private static void CalculateMinMaxDistance(ref Plane plane, ref BoundingBoxExt boundingBox, ref float minDistance, ref float maxDistance)
{
var nearCorner = boundingBox.Minimum;
var farCorner = boundingBox.Maximum;
if (plane.Normal.X < 0)
{
Utilities.Swap(ref nearCorner.X, ref farCorner.X);
}
if (plane.Normal.Y < 0)
{
Utilities.Swap(ref nearCorner.Y, ref farCorner.Y);
}
if (plane.Normal.Z < 0)
{
Utilities.Swap(ref nearCorner.Z, ref farCorner.Z);
}
float oldDistance;
// Interlocked exchange if lower
var distance = CollisionHelper.DistancePlanePoint(ref plane, ref nearCorner);
while ((oldDistance = minDistance) > distance && Interlocked.CompareExchange(ref minDistance, distance, oldDistance) != oldDistance)
{
}
// Interlocked exchange if greater
distance = CollisionHelper.DistancePlanePoint(ref plane, ref farCorner);
while ((oldDistance = maxDistance) < distance && Interlocked.CompareExchange(ref maxDistance, distance, oldDistance) != oldDistance)
{
}
}
private static bool FrustumContainsBox(ref BoundingFrustum frustum, ref BoundingBoxExt boundingBoxExt, bool ignoreDepthPlanes)
{
unsafe
{
fixed(Plane *planeStart = &frustum.LeftPlane)
{
var plane = planeStart;
for (int i = 0; i < 6; ++i)
{
if (ignoreDepthPlanes && i > 3)
{
continue;
}
// Previous code:
if (Vector3.Dot(boundingBoxExt.Center, plane->Normal)
+ boundingBoxExt.Extent.X * Math.Abs(plane->Normal.X)
+ boundingBoxExt.Extent.Y * Math.Abs(plane->Normal.Y)
+ boundingBoxExt.Extent.Z * Math.Abs(plane->Normal.Z)
<= -plane->D)
{
return(false);
}
plane++;
}
}
return(true);
}
}
// TODO: Find a way to replug this
/// <summary>
/// Adds a default frustum culling for rendering only meshes that are only inside the frustum/
/// </summary>
/// <param name="modelRenderer">The model renderer.</param>
/// <returns>ModelRenderer.</returns>
//public static ModelComponentRenderer AddDefaultFrustumCulling(this ModelComponentRenderer modelRenderer)
//{
// modelRenderer.UpdateMeshes = FrustumCulling;
// return modelRenderer;
//}
private static void FrustumCulling(RenderContext context, FastList <RenderMesh> meshes)
{
Matrix viewProjection, mat1, mat2;
// Compute view * projection
context.Parameters.Get(TransformationKeys.View, out mat1);
context.Parameters.Get(TransformationKeys.Projection, out mat2);
Matrix.Multiply(ref mat1, ref mat2, out viewProjection);
var frustum = new BoundingFrustum(ref viewProjection);
for (var i = 0; i < meshes.Count; ++i)
{
var renderMesh = meshes[i];
// Fast AABB transform: http://zeuxcg.org/2010/10/17/aabb-from-obb-with-component-wise-abs/
// Get world matrix
renderMesh.Mesh.Parameters.Get(TransformationKeys.World, out mat1);
// Compute transformed AABB (by world)
var boundingBoxExt = new BoundingBoxExt(renderMesh.Mesh.BoundingBox);
boundingBoxExt.Transform(mat1);
// Perform frustum culling
if (!frustum.Contains(ref boundingBoxExt))
{
meshes.SwapRemoveAt(i--);
}
}
}
internal void CalculateBoundingBox()
{
// update the sprite bounding box
var halfSpriteSize = Sprite?.Size / 2 ?? Vector2.Zero;
// Only calculate if we've changed...
if (lastWorldMatrix != WorldMatrix || lastHalfSpriteSize != halfSpriteSize || lastSpriteType != SpriteType)
{
Vector3 halfBoxSize;
var boxWorldPosition = WorldMatrix.TranslationVector;
if (SpriteType == SpriteType.Billboard)
{
// Make a gross estimation here as we don't have access to the camera view matrix
// TODO: move this code or grant camera view matrix access to this processor
var maxScale = Math.Max(WorldMatrix.Row1.Length(), Math.Max(WorldMatrix.Row2.Length(), WorldMatrix.Row3.Length()));
halfBoxSize = maxScale * halfSpriteSize.Length() * Vector3.One;
}
else
{
halfBoxSize = new Vector3(
Math.Abs(WorldMatrix.M11 * halfSpriteSize.X) + Math.Abs(WorldMatrix.M21 * halfSpriteSize.Y),
Math.Abs(WorldMatrix.M12 * halfSpriteSize.X) + Math.Abs(WorldMatrix.M22 * halfSpriteSize.Y),
Math.Abs(WorldMatrix.M13 * halfSpriteSize.X) + Math.Abs(WorldMatrix.M23 * halfSpriteSize.Y));
}
// Update bounding box
BoundingBox = new BoundingBoxExt(boxWorldPosition - halfBoxSize, boxWorldPosition + halfBoxSize);
// Save current state for next check
lastWorldMatrix = WorldMatrix;
lastHalfSpriteSize = halfSpriteSize;
lastSpriteType = SpriteType;
}
}
public void Build(RenderDrawContext context)
{
if (Mesh == null && TryGetHeightMapImageData(context.CommandList, out var data))
{
Data = new GeometryBuilder(data).BuildTerrainData(Size, MaxHeight, UvScale);
MeshBoundingBox = Utils.FromPoints(Data.Vertices);
MeshBoundingSphere = BoundingSphere.FromBox(MeshBoundingBox);
BoundingBox = new BoundingBoxExt(MeshBoundingBox);
var vertexBuffer = Buffer.Vertex.New(context.GraphicsDevice, Data.Vertices, GraphicsResourceUsage.Dynamic);
var indexBuffer = Buffer.Index.New(context.GraphicsDevice, Data.Indices);
var vertexBufferBinding = new VertexBufferBinding(vertexBuffer, VertexPositionNormalTexture.Layout, vertexBuffer.ElementCount);
var indexBufferBinding = new IndexBufferBinding(indexBuffer, true, indexBuffer.ElementCount);
MeshDraw = new MeshDraw
{
StartLocation = 0,
PrimitiveType = PrimitiveType.TriangleList,
VertexBuffers = new[] { vertexBufferBinding },
IndexBuffer = indexBufferBinding,
DrawCount = indexBuffer.ElementCount
};
Mesh = new Mesh(MeshDraw, new ParameterCollection());
}
}
// TODO: Find a way to replug this
/// <summary>
/// Adds a default frustum culling for rendering only meshes that are only inside the frustum/
/// </summary>
/// <param name="modelRenderer">The model renderer.</param>
/// <returns>ModelRenderer.</returns>
//public static ModelComponentRenderer AddDefaultFrustumCulling(this ModelComponentRenderer modelRenderer)
//{
// modelRenderer.UpdateMeshes = FrustumCulling;
// return modelRenderer;
//}
private static void FrustumCulling(RenderContext context, FastList<RenderMesh> meshes)
{
Matrix viewProjection, mat1, mat2;
// Compute view * projection
context.Parameters.Get(TransformationKeys.View, out mat1);
context.Parameters.Get(TransformationKeys.Projection, out mat2);
Matrix.Multiply(ref mat1, ref mat2, out viewProjection);
var frustum = new BoundingFrustum(ref viewProjection);
for (var i = 0; i < meshes.Count; ++i)
{
var renderMesh = meshes[i];
// Fast AABB transform: http://zeuxcg.org/2010/10/17/aabb-from-obb-with-component-wise-abs/
// Get world matrix
renderMesh.Mesh.Parameters.Get(TransformationKeys.World, out mat1);
// Compute transformed AABB (by world)
var boundingBoxExt = new BoundingBoxExt(renderMesh.Mesh.BoundingBox);
boundingBoxExt.Transform(mat1);
// Perform frustum culling
if (!frustum.Contains(ref boundingBoxExt))
{
meshes.SwapRemoveAt(i--);
}
}
}
private static void CalculateMinMaxDistance(ref Plane plane, ref BoundingBoxExt boundingBox, ref float minDistance, ref float maxDistance)
{
var nearCorner = boundingBox.Minimum;
var farCorner = boundingBox.Maximum;
if (plane.Normal.X < 0)
{
Utilities.Swap(ref nearCorner.X, ref farCorner.X);
}
if (plane.Normal.Y < 0)
{
Utilities.Swap(ref nearCorner.Y, ref farCorner.Y);
}
if (plane.Normal.Z < 0)
{
Utilities.Swap(ref nearCorner.Z, ref farCorner.Z);
}
var distance = CollisionHelper.DistancePlanePoint(ref plane, ref nearCorner);
if (minDistance > distance)
{
minDistance = distance;
}
distance = CollisionHelper.DistancePlanePoint(ref plane, ref farCorner);
if (maxDistance < distance)
{
maxDistance = distance;
}
}
public static void Update(ModelViewHierarchyUpdater hierarchy, RenderModel renderModel, int slot)
{
var boneMatrices = staticBoneMatrices;
var meshes = renderModel.RenderMeshesList[slot];
{
if (meshes == null)
{
return;
}
foreach (var renderMesh in meshes)
{
var mesh = renderMesh.Mesh;
var skinning = mesh.Skinning;
if (skinning == null)
{
// For unskinned meshes, use the original bounding box
var boundingBoxExt = (BoundingBoxExt)mesh.BoundingBox;
boundingBoxExt.Transform(renderMesh.WorldMatrix);
renderMesh.BoundingBox = boundingBoxExt;
continue;
}
var bones = skinning.Bones;
// Make sure there is enough spaces in boneMatrices
if (boneMatrices == null || bones.Length > boneMatrices.Length)
{
staticBoneMatrices = boneMatrices = new Matrix[bones.Length];
}
var bindPoseBoundingBox = new BoundingBoxExt(renderMesh.Mesh.BoundingBox);
renderMesh.BoundingBox = BoundingBoxExt.Empty;
for (int index = 0; index < bones.Length; index++)
{
var nodeIndex = bones[index].NodeIndex;
// Compute bone matrix
Matrix.Multiply(ref bones[index].LinkToMeshMatrix, ref hierarchy.NodeTransformations[nodeIndex].WorldMatrix, out boneMatrices[index]);
// Calculate and extend bounding box for each bone
// TODO: Move runtime bounding box into ModelViewHierarchyUpdater?
// Fast AABB transform: http://zeuxcg.org/2010/10/17/aabb-from-obb-with-component-wise-abs/
// Compute transformed AABB (by world)
var boundingBoxExt = bindPoseBoundingBox;
boundingBoxExt.Transform(boneMatrices[index]);
BoundingBoxExt.Merge(ref renderMesh.BoundingBox, ref boundingBoxExt, out renderMesh.BoundingBox);
}
// Upload bones
renderMesh.Parameters.Set(TransformationSkinningKeys.BlendMatrixArray, boneMatrices, 0, bones.Length);
}
}
}
internal void Update(TransformComponent transformComponent, ref Matrix worldMatrix)
{
if (!Enabled || ModelViewHierarchy == null || model == null)
{
return;
}
// Check if scaling is negative
bool isScalingNegative = false;
{
Vector3 scale, translation;
Matrix rotation;
if (worldMatrix.Decompose(out scale, out rotation, out translation))
{
isScalingNegative = scale.X * scale.Y * scale.Z < 0.0f;
}
}
// Update model view hierarchy node matrices
modelViewHierarchy.NodeTransformations[0].LocalMatrix = worldMatrix;
modelViewHierarchy.NodeTransformations[0].IsScalingNegative = isScalingNegative;
modelViewHierarchy.UpdateMatrices();
// Update the bounding sphere / bounding box in world space
var meshes = Model.Meshes;
var modelBoundingSphere = BoundingSphere.Empty;
var modelBoundingBox = BoundingBox.Empty;
bool hasBoundingBox = false;
Matrix world;
foreach (var mesh in meshes)
{
var meshBoundingSphere = mesh.BoundingSphere;
modelViewHierarchy.GetWorldMatrix(mesh.NodeIndex, out world);
Vector3.TransformCoordinate(ref meshBoundingSphere.Center, ref world, out meshBoundingSphere.Center);
BoundingSphere.Merge(ref modelBoundingSphere, ref meshBoundingSphere, out modelBoundingSphere);
var boxExt = new BoundingBoxExt(mesh.BoundingBox);
boxExt.Transform(world);
var meshBox = (BoundingBox)boxExt;
if (hasBoundingBox)
{
BoundingBox.Merge(ref modelBoundingBox, ref meshBox, out modelBoundingBox);
}
else
{
modelBoundingBox = meshBox;
}
hasBoundingBox = true;
}
// Update the bounds
BoundingBox = modelBoundingBox;
BoundingSphere = modelBoundingSphere;
}
private static void BoundingBoxIgnoreWorld(InstancingData instancingData, IInstancing instancing, ModelComponent.MeshInfo meshInfo, Mesh mesh)
{
// We need to remove the world transformation component
if (instancingData.ModelComponent.Skeleton != null)
{
var ibb = instancing.BoundingBox;
var mbb = new BoundingBoxExt(meshInfo.BoundingBox);
Matrix.Invert(ref instancingData.ModelComponent.Skeleton.NodeTransformations[0].LocalMatrix, out var invWorld);
public static void Update(ModelViewHierarchyUpdater hierarchy, RenderModel renderModel, int slot)
{
var boneMatrices = staticBoneMatrices;
var meshes = renderModel.RenderMeshesList[slot];
{
if (meshes == null)
{
return;
}
foreach (var renderMesh in meshes)
{
var mesh = renderMesh.Mesh;
var skinning = mesh.Skinning;
if (skinning == null)
{
// For unskinned meshes, use the original bounding box
var boundingBoxExt = (BoundingBoxExt)mesh.BoundingBox;
boundingBoxExt.Transform(renderMesh.WorldMatrix);
renderMesh.BoundingBox = boundingBoxExt;
continue;
}
var bones = skinning.Bones;
// Make sure there is enough spaces in boneMatrices
if (boneMatrices == null || bones.Length > boneMatrices.Length)
staticBoneMatrices = boneMatrices = new Matrix[bones.Length];
var bindPoseBoundingBox = new BoundingBoxExt(renderMesh.Mesh.BoundingBox);
renderMesh.BoundingBox = BoundingBoxExt.Empty;
for (int index = 0; index < bones.Length; index++)
{
var nodeIndex = bones[index].NodeIndex;
// Compute bone matrix
Matrix.Multiply(ref bones[index].LinkToMeshMatrix, ref hierarchy.NodeTransformations[nodeIndex].WorldMatrix, out boneMatrices[index]);
// Calculate and extend bounding box for each bone
// TODO: Move runtime bounding box into ModelViewHierarchyUpdater?
// Fast AABB transform: http://zeuxcg.org/2010/10/17/aabb-from-obb-with-component-wise-abs/
// Compute transformed AABB (by world)
var boundingBoxExt = bindPoseBoundingBox;
boundingBoxExt.Transform(boneMatrices[index]);
BoundingBoxExt.Merge(ref renderMesh.BoundingBox, ref boundingBoxExt, out renderMesh.BoundingBox);
}
// Upload bones
renderMesh.Parameters.Set(TransformationSkinningKeys.BlendMatrixArray, boneMatrices, 0, bones.Length);
}
}
}
/// <summary>
/// Updates this instance( <see cref="Position"/>, <see cref="Direction"/>, <see cref="HasBoundingBox"/>, <see cref="BoundingBox"/>, <see cref="BoundingBoxExt"/>
/// </summary>
/// <param name="colorSpace"></param>
internal void UpdateBoundingBox()
{
// Compute bounding boxes
HasBoundingBox = false;
BoundingBox = new BoundingBox();
BoundingBoxExt = new BoundingBoxExt();
var directLight = Type as IDirectLight;
if (directLight != null && directLight.HasBoundingBox)
{
// Computes the bounding boxes
BoundingBox = directLight.ComputeBounds(Position, Direction);
BoundingBoxExt = new BoundingBoxExt(BoundingBox);
}
}
protected virtual void CalculateBounds(ref ShortPoint location, out BoundingBoxExt bounds, out Vector2 origin)
{
var blockSize = BlockSize;
int left, top, right, bottom;
GridBlock.CalculateEdges(ref blockSize, ref location, out left, out top, out right, out bottom);
var size = CellSize;
var topLeft = new Vector3(left * size.X, top * size.Y, 0);
var bottomRight = new Vector3(right * size.X, bottom * size.Y, 0);
Vector3 min, max;
Vector3.Min(ref topLeft, ref bottomRight, out min);
Vector3.Max(ref topLeft, ref bottomRight, out max);
bounds = new BoundingBoxExt(min, max);
origin = topLeft.XY();
}
private void SetupLight(RenderDrawContext context, RenderLightShaft lightShaft, LightShadowMapTexture shadowMapTexture, ParameterCollection lightParameterCollection)
{
BoundingBoxExt box = new BoundingBoxExt(new Vector3(-float.MaxValue), new Vector3(float.MaxValue)); // TODO
LightShaftRenderData data;
if (!renderData.TryGetValue(lightShaft.Light2, out data))
{
data = new LightShaftRenderData();
renderData.Add(lightShaft.Light2, data);
UpdateRenderData(context, data, lightShaft, shadowMapTexture);
}
if (shadowMapTexture != null && data.ShadowMapRenderer != null)
{
// Detect changed shadow map renderer or type
if (data.ShadowMapRenderer != shadowMapTexture.Renderer || data.ShadowType != shadowMapTexture.ShadowType)
{
UpdateRenderData(context, data, lightShaft, shadowMapTexture);
}
}
else if (shadowMapTexture?.Renderer != data.ShadowMapRenderer) // Change from no shadows to shadows
{
UpdateRenderData(context, data, lightShaft, shadowMapTexture);
}
data.RenderViews[0] = context.RenderContext.RenderView;
data.ShaderGroup.Reset();
data.ShaderGroup.SetViews(data.RenderViews);
data.ShaderGroup.AddView(0, context.RenderContext.RenderView, 1);
data.ShaderGroup.AddLight(lightShaft.Light, shadowMapTexture);
data.ShaderGroup.UpdateLayout("lightGroup");
lightParameterCollection.Set(LightShaftsEffectKeys.LightGroup, data.ShaderGroup.ShaderSource);
// Update the effect here so the layout is correct
lightShaftsEffectShader.EffectInstance.UpdateEffect(GraphicsDevice);
data.ShaderGroup.ApplyViewParameters(context, 0, lightParameterCollection);
data.ShaderGroup.ApplyDrawParameters(context, 0, lightParameterCollection, ref box);
data.UsageCounter = usageCounter;
}
internal void Update(ref Matrix worldMatrix, bool isScalingNegative)
{
// Update model view hierarchy node matrices
modelViewHierarchy.NodeTransformations[0].LocalMatrix = worldMatrix;
modelViewHierarchy.NodeTransformations[0].IsScalingNegative = isScalingNegative;
modelViewHierarchy.UpdateMatrices();
// Update the bounding sphere / bounding box in world space
var meshes = Model.Meshes;
var modelBoundingSphere = BoundingSphere.Empty;
var modelBoundingBox = BoundingBox.Empty;
bool hasBoundingBox = false;
Matrix world;
foreach (var mesh in meshes)
{
var meshBoundingSphere = mesh.BoundingSphere;
modelViewHierarchy.GetWorldMatrix(mesh.NodeIndex, out world);
Vector3.TransformCoordinate(ref meshBoundingSphere.Center, ref world, out meshBoundingSphere.Center);
BoundingSphere.Merge(ref modelBoundingSphere, ref meshBoundingSphere, out modelBoundingSphere);
var boxExt = new BoundingBoxExt(mesh.BoundingBox);
boxExt.Transform(world);
var meshBox = (BoundingBox)boxExt;
if (hasBoundingBox)
{
BoundingBox.Merge(ref modelBoundingBox, ref meshBox, out modelBoundingBox);
}
else
{
modelBoundingBox = meshBox;
}
hasBoundingBox = true;
}
// Update the bounds
BoundingBox = modelBoundingBox;
BoundingSphere = modelBoundingSphere;
}
public override void ApplyDrawParameters(RenderDrawContext context, int viewIndex, ParameterCollection parameters, ref BoundingBoxExt boundingBox)
{
// TODO THREADING: Make CurrentLights and lightData (thread-) local
lock (applyLock)
{
CurrentLights.Clear();
var lightRange = LightRanges[viewIndex];
for (int i = lightRange.Start; i < lightRange.End; ++i)
CurrentLights.Add(Lights[i]);
base.ApplyDrawParameters(context, viewIndex, parameters, ref boundingBox);
// TODO: Octree structure to select best lights quicker
var boundingBox2 = (BoundingBox)boundingBox;
for (int i = 0; i < CurrentLights.Count; i++)
{
var light = CurrentLights[i].Light;
if (light.BoundingBox.Intersects(ref boundingBox2))
{
var spotLight = (LightSpot)light.Type;
lightsData.Add(new SpotLightData
{
PositionWS = light.Position,
DirectionWS = light.Direction,
AngleOffsetAndInvSquareRadius = new Vector3(spotLight.LightAngleScale, spotLight.LightAngleOffset, spotLight.InvSquareRange),
Color = light.Color,
});
// Did we reach max number of simultaneous lights?
// TODO: Still collect everything but sort by importance and remove the rest?
if (lightsData.Count >= LightCurrentCount)
break;
}
}
parameters.Set(countKey, lightsData.Count);
parameters.Set(lightsKey, lightsData.Count, ref lightsData.Items[0]);
lightsData.Clear();
}
}
/// <summary>
/// Updates this instance( <see cref="Position"/>, <see cref="Direction"/>, <see cref="HasBoundingBox"/>, <see cref="BoundingBox"/>, <see cref="BoundingBoxExt"/>
/// </summary>
public bool Update()
{
if (Type == null || !Enabled || !Type.Update(this))
{
return(false);
}
// Compute light direction and position
Vector3 lightDirection;
var lightDir = DefaultDirection;
Vector3.TransformNormal(ref lightDir, ref Entity.Transform.WorldMatrix, out lightDirection);
lightDirection.Normalize();
Position = Entity.Transform.WorldMatrix.TranslationVector;
Direction = lightDirection;
// Color
var colorLight = Type as IColorLight;
Color = (colorLight != null) ? colorLight.ComputeColor(Intensity) : new Color3();
// Compute bounding boxes
HasBoundingBox = false;
BoundingBox = new BoundingBox();
BoundingBoxExt = new BoundingBoxExt();
var directLight = Type as IDirectLight;
if (directLight != null && directLight.HasBoundingBox)
{
// Computes the bounding boxes
BoundingBox = directLight.ComputeBounds(Position, Direction);
BoundingBoxExt = new BoundingBoxExt(BoundingBox);
}
return(true);
}
private void UpdateRenderModel(RenderModel renderModel)
{
if (renderModel.ModelComponent.Model == null)
{
return;
}
var modelComponent = renderModel.ModelComponent;
var modelViewHierarchy = modelComponent.Skeleton;
var nodeTransformations = modelViewHierarchy.NodeTransformations;
// TODO GRAPHICS REFACTOR compute bounding box either by Mesh, or switch to future VisibilityObject system to deal with complete models)
var boundingBox = new BoundingBoxExt(modelComponent.BoundingBox);
var modelComponentMaterials = modelComponent.Materials;
var modelMaterials = renderModel.ModelComponent.Model.Materials;
foreach (var renderMesh in renderModel.Meshes)
{
var mesh = renderMesh.Mesh;
renderMesh.Enabled = modelComponent.Enabled;
if (renderMesh.Enabled)
{
// Update material
var materialIndex = mesh.MaterialIndex;
var materialOverride = modelComponentMaterials.GetItemOrNull(materialIndex);
var modelMaterialInstance = modelMaterials.GetItemOrNull(materialIndex);
UpdateMaterial(renderMesh, materialOverride, modelMaterialInstance, modelComponent);
// Copy world matrix
var nodeIndex = mesh.NodeIndex;
renderMesh.World = nodeTransformations[nodeIndex].WorldMatrix;
renderMesh.BoundingBox = boundingBox;
renderMesh.RenderGroup = modelComponent.Entity.Group;
}
}
}
public override void ApplyDrawParameters(RenderDrawContext context, int viewIndex, ParameterCollection parameters, ref BoundingBoxExt boundingBox)
{
CurrentLights.Clear();
var lightRange = LightRanges[viewIndex];
for (int i = lightRange.Start; i < lightRange.End; ++i)
CurrentLights.Add(Lights[i]);
base.ApplyDrawParameters(context, viewIndex, parameters, ref boundingBox);
// TODO: Since we cull per object, we could maintain a higher number of allowed light than the shader support (i.e. 4 lights active per object even though the scene has many more of them)
// TODO: Octree structure to select best lights quicker
var boundingBox2 = (BoundingBox)boundingBox;
foreach (var lightEntry in CurrentLights)
{
var light = lightEntry.Light;
if (light.BoundingBox.Intersects(ref boundingBox2))
{
var pointLight = (LightPoint)light.Type;
lightsData.Add(new PointLightData
{
PositionWS = light.Position,
InvSquareRadius = pointLight.InvSquareRadius,
Color = light.Color,
});
// Did we reach max number of simultaneous lights?
// TODO: Still collect everything but sort by importance and remove the rest?
if (lightsData.Count >= LightCurrentCount)
break;
}
}
parameters.Set(countKey, lightsData.Count);
parameters.Set(lightsKey, lightsData.Count, ref lightsData.Items[0]);
lightsData.Clear();
}
/// <summary>
/// Applies PerDraw lighting parameters.
/// </summary>
/// <param name="context"></param>
/// <param name="viewIndex"></param>
/// <param name="parameters"></param>
/// <param name="boundingBox"></param>
public virtual void ApplyDrawParameters(FastListStruct <LightDynamicEntry>?lightList, RenderDrawContext context, int viewIndex, ParameterCollection parameters, ref BoundingBoxExt boundingBox)
{
}
/// <inheritdoc/>
public override void ApplyDrawParameters(RenderDrawContext context, int viewIndex, ParameterCollection parameters, ref BoundingBoxExt boundingBox)
{
base.ApplyDrawParameters(context, viewIndex, parameters, ref boundingBox);
ShadowGroup?.ApplyDrawParameters(context, parameters, CurrentLights, ref boundingBox);
}
public override void ApplyDrawParameters(RenderDrawContext context, ParameterCollection parameters, FastListStruct <LightDynamicEntry> currentLights, ref BoundingBoxExt boundingBox)
{
var boundingBox2 = (BoundingBox)boundingBox;
bool shadowMapCreated = false;
int lightIndex = 0;
for (int i = 0; i < currentLights.Count; ++i)
{
var lightEntry = currentLights[i];
if (lightEntry.Light.BoundingBox.Intersects(ref boundingBox2))
{
var shaderData = (ShaderData)lightEntry.ShadowMapTexture.ShaderData;
// Copy per-face data
for (int j = 0; j < 6; j++)
{
worldToShadow[lightIndex * 6 + j] = shaderData.WorldToShadow[j];
inverseWorldToShadow[lightIndex * 6 + j] = Matrix.Invert(shaderData.WorldToShadow[j]);
}
depthBiases[lightIndex] = shaderData.DepthBias;
offsetScales[lightIndex] = shaderData.OffsetScale;
depthParameters[lightIndex] = shaderData.DepthParameters;
lightIndex++;
// TODO: should be setup just once at creation time
if (!shadowMapCreated)
{
shadowMapTexture = shaderData.Texture;
if (shadowMapTexture != null)
{
shadowMapTextureSize = new Vector2(shadowMapTexture.Width, shadowMapTexture.Height);
shadowMapTextureTexelSize = 1.0f / shadowMapTextureSize;
}
shadowMapCreated = true;
}
}
}
parameters.Set(shadowMapTextureKey, shadowMapTexture);
parameters.Set(shadowMapTextureSizeKey, shadowMapTextureSize);
parameters.Set(shadowMapTextureTexelSizeKey, shadowMapTextureTexelSize);
parameters.Set(worldToShadowKey, worldToShadow);
parameters.Set(inverseWorldToShadowKey, inverseWorldToShadow);
parameters.Set(depthParametersKey, depthParameters);
parameters.Set(depthBiasesKey, depthBiases);
parameters.Set(offsetScalesKey, offsetScales);
}
private static bool FrustumContainsBox(ref BoundingFrustum frustum, ref BoundingBoxExt boundingBoxExt, bool ignoreDepthPlanes)
{
unsafe
{
fixed (Plane* planeStart = &frustum.LeftPlane)
{
var plane = planeStart;
for (int i = 0; i < 6; ++i)
{
if (ignoreDepthPlanes && i > 3)
continue;
// Previous code:
if (Vector3.Dot(boundingBoxExt.Center, plane->Normal)
+ boundingBoxExt.Extent.X * Math.Abs(plane->Normal.X)
+ boundingBoxExt.Extent.Y * Math.Abs(plane->Normal.Y)
+ boundingBoxExt.Extent.Z * Math.Abs(plane->Normal.Z)
<= -plane->D)
return false;
plane++;
}
}
return true;
}
}
/// <inheritdoc/>
public override void ApplyDrawParameters(RenderDrawContext context, int viewIndex, ParameterCollection parameters, ref BoundingBoxExt boundingBox)
{
base.ApplyDrawParameters(context, viewIndex, parameters, ref boundingBox);
ShadowGroup?.ApplyDrawParameters(context, parameters, CurrentLights, ref boundingBox);
}
private static void CalculateMinMaxDistance(RenderView view, ref Plane plane, ref BoundingBoxExt boundingBox)
{
// TODO GRAPHICS REFACTOR: Optimize per-view: Only two corners need checking, depending on view direction. Also, currently unnecessary for shadow views.
var minimum = boundingBox.Minimum;
var maximum = boundingBox.Maximum;
var point = minimum;
var distance = CollisionHelper.DistancePlanePoint(ref plane, ref point);
MinMax(distance, ref view.MinimumDistance, ref view.MaximumDistance);
point.X = maximum.X;
distance = CollisionHelper.DistancePlanePoint(ref plane, ref point);
MinMax(distance, ref view.MinimumDistance, ref view.MaximumDistance);
point.Y = maximum.Y;
distance = CollisionHelper.DistancePlanePoint(ref plane, ref point);
MinMax(distance, ref view.MinimumDistance, ref view.MaximumDistance);
point.X = minimum.X;
distance = CollisionHelper.DistancePlanePoint(ref plane, ref point);
MinMax(distance, ref view.MinimumDistance, ref view.MaximumDistance);
point.Z = maximum.Z;
distance = CollisionHelper.DistancePlanePoint(ref plane, ref point);
MinMax(distance, ref view.MinimumDistance, ref view.MaximumDistance);
point.Y = minimum.Y;
distance = CollisionHelper.DistancePlanePoint(ref plane, ref point);
MinMax(distance, ref view.MinimumDistance, ref view.MaximumDistance);
point.X = maximum.X;
distance = CollisionHelper.DistancePlanePoint(ref plane, ref point);
MinMax(distance, ref view.MinimumDistance, ref view.MaximumDistance);
point.Y = maximum.Y;
distance = CollisionHelper.DistancePlanePoint(ref plane, ref point);
MinMax(distance, ref view.MinimumDistance, ref view.MaximumDistance);
}
public override void ApplyDrawParameters(RenderDrawContext context, ParameterCollection parameters, FastListStruct <LightDynamicEntry> currentLights, ref BoundingBoxExt boundingBox)
{
var boundingBox2 = (BoundingBox)boundingBox;
bool shadowMapCreated = false;
int lightIndex = 0;
for (int i = 0; i < currentLights.Count; ++i)
{
var lightEntry = currentLights[i];
var light = lightEntry.Light;
if (light.BoundingBox.Intersects(ref boundingBox2))
{
var singleLightData = (LightSpotShadowMapShaderData)lightEntry.ShadowMapTexture.ShaderData;
worldToShadowCascadeUV[lightIndex] = singleLightData.WorldToShadowCascadeUV;
depthBiases[lightIndex] = singleLightData.DepthBias;
offsetScales[lightIndex] = singleLightData.OffsetScale;
lightIndex++;
if (!shadowMapCreated)
{
shadowMapTexture = singleLightData.Texture;
if (shadowMapTexture != null)
{
shadowMapTextureSize = new Vector2(shadowMapTexture.Width, shadowMapTexture.Height);
shadowMapTextureTexelSize = 1.0f / shadowMapTextureSize;
}
shadowMapCreated = true;
}
}
}
parameters.Set(shadowMapTextureKey, shadowMapTexture);
parameters.Set(shadowMapTextureSizeKey, shadowMapTextureSize);
parameters.Set(shadowMapTextureTexelSizeKey, shadowMapTextureTexelSize);
parameters.Set(worldToShadowCascadeUVsKey, worldToShadowCascadeUV);
parameters.Set(depthBiasesKey, depthBiases);
parameters.Set(offsetScalesKey, offsetScales);
}
internal void Update(ref Matrix worldMatrix)
{
// Update model view hierarchy node matrices
modelViewHierarchy.NodeTransformations[0].LocalMatrix = worldMatrix;
modelViewHierarchy.UpdateMatrices();
// Update the bounding sphere / bounding box in world space
var meshes = Model.Meshes;
var modelBoundingSphere = BoundingSphere.Empty;
var modelBoundingBox = BoundingBox.Empty;
bool hasBoundingBox = false;
Matrix world;
foreach (var mesh in meshes)
{
var meshBoundingSphere = mesh.BoundingSphere;
modelViewHierarchy.GetWorldMatrix(mesh.NodeIndex, out world);
Vector3.TransformCoordinate(ref meshBoundingSphere.Center, ref world, out meshBoundingSphere.Center);
BoundingSphere.Merge(ref modelBoundingSphere, ref meshBoundingSphere, out modelBoundingSphere);
var boxExt = new BoundingBoxExt(mesh.BoundingBox);
boxExt.Transform(world);
var meshBox = (BoundingBox)boxExt;
if (hasBoundingBox)
{
BoundingBox.Merge(ref modelBoundingBox, ref meshBox, out modelBoundingBox);
}
else
{
modelBoundingBox = meshBox;
}
hasBoundingBox = true;
}
// Update the bounds
BoundingBox = modelBoundingBox;
BoundingSphere = modelBoundingSphere;
}
/// <summary>
/// Determines whether a <see cref="BoundingFrustum" /> intersects or contains an AABB determined by its center and extent.
/// Faster variant specific for frustum culling.
/// </summary>
/// <param name="frustum">The frustum.</param>
/// <param name="boundingBoxExt">The bounding box ext.</param>
/// <returns><c>true</c> if XXXX, <c>false</c> otherwise.</returns>
public static bool FrustumContainsBox(ref BoundingFrustum frustum, ref BoundingBoxExt boundingBoxExt)
{
unsafe
{
fixed (Plane* planeStart = &frustum.LeftPlane)
{
var plane = planeStart;
for (int i = 0; i < 6; ++i)
{
// Previous code:
if (Vector3.Dot(boundingBoxExt.Center, plane->Normal)
+ boundingBoxExt.Extent.X * Math.Abs(plane->Normal.X)
+ boundingBoxExt.Extent.Y * Math.Abs(plane->Normal.Y)
+ boundingBoxExt.Extent.Z * Math.Abs(plane->Normal.Z)
<= -plane->D)
return false;
plane++;
}
}
return true;
}
/*
unsafe
{
fixed (Plane* planeStart = &frustum.LeftPlane)
fixed (Vector3* pExtent = &boundingBoxExt.Extent)
{
var plane = planeStart;
for (int i = 0; i < 6; ++i)
{
// Previous code:
//if (Vector3.Dot(boundingBoxExt.Center, plane->Normal)
// + boundingBoxExt.Extent.X * Math.Abs(plane->Normal.X)
// + boundingBoxExt.Extent.Y * Math.Abs(plane->Normal.Y)
// + boundingBoxExt.Extent.Z * Math.Abs(plane->Normal.Z)
// <= -plane->D)
// Optimized version (only 1 dot and cheaper Math.Abs)
// https://fgiesen.wordpress.com/2010/10/17/view-frustum-culling/
// return dot3(center, plane) + dot3(extent, absPlane) <= -plane.w;
// or
// vector4 signFlip = componentwise_and(plane, 0x80000000);
// vector3 centerOffset = xor(extent, signFlip)
// dot3(center + centerOffset, plane) <= -plane.w;
uint val = (((uint*)&plane->Normal)[0] & 0x80000000) ^ ((uint*)pExtent)[0];
var dist = plane->Normal.X * ((*(float*)(&val)) + boundingBoxExt.Center.X);
val = (((uint*)&plane->Normal)[1] & 0x80000000) ^ ((uint*)pExtent)[1];
dist += plane->Normal.Y * ((*(float*)(&val)) + boundingBoxExt.Center.Y);
val = (((uint*)&plane->Normal)[2] & 0x80000000) ^ ((uint*)pExtent)[2];
dist += plane->Normal.Z * ((*(float*)(&val)) + boundingBoxExt.Center.Z);
if (dist <= -plane->D)
return false;
plane++;
}
}
return true;
}
*/
}
/// <summary>
/// Calculate the bounding sphere of the entity's models.
/// </summary>
/// <param name="entity">The entity to measure</param>
/// <param name="isRecursive">Indicate the child entities bounding spheres should be merged</param>
/// <param name="meshSelector">Selects which meshes are considered for bounding box calculation.</param>
/// <returns>The bounding sphere (world matrix included)</returns>
public static BoundingSphere CalculateBoundSphere(this Entity entity, bool isRecursive = true, Func <Model, IEnumerable <Mesh> > meshSelector = null)
{
entity.Transform.UpdateWorldMatrix();
var worldMatrix = entity.Transform.WorldMatrix;
var boundingSphere = BoundingSphere.Empty;
// calculate the bounding sphere of the model if any
var modelComponent = entity.Get <ModelComponent>();
var hasModel = modelComponent?.Model != null;
if (hasModel)
{
var hierarchy = modelComponent.Skeleton;
var nodeTransforms = new Matrix[hierarchy.Nodes.Length];
// Calculate node transforms here, since there might not be a ModelProcessor running
for (int i = 0; i < nodeTransforms.Length; i++)
{
if (hierarchy.Nodes[i].ParentIndex == -1)
{
nodeTransforms[i] = worldMatrix;
}
else
{
Matrix localMatrix;
Matrix.Transformation(
ref hierarchy.Nodes[i].Transform.Scale,
ref hierarchy.Nodes[i].Transform.Rotation,
ref hierarchy.Nodes[i].Transform.Position, out localMatrix);
Matrix.Multiply(ref localMatrix, ref nodeTransforms[hierarchy.Nodes[i].ParentIndex], out nodeTransforms[i]);
}
}
// calculate the bounding sphere
var boundingBox = BoundingBoxExt.Empty;
var meshes = modelComponent.Model.Meshes;
var filteredMeshes = meshSelector == null ? meshes : meshSelector(modelComponent.Model);
// Calculate skinned bounding boxes.
// TODO: Cloned from ModelSkinningUpdater. Consolidate.
foreach (var mesh in filteredMeshes)
{
var skinning = mesh.Skinning;
if (skinning == null)
{
// For unskinned meshes, use the original bounding box
var boundingBoxExt = (BoundingBoxExt)mesh.BoundingBox;
boundingBoxExt.Transform(nodeTransforms[mesh.NodeIndex]);
BoundingBoxExt.Merge(ref boundingBox, ref boundingBoxExt, out boundingBox);
}
else
{
var bones = skinning.Bones;
var bindPoseBoundingBox = new BoundingBoxExt(mesh.BoundingBox);
for (var index = 0; index < bones.Length; index++)
{
var nodeIndex = bones[index].NodeIndex;
Matrix boneMatrix;
// Compute bone matrix
Matrix.Multiply(ref bones[index].LinkToMeshMatrix, ref nodeTransforms[nodeIndex], out boneMatrix);
// Fast AABB transform: http://zeuxcg.org/2010/10/17/aabb-from-obb-with-component-wise-abs/
// Compute transformed AABB (by world)
var boundingBoxExt = bindPoseBoundingBox;
boundingBoxExt.Transform(boneMatrix);
BoundingBoxExt.Merge(ref boundingBox, ref boundingBoxExt, out boundingBox);
}
}
}
var halfSize = boundingBox.Extent;
var maxHalfSize = Math.Max(halfSize.X, Math.Max(halfSize.Y, halfSize.Z));
boundingSphere = BoundingSphere.Merge(boundingSphere, new BoundingSphere(boundingBox.Center, maxHalfSize));
}
// Calculate the bounding sphere for the sprite component if any and merge the result
var spriteComponent = entity.Get <SpriteComponent>();
var hasSprite = spriteComponent?.CurrentSprite != null;
if (hasSprite && !(hasModel && meshSelector != null))
{
var spriteSize = spriteComponent.CurrentSprite.Size;
var spriteDiagonalSize = (float)Math.Sqrt(spriteSize.X * spriteSize.X + spriteSize.Y * spriteSize.Y);
// Note: this is probably wrong, need to unify with SpriteComponentRenderer
var center = worldMatrix.TranslationVector;
var scales = new Vector3(worldMatrix.Row1.Length(), worldMatrix.Row2.Length(), worldMatrix.Row3.Length());
var maxScale = Math.Max(scales.X, Math.Max(scales.Y, scales.Z));
boundingSphere = BoundingSphere.Merge(boundingSphere, new BoundingSphere(center, maxScale * spriteDiagonalSize / 2f));
}
var spriteStudioComponent = entity.Get <SpriteStudioComponent>();
if (spriteStudioComponent != null)
{
// Make sure nodes are prepared
if (!SpriteStudioProcessor.PrepareNodes(spriteStudioComponent))
{
return(new BoundingSphere());
}
// Update root nodes
foreach (var node in spriteStudioComponent.Nodes)
{
node.UpdateTransformation();
}
// Compute bounding sphere for each node
foreach (var node in spriteStudioComponent.Nodes.SelectDeep(x => x.ChildrenNodes))
{
if (node.Sprite == null || node.Hide != 0)
{
continue;
}
var nodeMatrix = node.ModelTransform * worldMatrix;
var spriteSize = node.Sprite.Size;
var spriteDiagonalSize = (float)Math.Sqrt(spriteSize.X * spriteSize.X + spriteSize.Y * spriteSize.Y);
Vector3 pos, scale;
nodeMatrix.Decompose(out scale, out pos);
var center = pos;
var maxScale = Math.Max(scale.X, scale.Y); //2d ignore Z
boundingSphere = BoundingSphere.Merge(boundingSphere, new BoundingSphere(center, maxScale * (spriteDiagonalSize / 2f)));
}
}
var particleComponent = entity.Get <ParticleSystemComponent>();
if (particleComponent != null)
{
var center = worldMatrix.TranslationVector;
var sphere = particleComponent.ParticleSystem?.BoundingShape != null?BoundingSphere.FromBox(particleComponent.ParticleSystem.BoundingShape.GetAABB(center, Quaternion.Identity, 1.0f)) : new BoundingSphere(center, 2.0f);
boundingSphere = BoundingSphere.Merge(boundingSphere, sphere);
}
var boundingBoxComponent = entity.Get <NavigationBoundingBoxComponent>();
if (boundingBoxComponent != null)
{
var center = worldMatrix.TranslationVector;
var scales = new Vector3(worldMatrix.Row1.Length(), worldMatrix.Row2.Length(), worldMatrix.Row3.Length()) * boundingBoxComponent.Size;
boundingSphere = BoundingSphere.FromBox(new BoundingBox(-scales + center, scales + center));
}
// Extend the bounding sphere to include the children
if (isRecursive)
{
foreach (var child in entity.GetChildren())
{
boundingSphere = BoundingSphere.Merge(boundingSphere, child.CalculateBoundSphere(true, meshSelector));
}
}
// If the entity does not contain any components having an impact on the bounding sphere, create an empty bounding sphere centered on the entity position.
if (boundingSphere == BoundingSphere.Empty)
{
boundingSphere = new BoundingSphere(worldMatrix.TranslationVector, 0);
}
return(boundingSphere);
}
public void ApplyDrawParameters(RenderDrawContext context, ParameterCollection parameters, FastListStruct <LightDynamicEntry> currentLights, ref BoundingBoxExt boundingBox)
{
var boundingBoxCasted = (BoundingBox)boundingBox;
int lightIndex = 0;
for (int i = 0; i < currentLights.Count; ++i)
{
var lightEntry = currentLights[i];
var light = lightEntry.Light;
if (light.BoundingBox.Intersects(ref boundingBoxCasted))
{
var spotLight = (LightSpot)light.Type;
/*
* // TODO: Just save the shaderdata struct directly within "LightDynamicEntry"?
* var singleLightData = (LightSpotTextureProjectionShaderData)lightEntry.ShadowMapTexture.ShaderData; // TODO: This must not depend on the shadow map texture!
*
* worldToTextureUV[lightIndex] = singleLightData.WorldToTextureUV;
* projectionTextureMipMapLevels[lightIndex] = singleLightData.ProjectiveTextureMipMapLevel;
* projectiveTexture = singleLightData.ProjectiveTexture;
*/
// TODO: Move this to "Collect()" and use "LightSpotTextureProjectionShaderData", but IDK how!
worldToTextureUV[lightIndex] = ComputeWorldToTextureUVMatrix(light);
projectorPlaneMatrices[lightIndex] = ComputeProjectorPlaneMatrix(light);
// We use the maximum number of mips instead of the actual number,
// so things like video textures behave more consistently when changing the number of mip maps to generate.
int maxMipMapCount = Texture.CountMips(lightParameters.ProjectionTexture.Width, lightParameters.ProjectionTexture.Height);
float projectiveTextureMipMapLevel = (float)(maxMipMapCount - 1) * spotLight.MipMapScale; // "- 1" because the lowest mip level is 0, not 1.
projectionTextureMipMapLevels[lightIndex] = projectiveTextureMipMapLevel;
transitionAreas[lightIndex] = Math.Max(spotLight.TransitionArea, 0.001f); // Keep the value just above zero. This is to prevent some issues with the "smoothstep()" function on OpenGL and OpenGL ES.
++lightIndex;
}
}
// TODO: Why is this set if it's already in the collection?
// TODO: Does this get set once per group or something?
parameters.Set(projectiveTextureKey, lightParameters.ProjectionTexture);
parameters.Set(uvScale, lightParameters.UVScale);
parameters.Set(uvOffset, lightParameters.UVOffset);
parameters.Set(worldToProjectiveTextureUVsKey, worldToTextureUV);
parameters.Set(projectorPlaneMatricesKey, projectorPlaneMatrices);
parameters.Set(projectionTextureMipMapLevelsKey, projectionTextureMipMapLevels);
parameters.Set(transitionAreasKey, transitionAreas);
}
public override void ApplyDrawParameters(FastListStruct <LightDynamicEntry>?lightList, RenderDrawContext context, int viewIndex, ParameterCollection parameters, ref BoundingBoxExt boundingBox)
{
FastListStruct <SpotLightData> lightsData = new FastListStruct <SpotLightData>(8);
if (lightList == null)
{
lightList = new FastListStruct <LightDynamicEntry>(8);
}
FastListStruct <LightDynamicEntry> currentLights = lightList.Value;
var lightRange = lightRanges[viewIndex];
for (int i = lightRange.Start; i < lightRange.End; ++i)
{
currentLights.Add(lights[i]);
}
base.ApplyDrawParameters(currentLights, context, viewIndex, parameters, ref boundingBox);
// TODO: Octree structure to select best lights quicker
var boundingBox2 = (BoundingBox)boundingBox;
for (int i = 0; i < currentLights.Count; i++)
{
var light = currentLights[i].Light;
if (light.BoundingBox.Intersects(ref boundingBox2))
{
var spotLight = (LightSpot)light.Type;
lightsData.Add(new SpotLightData
{
PositionWS = light.Position,
DirectionWS = light.Direction,
AngleOffsetAndInvSquareRadius = new Vector3(spotLight.LightAngleScale, spotLight.LightAngleOffset, spotLight.InvSquareRange),
Color = light.Color,
});
// Did we reach max number of simultaneous lights?
// TODO: Still collect everything but sort by importance and remove the rest?
if (lightsData.Count >= LightCurrentCount)
{
break;
}
}
}
parameters.Set(countKey, lightsData.Count);
parameters.Set(lightsKey, lightsData.Count, ref lightsData.Items[0]);
TextureProjectionShaderGroupData?.ApplyDrawParameters(context, parameters, currentLights, ref boundingBox);
}
private bool DrawBoundingVolumes(RenderDrawContext context, IReadOnlyList <RenderLightShaftBoundingVolume> boundingVolumes, Matrix viewProjection)
{
var commandList = context.CommandList;
bool effectUpdated = minmaxVolumeEffectShader.UpdateEffect(GraphicsDevice);
if (minmaxVolumeEffectShader.Effect == null)
{
return(false);
}
var needEffectUpdate = effectUpdated || previousMinmaxEffectBytecode != minmaxVolumeEffectShader.Effect.Bytecode;
bool visibleMeshes = false;
for (int pass = 0; pass < 2; ++pass)
{
var minmaxPipelineState = minmaxPipelineStates[pass];
bool pipelineDirty = false;
if (needEffectUpdate)
{
// The EffectInstance might have been updated from outside
previousMinmaxEffectBytecode = minmaxVolumeEffectShader.Effect.Bytecode;
minmaxPipelineState.State.RootSignature = minmaxVolumeEffectShader.RootSignature;
minmaxPipelineState.State.EffectBytecode = minmaxVolumeEffectShader.Effect.Bytecode;
minmaxPipelineState.State.Output.RenderTargetCount = 1;
minmaxPipelineState.State.Output.RenderTargetFormat0 = commandList.RenderTarget.Format;
pipelineDirty = true;
}
MeshDraw currentDraw = null;
var frustum = new BoundingFrustum(ref viewProjection);
foreach (var volume in boundingVolumes)
{
if (volume.Model == null)
{
continue;
}
// Update parameters for the minmax shader
Matrix worldViewProjection = Matrix.Multiply(volume.World, viewProjection);
minmaxVolumeEffectShader.Parameters.Set(VolumeMinMaxShaderKeys.WorldViewProjection, worldViewProjection);
foreach (var mesh in volume.Model.Meshes)
{
// Frustum culling
BoundingBox meshBoundingBox;
Matrix world = volume.World;
BoundingBox.Transform(ref mesh.BoundingBox, ref world, out meshBoundingBox);
var boundingBoxExt = new BoundingBoxExt(meshBoundingBox);
if (boundingBoxExt.Extent != Vector3.Zero &&
!VisibilityGroup.FrustumContainsBox(ref frustum, ref boundingBoxExt, true))
{
continue;
}
visibleMeshes = true;
var draw = mesh.Draw;
if (currentDraw != draw)
{
if (minmaxPipelineState.State.PrimitiveType != draw.PrimitiveType)
{
minmaxPipelineState.State.PrimitiveType = draw.PrimitiveType;
pipelineDirty = true;
}
var inputElements = draw.VertexBuffers.CreateInputElements();
if (inputElements.ComputeHash() != minmaxPipelineState.State.InputElements.ComputeHash())
{
minmaxPipelineState.State.InputElements = inputElements;
pipelineDirty = true;
}
// Update mesh
for (int i = 0; i < draw.VertexBuffers.Length; i++)
{
var vertexBuffer = draw.VertexBuffers[i];
commandList.SetVertexBuffer(i, vertexBuffer.Buffer, vertexBuffer.Offset, vertexBuffer.Stride);
}
if (draw.IndexBuffer != null)
{
commandList.SetIndexBuffer(draw.IndexBuffer.Buffer, draw.IndexBuffer.Offset, draw.IndexBuffer.Is32Bit);
}
currentDraw = draw;
}
if (pipelineDirty)
{
minmaxPipelineState.Update();
pipelineDirty = false;
}
context.CommandList.SetPipelineState(minmaxPipelineState.CurrentState);
minmaxVolumeEffectShader.Apply(context.GraphicsContext);
// Draw
if (currentDraw.IndexBuffer == null)
{
commandList.Draw(currentDraw.DrawCount, currentDraw.StartLocation);
}
else
{
commandList.DrawIndexed(currentDraw.DrawCount, currentDraw.StartLocation);
}
}
}
}
return(visibleMeshes);
}
internal void Update(TransformComponent transformComponent, ref Matrix worldMatrix)
{
if (!Enabled || model == null)
return;
// Check if scaling is negative
bool isScalingNegative = false;
{
Vector3 scale, translation;
Matrix rotation;
if (worldMatrix.Decompose(out scale, out rotation, out translation))
isScalingNegative = scale.X*scale.Y*scale.Z < 0.0f;
}
// Make sure skeleton is up to date
CheckSkeleton();
if (skeleton != null)
{
// Update model view hierarchy node matrices
skeleton.NodeTransformations[0].LocalMatrix = worldMatrix;
skeleton.NodeTransformations[0].IsScalingNegative = isScalingNegative;
skeleton.UpdateMatrices();
}
// Update the bounding sphere / bounding box in world space
var meshes = Model.Meshes;
var modelBoundingSphere = BoundingSphere.Empty;
var modelBoundingBox = BoundingBox.Empty;
bool hasBoundingBox = false;
Matrix world;
foreach (var mesh in meshes)
{
var meshBoundingSphere = mesh.BoundingSphere;
if (skeleton != null)
skeleton.GetWorldMatrix(mesh.NodeIndex, out world);
else
world = worldMatrix;
Vector3.TransformCoordinate(ref meshBoundingSphere.Center, ref world, out meshBoundingSphere.Center);
BoundingSphere.Merge(ref modelBoundingSphere, ref meshBoundingSphere, out modelBoundingSphere);
var boxExt = new BoundingBoxExt(mesh.BoundingBox);
boxExt.Transform(world);
var meshBox = (BoundingBox)boxExt;
if (hasBoundingBox)
{
BoundingBox.Merge(ref modelBoundingBox, ref meshBox, out modelBoundingBox);
}
else
{
modelBoundingBox = meshBox;
}
hasBoundingBox = true;
}
// Update the bounds
BoundingBox = modelBoundingBox;
BoundingSphere = modelBoundingSphere;
}
/// <summary>
/// Updates this instance( <see cref="Position"/>, <see cref="Direction"/>, <see cref="HasBoundingBox"/>, <see cref="BoundingBox"/>, <see cref="BoundingBoxExt"/>
/// </summary>
public bool Update()
{
if (Type == null || !Enabled || !Type.Update(this))
{
return false;
}
// Compute light direction and position
Vector3 lightDirection;
var lightDir = DefaultDirection;
Vector3.TransformNormal(ref lightDir, ref Entity.Transform.WorldMatrix, out lightDirection);
lightDirection.Normalize();
Position = Entity.Transform.Position;
Direction = lightDirection;
// Color
var colorLight = Type as IColorLight;
Color = (colorLight != null) ? colorLight.ComputeColor(Intensity) : new Color3();
// Compute bounding boxes
HasBoundingBox = false;
BoundingBox = new BoundingBox();
BoundingBoxExt = new BoundingBoxExt();
var directLight = Type as IDirectLight;
if (directLight != null && directLight.HasBoundingBox)
{
// Computes the bounding boxes
BoundingBox = directLight.ComputeBounds(Position, Direction);
BoundingBoxExt = new BoundingBoxExt(BoundingBox);
}
return true;
}
public void ApplyDrawParameters(RenderDrawContext context, ParameterCollection parameters, FastListStruct<LightDynamicEntry> currentLights, ref BoundingBoxExt boundingBox)
{
}
/// <summary>
/// Applies PerDraw lighting parameters.
/// </summary>
/// <param name="context"></param>
/// <param name="viewIndex"></param>
/// <param name="parameters"></param>
/// <param name="boundingBox"></param>
public virtual void ApplyDrawParameters(RenderDrawContext context, int viewIndex, ParameterCollection parameters, ref BoundingBoxExt boundingBox)
{
}
public void ApplyDrawParameters(RenderDrawContext context, ParameterCollection parameters, FastListStruct<LightDynamicEntry> currentLights, ref BoundingBoxExt boundingBox)
{
var boundingBox2 = (BoundingBox)boundingBox;
bool shadowMapCreated = false;
int lightIndex = 0;
for (int i = 0; i < currentLights.Count; ++i)
{
var lightEntry = currentLights[i];
var light = lightEntry.Light;
if (light.BoundingBox.Intersects(ref boundingBox2))
{
var singleLightData = (LightSpotShadowMapShaderData)lightEntry.ShadowMapTexture.ShaderData;
worldToShadowCascadeUV[lightIndex] = singleLightData.WorldToShadowCascadeUV;
depthBiases[lightIndex] = singleLightData.DepthBias;
offsetScales[lightIndex] = singleLightData.OffsetScale;
lightIndex++;
if (!shadowMapCreated)
{
shadowMapTexture = singleLightData.Texture;
if (shadowMapTexture != null)
{
shadowMapTextureSize = new Vector2(shadowMapTexture.Width, shadowMapTexture.Height);
shadowMapTextureTexelSize = 1.0f / shadowMapTextureSize;
}
shadowMapCreated = true;
}
}
}
parameters.Set(shadowMapTextureKey, shadowMapTexture);
parameters.Set(shadowMapTextureSizeKey, shadowMapTextureSize);
parameters.Set(shadowMapTextureTexelSizeKey, shadowMapTextureTexelSize);
parameters.Set(worldToShadowCascadeUVsKey, worldToShadowCascadeUV);
parameters.Set(depthBiasesKey, depthBiases);
parameters.Set(offsetScalesKey, offsetScales);
}
private static void CalculateMinMaxDistance(RenderView view, ref Plane plane, ref BoundingBoxExt boundingBox)
{
// TODO GRAPHICS REFACTOR: Optimize per-view: Only two corners need checking, depending on view direction. Also, currently unnecessary for shadow views.
var minimum = boundingBox.Minimum;
var maximum = boundingBox.Maximum;
var point = minimum;
var distance = CollisionHelper.DistancePlanePoint(ref plane, ref point);
MinMax(distance, ref view.MinimumDistance, ref view.MaximumDistance);
point.X = maximum.X;
distance = CollisionHelper.DistancePlanePoint(ref plane, ref point);
MinMax(distance, ref view.MinimumDistance, ref view.MaximumDistance);
point.Y = maximum.Y;
distance = CollisionHelper.DistancePlanePoint(ref plane, ref point);
MinMax(distance, ref view.MinimumDistance, ref view.MaximumDistance);
point.X = minimum.X;
distance = CollisionHelper.DistancePlanePoint(ref plane, ref point);
MinMax(distance, ref view.MinimumDistance, ref view.MaximumDistance);
point.Z = maximum.Z;
distance = CollisionHelper.DistancePlanePoint(ref plane, ref point);
MinMax(distance, ref view.MinimumDistance, ref view.MaximumDistance);
point.Y = minimum.Y;
distance = CollisionHelper.DistancePlanePoint(ref plane, ref point);
MinMax(distance, ref view.MinimumDistance, ref view.MaximumDistance);
point.X = maximum.X;
distance = CollisionHelper.DistancePlanePoint(ref plane, ref point);
MinMax(distance, ref view.MinimumDistance, ref view.MaximumDistance);
point.Y = maximum.Y;
distance = CollisionHelper.DistancePlanePoint(ref plane, ref point);
MinMax(distance, ref view.MinimumDistance, ref view.MaximumDistance);
}
public bool Contains(ref BoundingBoxExt boundingBoxExt)
{
return Collision.FrustumContainsBox(ref this, ref boundingBoxExt);
}
public void ApplyDrawParameters(RenderDrawContext context, ParameterCollection parameters, FastListStruct <LightDynamicEntry> currentLights, ref BoundingBoxExt boundingBox)
{
}
private void PrepareModels(RenderContext context, List <RenderModel> renderModels, RenderItemCollection opaqueList, RenderItemCollection transparentList)
{
// If no camera, early exit
var camera = context.GetCurrentCamera();
if (camera == null)
{
return;
}
var viewProjectionMatrix = camera.ViewProjectionMatrix;
var preRenderModel = Callbacks.PreRenderModel;
var sceneCameraRenderer = context.Tags.Get(SceneCameraRenderer.Current);
var cullingMode = sceneCameraRenderer != null ? sceneCameraRenderer.CullingMode : CullingMode.None;
var frustum = new BoundingFrustum(ref viewProjectionMatrix);
var cameraRenderMode = sceneCameraRenderer != null ? sceneCameraRenderer.Mode : null;
foreach (var renderModel in renderModels)
{
// If Model is null, then skip it
if (renderModel.Model == null)
{
continue;
}
if (preRenderModel != null)
{
if (!preRenderModel(context, renderModel))
{
continue;
}
}
// Always prepare the slot for the render meshes even if they are not used.
EnsureRenderMeshes(renderModel);
var meshes = PrepareModelForRendering(context, renderModel);
foreach (var renderMesh in meshes)
{
if (!renderMesh.Enabled)
{
continue;
}
var worldMatrix = renderMesh.WorldMatrix;
// Perform frustum culling
if (cullingMode == CullingMode.Frustum)
{
// Always render meshes with unspecified bounds
// TODO: This should not be necessary. Add proper bounding boxes to gizmos etc.
var boundingBox = renderMesh.Mesh.BoundingBox;
if (boundingBox.Extent != Vector3.Zero)
{
// Fast AABB transform: http://zeuxcg.org/2010/10/17/aabb-from-obb-with-component-wise-abs/
// Compute transformed AABB (by world)
var boundingBoxExt = new BoundingBoxExt(boundingBox);
boundingBoxExt.Transform(worldMatrix);
if (!frustum.Contains(ref boundingBoxExt))
{
continue;
}
}
}
// Project the position
// TODO: This could be done in a SIMD batch, but we need to figure-out how to plugin in with RenderMesh object
var worldPosition = new Vector4(worldMatrix.TranslationVector, 1.0f);
Vector4 projectedPosition;
Vector4.Transform(ref worldPosition, ref viewProjectionMatrix, out projectedPosition);
var projectedZ = projectedPosition.Z / projectedPosition.W;
// TODO: Should this be set somewhere else?
var rasterizerState = cameraRenderMode != null?cameraRenderMode.GetDefaultRasterizerState(renderMesh.RenderModel.IsGeometryInverted) : null;
renderMesh.RasterizerState = RasterizerState ?? rasterizerState;
renderMesh.UpdateMaterial();
var list = renderMesh.HasTransparency ? transparentList : opaqueList;
list.Add(new RenderItem(this, renderMesh, projectedZ));
}
}
}
/// <summary>
/// Applies PerDraw lighting parameters.
/// </summary>
/// <param name="context"></param>
/// <param name="viewIndex"></param>
/// <param name="parameters"></param>
/// <param name="boundingBox"></param>
public virtual void ApplyDrawParameters(RenderDrawContext context, int viewIndex, ParameterCollection parameters, ref BoundingBoxExt boundingBox)
{
}
public override void ApplyDrawParameters(RenderDrawContext context, int viewIndex, ParameterCollection parameters, ref BoundingBoxExt boundingBox)
{
CurrentLights.Clear();
var lightRange = LightRanges[viewIndex];
for (int i = lightRange.Start; i < lightRange.End; ++i)
{
CurrentLights.Add(Lights[i]);
}
base.ApplyDrawParameters(context, viewIndex, parameters, ref boundingBox);
// TODO: Since we cull per object, we could maintain a higher number of allowed light than the shader support (i.e. 4 lights active per object even though the scene has many more of them)
// TODO: Octree structure to select best lights quicker
var boundingBox2 = (BoundingBox)boundingBox;
foreach (var lightEntry in CurrentLights)
{
var light = lightEntry.Light;
if (light.BoundingBox.Intersects(ref boundingBox2))
{
var pointLight = (LightPoint)light.Type;
lightsData.Add(new PointLightData
{
PositionWS = light.Position,
InvSquareRadius = pointLight.InvSquareRadius,
Color = light.Color,
});
// Did we reach max number of simultaneous lights?
// TODO: Still collect everything but sort by importance and remove the rest?
if (lightsData.Count >= LightCurrentCount)
{
break;
}
}
}
parameters.Set(countKey, lightsData.Count);
parameters.Set(lightsKey, lightsData.Count, ref lightsData.Items[0]);
lightsData.Clear();
}
public override void ApplyDrawParameters(RenderDrawContext context, int viewIndex, ParameterCollection parameters, ref BoundingBoxExt boundingBox)
{
CurrentLights.Clear();
var lightRange = LightRanges[viewIndex];
for (int i = lightRange.Start; i < lightRange.End; ++i)
{
CurrentLights.Add(Lights[i]);
}
base.ApplyDrawParameters(context, viewIndex, parameters, ref boundingBox);
// TODO: Octree structure to select best lights quicker
var boundingBox2 = (BoundingBox)boundingBox;
foreach (var lightEntry in CurrentLights)
{
var light = lightEntry.Light;
if (light.BoundingBox.Intersects(ref boundingBox2))
{
var spotLight = (LightSpot)light.Type;
lightsData.Add(new SpotLightData
{
PositionWS = light.Position,
DirectionWS = light.Direction,
AngleOffsetAndInvSquareRadius = new Vector3(spotLight.LightAngleScale, spotLight.LightAngleOffset, spotLight.InvSquareRange),
Color = light.Color,
});
// Did we reach max number of simultaneous lights?
// TODO: Still collect everything but sort by importance and remove the rest?
if (lightsData.Count >= LightCurrentCount)
{
break;
}
}
}
parameters.Set(countKey, lightsData.Count);
parameters.Set(lightsKey, lightsData.Count, ref lightsData.Items[0]);
lightsData.Clear();
}
public void ApplyDrawParameters(RenderDrawContext context, ParameterCollection parameters, FastListStruct<LightDynamicEntry> currentLights, ref BoundingBoxExt boundingBox)
{
for (int lightIndex = 0; lightIndex < currentLights.Count; ++lightIndex)
{
var lightEntry = currentLights[lightIndex];
var singleLightData = (LightSpotShadowMapShaderData)lightEntry.ShadowMapTexture.ShaderData;
worldToShadowCascadeUV[lightIndex] = singleLightData.WorldToShadowCascadeUV;
depthBiases[lightIndex] = singleLightData.DepthBias;
offsetScales[lightIndex] = singleLightData.OffsetScale;
// TODO: should be setup just once at creation time
if (lightIndex == 0)
{
shadowMapTexture = singleLightData.Texture;
if (shadowMapTexture != null)
{
shadowMapTextureSize = new Vector2(shadowMapTexture.Width, shadowMapTexture.Height);
shadowMapTextureTexelSize = 1.0f / shadowMapTextureSize;
}
}
}
parameters.Set(shadowMapTextureKey, shadowMapTexture);
parameters.Set(shadowMapTextureSizeKey, shadowMapTextureSize);
parameters.Set(shadowMapTextureTexelSizeKey, shadowMapTextureTexelSize);
parameters.Set(worldToShadowCascadeUVsKey, worldToShadowCascadeUV);
parameters.Set(depthBiasesKey, depthBiases);
parameters.Set(offsetScalesKey, offsetScales);
}
public override void ApplyDrawParameters(RenderDrawContext context, ParameterCollection parameters, FastListStruct <LightDynamicEntry> currentLights, ref BoundingBoxExt boundingBox)
{
var boundingBox2 = (BoundingBox)boundingBox;
bool shadowMapCreated = false;
int lightIndex = 0;
lock (locker)
{
for (int i = 0; i < currentLights.Count; ++i)
{
var lightEntry = currentLights[i];
if (lightEntry.Light.BoundingBox.Intersects(ref boundingBox2))
{
var shaderData = (ShaderData)lightEntry.ShadowMapTexture.ShaderData;
offsets[lightIndex] = shaderData.Offset;
backfaceOffsets[lightIndex] = shaderData.BackfaceOffset;
faceSizes[lightIndex] = shaderData.FaceSize;
depthParameters[lightIndex] = shaderData.DepthParameters;
depthBiases[lightIndex] = shaderData.DepthBias;
viewMatrices[lightIndex] = shaderData.View;
lightIndex++;
// TODO: should be setup just once at creation time
if (!shadowMapCreated)
{
shadowMapTexture = shaderData.Texture;
if (shadowMapTexture != null)
{
shadowMapTextureSize = new Vector2(shadowMapTexture.Width, shadowMapTexture.Height);
shadowMapTextureTexelSize = 1.0f / shadowMapTextureSize;
}
shadowMapCreated = true;
}
}
}
parameters.Set(shadowMapTextureKey, shadowMapTexture);
parameters.Set(shadowMapTextureSizeKey, shadowMapTextureSize);
parameters.Set(shadowMapTextureTexelSizeKey, shadowMapTextureTexelSize);
parameters.Set(viewKey, viewMatrices);
parameters.Set(offsetsKey, offsets);
parameters.Set(backfaceOffsetsKey, backfaceOffsets);
parameters.Set(faceSizesKey, faceSizes);
parameters.Set(depthParametersKey, depthParameters);
parameters.Set(depthBiasesKey, depthBiases);
}
}
private static void CalculateMinMaxDistance(ref Plane plane, ref BoundingBoxExt boundingBox, ref float minDistance, ref float maxDistance)
{
var nearCorner = boundingBox.Minimum;
var farCorner = boundingBox.Maximum;
if (plane.Normal.X < 0)
Utilities.Swap(ref nearCorner.X, ref farCorner.X);
if (plane.Normal.Y < 0)
Utilities.Swap(ref nearCorner.Y, ref farCorner.Y);
if (plane.Normal.Z < 0)
Utilities.Swap(ref nearCorner.Z, ref farCorner.Z);
float oldDistance;
// Interlocked exchange if lower
var distance = CollisionHelper.DistancePlanePoint(ref plane, ref nearCorner);
while ((oldDistance = minDistance) > distance && Interlocked.CompareExchange(ref minDistance, distance, oldDistance) != oldDistance) { }
// Interlocked exchange if greater
distance = CollisionHelper.DistancePlanePoint(ref plane, ref farCorner);
while ((oldDistance = maxDistance) < distance && Interlocked.CompareExchange(ref maxDistance, distance, oldDistance) != oldDistance) { }
}
