTarget[] { new MorphTarget("coat", meshTexture) }; // 渲染网格 RenderTexture2D gridTexture = new RenderTexture2D(); gridTexture.filterMode = FilterMode.Point; gridTexture.renderTexture.width = cameraWidth; gridTexture.renderTexture.height = cameraHeight; gridTexture.minFilter = new MinFilter(MinFilterMode.Bilinear); gridTexture.magFilter = new MagnifyFilter(MagnifyFilterMode.Bilinear); // 使用UnityObjectEncapsulation.DefaultMaterial来渲染网格 gridTexture.renderBuffer = renderBuffer; gridTexture.renderTexture.color = new Color(1, 1, 1); // 渲染网格 RenderTexture2D gridMesh = new RenderTexture2D(); gridMesh.filterMode = FilterMode.Point; gridMesh.renderTexture.width = cameraWidth; gridMesh.renderTexture.height = cameraHeight; gridMesh.minFilter = new MinFilter(MinFilterMode.Bilinear); gridMesh.magFilter = new MagnifyFilter(MagnifyFilterMode.Bilinear); // 使用UnityObjectEncapsulation.DefaultMaterial来渲染网格 gridMesh.renderBuffer = renderBuffer; gridMesh.renderTexture.color = new Color(1, 1, 1); // 渲染网格 RenderTexture2D gridMesh2D = new RenderTexture2D(); gridMesh2D.filterMode = FilterMode.Point; gridMesh2D.renderTexture.width = cameraWidth; gridMesh2D.renderTexture.height = cameraHeight; gridMesh2D.minFilter = new MinFilter(MinFilterMode.Bilinear); gridMesh2D.magFilter = new MagnifyFilter(MagnifyFilterMode.Bilinear); // 使用UnityObjectEncapsulation.DefaultMaterial来渲染网格 gridMesh2D.renderBuffer = renderBuffer; gridMesh2D.renderTexture.color = new Color(1, 1, 1); // 使用UnityObjectEncapsulation.DefaultMaterial来渲染网格 gridMesh2D.renderBuffer = renderBuffer; gridMesh2D.renderTexture.color = new Color(1, 1, 1); // 渲染网格 RenderTexture2D gridMesh3D = new RenderTexture2D(); gridMesh3D.filterMode = FilterMode.Point; gridMesh3D.renderTexture.width = cameraWidth; gridMesh3D.renderTexture.height = cameraHeight; gridMesh3D.minFilter = new MinFilter(MinFilterMode.Bilinear); gridMesh3D.magFilter = new MagnifyFilter(MagnifyFilterMode.Bilinear); // 使用UnityObjectEncapsulation.DefaultMaterial来渲染网格 gridMesh3D.renderBuffer = renderBuffer; gridMesh3D.renderTexture.color = new Color(1, 1, 1); // 渲染网格 RenderTexture2D gridMesh4D = new RenderTexture2D(); gridMesh4D.filterMode = FilterMode.Point; gridMesh4D.renderTexture.width = cameraWidth; gridMesh4D.renderTexture.height = cameraHeight; gridMesh4D.minFilter = new MinFilter(MinFilterMode.Bilinear); gridMesh4D.magFilter = new MagnifyFilter(MagnifyFilterMode.Bilinear); // 使用UnityObjectEncapsulation.DefaultMaterial来渲染网格 gridMesh4D.renderBuffer = renderBuffer; gridMesh4D.renderTexture.color = new Color(1, 1, 1); // 渲染网格 RenderTexture2D gridMesh5D = new RenderTexture2D(); gridMesh5D.filterMode = FilterMode.Point; gridMesh5D.renderTexture.width = cameraWidth; gridMesh5D.renderTexture.height = cameraHeight; gridMesh5D.minFilter = new MinFilter(MinFilterMode.Bilinear); gridMesh5D.magFilter = new MagnifyFilter(MagnifyFilterMode.Bilinear); // 使用UnityObjectEncapsulation.DefaultMaterial来渲染网格 gridMesh5D.renderBuffer = renderBuffer; gridMesh5D.renderTexture.color = new Color(1, 1, 1); // 渲染网格 RenderTexture2D gridMesh6D = new RenderTexture2D(); gridMesh6

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