private void DrawBoundingPrimitive(GameTime gameTime, ICollisionPrimitive collisionPrimitive, Color color) { if (collisionPrimitive is SphereCollisionPrimitive) { int primitiveCount = 0; vertexData = new VertexData <VertexPositionColor>(VertexFactory.GetSphereVertices(1, 10, out primitiveCount), PrimitiveType.LineStrip, primitiveCount); coll = collisionPrimitive as SphereCollisionPrimitive; world = Matrix.Identity * Matrix.CreateScale(coll.BoundingSphere.Radius) * Matrix.CreateTranslation(coll.BoundingSphere.Center); this.wireframeEffect.World = world; this.wireframeEffect.View = this.managerParameters.CameraManager.ActiveCamera.View; this.wireframeEffect.Projection = this.managerParameters.CameraManager.ActiveCamera.ProjectionParameters.Projection; this.wireframeEffect.DiffuseColor = Color.White.ToVector3(); this.wireframeEffect.CurrentTechnique.Passes[0].Apply(); vertexData.Draw(gameTime, this.wireframeEffect); } else { BoxCollisionPrimitive coll = collisionPrimitive as BoxCollisionPrimitive; BoundingBoxBuffers buffers = BoundingBoxDrawer.CreateBoundingBoxBuffers(coll.BoundingBox, this.GraphicsDevice); BoundingBoxDrawer.DrawBoundingBox(buffers, this.wireframeEffect, this.GraphicsDevice, this.managerParameters.CameraManager.ActiveCamera); } }
public static void DrawBoundingBox(BoundingBoxBuffers buffers, BasicEffect effect, GraphicsDevice graphicsDevice, Camera3D camera) { graphicsDevice.SetVertexBuffer(buffers.Vertices); graphicsDevice.Indices = buffers.Indices; effect.World = Matrix.Identity; effect.View = camera.View; effect.Projection = camera.ProjectionParameters.Projection; effect.CurrentTechnique.Passes[0].Apply(); foreach (EffectPass pass in effect.CurrentTechnique.Passes) { graphicsDevice.DrawIndexedPrimitives(PrimitiveType.LineList, 0, 0, buffers.VertexCount, 0, buffers.PrimitiveCount); } }
private void DrawCollisionPrimitive(GameTime gameTime, ICollisionPrimitive collisionPrimitive) { if (collisionPrimitive is SphereCollisionPrimitive) { SphereCollisionPrimitive coll = collisionPrimitive as SphereCollisionPrimitive; this.wireframeEffect.World = Matrix.Identity * Matrix.CreateScale(coll.BoundingSphere.Radius) * Matrix.CreateTranslation(coll.BoundingSphere.Center); this.wireframeEffect.View = this.managerParameters.CameraManager.ActiveCamera.View; this.wireframeEffect.Projection = this.managerParameters.CameraManager.ActiveCamera.ProjectionParameters.Projection; this.wireframeEffect.DiffuseColor = sphereColor.ToVector3(); this.wireframeEffect.CurrentTechnique.Passes[0].Apply(); sphereVertexData.Draw(gameTime, this.wireframeEffect); } else { BoxCollisionPrimitive coll = collisionPrimitive as BoxCollisionPrimitive; BoundingBoxBuffers buffers = BoundingBoxDrawer.CreateBoundingBoxBuffers(coll.BoundingBox, this.GraphicsDevice, boxColor); BoundingBoxDrawer.DrawBoundingBox(buffers, this.wireframeEffect, this.GraphicsDevice, this.managerParameters.CameraManager.ActiveCamera); } }
public static BoundingBoxBuffers CreateBoundingBoxBuffers(BoundingBox boundingBox, GraphicsDevice graphicsDevice) { BoundingBoxBuffers boundingBoxBuffers = new BoundingBoxBuffers(); boundingBoxBuffers.PrimitiveCount = 24; boundingBoxBuffers.VertexCount = 48; VertexBuffer vertexBuffer = new VertexBuffer(graphicsDevice, typeof(VertexPositionColor), boundingBoxBuffers.VertexCount, BufferUsage.WriteOnly); List <VertexPositionColor> vertices = new List <VertexPositionColor>(); const float ratio = 5.0f; Vector3 xOffset = new Vector3((boundingBox.Max.X - boundingBox.Min.X) / ratio, 0, 0); Vector3 yOffset = new Vector3(0, (boundingBox.Max.Y - boundingBox.Min.Y) / ratio, 0); Vector3 zOffset = new Vector3(0, 0, (boundingBox.Max.Z - boundingBox.Min.Z) / ratio); Vector3[] corners = boundingBox.GetCorners(); // Corner 1. AddVertex(vertices, corners[0]); AddVertex(vertices, corners[0] + xOffset); AddVertex(vertices, corners[0]); AddVertex(vertices, corners[0] - yOffset); AddVertex(vertices, corners[0]); AddVertex(vertices, corners[0] - zOffset); // Corner 2. AddVertex(vertices, corners[1]); AddVertex(vertices, corners[1] - xOffset); AddVertex(vertices, corners[1]); AddVertex(vertices, corners[1] - yOffset); AddVertex(vertices, corners[1]); AddVertex(vertices, corners[1] - zOffset); // Corner 3. AddVertex(vertices, corners[2]); AddVertex(vertices, corners[2] - xOffset); AddVertex(vertices, corners[2]); AddVertex(vertices, corners[2] + yOffset); AddVertex(vertices, corners[2]); AddVertex(vertices, corners[2] - zOffset); // Corner 4. AddVertex(vertices, corners[3]); AddVertex(vertices, corners[3] + xOffset); AddVertex(vertices, corners[3]); AddVertex(vertices, corners[3] + yOffset); AddVertex(vertices, corners[3]); AddVertex(vertices, corners[3] - zOffset); // Corner 5. AddVertex(vertices, corners[4]); AddVertex(vertices, corners[4] + xOffset); AddVertex(vertices, corners[4]); AddVertex(vertices, corners[4] - yOffset); AddVertex(vertices, corners[4]); AddVertex(vertices, corners[4] + zOffset); // Corner 6. AddVertex(vertices, corners[5]); AddVertex(vertices, corners[5] - xOffset); AddVertex(vertices, corners[5]); AddVertex(vertices, corners[5] - yOffset); AddVertex(vertices, corners[5]); AddVertex(vertices, corners[5] + zOffset); // Corner 7. AddVertex(vertices, corners[6]); AddVertex(vertices, corners[6] - xOffset); AddVertex(vertices, corners[6]); AddVertex(vertices, corners[6] + yOffset); AddVertex(vertices, corners[6]); AddVertex(vertices, corners[6] + zOffset); // Corner 8. AddVertex(vertices, corners[7]); AddVertex(vertices, corners[7] + xOffset); AddVertex(vertices, corners[7]); AddVertex(vertices, corners[7] + yOffset); AddVertex(vertices, corners[7]); AddVertex(vertices, corners[7] + zOffset); vertexBuffer.SetData(vertices.ToArray()); boundingBoxBuffers.Vertices = vertexBuffer; IndexBuffer indexBuffer = new IndexBuffer(graphicsDevice, IndexElementSize.SixteenBits, boundingBoxBuffers.VertexCount, BufferUsage.WriteOnly); indexBuffer.SetData(Enumerable.Range(0, boundingBoxBuffers.VertexCount).Select(i => (short)i).ToArray()); boundingBoxBuffers.Indices = indexBuffer; return(boundingBoxBuffers); }
public static BoundingBoxBuffers CreateBoundingBoxBuffers(BoundingBox boundingBox, GraphicsDevice graphicsDevice) { BoundingBoxBuffers boundingBoxBuffers = new BoundingBoxBuffers(); boundingBoxBuffers.PrimitiveCount = 24; boundingBoxBuffers.VertexCount = 48; VertexBuffer vertexBuffer = new VertexBuffer(graphicsDevice, typeof(VertexPositionColor), boundingBoxBuffers.VertexCount, BufferUsage.WriteOnly); List<VertexPositionColor> vertices = new List<VertexPositionColor>(); const float ratio = 5.0f; Vector3 xOffset = new Vector3((boundingBox.Max.X - boundingBox.Min.X) / ratio, 0, 0); Vector3 yOffset = new Vector3(0, (boundingBox.Max.Y - boundingBox.Min.Y) / ratio, 0); Vector3 zOffset = new Vector3(0, 0, (boundingBox.Max.Z - boundingBox.Min.Z) / ratio); Vector3[] corners = boundingBox.GetCorners(); // Corner 1. AddVertex(vertices, corners[0]); AddVertex(vertices, corners[0] + xOffset); AddVertex(vertices, corners[0]); AddVertex(vertices, corners[0] - yOffset); AddVertex(vertices, corners[0]); AddVertex(vertices, corners[0] - zOffset); // Corner 2. AddVertex(vertices, corners[1]); AddVertex(vertices, corners[1] - xOffset); AddVertex(vertices, corners[1]); AddVertex(vertices, corners[1] - yOffset); AddVertex(vertices, corners[1]); AddVertex(vertices, corners[1] - zOffset); // Corner 3. AddVertex(vertices, corners[2]); AddVertex(vertices, corners[2] - xOffset); AddVertex(vertices, corners[2]); AddVertex(vertices, corners[2] + yOffset); AddVertex(vertices, corners[2]); AddVertex(vertices, corners[2] - zOffset); // Corner 4. AddVertex(vertices, corners[3]); AddVertex(vertices, corners[3] + xOffset); AddVertex(vertices, corners[3]); AddVertex(vertices, corners[3] + yOffset); AddVertex(vertices, corners[3]); AddVertex(vertices, corners[3] - zOffset); // Corner 5. AddVertex(vertices, corners[4]); AddVertex(vertices, corners[4] + xOffset); AddVertex(vertices, corners[4]); AddVertex(vertices, corners[4] - yOffset); AddVertex(vertices, corners[4]); AddVertex(vertices, corners[4] + zOffset); // Corner 6. AddVertex(vertices, corners[5]); AddVertex(vertices, corners[5] - xOffset); AddVertex(vertices, corners[5]); AddVertex(vertices, corners[5] - yOffset); AddVertex(vertices, corners[5]); AddVertex(vertices, corners[5] + zOffset); // Corner 7. AddVertex(vertices, corners[6]); AddVertex(vertices, corners[6] - xOffset); AddVertex(vertices, corners[6]); AddVertex(vertices, corners[6] + yOffset); AddVertex(vertices, corners[6]); AddVertex(vertices, corners[6] + zOffset); // Corner 8. AddVertex(vertices, corners[7]); AddVertex(vertices, corners[7] + xOffset); AddVertex(vertices, corners[7]); AddVertex(vertices, corners[7] + yOffset); AddVertex(vertices, corners[7]); AddVertex(vertices, corners[7] + zOffset); vertexBuffer.SetData(vertices.ToArray()); boundingBoxBuffers.Vertices = vertexBuffer; IndexBuffer indexBuffer = new IndexBuffer(graphicsDevice, IndexElementSize.SixteenBits, boundingBoxBuffers.VertexCount, BufferUsage.WriteOnly); indexBuffer.SetData(Enumerable.Range(0, boundingBoxBuffers.VertexCount).Select(i => (short)i).ToArray()); boundingBoxBuffers.Indices = indexBuffer; return boundingBoxBuffers; }
public static void DrawBoundingBox(BoundingBoxBuffers buffers, BasicEffect effect, GraphicsDevice graphicsDevice, Camera3D camera) { graphicsDevice.SetVertexBuffer(buffers.Vertices); graphicsDevice.Indices = buffers.Indices; effect.World = Matrix.Identity; effect.View = camera.View; effect.Projection = camera.ProjectionParameters.Projection; foreach (EffectPass pass in effect.CurrentTechnique.Passes) { pass.Apply(); graphicsDevice.DrawIndexedPrimitives(PrimitiveType.LineList, 0, 0, buffers.VertexCount, 0, buffers.PrimitiveCount); } }