//-----------------------------------------------------------------------------
// Computes the static vertex lighting term from a large number of spherical samples
//-----------------------------------------------------------------------------
public bool ComputeVertexLightFromSpericalSamples(Vector3 pos, Vector3 normal, SourceProp prop, out Vector3 tempmem)
{
tempmem = Vector3.Zero;
// Check to see if this vertex is in solid
trace_t trace = ClipMap.Instance.Box_Trace(pos, pos, Vector3.Zero, Vector3.Zero, 0, 1);
if (trace.allsolid || trace.startsolid)
return false;
int i;
float t = 0.0f;
// find any ambient lights
worldlight_t skyLight = FindAmbientLight();
// sample world by casting N rays distributed across a sphere
//float t = 0.0f;
Vector3 upend = Vector3.Zero, color = Vector3.Zero;
//int i;
//for (i = 0; i < 2; i++) // 162
//{
// float flDot = Vector3.Dot(normal, s_randdir[i]);
// if (flDot < 0.0f)
// continue;
// // FIXME: a good optimization would be to scale this per leaf
// upend = ViewParams.VectorMA(pos, 56891, s_randdir[i]);
// // Now that we've got a ray, see what surface we've hit
// int surfid = R_LightVec(pos, upend, false, ref color);
// if (surfid == -1)
// continue;
// // FIXME: Maybe make sure we aren't obstructed by static props?
// // To do this, R_LightVec would need to return distance of hit...
// // Or, we need another arg to R_LightVec to return black when hitting a static prop
// ComputeAmbientFromSurface(surfid, skyLight, ref color);
// t += flDot;
// tempmem = ViewParams.VectorMA(tempmem, flDot, color);
//}
//if (t != 0.0f)
// tempmem /= t;
// Now deal with direct lighting
bool hasSkylight = false;
// Figure out the PVS info for this location
int leaf = ClipMap.Instance.PointLeafnum(pos);
bool[] pvs = ClipMap.Instance.ClusterPVS(ClipMap.Instance.LeafCluster(leaf));
Vector3 vecdirection = Vector3.Zero;
// Now add in the direct lighting
for (i = 0; i < world.worldlights.Length; i++)
{
worldlight_t wl = world.worldlights[i];
// FIXME: This is sort of a hack; only one skylight is allowed in the
// lighting...
if (wl.Type == EmitType.SKYLIGHT && hasSkylight)
continue;
if (wl.Cluster < 0 || pvs == null || !pvs[wl.Cluster])
continue;
float flRatio = LightIntensityAndDirectionAtpoint(wl, pos, 4, ref vecdirection);
// No light contribution? Get outta here!
if (flRatio <= 0.0f)
continue;
// Check if we've got a skylight
if (wl.Type == EmitType.SKYLIGHT)
hasSkylight = true;
// Figure out spotlight attenuation
float flAngularRatio = WorldLightAngle(wl, wl.Normal, normal, vecdirection);
// Add in the direct lighting
tempmem = ViewParams.VectorMA(tempmem, flAngularRatio * flRatio, wl.Intensity);
}
return true;
}
void ComputeModelVertexLighting(SourceProp prop, VTXModel mdl, Matrix matrix, List<Vector4> lightmem, List<Color3> colors)
{
// for each vertex
//for (int i = 0; i < mdl.Lods[0].Meshes[0].StripGroups; ++i)
{
//ComputeVertexLightFromSpericalSamples
//Vector3 pos = mdl.Meshes[0].
}
}
void UpdateStaticPropLighting(SourceProp prop)
{
List<Color3> colors = new List<Color3>();
List<Vector4> lightmem = new List<Vector4>();
Matrix matrix = Matrix.AffineTransformation(1.0f, Vector3.Zero, Quaternion.RotationYawPitchRoll(prop.prop_t.Angles.X, -prop.prop_t.Angles.Z, prop.prop_t.Angles.Y), prop.prop_t.Origin);
for (int bodyID = 0; bodyID < prop.srcModel.BodyParts.Count; bodyID++)
{
BodyPart bpart = prop.srcModel.BodyParts[bodyID];
for (int modelid = 0; modelid < bpart.VTXBodyPart.Models.Length; modelid++)
{
VTXModel mdl = bpart.VTXBodyPart.Models[modelid];
ComputeModelVertexLighting(prop, mdl, matrix, lightmem, colors);
//for (int meshid = 0; meshid < mdl.Meshes.Count; meshid++)
//{
// MDLMesh mesh = mdl.Meshes[meshid];
// // Add specular?
//}
}
}
}
static void LoadGameAndProps(BinaryReader br, Header header)
{
// Game Lump
dgamelumpheader_t gameheader = new dgamelumpheader_t();
br.BaseStream.Seek(header.lumps[35].fileofs, SeekOrigin.Begin);
int gamelen = header.lumps[35].filelen;
gameheader.lumpCount = br.ReadInt32();
gameheader.gamelump = new dgamelump_t[gameheader.lumpCount];
for (int i = 0; i < gameheader.lumpCount; i++)
{
dgamelump_t game = new dgamelump_t();
game.id = br.ReadInt32();
game.flags = br.ReadUInt16();
game.version = br.ReadUInt16();
game.fileofs = br.ReadInt32();
game.filelen = br.ReadInt32();
gameheader.gamelump[i] = game;
}
// Read Static Props
foreach (dgamelump_t game in gameheader.gamelump)
{
if (game.id == 1936749168)
{
// read prop dict
StaticPropDictLump_t dict = new StaticPropDictLump_t();
br.BaseStream.Seek(game.fileofs, SeekOrigin.Begin);
dict.dictEntries = br.ReadInt32();
dict.Name = new string[dict.dictEntries];
Dictionary<string, SourceModel> srcmodels = new Dictionary<string, SourceModel>();
for (int i = 0; i < dict.dictEntries; i++)
{
char[] name = br.ReadChars(128);
dict.Name[i] = new string(name);
// cut \0 chars
int dindex = -1;
if ((dindex = dict.Name[i].IndexOf('\0')) != -1)
{
dict.Name[i] = dict.Name[i].Substring(0, dindex);
if (MDLReader.ReadFile(dict.Name[i]))
{
MDLReader.srcModel.Name = dict.Name[i];
srcmodels.Add(MDLReader.srcModel.Name, MDLReader.srcModel);
}
}
}
// Read prop leafs
StaticPropLeafLump_t propleaf = new StaticPropLeafLump_t();
propleaf.leafEntries = br.ReadInt32();
propleaf.leaf = new ushort[propleaf.leafEntries];
for (int i = 0; i < propleaf.leafEntries; i++)
{
propleaf.leaf[i] = br.ReadUInt16();
}
world.propleafs = propleaf;
// read props
int nStaticProps = br.ReadInt32();
StaticPropLump_t[] props = new StaticPropLump_t[nStaticProps];
for (int i = 0; i < nStaticProps; i++)
{
StaticPropLump_t prop = new StaticPropLump_t();
prop.Origin = SwapZY(new Vector3(br.ReadSingle(), br.ReadSingle(), br.ReadSingle()));
prop.Angles = new Vector3(br.ReadSingle(), br.ReadSingle(), br.ReadSingle());
prop.PropType = br.ReadUInt16();
prop.PropName = dict.Name[(int)prop.PropType];
prop.FirstLeaf = br.ReadUInt16();
prop.LeafCount = br.ReadUInt16();
prop.Solid = br.ReadByte();
prop.Flags = br.ReadByte();
prop.Skin = br.ReadInt32();
prop.FadeMinDist = br.ReadSingle();
prop.FadeMaxDist = br.ReadSingle();
prop.LightingOrigin = SwapZY(new Vector3(br.ReadSingle(), br.ReadSingle(), br.ReadSingle()));
if (game.version == 5)
prop.ForcedFaceScale = br.ReadSingle();
else
prop.ForcedFaceScale = 1f;
props[i] = prop;
SourceProp sprop = new SourceProp(prop);
if (srcmodels.ContainsKey(prop.PropName))
{
sprop.srcModel = srcmodels[prop.PropName];
world.sourceProps.Add(sprop);
}
// Index into leaves
if (prop.LeafCount + prop.FirstLeaf < world.propleafs.leafEntries)
{
for (int j = 0; j < prop.LeafCount; j++)
{
ushort leafIndex = world.propleafs.leaf[prop.FirstLeaf + j];
if (leafIndex >= world.leafs.Length)
{
int test = 2;
}
world.leafs[leafIndex].staticProps.Add(sprop);
}
}
}
world.props = props;
break;
}
}
}
