// Update position, check collisions, etc. and draw if particle still lives.
// Return false if particle dies/timeouts in this tick.
public bool Draw(VRageRender.MyBillboard billboard)
{
if (Pivot != null)
{
if (PivotRotation != null)
{
Matrix pivotRotationTransform =
Matrix.CreateRotationX(MathHelper.ToRadians(m_actualPivotRotation.X) * VRage.Game.MyEngineConstants.UPDATE_STEP_SIZE_IN_SECONDS) *
Matrix.CreateRotationY(MathHelper.ToRadians(m_actualPivotRotation.Y) * VRage.Game.MyEngineConstants.UPDATE_STEP_SIZE_IN_SECONDS) *
Matrix.CreateRotationZ(MathHelper.ToRadians(m_actualPivotRotation.Z) * VRage.Game.MyEngineConstants.UPDATE_STEP_SIZE_IN_SECONDS);
m_actualPivot = Vector3.TransformNormal(m_actualPivot, pivotRotationTransform);
}
m_actualPivot = Vector3D.TransformNormal(m_actualPivot, m_generation.GetEffect().WorldMatrix);
}
var actualPosition = m_actualPosition + m_actualPivot;
MyTransparentGeometry.StartParticleProfilingBlock("Distance calculation");
// This time is scaled according to planned lifespan of the particle
// Distance for sorting
billboard.DistanceSquared = (float)Vector3D.DistanceSquared(MyTransparentGeometry.Camera.Translation, actualPosition);
MyTransparentGeometry.EndParticleProfilingBlock();
// If distance to camera is really small don't draw it.
if (billboard.DistanceSquared <= 0.1f)
{
return(false);
}
MyTransparentGeometry.StartParticleProfilingBlock("Quad calculation");
MyTransparentGeometry.StartParticleProfilingBlock("actualRadius");
float actualRadius = 1;
Radius.GetInterpolatedValue <float>(m_normalizedTime, out actualRadius);
MyTransparentGeometry.EndParticleProfilingBlock();
float actualAlphaCutout = 0;
if (AlphaCutout != null)
{
MyTransparentGeometry.StartParticleProfilingBlock("AlphaCutout calculation");
AlphaCutout.GetInterpolatedValue <float>(m_normalizedTime, out actualAlphaCutout);
MyTransparentGeometry.EndParticleProfilingBlock();
}
billboard.ContainedBillboards.Clear();
billboard.Near = m_generation.GetEffect().Near;
billboard.Lowres = m_generation.GetEffect().LowRes || VRageRender.MyRenderConstants.RenderQualityProfile.LowResParticles;
billboard.CustomViewProjection = -1;
billboard.ParentID = -1;
billboard.AlphaCutout = actualAlphaCutout;
billboard.UVOffset = Vector2.Zero;
billboard.UVSize = Vector2.One;
float alpha = 1;
Matrix transform = Matrix.Identity;
Vector3 normal = Vector3.Forward;
Vector3 actualVelocity = (Vector3)(m_actualPosition - m_previousPosition);
float radiusBySpeed = m_generation.RadiusBySpeed;
if (radiusBySpeed > 0)
{
float actualSpeed = actualVelocity.Length();
actualRadius = Math.Max(actualRadius, actualRadius * m_generation.RadiusBySpeed * actualSpeed);
}
if (Type == MyParticleTypeEnum.Point)
{
MyTransparentGeometry.StartParticleProfilingBlock("GetBillboardQuadRotated");
Vector2 actualRadiusV2 = new Vector2(actualRadius, actualRadius);
if (Thickness > 0)
{
actualRadiusV2.Y = Thickness;
}
if (m_generation.RotationReference == MyRotationReference.Camera)
{
transform =
Matrix.CreateFromAxisAngle(MyTransparentGeometry.Camera.Right, m_actualAngle.X) *
Matrix.CreateFromAxisAngle(MyTransparentGeometry.Camera.Up, m_actualAngle.Y) *
Matrix.CreateFromAxisAngle(MyTransparentGeometry.Camera.Forward, m_actualAngle.Z);
GetBillboardQuadRotated(billboard, ref actualPosition, actualRadiusV2, ref transform, MyTransparentGeometry.Camera.Left, MyTransparentGeometry.Camera.Up);
}
else if (m_generation.RotationReference == MyRotationReference.Local)
{
transform = Matrix.CreateFromAxisAngle(m_generation.GetEffect().WorldMatrix.Right, m_actualAngle.X) *
Matrix.CreateFromAxisAngle(m_generation.GetEffect().WorldMatrix.Up, m_actualAngle.Y) *
Matrix.CreateFromAxisAngle(m_generation.GetEffect().WorldMatrix.Forward, m_actualAngle.Z);
GetBillboardQuadRotated(billboard, ref actualPosition, actualRadiusV2, ref transform, m_generation.GetEffect().WorldMatrix.Left, m_generation.GetEffect().WorldMatrix.Up);
}
else if (m_generation.RotationReference == MyRotationReference.Velocity)
{
if (actualVelocity.LengthSquared() < 0.00001f)
{
return(false);
}
Matrix velocityRef = Matrix.CreateFromDir(Vector3.Normalize(actualVelocity));
transform = Matrix.CreateFromAxisAngle(velocityRef.Right, m_actualAngle.X) *
Matrix.CreateFromAxisAngle(velocityRef.Up, m_actualAngle.Y) *
Matrix.CreateFromAxisAngle(velocityRef.Forward, m_actualAngle.Z);
GetBillboardQuadRotated(billboard, ref actualPosition, actualRadiusV2, ref transform, velocityRef.Left, velocityRef.Up);
}
else if (m_generation.RotationReference == MyRotationReference.VelocityAndCamera)
{
if (actualVelocity.LengthSquared() < 0.0001f)
{
return(false);
}
Vector3 cameraToPoint = Vector3.Normalize(m_actualPosition - MyTransparentGeometry.Camera.Translation);
Vector3 velocityDir = Vector3.Normalize(actualVelocity);
Vector3 sideVector = Vector3.Cross(cameraToPoint, velocityDir);
Vector3 upVector = Vector3.Cross(sideVector, velocityDir);
Matrix velocityRef = Matrix.CreateWorld(m_actualPosition, velocityDir, upVector);
transform = Matrix.CreateFromAxisAngle(velocityRef.Right, m_actualAngle.X) *
Matrix.CreateFromAxisAngle(velocityRef.Up, m_actualAngle.Y) *
Matrix.CreateFromAxisAngle(velocityRef.Forward, m_actualAngle.Z);
GetBillboardQuadRotated(billboard, ref actualPosition, actualRadiusV2, ref transform, velocityRef.Left, velocityRef.Up);
}
else if (m_generation.RotationReference == MyRotationReference.LocalAndCamera)
{
Vector3 cameraToPoint = Vector3.Normalize(m_actualPosition - MyTransparentGeometry.Camera.Translation);
Vector3 localDir = m_generation.GetEffect().WorldMatrix.Forward;
Vector3 sideVector = Vector3.Cross(cameraToPoint, localDir);
Vector3 upVector = Vector3.Cross(sideVector, localDir);
Matrix velocityRef = Matrix.CreateWorld(m_actualPosition, localDir, upVector);
transform = Matrix.CreateFromAxisAngle(velocityRef.Right, m_actualAngle.X) *
Matrix.CreateFromAxisAngle(velocityRef.Up, m_actualAngle.Y) *
Matrix.CreateFromAxisAngle(velocityRef.Forward, m_actualAngle.Z);
GetBillboardQuadRotated(billboard, ref actualPosition, actualRadiusV2, ref transform, velocityRef.Left, velocityRef.Up);
}
else
{
System.Diagnostics.Debug.Fail("Unknown RotationReference enum");
}
MyTransparentGeometry.EndParticleProfilingBlock();
}
else if (Type == MyParticleTypeEnum.Line)
{
if (MyUtils.IsZero(Velocity.LengthSquared()))
{
Velocity = MyUtils.GetRandomVector3Normalized();
}
MyQuadD quad = new MyQuadD();
MyPolyLineD polyLine = new MyPolyLineD();
//polyLine.LineDirectionNormalized = MyUtils.Normalize(Velocity);
if (actualVelocity.LengthSquared() > 0)
{
polyLine.LineDirectionNormalized = MyUtils.Normalize(actualVelocity);
}
else
{
polyLine.LineDirectionNormalized = MyUtils.Normalize(Velocity);
}
if (m_actualAngle.Z != 0)
{
polyLine.LineDirectionNormalized = Vector3.TransformNormal(polyLine.LineDirectionNormalized, Matrix.CreateRotationY(m_actualAngle.Z));
}
polyLine.Point0 = actualPosition;
polyLine.Point1.X = actualPosition.X - polyLine.LineDirectionNormalized.X * actualRadius;
polyLine.Point1.Y = actualPosition.Y - polyLine.LineDirectionNormalized.Y * actualRadius;
polyLine.Point1.Z = actualPosition.Z - polyLine.LineDirectionNormalized.Z * actualRadius;
if (m_actualAngle.LengthSquared() > 0)
{ //centerize
polyLine.Point0.X = polyLine.Point0.X - polyLine.LineDirectionNormalized.X * actualRadius * 0.5f;
polyLine.Point0.Y = polyLine.Point0.Y - polyLine.LineDirectionNormalized.Y * actualRadius * 0.5f;
polyLine.Point0.Z = polyLine.Point0.Z - polyLine.LineDirectionNormalized.Z * actualRadius * 0.5f;
polyLine.Point1.X = polyLine.Point1.X - polyLine.LineDirectionNormalized.X * actualRadius * 0.5f;
polyLine.Point1.Y = polyLine.Point1.Y - polyLine.LineDirectionNormalized.Y * actualRadius * 0.5f;
polyLine.Point1.Z = polyLine.Point1.Z - polyLine.LineDirectionNormalized.Z * actualRadius * 0.5f;
}
polyLine.Thickness = Thickness;
var camPos = MyTransparentGeometry.Camera.Translation;
MyUtils.GetPolyLineQuad(out quad, ref polyLine, camPos);
transform.Forward = polyLine.LineDirectionNormalized;
billboard.Position0 = quad.Point0;
billboard.Position1 = quad.Point1;
billboard.Position2 = quad.Point2;
billboard.Position3 = quad.Point3;
}
else if (Type == MyParticleTypeEnum.Trail)
{
if (Quad.Point0 == Quad.Point2) //not moving particle
{
return(false);
}
if (Quad.Point1 == Quad.Point3) //not moving particle was previous one
{
return(false);
}
if (Quad.Point0 == Quad.Point3) //not moving particle was previous one
{
return(false);
}
billboard.Position0 = Quad.Point0;
billboard.Position1 = Quad.Point1;
billboard.Position2 = Quad.Point2;
billboard.Position3 = Quad.Point3;
}
else
{
throw new NotSupportedException(Type + " is not supported particle type");
}
if (this.m_generation.AlphaAnisotropic)
{
normal = Vector3.Normalize(Vector3.Cross(billboard.Position0 - billboard.Position1, billboard.Position0 - billboard.Position2));
Vector3 forward = (billboard.Position0 + billboard.Position1 + billboard.Position2 + billboard.Position3) / 4 - MyTransparentGeometry.Camera.Translation;
//Vector3 forward = MyTransparentGeometry.Camera.Forward;
float angle = Math.Abs(Vector3.Dot(MyUtils.Normalize(forward), normal));
float alphaCone = 1 - (float)Math.Pow(1 - angle, 4);
alpha = alphaCone;
}
MyTransparentGeometry.EndParticleProfilingBlock();
MyTransparentGeometry.StartParticleProfilingBlock("Material calculation");
Vector4 color = Vector4.One;
if (Color.GetKeysCount() > 0)
{
Color.GetInterpolatedValue <Vector4>(m_normalizedTime, out color);
}
if (m_arrayIndex != -1)
{
Vector3 arraySize = m_generation.ArraySize;
if (arraySize.X > 0 && arraySize.Y > 0)
{
int arrayOffset = m_generation.ArrayOffset;
int arrayModulo = m_generation.ArrayModulo == 0 ? (int)arraySize.X * (int)arraySize.Y : m_generation.ArrayModulo;
m_arrayIndex = m_arrayIndex % arrayModulo + arrayOffset;
float xDiv = 1.0f / arraySize.X;
float yDiv = 1.0f / arraySize.Y;
int xIndex = m_arrayIndex % (int)arraySize.X;
int yIndex = m_arrayIndex / (int)arraySize.X;
billboard.UVOffset = new Vector2(xDiv * xIndex, yDiv * yIndex);
billboard.UVSize = new Vector2(xDiv, yDiv);
}
}
var material1 = MyTransparentMaterials.GetMaterial("ErrorMaterial");
var material2 = MyTransparentMaterials.GetMaterial("ErrorMaterial");
float textureBlendRatio = 0;
if ((Flags & ParticleFlags.BlendTextures) != 0)
{
float prevTime, nextTime, difference;
Material.GetPreviousValue(m_normalizedTime, out material1, out prevTime);
Material.GetNextValue(m_normalizedTime, out material2, out nextTime, out difference);
if (prevTime != nextTime)
{
textureBlendRatio = (m_normalizedTime - prevTime) * difference;
}
}
else
{
Material.GetInterpolatedValue(m_normalizedTime, out material1);
}
MyTransparentGeometry.EndParticleProfilingBlock();
//This gets 0.44ms for 2000 particles
MyTransparentGeometry.StartParticleProfilingBlock("billboard.Start");
if (material1 != null)
{
billboard.Material = material1.Name;
}
billboard.BlendMaterial = material2.Name;
billboard.BlendTextureRatio = textureBlendRatio;
billboard.EnableColorize = false;
billboard.Color = color * alpha * m_generation.GetEffect().UserColorMultiplier;
billboard.ColorIntensity = ColorIntensity;
MyTransparentGeometry.EndParticleProfilingBlock();
return(true);
}
// Update position, check collisions, etc. and draw if particle still lives.
// Return false if particle dies/timeouts in this tick.
public bool Draw(VRageRender.MyBillboard billboard)
{
MyTransparentGeometry.StartParticleProfilingBlock("Distance calculation");
// This time is scaled according to planned lifespan of the particle
// Distance for sorting
billboard.DistanceSquared = (float)Vector3D.DistanceSquared(MyTransparentGeometry.Camera.Translation, m_actualPosition);
MyTransparentGeometry.EndParticleProfilingBlock();
// If distance to camera is really small don't draw it.
if (billboard.DistanceSquared <= 0.1f)
{
return(false);
}
MyTransparentGeometry.StartParticleProfilingBlock("Quad calculation");
MyTransparentGeometry.StartParticleProfilingBlock("actualRadius");
float actualRadius = 1;
Radius.GetInterpolatedValue <float>(m_normalizedTime, out actualRadius);
MyTransparentGeometry.EndParticleProfilingBlock();
billboard.ContainedBillboards.Clear();
billboard.Near = m_generation.GetEffect().Near;
billboard.Lowres = m_generation.GetEffect().LowRes || VRageRender.MyRenderConstants.RenderQualityProfile.LowResParticles;
billboard.CustomViewProjection = -1;
billboard.ParentID = -1;
float alpha = 1;
if (Type == MyParticleTypeEnum.Point)
{
MyTransparentGeometry.StartParticleProfilingBlock("GetBillboardQuadRotated");
GetBillboardQuadRotated(billboard, ref m_actualPosition, actualRadius, m_actualAngle);
MyTransparentGeometry.EndParticleProfilingBlock();
}
else if (Type == MyParticleTypeEnum.Line)
{
if (MyUtils.IsZero(Velocity.LengthSquared()))
{
Velocity = MyUtils.GetRandomVector3Normalized();
}
MyQuadD quad = new MyQuadD();
MyPolyLineD polyLine = new MyPolyLineD();
polyLine.LineDirectionNormalized = MyUtils.Normalize(Velocity);
if (m_actualAngle > 0)
{
polyLine.LineDirectionNormalized = Vector3.TransformNormal(polyLine.LineDirectionNormalized, Matrix.CreateRotationY(MathHelper.ToRadians(m_actualAngle)));
}
polyLine.Point0 = m_actualPosition;
polyLine.Point1.X = m_actualPosition.X + polyLine.LineDirectionNormalized.X * actualRadius;
polyLine.Point1.Y = m_actualPosition.Y + polyLine.LineDirectionNormalized.Y * actualRadius;
polyLine.Point1.Z = m_actualPosition.Z + polyLine.LineDirectionNormalized.Z * actualRadius;
if (m_actualAngle > 0)
{ //centerize
polyLine.Point0.X = polyLine.Point0.X - polyLine.LineDirectionNormalized.X * actualRadius * 0.5f;
polyLine.Point0.Y = polyLine.Point0.Y - polyLine.LineDirectionNormalized.Y * actualRadius * 0.5f;
polyLine.Point0.Z = polyLine.Point0.Z - polyLine.LineDirectionNormalized.Z * actualRadius * 0.5f;
polyLine.Point1.X = polyLine.Point1.X - polyLine.LineDirectionNormalized.X * actualRadius * 0.5f;
polyLine.Point1.Y = polyLine.Point1.Y - polyLine.LineDirectionNormalized.Y * actualRadius * 0.5f;
polyLine.Point1.Z = polyLine.Point1.Z - polyLine.LineDirectionNormalized.Z * actualRadius * 0.5f;
}
polyLine.Thickness = Thickness;
var camPos = MyTransparentGeometry.Camera.Translation;
MyUtils.GetPolyLineQuad(out quad, ref polyLine, camPos);
if (this.m_generation.AlphaAnisotropic)
{
float angle = 1 - Math.Abs(Vector3.Dot(MyUtils.Normalize(MyTransparentGeometry.Camera.Forward), polyLine.LineDirectionNormalized));
float alphaCone = (float)Math.Pow(angle, 0.5f);
alpha = alphaCone;
}
billboard.Position0 = quad.Point0;
billboard.Position1 = quad.Point1;
billboard.Position2 = quad.Point2;
billboard.Position3 = quad.Point3;
}
else if (Type == MyParticleTypeEnum.Trail)
{
if (Quad.Point0 == Quad.Point2) //not moving particle
{
return(false);
}
if (Quad.Point1 == Quad.Point3) //not moving particle was previous one
{
return(false);
}
if (Quad.Point0 == Quad.Point3) //not moving particle was previous one
{
return(false);
}
billboard.Position0 = Quad.Point0;
billboard.Position1 = Quad.Point1;
billboard.Position2 = Quad.Point2;
billboard.Position3 = Quad.Point3;
//if (this.m_generation.AlphaAnisotropic)
/* { //Trails are anisotropic by default (nobody wants them to see ugly)
* Vector3 lineDir = Vector3.Normalize(Quad.Point1 - Quad.Point0);
* float angle = 1 - Math.Abs(Vector3.Dot(MyMwcUtils.Normalize(MyCamera.ForwardVector), lineDir));
* float alphaCone = (float)Math.Pow(angle, 0.3f);
* alpha = alphaCone;
* }*/
}
else
{
throw new NotSupportedException(Type + " is not supported particle type");
}
MyTransparentGeometry.EndParticleProfilingBlock();
MyTransparentGeometry.StartParticleProfilingBlock("Material calculation");
Vector4 color;
Color.GetInterpolatedValue <Vector4>(m_normalizedTime, out color);
var material1 = MyTransparentMaterials.GetMaterial("ErrorMaterial");
var material2 = MyTransparentMaterials.GetMaterial("ErrorMaterial");
float textureBlendRatio = 0;
if ((Flags & ParticleFlags.BlendTextures) != 0)
{
float prevTime, nextTime, difference;
Material.GetPreviousValue(m_normalizedTime, out material1, out prevTime);
Material.GetNextValue(m_normalizedTime, out material2, out nextTime, out difference);
if (prevTime != nextTime)
{
textureBlendRatio = (m_normalizedTime - prevTime) * difference;
}
}
else
{
Material.GetInterpolatedValue(m_normalizedTime, out material1);
}
MyTransparentGeometry.EndParticleProfilingBlock();
//This gets 0.44ms for 2000 particles
MyTransparentGeometry.StartParticleProfilingBlock("billboard.Start");
billboard.Material = material1.Name;
billboard.BlendMaterial = material2.Name;
billboard.BlendTextureRatio = textureBlendRatio;
billboard.EnableColorize = false;
billboard.Color = color * alpha * m_generation.GetEffect().UserColorMultiplier;
MyTransparentGeometry.EndParticleProfilingBlock();
return(true);
}