private static void SetReflectionEffectParameters(MeshNode meshNode, PlanarReflectionNode planarReflectionNode)
{
// Loop through the materials of the mesh. The material uses the effect
// GroundReflective/MaterialReflective.fx.
foreach (var materialInstance in meshNode.MaterialInstances)
{
// Get effect binding for the "Material" render pass. (Not the "GBuffer" or other passes.)
var effectBinding = materialInstance["Material"];
// Set reflection texture and size parameters.
var texture = (Texture2D)planarReflectionNode.RenderToTexture.Texture;
effectBinding.Set <Texture>("ReflectionTexture", texture);
effectBinding.Set <Vector2>("ReflectionTextureSize", new Vector2(texture.Width, texture.Height));
// The reflection texture matrix and the reflection normal may change over
// time. Therefore, we need to set a delegate that updates the value once
// per frame.
effectBinding.Set <Matrix>("ReflectionMatrix", (binding, context) => (Matrix)planarReflectionNode.RenderToTexture.TextureMatrix);
effectBinding.Set <Vector3>("ReflectionNormal", (binding, context) => (Vector3)planarReflectionNode.NormalWorld);
}
}
public OceanSample(Microsoft.Xna.Framework.Game game)
: base(game)
{
SampleFramework.IsMouseVisible = false;
_graphicsScreen = new DeferredGraphicsScreen(Services);
_graphicsScreen.DrawReticle = true;
GraphicsService.Screens.Insert(0, _graphicsScreen);
GameObjectService.Objects.Add(new DeferredGraphicsOptionsObject(Services));
Services.Register(typeof(DebugRenderer), null, _graphicsScreen.DebugRenderer);
Services.Register(typeof(IScene), null, _graphicsScreen.Scene);
// Add gravity and damping to the physics Simulation.
Simulation.ForceEffects.Add(new Gravity());
Simulation.ForceEffects.Add(new Damping());
// Add a custom game object which controls the camera.
var cameraGameObject = new CameraObject(Services);
GameObjectService.Objects.Add(cameraGameObject);
_graphicsScreen.ActiveCameraNode = cameraGameObject.CameraNode;
// More standard objects.
GameObjectService.Objects.Add(new GrabObject(Services));
GameObjectService.Objects.Add(new ObjectCreatorObject(Services));
//GameObjectService.Objects.Add(new StaticSkyObject(Services));
var dynamicSkyObject = new DynamicSkyObject(Services, true, false, true);
GameObjectService.Objects.Add(dynamicSkyObject);
// Add an island model.
GameObjectService.Objects.Add(new StaticObject(Services, "Island/Island", new Vector3F(30), new Pose(new Vector3F(0, 0.75f, 0)), true, true));
GameObjectService.Objects.Add(new DynamicObject(Services, 1));
GameObjectService.Objects.Add(new DynamicObject(Services, 2));
GameObjectService.Objects.Add(new DynamicObject(Services, 5));
GameObjectService.Objects.Add(new DynamicObject(Services, 6));
GameObjectService.Objects.Add(new DynamicObject(Services, 7));
GameObjectService.Objects.Add(new FogObject(Services)
{
AttachToCamera = true
});
// The LavaBalls class controls all lava ball instances.
var lavaBalls = new LavaBallsObject(Services);
GameObjectService.Objects.Add(lavaBalls);
// Add a few palm trees.
Random random = new Random(12345);
for (int i = 0; i < 20; i++)
{
Vector3F position = new Vector3F(random.NextFloat(-7, 4), 0, random.NextFloat(13, 18));
Matrix33F orientation = Matrix33F.CreateRotationY(random.NextFloat(0, ConstantsF.TwoPi));
float scale = random.NextFloat(0.8f, 1.2f);
GameObjectService.Objects.Add(new StaticObject(Services, "PalmTree/palm_tree", scale, new Pose(position, orientation)));
}
// Define the appearance of the water.
var waterOcean = new Water
{
SpecularColor = new Vector3F(20f),
SpecularPower = 500,
NormalMap0 = null,
NormalMap1 = null,
RefractionDistortion = 0.1f,
ReflectionColor = new Vector3F(0.2f),
RefractionColor = new Vector3F(0.6f),
// Water is scattered in high waves and this makes the wave crests brighter.
// ScatterColor defines the intensity of this effect.
ScatterColor = new Vector3F(0.05f, 0.1f, 0.1f),
// Foam is automatically rendered where the water intersects geometry and
// where wave are high.
FoamMap = ContentManager.Load <Texture2D>("Water/Foam"),
FoamMapScale = 5,
FoamColor = new Vector3F(1),
FoamCrestMin = 0.3f,
FoamCrestMax = 0.8f,
// Approximate underwater caustics are computed in real-time from the waves.
CausticsSampleCount = 3,
CausticsIntensity = 3,
CausticsPower = 100,
};
// If we do not specify a shape in the WaterNode constructor, we get an infinite
// water plane.
_waterNode = new WaterNode(waterOcean, null)
{
PoseWorld = new Pose(new Vector3F(0, 0.5f, 0)),
SkyboxReflection = _graphicsScreen.Scene.GetDescendants().OfType <SkyboxNode>().First(),
// ExtraHeight must be set to a value greater than the max. wave height.
ExtraHeight = 2,
};
_graphicsScreen.Scene.Children.Add(_waterNode);
// OceanWaves can be set to displace water surface using a displacement map.
// The displacement map is computed by the WaterWaveRenderer (see DeferredGraphicsScreen)
// using FFT and a statistical ocean model.
_waterNode.Waves = new OceanWaves
{
TextureSize = 256,
HeightScale = 0.004f,
Wind = new Vector3F(10, 0, 10),
Directionality = 1,
Choppiness = 1,
TileSize = 20,
// If we enable CPU queries, we can call OceanWaves.GetDisplacement()
// (see Update() method below).
EnableCpuQueries = true,
};
// Optional: Use a planar reflection instead of the skybox reflection.
// We add a PlanarReflectionNode as a child of the WaterNode.
var renderToTexture = new RenderToTexture
{
Texture = new RenderTarget2D(GraphicsService.GraphicsDevice, 512, 512, false, SurfaceFormat.HdrBlendable, DepthFormat.None),
};
var planarReflectionNode = new PlanarReflectionNode(renderToTexture)
{
Shape = _waterNode.Shape,
NormalLocal = new Vector3F(0, 1, 0),
IsEnabled = false,
};
_waterNode.PlanarReflection = planarReflectionNode;
_waterNode.Children = new SceneNodeCollection(1)
{
planarReflectionNode
};
// To let rigid bodies swim, we add a Buoyancy force effect. This force effect
// computes buoyancy of a flat water surface.
Simulation.ForceEffects.Add(new Buoyancy
{
Surface = new Plane(new Vector3F(0, 1, 0), _waterNode.PoseWorld.Position.Y),
Density = 1500,
AngularDrag = 0.3f,
LinearDrag = 3,
});
}
public WaterSample(Microsoft.Xna.Framework.Game game)
: base(game)
{
SampleFramework.IsMouseVisible = false;
_graphicsScreen = new DeferredGraphicsScreen(Services);
_graphicsScreen.DrawReticle = true;
GraphicsService.Screens.Insert(0, _graphicsScreen);
GameObjectService.Objects.Add(new DeferredGraphicsOptionsObject(Services));
Services.Register(typeof(DebugRenderer), null, _graphicsScreen.DebugRenderer);
Services.Register(typeof(IScene), null, _graphicsScreen.Scene);
// Add gravity and damping to the physics Simulation.
Simulation.ForceEffects.Add(new Gravity());
Simulation.ForceEffects.Add(new Damping());
// Add a custom game object which controls the camera.
var cameraGameObject = new CameraObject(Services);
GameObjectService.Objects.Add(cameraGameObject);
_graphicsScreen.ActiveCameraNode = cameraGameObject.CameraNode;
// More standard objects.
GameObjectService.Objects.Add(new GrabObject(Services));
GameObjectService.Objects.Add(new ObjectCreatorObject(Services));
//GameObjectService.Objects.Add(new StaticSkyObject(Services));
var dynamicSkyObject = new DynamicSkyObject(Services, true, false, true);
GameObjectService.Objects.Add(dynamicSkyObject);
// Add a ground plane with some detail to see the water refractions.
Simulation.RigidBodies.Add(new RigidBody(new PlaneShape(new Vector3(0, 1, 0), 0)));
GameObjectService.Objects.Add(new StaticObject(Services, "Gravel/Gravel", 1, new Pose(new Vector3(0, 0.001f, 0))));
GameObjectService.Objects.Add(new DudeObject(Services));
GameObjectService.Objects.Add(new DynamicObject(Services, 1));
GameObjectService.Objects.Add(new DynamicObject(Services, 2));
GameObjectService.Objects.Add(new DynamicObject(Services, 5));
GameObjectService.Objects.Add(new DynamicObject(Services, 6));
GameObjectService.Objects.Add(new DynamicObject(Services, 7));
GameObjectService.Objects.Add(new FogObject(Services)
{
AttachToCamera = true
});
// The LavaBalls class controls all lava ball instances.
var lavaBalls = new LavaBallsObject(Services);
GameObjectService.Objects.Add(lavaBalls);
// Add a few palm trees.
var random = new Random(12345);
for (int i = 0; i < 10; i++)
{
Vector3 position = new Vector3(random.NextFloat(-3, -8), 0, random.NextFloat(0, -5));
Matrix orientation = Matrix.CreateRotationY(random.NextFloat(0, ConstantsF.TwoPi));
float scale = random.NextFloat(0.5f, 1.2f);
GameObjectService.Objects.Add(new StaticObject(Services, "PalmTree/palm_tree", scale, new Pose(position, orientation)));
}
// Define the appearance of the water.
var water = new Water
{
SpecularColor = new Vector3(10f),
// Small water ripples/waves are created using scrolling normal maps.
NormalMap0 = ContentManager.Load <Texture2D>("Water/Wave0"),
NormalMap1 = ContentManager.Load <Texture2D>("Water/Wave1"),
NormalMap0Scale = 1.8f,
NormalMap1Scale = 2.2f,
NormalMap0Velocity = new Vector3(-0.02f, 0, 0.03f),
NormalMap1Velocity = new Vector3(0.02f, 0, -0.03f),
NormalMap0Strength = 0.5f,
NormalMap1Strength = 0.5f,
ReflectionDistortion = 0.2f,
ReflectionColor = new Vector3(0.7f),
RefractionDistortion = 0.05f,
};
// Create a box-shaped body of water.
// We use a TransformedShape containing a BoxShape because the top of the
// water body must be at height 0.
var shape = new TransformedShape(new GeometricObject(
new BoxShape(10, 1, 20),
new Pose(new Vector3(0, -0.5f, 0))));
_waterNode0 = new WaterNode(water, shape)
{
PoseWorld = new Pose(new Vector3(-1, 0.5f, 0), Matrix.CreateRotationY(0.1f)),
SkyboxReflection = _graphicsScreen.Scene.GetDescendants().OfType <SkyboxNode>().First(),
DepthBufferWriteEnable = true,
};
_graphicsScreen.Scene.Children.Add(_waterNode0);
// Optional: Create a WaterFlow to move the water using a flow texture.
_waterFlow0 = new WaterFlow
{
FlowMapSpeed = 0.5f,
FlowMap = GenerateFlowMap(),
CycleDuration = 3f,
NoiseMapStrength = 0.1f,
NoiseMapScale = 0.5f,
};
_waterNode0.Flow = _waterFlow0;
// Optional: Use a planar reflection instead of the skybox reflection.
// We add a PlanarReflectionNode as a child of the WaterNode.
var renderToTexture = new RenderToTexture
{
Texture = new RenderTarget2D(GraphicsService.GraphicsDevice, 512, 512, false, SurfaceFormat.HdrBlendable, DepthFormat.None),
};
var planarReflectionNode = new PlanarReflectionNode(renderToTexture)
{
// Same shape as WaterNode.
Shape = _waterNode0.Shape,
// Reflection plane is horizontal.
NormalLocal = new Vector3(0, 1, 0),
};
_waterNode0.PlanarReflection = planarReflectionNode;
_waterNode0.Children = new SceneNodeCollection(1)
{
planarReflectionNode
};
// Create a short river with an inclined water surface.
// Using a WaterFlow with a SurfaceSlopeSpeed, the water automatically flows
// down the inclined surface.
_waterNode1 = new WaterNode(water, GetSpiralShape())
{
PoseWorld = new Pose(new Vector3(10, 1.5f, 0), Matrix.CreateRotationY(0.1f)),
EnableUnderwaterEffect = false,
SkyboxReflection = _graphicsScreen.Scene.GetDescendants().OfType <SkyboxNode>().First(),
Flow = new WaterFlow
{
SurfaceSlopeSpeed = 0.5f,
CycleDuration = 2f,
NoiseMapStrength = 0.1f,
NoiseMapScale = 1,
}
};
_graphicsScreen.Scene.Children.Add(_waterNode1);
}
public PlanarReflectionSample(Microsoft.Xna.Framework.Game game)
: base(game)
{
SampleFramework.IsMouseVisible = false;
// Create a graphics screen. This screen has to call the PlanarReflectionRenderer
// to handle the PlanarReflectionNodes!
_graphicsScreen = new DeferredGraphicsScreen(Services)
{
DrawReticle = true
};
GraphicsService.Screens.Insert(0, _graphicsScreen);
GameObjectService.Objects.Add(new DeferredGraphicsOptionsObject(Services));
Services.Register(typeof(DebugRenderer), null, _graphicsScreen.DebugRenderer);
Services.Register(typeof(IScene), null, _graphicsScreen.Scene);
// Add gravity and damping to the physics Simulation.
Simulation.ForceEffects.Add(new Gravity());
Simulation.ForceEffects.Add(new Damping());
// Add a custom game object which controls the camera.
var cameraGameObject = new CameraObject(Services);
GameObjectService.Objects.Add(cameraGameObject);
_graphicsScreen.ActiveCameraNode = cameraGameObject.CameraNode;
// More standard objects.
GameObjectService.Objects.Add(new GrabObject(Services));
GameObjectService.Objects.Add(new ObjectCreatorObject(Services));
GameObjectService.Objects.Add(new StaticSkyObject(Services));
GameObjectService.Objects.Add(new GroundObject(Services));
GameObjectService.Objects.Add(new DudeObject(Services));
GameObjectService.Objects.Add(new DynamicObject(Services, 1));
GameObjectService.Objects.Add(new DynamicObject(Services, 2));
GameObjectService.Objects.Add(new DynamicObject(Services, 5));
GameObjectService.Objects.Add(new DynamicObject(Services, 6));
GameObjectService.Objects.Add(new DynamicObject(Services, 7));
GameObjectService.Objects.Add(new FogObject(Services));
GameObjectService.Objects.Add(new LavaBallsObject(Services));
// Add a few palm trees.
Random random = new Random(12345);
for (int i = 0; i < 10; i++)
{
Vector3F position = new Vector3F(random.NextFloat(-3, -8), 0, random.NextFloat(0, -5));
Matrix33F orientation = Matrix33F.CreateRotationY(random.NextFloat(0, ConstantsF.TwoPi));
float scale = random.NextFloat(0.5f, 1.2f);
GameObjectService.Objects.Add(new StaticObject(Services, "PalmTree/palm_tree", scale, new Pose(position, orientation)));
}
#if MONOGAME
// ----- Workaround for missing effect parameter semantics in MonoGame.
// The effect used by the reflecting ground object defines some new effect
// parameters and sets the EffectParameterHint to "PerInstance", e.g.:
// texture ReflectionTexture < string Hint = "PerInstance"; >;
// "PerInstance" means that each mesh instance which uses the effect can
// have an individual parameter value, i.e. if there are two instances
// each instance needs a different ReflectionTexture.
// MonoGame does not yet support effect parameter annotations in shader
// code. But we can add the necessary effect parameter descriptions here:
var effectInterpreter = GraphicsService.EffectInterpreters.OfType <DefaultEffectInterpreter>().First();
if (!effectInterpreter.ParameterDescriptions.ContainsKey("ReflectionTexture"))
{
effectInterpreter.ParameterDescriptions.Add("ReflectionTexture", (parameter, index) => new EffectParameterDescription(parameter, "ReflectionTexture", index, EffectParameterHint.PerInstance));
effectInterpreter.ParameterDescriptions.Add("ReflectionTextureSize", (parameter, index) => new EffectParameterDescription(parameter, "ReflectionTextureSize", index, EffectParameterHint.PerInstance));
effectInterpreter.ParameterDescriptions.Add("ReflectionMatrix", (parameter, index) => new EffectParameterDescription(parameter, "ReflectionMatrix", index, EffectParameterHint.PerInstance));
effectInterpreter.ParameterDescriptions.Add("ReflectionNormal", (parameter, index) => new EffectParameterDescription(parameter, "ReflectionNormal", index, EffectParameterHint.PerInstance));
}
#endif
// Get a ground model which can render a planar reflection. See
// GroundReflective/MaterialReflective.fx.
var groundModel = ContentManager.Load <ModelNode>("GroundReflective/Ground");
// Use the reflective mesh as the ground.
var groundMesh = groundModel.GetSubtree().OfType <MeshNode>().First().Clone();
groundMesh.PoseWorld = new Pose(new Vector3F(0, 0.01f, 0)); // Small y offset to draw above the default ground model from GroundObject.
_graphicsScreen.Scene.Children.Add(groundMesh);
// Use another instance of the mesh as a wall.
var wallMesh = groundMesh.Clone();
wallMesh.ScaleLocal = new Vector3F(0.2f, 1, 0.1f);
wallMesh.PoseWorld = new Pose(new Vector3F(5, 2, -5), Matrix33F.CreateRotationY(-0.7f) * Matrix33F.CreateRotationX(ConstantsF.PiOver2));
_graphicsScreen.Scene.Children.Add(wallMesh);
// Create a PlanarReflectionNode and add it to the children of the first ground mesh.
// The RenderToTexture class defines the render target for the reflection.
var renderToTexture0 = new RenderToTexture
{
Texture = new RenderTarget2D(
GraphicsService.GraphicsDevice,
1024, 1024,
false, // No mipmaps. Mipmaps can reduce reflection quality.
SurfaceFormat.HdrBlendable, DepthFormat.Depth24Stencil8),
};
_planarReflectionNode0 = new PlanarReflectionNode(renderToTexture0)
{
// The reflection is limited to the bounding shape of the ground mesh.
Shape = groundMesh.Shape,
// The normal of the reflection plane.
NormalLocal = new Vector3F(0, 1, 0),
};
groundMesh.Children = new SceneNodeCollection(1)
{
_planarReflectionNode0
};
// Add another PlanarReflectionNode to the wall.
var renderToTexture1 = new RenderToTexture
{
Texture = new RenderTarget2D(
GraphicsService.GraphicsDevice,
1024, 1024, false,
SurfaceFormat.HdrBlendable, DepthFormat.Depth24Stencil8),
};
_planarReflectionNode1 = new PlanarReflectionNode(renderToTexture1)
{
Shape = groundMesh.Shape,
NormalLocal = new Vector3F(0, 1, 0),
};
wallMesh.Children = new SceneNodeCollection(1)
{
_planarReflectionNode1
};
// Now we have to use the texture that contains the reflection.
// We use effect parameter bindings to use the reflection texture in the shader of the meshes.
SetReflectionEffectParameters(groundMesh, _planarReflectionNode0);
SetReflectionEffectParameters(wallMesh, _planarReflectionNode1);
}
