/// <summary>
/// Adds bigger spheres with different diffuse and specular properties.
/// </summary>
private void AddTestSpheres()
{
const int NumX = 5;
const int NumZ = 11;
for (int x = 0; x < NumX; x++)
{
var mesh = SampleHelper.CreateMesh(
ContentManager,
GraphicsService,
new SphereShape(0.2f),
new Vector3F(1 - (float)x / (NumX - 1)), // Diffuse goes from 1 to 0.
new Vector3F((float)x / (NumX - 1)), // Specular goes from 0 to 1.
(float)Math.Pow(10, x)); // Specular power
for (int z = 0; z < NumZ; z++)
{
_graphicsScreen.Scene.Children.Add(
new MeshNode(mesh)
{
PoseWorld = _globalRotation * new Pose(new Vector3F(x - 2, 1.5f, 3 - z))
});
}
}
}
/// <summary>
/// Adds small reflective spheres at the IBL positions to visualize the environment maps.
/// </summary>
private void AddLightProbes()
{
// Create sphere mesh with high specular exponent.
var mesh = SampleHelper.CreateMesh(
ContentManager,
GraphicsService,
new SphereShape(0.1f),
new Vector3F(0, 0, 0),
new Vector3F(1, 1, 1),
1000000.0f);
// Add a sphere under each image-based light node.
for (int i = 0; i < _lightNodes.Length; i++)
{
_lightNodes[i].Children = new SceneNodeCollection(1);
_lightNodes[i].Children.Add(new MeshNode(mesh));
}
}
// Creates a test scene with a lot of randomly placed objects.
internal static void CreateScene(ServiceContainer services, ContentManager content, DeferredGraphicsScreen graphicsScreen)
{
var gameObjectService = services.GetInstance <IGameObjectService>();
var graphicsService = services.GetInstance <IGraphicsService>();
gameObjectService.Objects.Add(new DynamicSkyObject(services, true, false, true)
{
EnableAmbientLight = false, // Disable ambient light of sky to make shadows more visible.
EnableCloudShadows = false
});
gameObjectService.Objects.Add(new GroundObject(services));
gameObjectService.Objects.Add(new DynamicObject(services, 1));
gameObjectService.Objects.Add(new DynamicObject(services, 2));
gameObjectService.Objects.Add(new DynamicObject(services, 3));
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 ObjectCreatorObject(services));
gameObjectService.Objects.Add(new LavaBallsObject(services));
var random = new Random();
// Spheres
var sphereMesh = SampleHelper.CreateMesh(content, graphicsService, new SphereShape(1));
for (int i = 0; i < 100; i++)
{
Vector3 position = new Vector3(random.NextFloat(-100, 100), random.NextFloat(0, 3), random.NextFloat(-100, 100));
float scale = random.NextFloat(0.5f, 3f);
var meshNode = new MeshNode(sphereMesh)
{
PoseLocal = new Pose(position),
ScaleLocal = new Vector3(scale),
IsStatic = true,
};
graphicsScreen.Scene.Children.Add(meshNode);
}
// Boxes
var boxMesh = SampleHelper.CreateMesh(content, graphicsService, new BoxShape(1, 1, 1));
for (int i = 0; i < 100; i++)
{
Vector3 position = new Vector3(random.NextFloat(-100, 100), random.NextFloat(0, 3), random.NextFloat(-100, 100));
Quaternion orientation = random.NextQuaternion();
Vector3 scale = random.NextVector3(0.1f, 4f);
var meshNode = new MeshNode(boxMesh)
{
PoseLocal = new Pose(position, orientation),
ScaleLocal = scale,
IsStatic = true,
};
graphicsScreen.Scene.Children.Add(meshNode);
}
// Height field with smooth hills.
var numberOfSamplesX = 20;
var numberOfSamplesZ = 20;
var samples = new float[numberOfSamplesX * numberOfSamplesZ];
for (int z = 0; z < numberOfSamplesZ; z++)
{
for (int x = 0; x < numberOfSamplesX; x++)
{
if (x == 0 || z == 0 || x == 19 || z == 19)
{
// Set this boundary elements to a low height, so that the height field is connected
// to the ground.
samples[z * numberOfSamplesX + x] = -1;
}
else
{
// A sine/cosine function that creates some interesting waves.
samples[z * numberOfSamplesX + x] = 1 + (float)(Math.Cos(z / 2f) * Math.Sin(x / 2f) * 1);
}
}
}
var heightField = new HeightField(0, 0, 20, 20, samples, numberOfSamplesX, numberOfSamplesZ);
var heightFieldMesh = SampleHelper.CreateMesh(content, graphicsService, heightField);
var heightFieldMeshNode = new MeshNode(heightFieldMesh)
{
PoseLocal = new Pose(new Vector3(20, 0, -20)),
ScaleLocal = new Vector3(1, 2, 1),
IsStatic = true,
};
graphicsScreen.Scene.Children.Add(heightFieldMeshNode);
// Dudes.
for (int i = 0; i < 10; i++)
{
Vector3 position = new Vector3(random.NextFloat(-20, 20), 0, random.NextFloat(-20, 20));
Matrix orientation = Matrix.CreateRotationY(random.NextFloat(0, ConstantsF.TwoPi));
gameObjectService.Objects.Add(new DudeObject(services)
{
Pose = new Pose(position, orientation)
});
}
// Palm trees.
for (int i = 0; i < 100; i++)
{
Vector3 position = new Vector3(random.NextFloat(-80, 80), 0, random.NextFloat(-100, 100));
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)));
}
// Rocks
for (int i = 0; i < 100; i++)
{
Vector3 position = new Vector3(random.NextFloat(-80, 80), 1, random.NextFloat(-100, 100));
Quaternion orientation = RandomHelper.Random.NextQuaternion();
float scale = random.NextFloat(0.5f, 1.2f);
gameObjectService.Objects.Add(new StaticObject(services, "Rock/rock_05", scale, new Pose(position, orientation)));
}
// Grass
for (int i = 0; i < 100; i++)
{
Vector3 position = new Vector3(random.NextFloat(-20, 20), 0, random.NextFloat(-20, 20));
Matrix orientation = Matrix.CreateRotationY(random.NextFloat(0, ConstantsF.TwoPi));
float scale = random.NextFloat(0.5f, 1.2f);
gameObjectService.Objects.Add(new StaticObject(services, "Grass/Grass", scale, new Pose(position, orientation)));
}
// More plants
for (int i = 0; i < 100; i++)
{
Vector3 position = new Vector3(random.NextFloat(-20, 20), 0, random.NextFloat(-20, 20));
Matrix orientation = Matrix.CreateRotationY(random.NextFloat(0, ConstantsF.TwoPi));
float scale = random.NextFloat(0.5f, 1.2f);
gameObjectService.Objects.Add(new StaticObject(services, "Parviflora/Parviflora", scale, new Pose(position, orientation)));
}
// "Skyscrapers"
for (int i = 0; i < 20; i++)
{
Vector3 position = new Vector3(random.NextFloat(90, 100), 0, random.NextFloat(-100, 100));
Matrix orientation = Matrix.CreateRotationY(random.NextFloat(0, ConstantsF.TwoPi));
Vector3 scale = new Vector3(random.NextFloat(6, 20), random.NextFloat(10, 100), random.NextFloat(6, 20));
var meshNode = new MeshNode(boxMesh)
{
PoseLocal = new Pose(position, orientation),
ScaleLocal = scale,
IsStatic = true,
UserFlags = 1, // Mark the distant huge objects. Used in render callbacks in the CompositeShadowSample.
};
graphicsScreen.Scene.Children.Add(meshNode);
}
// "Hills"
for (int i = 0; i < 20; i++)
{
Vector3 position = new Vector3(random.NextFloat(-90, -100), 0, random.NextFloat(-100, 100));
Vector3 scale = new Vector3(random.NextFloat(10, 20), random.NextFloat(10, 30), random.NextFloat(10, 20));
var meshNode = new MeshNode(sphereMesh)
{
PoseLocal = new Pose(position),
ScaleLocal = scale,
IsStatic = true,
UserFlags = 1, // Mark the distant huge objects. Used in render callbacks in the CompositeShadowSample.
};
graphicsScreen.Scene.Children.Add(meshNode);
}
}