public static LightmapGroup FindCoplanar(List <LightmapGroup> lmGroups, LMFace otherFace)
{
foreach (LightmapGroup group in lmGroups)
{
if ((group.Plane.Normal - otherFace.Plane.Normal).LengthSquared() < 0.01f)
{
PlaneF plane2 = new PlaneF(otherFace.Plane.Normal, otherFace.Vertices[0].Location);
if (Math.Abs(plane2.EvalAtPoint((group.Plane.PointOnPlane))) > 4.0f)
{
continue;
}
BoxF faceBox = new BoxF(otherFace.BoundingBox.Start - new CoordinateF(3.0f, 3.0f, 3.0f), otherFace.BoundingBox.End + new CoordinateF(3.0f, 3.0f, 3.0f));
if (faceBox.IntersectsWith(group.BoundingBox))
{
return(group);
}
}
}
return(null);
}
private static void RenderLightOntoFace(Document doc, float[][] bitmaps, List <Light> lights, LightmapGroup group, LMFace targetFace, IEnumerable <LMFace> blockerFaces)
{
Random rand = new Random();
int writeX = group.writeX;
int writeY = group.writeY;
int textureDims;
lock (doc.TextureCollection.Lightmaps)
{
textureDims = doc.TextureCollection.Lightmaps[0].Width;
}
lights = lights.FindAll(x =>
{
float range = x.Range;
BoxF lightBox = new BoxF(x.Origin - new CoordinateF(range, range, range), x.Origin + new CoordinateF(range, range, range));
return(lightBox.IntersectsWith(targetFace.BoundingBox));
});
float?minX = null; float?maxX = null;
float?minY = null; float?maxY = null;
foreach (CoordinateF coord in targetFace.Vertices.Select(x => x.Location))
{
float x = coord.Dot(group.uAxis);
float y = coord.Dot(group.vAxis);
if (minX == null || x < minX)
{
minX = x;
}
if (minY == null || y < minY)
{
minY = y;
}
if (maxX == null || x > maxX)
{
maxX = x;
}
if (maxY == null || y > maxY)
{
maxY = y;
}
}
CoordinateF leewayPoint = group.Plane.PointOnPlane + (group.Plane.Normal * Math.Max(LightmapConfig.DownscaleFactor * 0.25f, 1.5f));
minX -= LightmapConfig.DownscaleFactor; minY -= LightmapConfig.DownscaleFactor;
maxX += LightmapConfig.DownscaleFactor; maxY += LightmapConfig.DownscaleFactor;
minX /= LightmapConfig.DownscaleFactor; minX = (float)Math.Ceiling(minX.Value); minX *= LightmapConfig.DownscaleFactor;
minY /= LightmapConfig.DownscaleFactor; minY = (float)Math.Ceiling(minY.Value); minY *= LightmapConfig.DownscaleFactor;
maxX /= LightmapConfig.DownscaleFactor; maxX = (float)Math.Ceiling(maxX.Value); maxX *= LightmapConfig.DownscaleFactor;
maxY /= LightmapConfig.DownscaleFactor; maxY = (float)Math.Ceiling(maxY.Value); maxY *= LightmapConfig.DownscaleFactor;
foreach (LMFace.Vertex vert in targetFace.Vertices)
{
float x = vert.Location.Dot(group.uAxis);
float y = vert.Location.Dot(group.vAxis);
float u = (writeX + 0.5f + (x - group.minTotalX.Value) / LightmapConfig.DownscaleFactor);
float v = (writeY + 0.5f + (y - group.minTotalY.Value) / LightmapConfig.DownscaleFactor);
targetFace.LmIndex = (u >= LightmapConfig.TextureDims ? 1 : 0) + (v >= LightmapConfig.TextureDims ? 2 : 0);
u /= (float)textureDims;
v /= (float)textureDims;
vert.LMU = u; vert.LMV = v;
vert.OriginalVertex.LMU = u; vert.OriginalVertex.LMV = v;
}
float centerX = (maxX.Value + minX.Value) / 2;
float centerY = (maxY.Value + minY.Value) / 2;
int iterX = (int)Math.Ceiling((maxX.Value - minX.Value) / LightmapConfig.DownscaleFactor);
int iterY = (int)Math.Ceiling((maxY.Value - minY.Value) / LightmapConfig.DownscaleFactor);
float[][,] r = new float[4][, ];
r[0] = new float[iterX, iterY];
r[1] = new float[iterX, iterY];
r[2] = new float[iterX, iterY];
r[3] = new float[iterX, iterY];
float[][,] g = new float[4][, ];
g[0] = new float[iterX, iterY];
g[1] = new float[iterX, iterY];
g[2] = new float[iterX, iterY];
g[3] = new float[iterX, iterY];
float[][,] b = new float[4][, ];
b[0] = new float[iterX, iterY];
b[1] = new float[iterX, iterY];
b[2] = new float[iterX, iterY];
b[3] = new float[iterX, iterY];
foreach (Light light in lights)
{
CoordinateF lightPos = light.Origin;
float lightRange = light.Range;
CoordinateF lightColor = light.Color * (1.0f / 255.0f) * light.Intensity;
BoxF lightBox = new BoxF(new BoxF[] { targetFace.BoundingBox, new BoxF(light.Origin - new CoordinateF(30.0f, 30.0f, 30.0f), light.Origin + new CoordinateF(30.0f, 30.0f, 30.0f)) });
List <LMFace> applicableBlockerFaces = blockerFaces.Where(x =>
{
if (x == targetFace)
{
return(false);
}
if (group.Faces.Contains(x))
{
return(false);
}
//return true;
if (lightBox.IntersectsWith(x.BoundingBox))
{
return(true);
}
return(false);
}).ToList();
bool[,] illuminated = new bool[iterX, iterY];
for (int y = 0; y < iterY; y++)
{
for (int x = 0; x < iterX; x++)
{
illuminated[x, y] = true;
}
}
for (int y = 0; y < iterY; y++)
{
for (int x = 0; x < iterX; x++)
{
int tX = (int)(writeX + x + (int)(minX - group.minTotalX) / LightmapConfig.DownscaleFactor);
int tY = (int)(writeY + y + (int)(minY - group.minTotalY) / LightmapConfig.DownscaleFactor);
if (tX >= 0 && tY >= 0 && tX < textureDims && tY < textureDims)
{
int offset = (tX + tY * textureDims) * Bitmap.GetPixelFormatSize(System.Drawing.Imaging.PixelFormat.Format32bppArgb) / 8;
bitmaps[0][offset + 3] = 1.0f;
bitmaps[1][offset + 3] = 1.0f;
bitmaps[2][offset + 3] = 1.0f;
bitmaps[3][offset + 3] = 1.0f;
}
}
}
for (int y = 0; y < iterY; y++)
{
for (int x = 0; x < iterX; x++)
{
float ttX = minX.Value + (x * LightmapConfig.DownscaleFactor);
float ttY = minY.Value + (y * LightmapConfig.DownscaleFactor);
CoordinateF pointOnPlane = (ttX - centerX) * group.uAxis + (ttY - centerY) * group.vAxis + targetFace.BoundingBox.Center;
/*Entity entity = new Entity(map.IDGenerator.GetNextObjectID());
* entity.Colour = Color.Pink;
* entity.Origin = new Coordinate(pointOnPlane);
* entity.UpdateBoundingBox();
* entity.SetParent(map.WorldSpawn);*/
int tX = (int)(writeX + x + (int)(minX - group.minTotalX) / LightmapConfig.DownscaleFactor);
int tY = (int)(writeY + y + (int)(minY - group.minTotalY) / LightmapConfig.DownscaleFactor);
CoordinateF luxelColor0 = new CoordinateF(r[0][x, y], g[0][x, y], b[0][x, y]);
CoordinateF luxelColor1 = new CoordinateF(r[1][x, y], g[1][x, y], b[1][x, y]);
CoordinateF luxelColor2 = new CoordinateF(r[2][x, y], g[2][x, y], b[2][x, y]);
CoordinateF luxelColorNorm = new CoordinateF(r[3][x, y], g[3][x, y], b[3][x, y]);
float dotToLight0 = Math.Max((lightPos - pointOnPlane).Normalise().Dot(targetFace.LightBasis0), 0.0f);
float dotToLight1 = Math.Max((lightPos - pointOnPlane).Normalise().Dot(targetFace.LightBasis1), 0.0f);
float dotToLight2 = Math.Max((lightPos - pointOnPlane).Normalise().Dot(targetFace.LightBasis2), 0.0f);
float dotToLightNorm = Math.Max((lightPos - pointOnPlane).Normalise().Dot(targetFace.Normal), 0.0f);
if (illuminated[x, y] && (pointOnPlane - lightPos).LengthSquared() < lightRange * lightRange)
{
#if TRUE
LineF lineTester = new LineF(lightPos, pointOnPlane);
for (int i = 0; i < applicableBlockerFaces.Count; i++)
{
LMFace otherFace = applicableBlockerFaces[i];
CoordinateF hit = otherFace.GetIntersectionPoint(lineTester);
if (hit != null && ((hit - leewayPoint).Dot(group.Plane.Normal) > 0.0f || (hit - pointOnPlane).LengthSquared() > LightmapConfig.DownscaleFactor * 2f))
{
applicableBlockerFaces.RemoveAt(i);
applicableBlockerFaces.Insert(0, otherFace);
illuminated[x, y] = false;
i++;
break;
}
}
#endif
}
else
{
illuminated[x, y] = false;
}
if (illuminated[x, y])
{
float brightness = (lightRange - (pointOnPlane - lightPos).VectorMagnitude()) / lightRange;
if (light.Direction != null)
{
float directionDot = light.Direction.Dot((pointOnPlane - lightPos).Normalise());
if (directionDot < light.innerCos)
{
if (directionDot < light.outerCos)
{
brightness = 0.0f;
}
else
{
brightness *= (directionDot - light.outerCos.Value) / (light.innerCos.Value - light.outerCos.Value);
}
}
}
float brightness0 = dotToLight0 * brightness * brightness;
float brightness1 = dotToLight1 * brightness * brightness;
float brightness2 = dotToLight2 * brightness * brightness;
float brightnessNorm = dotToLightNorm * brightness * brightness;
brightness0 += ((float)rand.NextDouble() - 0.5f) * 0.005f;
brightness1 += ((float)rand.NextDouble() - 0.5f) * 0.005f;
brightness2 += ((float)rand.NextDouble() - 0.5f) * 0.005f;
brightnessNorm += ((float)rand.NextDouble() - 0.5f) * 0.005f;
r[0][x, y] += lightColor.Z * brightness0; if (r[0][x, y] > 1.0f)
{
r[0][x, y] = 1.0f;
}
if (r[0][x, y] < 0)
{
r[0][x, y] = 0;
}
g[0][x, y] += lightColor.Y * brightness0; if (g[0][x, y] > 1.0f)
{
g[0][x, y] = 1.0f;
}
if (g[0][x, y] < 0)
{
g[0][x, y] = 0;
}
b[0][x, y] += lightColor.X * brightness0; if (b[0][x, y] > 1.0f)
{
b[0][x, y] = 1.0f;
}
if (b[0][x, y] < 0)
{
b[0][x, y] = 0;
}
r[1][x, y] += lightColor.Z * brightness1; if (r[1][x, y] > 1.0f)
{
r[1][x, y] = 1.0f;
}
if (r[1][x, y] < 0)
{
r[1][x, y] = 0;
}
g[1][x, y] += lightColor.Y * brightness1; if (g[1][x, y] > 1.0f)
{
g[1][x, y] = 1.0f;
}
if (g[1][x, y] < 0)
{
g[1][x, y] = 0;
}
b[1][x, y] += lightColor.X * brightness1; if (b[1][x, y] > 1.0f)
{
b[1][x, y] = 1.0f;
}
if (b[1][x, y] < 0)
{
b[1][x, y] = 0;
}
r[2][x, y] += lightColor.Z * brightness2; if (r[2][x, y] > 1.0f)
{
r[2][x, y] = 1.0f;
}
if (r[2][x, y] < 0)
{
r[2][x, y] = 0;
}
g[2][x, y] += lightColor.Y * brightness2; if (g[2][x, y] > 1.0f)
{
g[2][x, y] = 1.0f;
}
if (g[2][x, y] < 0)
{
g[2][x, y] = 0;
}
b[2][x, y] += lightColor.X * brightness2; if (b[2][x, y] > 1.0f)
{
b[2][x, y] = 1.0f;
}
if (b[2][x, y] < 0)
{
b[2][x, y] = 0;
}
r[3][x, y] += lightColor.Z * brightnessNorm; if (r[3][x, y] > 1.0f)
{
r[3][x, y] = 1.0f;
}
if (r[3][x, y] < 0)
{
r[3][x, y] = 0;
}
g[3][x, y] += lightColor.Y * brightnessNorm; if (g[3][x, y] > 1.0f)
{
g[3][x, y] = 1.0f;
}
if (g[3][x, y] < 0)
{
g[3][x, y] = 0;
}
b[3][x, y] += lightColor.X * brightnessNorm; if (b[3][x, y] > 1.0f)
{
b[3][x, y] = 1.0f;
}
if (b[3][x, y] < 0)
{
b[3][x, y] = 0;
}
luxelColor0 = new CoordinateF(r[0][x, y], g[0][x, y], b[0][x, y]);
luxelColor1 = new CoordinateF(r[1][x, y], g[1][x, y], b[1][x, y]);
luxelColor2 = new CoordinateF(r[2][x, y], g[2][x, y], b[2][x, y]);
luxelColorNorm = new CoordinateF(r[3][x, y], g[3][x, y], b[3][x, y]);
if (tX >= 0 && tY >= 0 && tX < textureDims && tY < textureDims)
{
int offset = (tX + tY * textureDims) * Bitmap.GetPixelFormatSize(System.Drawing.Imaging.PixelFormat.Format32bppArgb) / 8;
if (luxelColor0.X + luxelColor0.Y + luxelColor0.Z > bitmaps[0][offset + 2] + bitmaps[0][offset + 1] + bitmaps[0][offset + 0])
{
bitmaps[0][offset + 0] = luxelColor0.X;
bitmaps[0][offset + 1] = luxelColor0.Y;
bitmaps[0][offset + 2] = luxelColor0.Z;
}
if (luxelColor1.X + luxelColor1.Y + luxelColor1.Z > bitmaps[1][offset + 2] + bitmaps[1][offset + 1] + bitmaps[1][offset + 0])
{
bitmaps[1][offset + 0] = luxelColor1.X;
bitmaps[1][offset + 1] = luxelColor1.Y;
bitmaps[1][offset + 2] = luxelColor1.Z;
}
if (luxelColor2.X + luxelColor2.Y + luxelColor2.Z > bitmaps[2][offset + 2] + bitmaps[2][offset + 1] + bitmaps[2][offset + 0])
{
bitmaps[2][offset + 0] = luxelColor2.X;
bitmaps[2][offset + 1] = luxelColor2.Y;
bitmaps[2][offset + 2] = luxelColor2.Z;
}
if (luxelColorNorm.X + luxelColorNorm.Y + luxelColorNorm.Z > bitmaps[3][offset + 2] + bitmaps[3][offset + 1] + bitmaps[3][offset + 0])
{
bitmaps[3][offset + 0] = luxelColorNorm.X;
bitmaps[3][offset + 1] = luxelColorNorm.Y;
bitmaps[3][offset + 2] = luxelColorNorm.Z;
}
}
}
}
}
}
}