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misc optimization & refactoring

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This commit is contained in:
Regalis
2015-09-29 18:03:38 +03:00
parent cc16bb3ad7
commit 45178e745b
30 changed files with 820 additions and 210 deletions
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Subsurface/Source/Map/Lights/ConvexHull.cs
+111 -106
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@@ -10,18 +10,17 @@ namespace Subsurface.Lights
public static List<ConvexHull> list = new List<ConvexHull>();
static BasicEffect shadowEffect;
static BasicEffect penumbraEffect;
private static VertexPositionTexture[] penumbraVertices;
private VertexPositionColor[] vertices;
private short[] indices;
int primitiveCount;
private Vector2[] vertices;
private int primitiveCount;
bool[] backFacing;
VertexPositionColor[] shadowVertices;
private bool[] backFacing;
private VertexPositionColor[] shadowVertices;
private VertexPositionTexture[] penumbraVertices;
private Rectangle boundingBox;
public bool Enabled
{
get;
@@ -48,86 +47,77 @@ namespace Subsurface.Lights
penumbraEffect.LightingEnabled = false;
penumbraEffect.Texture = TextureLoader.FromFile("Content/Lights/penumbra.png");
}
vertices = points;
primitiveCount = vertices.Length;
if (penumbraVertices==null)
{
penumbraVertices = new VertexPositionTexture[6];
}
CalculateDimensions();
//indices = new short[primitiveCount * 3];
int vertexCount = points.Length;
vertices = new VertexPositionColor[vertexCount + 1];
Vector2 center = Vector2.Zero;
float? minX = null, minY = null, maxX = null, maxY = null;
for (int i = 0; i < vertexCount; i++)
{
vertices[i] = new VertexPositionColor(new Vector3(points[i], 0), color);
center += points[i];
if (minX == null || points[i].X < minX) minX = points[i].X;
if (minY == null || points[i].Y < minY) minY = points[i].Y;
if (maxX == null || points[i].X > maxX) maxX = points[i].X;
if (maxY == null || points[i].Y > minY) maxY = points[i].Y;
}
center /= points.Length;
vertices[vertexCount] = new VertexPositionColor(new Vector3(center, 0), color);
boundingBox = new Rectangle((int)minX, (int)minY, (int)(maxX-minX), (int)(maxY-minY));
primitiveCount = points.Length;
indices = new short[primitiveCount * 3];
for (int i = 0; i < primitiveCount; i++)
{
indices[3 * i] = (short)i;
indices[3 * i + 1] = (short)((i + 1) % vertexCount);
indices[3 * i + 2] = (short)vertexCount;
}
backFacing = new bool[vertexCount];
//for (int i = 0; i < primitiveCount; i++)
//{
// indices[3 * i] = (short)i;
// indices[3 * i + 1] = (short)((i + 1) % vertexCount);
// indices[3 * i + 2] = (short)vertexCount;
//}
backFacing = new bool[primitiveCount];
Enabled = true;
list.Add(this);
}
private void CalculateDimensions()
{
Vector2 center = Vector2.Zero;
float? minX = null, minY = null, maxX = null, maxY = null;
for (int i = 0; i < vertices.Length; i++)
{
center += vertices[i];
if (minX == null || vertices[i].X < minX) minX = vertices[i].X;
if (minY == null || vertices[i].Y < minY) minY = vertices[i].Y;
if (maxX == null || vertices[i].X > maxX) maxX = vertices[i].X;
if (maxY == null || vertices[i].Y > minY) maxY = vertices[i].Y;
}
center /= vertices.Length;
boundingBox = new Rectangle((int)minX, (int)minY, (int)(maxX - minX), (int)(maxY - minY));
}
public void Move(Vector2 amount)
{
for (int i = 0; i < vertices.Count(); i++)
{
vertices[i].Position = new Vector3(vertices[i].Position.X + amount.X, vertices[i].Position.Y + amount.Y, vertices[i].Position.Z);
vertices[i] += amount;
}
CalculateDimensions();
}
public void SetVertices(Vector2[] points)
{
int vertexCount = points.Length;
vertices = new VertexPositionColor[vertexCount + 1];
for (int i = 0; i < vertexCount; i++)
{
vertices[i] = new VertexPositionColor(new Vector3(points[i], 0), Color.Black);
}
vertices = points;
}
public void DrawShadows(GraphicsDevice graphicsDevice, Camera cam, Vector2 lightSourcePos, Matrix transform, bool los = true)
private void CalculateShadowVertices(Vector2 lightSourcePos, bool los = true)
{
if (!Enabled) return;
//compute facing of each edge, using N*L
for (int i = 0; i < primitiveCount; i++)
{
Vector2 firstVertex = new Vector2(vertices[i].Position.X, vertices[i].Position.Y);
Vector2 firstVertex = new Vector2(vertices[i].X, vertices[i].Y);
int secondIndex = (i + 1) % primitiveCount;
Vector2 secondVertex = new Vector2(vertices[secondIndex].Position.X, vertices[secondIndex].Position.Y);
Vector2 secondVertex = new Vector2(vertices[secondIndex].X, vertices[secondIndex].Y);
Vector2 middle = (firstVertex + secondVertex) / 2;
Vector2 L = lightSourcePos - middle;
Vector2 N = new Vector2();
N.X = -(secondVertex.Y - firstVertex.Y);
N.Y = secondVertex.X - firstVertex.X;
Vector2 N = new Vector2(
-(secondVertex.Y - firstVertex.Y),
secondVertex.X - firstVertex.X);
backFacing[i] = (Vector2.Dot(N, L) < 0);
}
@@ -148,49 +138,6 @@ namespace Subsurface.Lights
startingIndex = nextEdge;
}
if (los)
{
for (int n = 0; n < 4; n+=3)
{
Vector3 penumbraStart = (n == 0) ? vertices[startingIndex].Position : vertices[endingIndex].Position;
penumbraVertices[n] = new VertexPositionTexture();
penumbraVertices[n].Position = penumbraStart;
penumbraVertices[n].TextureCoordinate = new Vector2(0.0f, 1.0f);
//penumbraVertices[0].te = fow ? Color.Black : Color.Transparent;
for (int i = 0; i < 2; i++ )
{
penumbraVertices[n + i + 1] = new VertexPositionTexture();
Vector3 vertexDir = penumbraStart - new Vector3(lightSourcePos, 0);
vertexDir.Normalize();
Vector3 normal = (i == 0) ? new Vector3(-vertexDir.Y, vertexDir.X, 0.0f) : new Vector3(vertexDir.Y, -vertexDir.X, 0.0f)*0.05f;
if (n > 0) normal = -normal;
vertexDir = penumbraStart - (new Vector3(lightSourcePos, 0) - normal * 20.0f);
vertexDir.Normalize();
penumbraVertices[n + i + 1].Position = new Vector3(lightSourcePos, 0) + vertexDir * 9000;
if (los)
{
penumbraVertices[n + i + 1].TextureCoordinate = (i == 0) ? new Vector2(0.05f, 0.0f) : new Vector2(1.0f, 0.0f);
}
else
{
penumbraVertices[n + i + 1].TextureCoordinate = (i == 0) ? new Vector2(1.0f, 0.0f) : Vector2.Zero;
}
}
if (n > 0)
{
var temp = penumbraVertices[4];
penumbraVertices[4] = penumbraVertices[5];
penumbraVertices[5] = temp;
}
}
}
int shadowVertexCount;
//nr of vertices that are in the shadow
@@ -206,7 +153,7 @@ namespace Subsurface.Lights
int svCount = 0;
while (svCount != shadowVertexCount * 2)
{
Vector3 vertexPos = vertices[currentIndex].Position;
Vector3 vertexPos = new Vector3(vertices[currentIndex], 0.0f);
//one vertex on the hull
shadowVertices[svCount] = new VertexPositionColor();
@@ -224,10 +171,68 @@ namespace Subsurface.Lights
currentIndex = (currentIndex + 1) % primitiveCount;
}
if (los)
{
CalculatePenumbraVertices(startingIndex, endingIndex, lightSourcePos, los);
}
}
private void CalculatePenumbraVertices(int startingIndex, int endingIndex, Vector2 lightSourcePos, bool los)
{
penumbraVertices = new VertexPositionTexture[6];
for (int n = 0; n < 4; n += 3)
{
Vector3 penumbraStart = new Vector3((n == 0) ? vertices[startingIndex] : vertices[endingIndex], 0.0f);
penumbraVertices[n] = new VertexPositionTexture();
penumbraVertices[n].Position = penumbraStart;
penumbraVertices[n].TextureCoordinate = new Vector2(0.0f, 1.0f);
//penumbraVertices[0].te = fow ? Color.Black : Color.Transparent;
for (int i = 0; i < 2; i++)
{
penumbraVertices[n + i + 1] = new VertexPositionTexture();
Vector3 vertexDir = penumbraStart - new Vector3(lightSourcePos, 0);
vertexDir.Normalize();
Vector3 normal = (i == 0) ? new Vector3(-vertexDir.Y, vertexDir.X, 0.0f) : new Vector3(vertexDir.Y, -vertexDir.X, 0.0f) * 0.05f;
if (n > 0) normal = -normal;
vertexDir = penumbraStart - (new Vector3(lightSourcePos, 0) - normal * 20.0f);
vertexDir.Normalize();
penumbraVertices[n + i + 1].Position = new Vector3(lightSourcePos, 0) + vertexDir * 9000;
if (los)
{
penumbraVertices[n + i + 1].TextureCoordinate = (i == 0) ? new Vector2(0.05f, 0.0f) : new Vector2(1.0f, 0.0f);
}
else
{
penumbraVertices[n + i + 1].TextureCoordinate = (i == 0) ? new Vector2(1.0f, 0.0f) : Vector2.Zero;
}
}
if (n > 0)
{
var temp = penumbraVertices[4];
penumbraVertices[4] = penumbraVertices[5];
penumbraVertices[5] = temp;
}
}
}
public void DrawShadows(GraphicsDevice graphicsDevice, Camera cam, Vector2 lightSourcePos, Matrix transform, bool los = true)
{
if (!Enabled) return;
CalculateShadowVertices(lightSourcePos, los);
shadowEffect.World = transform;
shadowEffect.CurrentTechnique.Passes[0].Apply();
graphicsDevice.DrawUserPrimitives<VertexPositionColor>(PrimitiveType.TriangleStrip, shadowVertices, 0, shadowVertexCount * 2 - 2);
graphicsDevice.DrawUserPrimitives<VertexPositionColor>(PrimitiveType.TriangleStrip, shadowVertices, 0, shadowVertices.Length - 2);
if (los)
{