public PlanetMaterial GetLayeredMaterialForPosition(ref MaterialSampleParams ps, out byte spawnsItems, ref byte occlusion)
{
if (ps.DistanceToCenter < 0.01)
{
spawnsItems = 255;
occlusion = 0;
return m_defaultMaterial;
}
Byte roundedMaterial = 0;
PlanetMaterial voxelMaterial = null;
byte spawns = 0;
bool computeOcclusion = m_occlusionMap != null && ps.SurfaceDepth > -(ps.LodSize * 2) && occlusion != 0;
if (m_biomeMap != null)
spawns = m_biomeMap.Faces[ps.Face].GetValue(ps.Texcoord.X, ps.Texcoord.Y);
if (m_biomePixelSize < ps.LodSize)
{
if (m_materialMap != null)
roundedMaterial = m_materialMap.Faces[ps.Face].GetValue(ps.Texcoord.X, ps.Texcoord.Y);
if (computeOcclusion)
occlusion = m_occlusionMap.Faces[ps.Face].GetValue(ps.Texcoord.X, ps.Texcoord.Y);
else
occlusion = 0;
}
else
{
if (m_biomeMap != null)
roundedMaterial = ComputeMapBlend(ps.Texcoord, ps.Face, ref m_materialBC,
m_materialMap.Faces[ps.Face]);
if (computeOcclusion)
occlusion = ComputeMapBlend(ps.Texcoord, ps.Face, ref m_occlusionBC,
m_occlusionMap.Faces[ps.Face]);
else occlusion = 0;
}
m_materials.TryGetValue(roundedMaterial, out voxelMaterial);
if (MyFakes.ENABLE_DEFINITION_ENVIRONMENTS && voxelMaterial == null && m_biomes != null)
{
var rules = m_rangeBiomes[roundedMaterial];
if (rules != null && rules.Count != 0)
{
float height = (ps.SampledHeight - m_planetShape.MinHillHeight) * m_invHeightRange;
foreach (var rule in rules)
{
if (rule.Check(height, ps.Latitude, ps.Longitude, ps.Normal.Z))
{
voxelMaterial = rule;
break;
}
}
}
}
if (voxelMaterial == null)
{
voxelMaterial = m_defaultMaterial;
}
spawnsItems = spawns;
return voxelMaterial;
}
public void GetPositionParams(ref Vector3 pos, float lodSize, out MaterialSampleParams ps, bool skipCache = false)
{
Vector3 localPosition = pos - m_planetShape.Center();
ps.DistanceToCenter = localPosition.Length();
ps.LodSize = lodSize;
if (ps.DistanceToCenter < 0.01f)
{
ps.SurfaceDepth = 0;
ps.Gravity = Vector3.Down;
ps.Latitude = 0;
ps.Longitude = 0;
ps.Texcoord = Vector2.One / 2;
ps.Face = 0;
ps.Normal = Vector3.Backward;
ps.SampledHeight = 0;
return;
}
ps.Gravity = localPosition / ps.DistanceToCenter;
MyCubemapHelpers.CalculateSampleTexcoord(ref localPosition, out ps.Face, out ps.Texcoord);
// this guarantess texcoord in [0,1)
if (skipCache)
ps.SampledHeight = m_planetShape.GetValueForPositionCacheless(ps.Face, ref ps.Texcoord, out ps.Normal);
else
ps.SampledHeight = m_planetShape.GetValueForPositionWithCache(ps.Face, ref ps.Texcoord, out ps.Normal);
ps.SurfaceDepth = m_planetShape.SignedDistanceWithSample(lodSize, ps.DistanceToCenter, ps.SampledHeight) * ps.Normal.Z;
ps.Latitude = ps.Gravity.Y;
Vector2 lon = new Vector2(-ps.Gravity.X, -ps.Gravity.Z);
lon.Normalize();
ps.Longitude = lon.Y;
if (-ps.Gravity.X > 0)
{
ps.Longitude = 2 - ps.Longitude;
}
}
