void generateGem(Vector3 position)
{
position.Y = position.Y + 2.0f;
float radiusMax = (DensityFieldSize / 2);
float radiusMin = (DensityFieldSize / 16);
Vector3 cylinderCenter = Vector3.One * DensityFieldSize * 0.5f;
minPos = maxPos = cylinderCenter;
DensityField = new byte[DensityFieldSize * DensityFieldSize * DensityFieldSize];
for (int x = 0; x < DensityFieldSize; x++)
{
for (int y = 1; y < (DensityFieldSize - 1); y++)
{
for (int z = 0; z < DensityFieldSize; z++)
{
Vector3 pos = new Vector3(x, y, z);
float offset = Math.Abs(pos.Y - cylinderCenter.Y);
pos.Y = cylinderCenter.Y;
float radius = MathHelper.Lerp(radiusMax, radiusMin, offset/cylinderCenter.Y);
float density = Math.Max(1.0f - (pos - cylinderCenter).Length() / (radius), 0.0f);
if (density > 0.0f)
{
pos = (pos / DensityFieldSize) * 2.0f - Vector3.One;
minPos = Vector3.Min(pos, minPos);
maxPos = Vector3.Max(pos, maxPos);
}
DensityField[x + (y + z * DensityFieldSize) * DensityFieldSize] = (byte)(density * 255.0f);
}
}
}
gemGeometry = new VoxelGeometry();
gemGeometry.renderElement.Transform = new Matrix[1] { Matrix.CreateScale(5.0f) * Matrix.CreateTranslation(position) };
gemGeometry.GenerateGeometry(ref DensityField, IsoValue, DensityFieldSize, DensityFieldSize, DensityFieldSize, DensityFieldSize - 1, DensityFieldSize - 1, DensityFieldSize - 1, 0, 0, 0, 2.0f / (float)(DensityFieldSize - 1));
boundingBox = new BoundingBox();
boundingBox.Max = Vector3.Transform(maxPos, gemGeometry.renderElement.Transform[0]);
boundingBox.Min = Vector3.Transform(minPos, gemGeometry.renderElement.Transform[0]);
collected = false;
Vector3 lightPosition = position;
lightPosition.X = position.X + 12.0f;
emitterLight = new Light(LightType.Point, new Vector3(0.83f, 0.06f, 0.36f), lightPosition, false);
emitterLight.Parameters = new Vector4(70, 45, 0, 0);
}
void GenerateGeometry()
{
byte[] DensityField;
int DensityFieldSize = 17;
byte IsoValue = 127;
float radiusMax = (DensityFieldSize / 2);
float radiusMin = (DensityFieldSize / 16);
Vector3 cylinderCenter = Vector3.One * DensityFieldSize * 0.5f;
Vector3 minPos, maxPos;
minPos = maxPos = cylinderCenter;
DensityField = new byte[DensityFieldSize * DensityFieldSize * DensityFieldSize];
for (int x = 0; x < DensityFieldSize; x++)
{
for (int y = 1; y < (DensityFieldSize - 1); y++)
{
for (int z = 0; z < DensityFieldSize; z++)
{
Vector3 pos = new Vector3(x, y, z);
float offset = Math.Abs(pos.Y - cylinderCenter.Y);
pos.Y = cylinderCenter.Y;
float radius = MathHelper.Lerp(radiusMax, radiusMin, offset / cylinderCenter.Y);
float density = Math.Max(1.0f - (pos - cylinderCenter).Length() / (radius), 0.0f);
if (density > 0.0f)
{
pos = (pos / DensityFieldSize) * 2.0f - Vector3.One;
minPos = Vector3.Min(pos, minPos);
maxPos = Vector3.Max(pos, maxPos);
}
DensityField[x + (y + z * DensityFieldSize) * DensityFieldSize] = (byte)(density * 255.0f);
}
}
}
Geometry = new VoxelGeometry();
Vector3 ratio = Vector3.One * 2.0f / (float)(DensityFieldSize - 1);
Geometry.GenerateGeometry(ref DensityField, IsoValue, DensityFieldSize, DensityFieldSize, DensityFieldSize, DensityFieldSize - 1, DensityFieldSize - 1, DensityFieldSize - 1, 0, 0, 0, ratio, Matrix.Identity);
}
void GenerateGeometry()
{
byte[] DensityField;
int DensityFieldSize = 17;
byte IsoValue = 127;
DensityField = new byte[DensityFieldSize * DensityFieldSize * DensityFieldSize];
Vector3 center = Vector3.One * DensityFieldSize * 0.5f;
Vector3 minPos = center;
Vector3 maxPos = center;
float radius = DensityFieldSize / 2;
for (int x = 0; x < DensityFieldSize; x++)
{
for (int y = 1; y < (DensityFieldSize - 1); y++)
{
for (int z = 0; z < DensityFieldSize; z++)
{
Vector3 pos = new Vector3(x, y, z);
float density = MathHelper.Clamp(1.0f-(pos-center).Length()/radius, 0, 1);
if (density > 0.0f)
{
pos = (pos / DensityFieldSize) * 2.0f - Vector3.One;
minPos = Vector3.Min(pos, minPos);
maxPos = Vector3.Max(pos, maxPos);
}
DensityField[x + (y + z * DensityFieldSize) * DensityFieldSize] = (byte)(density * 255.0f);
}
}
}
Geometry = new VoxelGeometry();
Vector3 ratio = 2.0f * Vector3.One / (float)(DensityFieldSize - 1);
Geometry.GenerateGeometry(ref DensityField, IsoValue, DensityFieldSize, DensityFieldSize, DensityFieldSize, DensityFieldSize - 1, DensityFieldSize - 1, DensityFieldSize - 1, 0, 0, 0, ratio, Matrix.Identity);
}
void GenerateGeometry()
{
byte[] DensityField;
int DensityFieldSize = 17;
byte IsoValue = 127;
DensityField = new byte[DensityFieldSize * DensityFieldSize * DensityFieldSize];
Vector3 center = Vector3.One * DensityFieldSize * 0.5f;
Vector3 minPos = center;
Vector3 maxPos = center;
float radiusInner = DensityFieldSize / 6;
float numSpikes = 5;
float period = MathHelper.TwoPi * numSpikes;
float minRad = DensityFieldSize / 4;
float maxRad = DensityFieldSize / 3;
for (int x = 0; x < DensityFieldSize; x++)
{
for (int y = 1; y < (DensityFieldSize - 1); y++)
{
for (int z = 0; z < DensityFieldSize; z++)
{
Vector3 pos = new Vector3(x, y, z);
float innerRingTerm = (1.0f - new Vector2(pos.X-center.X, pos.Y-center.Y).Length() / radiusInner);
float innerRing = (innerRingTerm > 0.0f) ? 1 : 0;
float zElem = Math.Abs((z - center.Z) / center.Z);
float sinTerm = (float)Math.Sin(period * zElem);
float cosTerm = (float)Math.Cos(period * zElem);
float radiusOuter = minRad;
if (cosTerm <= 0.0f)
{
radiusOuter = MathHelper.Lerp(minRad, maxRad, 1.0f + cosTerm);
}
float outerRingTerm = (1.0f - new Vector2(pos.X - center.X, pos.Y - center.Y).Length() / radiusOuter);
float density = MathHelper.Clamp(outerRingTerm-innerRing, 0, 1);
if (density > 0.0f)
{
pos = (pos / DensityFieldSize) * 2.0f - Vector3.One;
minPos = Vector3.Min(pos, minPos);
maxPos = Vector3.Max(pos, maxPos);
}
DensityField[x + (y + z * DensityFieldSize) * DensityFieldSize] = (byte)(density * 255.0f);
}
}
}
gateGeometry = new VoxelGeometry();
gateGeometry.renderElement.Transform = new Matrix[1] { this.Transformation.GetTransform() };
gateGeometry.GenerateGeometry(ref DensityField, IsoValue, DensityFieldSize, DensityFieldSize, DensityFieldSize, DensityFieldSize - 1, DensityFieldSize - 1, DensityFieldSize - 1, 0, 0, 0, 2.0f / (float)(DensityFieldSize - 1));
bounds = new BoundingBox();
bounds.Max = Vector3.Transform(maxPos, this.Transformation.GetTransform());
bounds.Min = Vector3.Transform(minPos, this.Transformation.GetTransform());
}