private void CreateLightmap(float dist2, Vector3 badPoint, string path, int texIndex, float hemisphereSizeDivisor, TextureMap texMap, ref float maxIntensity)
{
int gatherCount = 100;
int width = (int)(texMap.Width); // * RadiosityHelper.LightmapScale);
int height = (int)(texMap.Height); // * RadiosityHelper.LightmapScale);
float heightF = (float)texMap.Height; // *RadiosityHelper.LightmapScale;
float widthF = (float)texMap.Width; // *RadiosityHelper.LightmapScale;
float currentMaxIntensity = float.MinValue;
float diffuse = (float)RadiosityHelper.RadiosityDiffuseConstant;
widthF -= 1f;
heightF -= 1f;
SetOperation("Creating texture #" + (texIndex + 1));
//List<CompressedPhoton> photons;
Bitmap bitm = new Bitmap(width, height, PixelFormat.Format32bppRgb);
RadiosityMaterial mat; Vector3 norm;
for (int x = 0; x < width; x++)
{
for (int y = 0; y < heightF; y++)
{
bitm.SetPixel(x, y, m_bsp[0].ConvertUVTo3D(x, y, texIndex, 1, out mat, out norm) != Vector3.Empty ? new RealColor(1, 1, 1).ToARGB() : RealColor.Black.ToARGB());
}
}
bitm.Save("k:\\convmap_" + texIndex + "_" + 1);
//CreateLightmapWork(dist2, ref badPoint, texIndex, hemisphereSizeDivisor, texMap, width, height, heightF, widthF, ref currentMaxIntensity);
// We are going to cycle through the materials of the bsp.
EnhancedMesh[] meshes = m_bsp[0].GetMeshes(texIndex);
for (int m = 0; m < meshes.Length; m++)
{
EnhancedMesh material = meshes[m];
int faceCount = material.Indices.Length;
RectangleBounds <float> bounds = new RectangleBounds <float>(material.Vertices[0].u2, material.Vertices[0].v2);
// First we're going to figure out a rectangle for this material.
for (int v = 0; v < material.Vertices.Length; v++)
{
bounds.Update(material.Vertices[v].u2, material.Vertices[v].v2);
}
int x = (int)Math.Floor((widthF * bounds.left));
int startX = x;
int endX = (int)Math.Ceiling(widthF * bounds.right);
int y = (int)Math.Floor(heightF * bounds.top);
int endY = (int)Math.Ceiling(heightF * bounds.bottom);
//System.Diagnostics.Debugger.Break();
for (; y <= endY; y++)
{
x = startX;
for (; x <= endX; x++)
{
RadiosityMaterial illMaterial;
Vector3 faceNormal;
//if (y == 81)
// // if (x == 2)
//System.Diagnostics.Debugger.Break();
Vector3 worldPoint = m_bsp[0].ConvertUVTo3D(x, y, texIndex, m, out illMaterial, out faceNormal);
//AddDebugRay(worldPoint, faceNormal);
if (worldPoint != Vector3.Empty)
{
AddDebugPoint(worldPoint, RadiosityDebugPointListID.EstimateLocations);
var photons = photonMap.RetrieveNearestNeighbors((PhotonVector3)worldPoint, dist2, gatherCount, faceNormal);
RealColor estimate = RealColor.Black;
if (photons.Count > 0)
{
for (int p = 0; p < photons.Count; p++)
{
if (photons.list[p].photonPtr == null)
{
continue;
}
float dotP = Vector3.Dot(photons.list[p].photonPtr.Direction, faceNormal);
if (dotP < 0)
{
dotP *= -1;
//AddDebugPoint(photons.list[p].photonPtr
//AddDebugRay(photons.list[p].photonPtr.position.ToVector3(), photons.list[p].photonPtr.Direction);
}
estimate.Add(photons.list[p].photonPtr.Power.Copy().Multiply(dotP));
}
estimate.Multiply(diffuse);
estimate.Multiply(hemisphereSizeDivisor);
estimate.Multiply(illMaterial.AmbientLight);
//estimate.Multiply(1f / photons.Count);
if (RadiosityHelper.DoDistantLights)
{
if (illMaterial.DistantLightCount > 1)
{
estimate.LambertianShade(faceNormal, illMaterial.DistantLight2Color, illMaterial.DistantLight2Direction, illMaterial.AmbientLight);
estimate.LambertianShade(faceNormal, illMaterial.DistantLight1Color, illMaterial.DistantLight1Direction, illMaterial.AmbientLight);
}
else if (illMaterial.DistantLightCount > 0)
{
estimate.LambertianShade(faceNormal, illMaterial.DistantLight1Color, illMaterial.DistantLight1Direction, illMaterial.AmbientLight);
}
}
texMap.SetPixel(x, y, estimate);
}
else
{
texMap.SetPixel(x, y, new RealColor(Color.Pink));
}
}
//else continue; // if there is no normal, the estimate is useless.
}
}
}
if (currentMaxIntensity > maxIntensity)
{
maxIntensity = currentMaxIntensity;
}
texMap.SaveHDR(path + "lightmap_" + texIndex + ".hdr");
bitm = texMap.Filter(new LinearToneMapper(), false);
bitm.Save(path + "lightmap_" + texIndex + ".bmp");
}
