public static void CreateMesh(
NPVoxModel model,
Mesh mesh,
Vector3 cubeSize,
Vector3 NormalVariance,
int NormalVarianceSeed = 0,
NPVoxOptimization optimization = NPVoxOptimization.OFF,
NPVoxNormalMode NormalMode = NPVoxNormalMode.SMOOTH,
int BloodColorIndex = 0,
NPVoxFaces loop = null,
NPVoxFaces cutout = null,
NPVoxFaces include = null,
int MinVertexGroups = 1,
NPVoxNormalMode[] NormalModePerVoxelGroup = null,
NPVoxNormalProcessorList normalProcessors = null
)
{
bool hasVoxelGroups = model.HasVoxelGroups();
var vertices = new Vector3[model.NumVoxels * 8];
byte vertexGroupCount = model.NumVoxelGroups;
var triangles = new int[vertexGroupCount, model.NumVoxels * 36];
var normals = new Vector3[model.NumVoxels * 8];
var tangents = new Vector4[model.NumVoxels * 8];
var colors = new Color[model.NumVoxels * 8];
var tmp = new NPVoxMeshTempData[model.NumVoxels];
int currentVertexIndex = 0;
var currentTriangleIndex = new int[vertexGroupCount];
for (int i = 0; i < vertexGroupCount; i++)
{
currentTriangleIndex[i] = 0;
}
UnityEngine.Random.InitState(NormalVarianceSeed);
if (loop == null)
{
loop = new NPVoxFaces();
}
if (include == null)
{
include = new NPVoxFaces(1, 1, 1, 1, 1, 1);
}
NPVoxBox voxelsToInclude = model.BoundingBox;
Vector3 cutoutOffset = Vector3.zero;
if (cutout != null)
{
Vector3 originalCenter = voxelsToInclude.SaveCenter;
voxelsToInclude.Left = (sbyte)Mathf.Abs(cutout.Left);
voxelsToInclude.Down = (sbyte)Mathf.Abs(cutout.Down);
voxelsToInclude.Back = (sbyte)Mathf.Abs(cutout.Back);
voxelsToInclude.Right = (sbyte)(voxelsToInclude.Right - (sbyte)Mathf.Abs(cutout.Right));
voxelsToInclude.Up = (sbyte)(voxelsToInclude.Up - (sbyte)Mathf.Abs(cutout.Up));
voxelsToInclude.Forward = (sbyte)(voxelsToInclude.Forward - (sbyte)Mathf.Abs(cutout.Forward));
cutoutOffset = Vector3.Scale(originalCenter - voxelsToInclude.SaveCenter, cubeSize);
}
NPVoxToUnity npVoxToUnity = new NPVoxToUnity(model, cubeSize);
Vector3 size = new Vector3(
voxelsToInclude.Size.X * cubeSize.x,
voxelsToInclude.Size.Y * cubeSize.y,
voxelsToInclude.Size.Z * cubeSize.z
);
NPVoxBox voxelNormalNeighbours = new NPVoxBox(new NPVoxCoord(-1, -1, -1), new NPVoxCoord(1, 1, 1));
// Collect temporary data to use for model generation
int voxIndex = 0;
foreach (NPVoxCoord voxCoord in voxelsToInclude.Enumerate())
{
if (model.HasVoxel(voxCoord))
{
tmp[voxIndex] = new NPVoxMeshTempData();
tmp[voxIndex].loop = loop;
tmp[voxIndex].cutout = cutout;
tmp[voxIndex].include = include;
// Compute voxel center
tmp[voxIndex].voxelCenter = npVoxToUnity.ToUnityPosition(voxCoord) + cutoutOffset;
tmp[voxIndex].voxCoord = voxCoord;
tmp[voxIndex].voxToUnity = npVoxToUnity;
// Determine vertex group index
tmp[voxIndex].vertexGroupIndex = 0;
if (hasVoxelGroups)
{
tmp[voxIndex].vertexGroupIndex = model.GetVoxelGroup(voxCoord);
}
// Determine normal Mode
if (NormalModePerVoxelGroup != null && NormalModePerVoxelGroup.Length > tmp[voxIndex].vertexGroupIndex)
{
tmp[voxIndex].normalMode = NormalModePerVoxelGroup[tmp[voxIndex].vertexGroupIndex];
}
else
{
tmp[voxIndex].normalMode = NormalMode;
}
// do we have this side
tmp[voxIndex].hasLeft = !model.HasVoxel(model.LoopCoord(voxCoord + NPVoxCoord.LEFT, loop));
tmp[voxIndex].hasRight = !model.HasVoxel(model.LoopCoord(voxCoord + NPVoxCoord.RIGHT, loop));
tmp[voxIndex].hasDown = !model.HasVoxel(model.LoopCoord(voxCoord + NPVoxCoord.DOWN, loop));
tmp[voxIndex].hasUp = !model.HasVoxel(model.LoopCoord(voxCoord + NPVoxCoord.UP, loop));
tmp[voxIndex].hasForward = !model.HasVoxel(model.LoopCoord(voxCoord + NPVoxCoord.FORWARD, loop));
tmp[voxIndex].hasBack = !model.HasVoxel(model.LoopCoord(voxCoord + NPVoxCoord.BACK, loop));
// do we actually want to include this side in our mesh
// NOTE: cutout < 0 means we still render the mesh even though it is cutout
// cutout > 0 means we don't render the mesh when cutout
tmp[voxIndex].includeLeft = (tmp[voxIndex].hasLeft || (cutout.Left < 0 && voxCoord.X == voxelsToInclude.Left)) && include.Left == 1;
tmp[voxIndex].includeRight = (tmp[voxIndex].hasRight || (cutout.Right < 0 && voxCoord.X == voxelsToInclude.Right)) && include.Right == 1;
tmp[voxIndex].includeUp = (tmp[voxIndex].hasUp || (cutout.Up < 0 && voxCoord.Y == voxelsToInclude.Up)) && include.Up == 1;
tmp[voxIndex].includeDown = (tmp[voxIndex].hasDown || (cutout.Down < 0 && voxCoord.Y == voxelsToInclude.Down)) && include.Down == 1;
tmp[voxIndex].includeBack = (tmp[voxIndex].hasBack || (cutout.Back < 0 && voxCoord.Z == voxelsToInclude.Back)) && include.Back == 1;
tmp[voxIndex].includeForward = (tmp[voxIndex].hasForward || (cutout.Forward < 0 && voxCoord.Z == voxelsToInclude.Forward)) && include.Forward == 1;
tmp[voxIndex].isHidden = !tmp[voxIndex].hasForward &&
!tmp[voxIndex].hasBack &&
!tmp[voxIndex].hasLeft &&
!tmp[voxIndex].hasRight &&
!tmp[voxIndex].hasUp &&
!tmp[voxIndex].hasDown;
if (tmp[voxIndex].isHidden && optimization == NPVoxOptimization.PER_VOXEL)
{
continue;
}
if (tmp[voxIndex].isHidden && BloodColorIndex > 0)
{
model.SetVoxel(voxCoord, (byte)BloodColorIndex); // WTF WTF WTF?!? we should not modify the MODEL in here !!!! elfapo: AAAAHHH NOOOO!!!! :O j.k. ;)
}
Color color = model.GetColor(voxCoord);
// prepare cube vertices
tmp[voxIndex].numVertices = 0;
tmp[voxIndex].vertexIndexOffsetBegin = currentVertexIndex;
if (optimization != NPVoxOptimization.PER_FACE || tmp[voxIndex].includeBack || tmp[voxIndex].includeLeft || tmp[voxIndex].includeDown)
{
tmp[voxIndex].vertexIndexOffsets[0] = tmp[voxIndex].numVertices++;
tmp[voxIndex].vertexPositionOffsets[tmp[voxIndex].vertexIndexOffsets[0]] = new Vector3(-0.5f, -0.5f, -0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || tmp[voxIndex].includeBack || tmp[voxIndex].includeRight || tmp[voxIndex].includeDown)
{
tmp[voxIndex].vertexIndexOffsets[1] = tmp[voxIndex].numVertices++;
tmp[voxIndex].vertexPositionOffsets[tmp[voxIndex].vertexIndexOffsets[1]] = new Vector3(0.5f, -0.5f, -0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || tmp[voxIndex].includeBack || tmp[voxIndex].includeLeft || tmp[voxIndex].includeUp)
{
tmp[voxIndex].vertexIndexOffsets[2] = tmp[voxIndex].numVertices++;
tmp[voxIndex].vertexPositionOffsets[tmp[voxIndex].vertexIndexOffsets[2]] = new Vector3(-0.5f, 0.5f, -0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || tmp[voxIndex].includeBack || tmp[voxIndex].includeRight || tmp[voxIndex].includeUp)
{
tmp[voxIndex].vertexIndexOffsets[3] = tmp[voxIndex].numVertices++;
tmp[voxIndex].vertexPositionOffsets[tmp[voxIndex].vertexIndexOffsets[3]] = new Vector3(0.5f, 0.5f, -0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || tmp[voxIndex].includeForward || tmp[voxIndex].includeLeft || tmp[voxIndex].includeDown)
{
tmp[voxIndex].vertexIndexOffsets[4] = tmp[voxIndex].numVertices++;
tmp[voxIndex].vertexPositionOffsets[tmp[voxIndex].vertexIndexOffsets[4]] = new Vector3(-0.5f, -0.5f, 0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || tmp[voxIndex].includeForward || tmp[voxIndex].includeRight || tmp[voxIndex].includeDown)
{
tmp[voxIndex].vertexIndexOffsets[5] = tmp[voxIndex].numVertices++;
tmp[voxIndex].vertexPositionOffsets[tmp[voxIndex].vertexIndexOffsets[5]] = new Vector3(0.5f, -0.5f, 0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || tmp[voxIndex].includeForward || tmp[voxIndex].includeLeft || tmp[voxIndex].includeUp)
{
tmp[voxIndex].vertexIndexOffsets[6] = tmp[voxIndex].numVertices++;
tmp[voxIndex].vertexPositionOffsets[tmp[voxIndex].vertexIndexOffsets[6]] = new Vector3(-0.5f, 0.5f, 0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || tmp[voxIndex].includeForward || tmp[voxIndex].includeRight || tmp[voxIndex].includeUp)
{
tmp[voxIndex].vertexIndexOffsets[7] = tmp[voxIndex].numVertices++;
tmp[voxIndex].vertexPositionOffsets[tmp[voxIndex].vertexIndexOffsets[7]] = new Vector3(0.5f, 0.5f, 0.5f);
}
// add cube faces
int i = currentTriangleIndex[tmp[voxIndex].vertexGroupIndex];
// back
if (optimization != NPVoxOptimization.PER_FACE || tmp[voxIndex].includeBack)
{
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[0];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[2];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[1];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[2];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[3];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[1];
}
// Forward
if (optimization != NPVoxOptimization.PER_FACE || tmp[voxIndex].includeForward)
{
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[6];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[4];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[5];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[7];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[6];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[5];
}
// right
if (optimization != NPVoxOptimization.PER_FACE || tmp[voxIndex].includeRight)
{
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[1];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[3];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[5];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[3];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[7];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[5];
}
// left
if (optimization != NPVoxOptimization.PER_FACE || tmp[voxIndex].includeLeft)
{
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[0];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[4];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[2];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[2];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[4];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[6];
}
// up
if (optimization != NPVoxOptimization.PER_FACE || tmp[voxIndex].includeUp)
{
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[2];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[6];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[3];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[3];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[6];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[7];
}
// down
if (optimization != NPVoxOptimization.PER_FACE || tmp[voxIndex].includeDown)
{
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[0];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[1];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[4];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[1];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[5];
triangles[tmp[voxIndex].vertexGroupIndex, i++] = tmp[voxIndex].vertexIndexOffsetBegin + tmp[voxIndex].vertexIndexOffsets[4];
}
// Tangents
for (int t = 0; t < tmp[voxIndex].numVertices; t++)
{
// store voxel center for shader usage
Vector4 tangent = new Vector4();
tangent.x = tmp[voxIndex].voxelCenter.x;
tangent.y = tmp[voxIndex].voxelCenter.y;
tangent.z = tmp[voxIndex].voxelCenter.z;
// encode model size
tangent.w = ((voxelsToInclude.Size.X & 0x7F) << 14) | ((voxelsToInclude.Size.Y & 0x7F) << 7) | (voxelsToInclude.Size.Z & 0x7F);
tangents[tmp[voxIndex].vertexIndexOffsetBegin + t] = tangent;
}
// UVs
for (int t = 0; t < tmp[voxIndex].numVertices; t++)
{
colors[tmp[voxIndex].vertexIndexOffsetBegin + t] = color;
}
// translate & scale vertices to voxel position
for (int t = 0; t < tmp[voxIndex].numVertices; t++)
{
vertices[tmp[voxIndex].vertexIndexOffsetBegin + t] = tmp[voxIndex].voxelCenter + Vector3.Scale(tmp[voxIndex].vertexPositionOffsets[t], cubeSize);
}
currentTriangleIndex[tmp[voxIndex].vertexGroupIndex] = i;
currentVertexIndex += tmp[voxIndex].numVertices;
voxIndex++;
}
}
// elfapo: Remove invalid voxel information
Array.Resize(ref tmp, voxIndex);
////////////////////////////////////// NORMAL STAGES ////////////////////////////////////////
// elfapo TODO: Test area 'Normal Processor' Move Normal Processor stages to Normal Processor Pipeline:
//NPVoxNormalProcessor_Voxel generator = ScriptableObject.CreateInstance<NPVoxNormalProcessor_Voxel>();
//NPVoxNormalProcessor_Variance processor = ScriptableObject.CreateInstance<NPVoxNormalProcessor_Variance>();
//generator.InitOutputBuffer(normals);
//processor.InitOutputBuffer(normals);
//processor.NormalVariance = NormalVariance;
//processor.NormalVarianceSeed = NormalVarianceSeed;
//if (NormalModePerVoxelGroup != null && NormalModePerVoxelGroup.Length > 0)
//{
// for (int i = 0; i < NormalModePerVoxelGroup.Length; i++)
// {
// generator.ClearVoxelGroupFilters();
// generator.AddVoxelGroupFilter(i);
// generator.NormalMode = NormalModePerVoxelGroup[i];
// generator.Process(model, tmp, normals, normals);
// }
// processor.Process(model, tmp, normals, normals);
//}
//else
//{
// generator.NormalMode = NormalMode;
// generator.Process(model, tmp, normals, normals);
// processor.Process(model, tmp, normals, normals);
//}
//ScriptableObject.DestroyImmediate(generator);
//ScriptableObject.DestroyImmediate(processor);
if (normalProcessors != null)
{
normalProcessors.Run(model, tmp, normals, normals);
}
//////////////////////////////////////////////////////////////////////////////////////////////
// shrink arrays as needed
if (optimization != NPVoxOptimization.OFF)
{
Array.Resize(ref vertices, currentVertexIndex);
Array.Resize(ref normals, currentVertexIndex);
Array.Resize(ref tangents, currentVertexIndex);
Array.Resize(ref colors, currentVertexIndex);
}
mesh.vertices = vertices;
if (hasVoxelGroups)
{
mesh.subMeshCount = Math.Max(vertexGroupCount, MinVertexGroups);
for (int i = 0; i < vertexGroupCount; i++)
{
int numberOfTrianglesForVertexGroup = currentTriangleIndex[i];
int[] trianglesForVertexGroup = new int[numberOfTrianglesForVertexGroup];
for (int j = 0; j < numberOfTrianglesForVertexGroup; j++)
{
trianglesForVertexGroup[j] = triangles[i, j];
}
mesh.SetTriangles(trianglesForVertexGroup, i);
}
}
else
{
int numberOfTrianglesForVertexGroup = currentTriangleIndex[0];
int[] trianglesForVertexGroup = new int[numberOfTrianglesForVertexGroup];
Buffer.BlockCopy(triangles, 0,
trianglesForVertexGroup, 0,
numberOfTrianglesForVertexGroup * sizeof(int));
if (MinVertexGroups < 2)
{
mesh.triangles = trianglesForVertexGroup;
}
else
{
mesh.subMeshCount = MinVertexGroups;
mesh.SetTriangles(trianglesForVertexGroup, 0);
}
}
mesh.normals = normals;
mesh.tangents = tangents;
mesh.colors = colors;
mesh.bounds = new Bounds(Vector3.zero, size);
if (NormalMode == NPVoxNormalMode.AUTO)
{
mesh.RecalculateNormals();
}
}
public static void CreateMesh(
NPVoxModel model,
Mesh mesh,
Vector3 cubeSize,
Vector3 NormalVariance,
int NormalVarianceSeed = 0,
NPVoxOptimization optimization = NPVoxOptimization.OFF,
NPVoxNormalMode NormalMode = NPVoxNormalMode.SMOOTH,
int BloodColorIndex = 0,
NPVoxFaces loop = null,
NPVoxFaces cutout = null,
NPVoxFaces include = null,
int MinVertexGroups = 1,
NPVoxNormalMode[] NormalModePerVoxelGroup = null
)
{
bool hasVoxelGroups = model.HasVoxelGroups();
var vertices = new Vector3[model.NumVoxels * 8];
byte vertexGroupCount = model.NumVoxelGroups;
var triangles = new int[vertexGroupCount, model.NumVoxels * 36];
var normals = new Vector3[model.NumVoxels * 8];
var tangents = new Vector4[model.NumVoxels * 8];
var colors = new Color[model.NumVoxels * 8];
int currentVertexIndex = 0;
var currentTriangleIndex = new int[vertexGroupCount];
for (int i = 0; i < vertexGroupCount; i++)
{
currentTriangleIndex[i] = 0;
}
UnityEngine.Random.InitState(NormalVarianceSeed);
if (loop == null)
{
loop = new NPVoxFaces();
}
if (include == null)
{
include = new NPVoxFaces(1, 1, 1, 1, 1, 1);
}
NPVoxBox voxelsToInclude = model.BoundingBox;
Vector3 cutoutOffset = Vector3.zero;
if (cutout != null)
{
Vector3 originalCenter = voxelsToInclude.SaveCenter;
voxelsToInclude.Left = (sbyte)Mathf.Abs(cutout.Left);
voxelsToInclude.Down = (sbyte)Mathf.Abs(cutout.Down);
voxelsToInclude.Back = (sbyte)Mathf.Abs(cutout.Back);
voxelsToInclude.Right = (sbyte)(voxelsToInclude.Right - (sbyte)Mathf.Abs(cutout.Right));
voxelsToInclude.Up = (sbyte)(voxelsToInclude.Up - (sbyte)Mathf.Abs(cutout.Up));
voxelsToInclude.Forward = (sbyte)(voxelsToInclude.Forward - (sbyte)Mathf.Abs(cutout.Forward));
cutoutOffset = Vector3.Scale(originalCenter - voxelsToInclude.SaveCenter, cubeSize);
}
NPVoxToUnity npVoxToUnity = new NPVoxToUnity(model, cubeSize);
Vector3 size = new Vector3(
voxelsToInclude.Size.X * cubeSize.x,
voxelsToInclude.Size.Y * cubeSize.y,
voxelsToInclude.Size.Z * cubeSize.z
);
NPVoxBox voxelNormalNeighbours = new NPVoxBox(new NPVoxCoord(-1, -1, -1), new NPVoxCoord(1, 1, 1));
NPVoxNormalMode normalMode = NormalMode;
foreach (NPVoxCoord voxCoord in voxelsToInclude.Enumerate())
{
if (model.HasVoxel(voxCoord))
{
Vector3 voxelCenter = npVoxToUnity.ToUnityPosition(voxCoord) + cutoutOffset;
int vertexGroupIndex = 0;
if (hasVoxelGroups)
{
vertexGroupIndex = model.GetVoxelGroup(voxCoord);
}
if (NormalModePerVoxelGroup != null && NormalModePerVoxelGroup.Length > vertexGroupIndex)
{
normalMode = NormalModePerVoxelGroup[vertexGroupIndex];
}
else
{
normalMode = NormalMode;
}
// do we have this side
bool hasLeft = !model.HasVoxel(model.LoopCoord(voxCoord + NPVoxCoord.LEFT, loop));
bool hasRight = !model.HasVoxel(model.LoopCoord(voxCoord + NPVoxCoord.RIGHT, loop));
bool hasDown = !model.HasVoxel(model.LoopCoord(voxCoord + NPVoxCoord.DOWN, loop));
bool hasUp = !model.HasVoxel(model.LoopCoord(voxCoord + NPVoxCoord.UP, loop));
bool hasForward = !model.HasVoxel(model.LoopCoord(voxCoord + NPVoxCoord.FORWARD, loop));
bool hasBack = !model.HasVoxel(model.LoopCoord(voxCoord + NPVoxCoord.BACK, loop));
// do we actually want to include this side in our mesh
// NOTE: cutout < 0 means we still render the mesh even though it is cutout
// cutout > 0 means we don't render the mesh when cutout
bool includeLeft = (hasLeft || (cutout.Left < 0 && voxCoord.X == voxelsToInclude.Left)) && include.Left == 1;
bool includeRight = (hasRight || (cutout.Right < 0 && voxCoord.X == voxelsToInclude.Right)) && include.Right == 1;
bool includeUp = (hasUp || (cutout.Up < 0 && voxCoord.Y == voxelsToInclude.Up)) && include.Up == 1;
bool includeDown = (hasDown || (cutout.Down < 0 && voxCoord.Y == voxelsToInclude.Down)) && include.Down == 1;
bool includeBack = (hasBack || (cutout.Back < 0 && voxCoord.Z == voxelsToInclude.Back)) && include.Back == 1;
bool includeForward = (hasForward || (cutout.Forward < 0 && voxCoord.Z == voxelsToInclude.Forward)) && include.Forward == 1;
bool isHidden = !hasForward && !hasBack && !hasLeft && !hasRight && !hasUp && !hasDown;
if (isHidden && optimization == NPVoxOptimization.PER_VOXEL)
{
continue;
}
if (isHidden && BloodColorIndex > 0)
{
model.SetVoxel(voxCoord, (byte)BloodColorIndex); // WTF WTF WTF?!? we should not modify the MODEL in here !!!!
}
Color color = model.GetColor(voxCoord);
// prepare cube vertices
int numVertices = 0;
int[] vertexIndexOffsets = new int[8];
Vector3[] vertexPositionOffsets = new Vector3[8];
if (optimization != NPVoxOptimization.PER_FACE || includeBack || includeLeft || includeDown)
{
vertexIndexOffsets[0] = numVertices++;
vertexPositionOffsets[vertexIndexOffsets[0]] = new Vector3(-0.5f, -0.5f, -0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || includeBack || includeRight || includeDown)
{
vertexIndexOffsets[1] = numVertices++;
vertexPositionOffsets[vertexIndexOffsets[1]] = new Vector3(0.5f, -0.5f, -0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || includeBack || includeLeft || includeUp)
{
vertexIndexOffsets[2] = numVertices++;
vertexPositionOffsets[vertexIndexOffsets[2]] = new Vector3(-0.5f, 0.5f, -0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || includeBack || includeRight || includeUp)
{
vertexIndexOffsets[3] = numVertices++;
vertexPositionOffsets[vertexIndexOffsets[3]] = new Vector3(0.5f, 0.5f, -0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || includeForward || includeLeft || includeDown)
{
vertexIndexOffsets[4] = numVertices++;
vertexPositionOffsets[vertexIndexOffsets[4]] = new Vector3(-0.5f, -0.5f, 0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || includeForward || includeRight || includeDown)
{
vertexIndexOffsets[5] = numVertices++;
vertexPositionOffsets[vertexIndexOffsets[5]] = new Vector3(0.5f, -0.5f, 0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || includeForward || includeLeft || includeUp)
{
vertexIndexOffsets[6] = numVertices++;
vertexPositionOffsets[vertexIndexOffsets[6]] = new Vector3(-0.5f, 0.5f, 0.5f);
}
if (optimization != NPVoxOptimization.PER_FACE || includeForward || includeRight || includeUp)
{
vertexIndexOffsets[7] = numVertices++;
vertexPositionOffsets[vertexIndexOffsets[7]] = new Vector3(0.5f, 0.5f, 0.5f);
}
// add cube faces
int i = currentTriangleIndex[vertexGroupIndex];
// back
if (optimization != NPVoxOptimization.PER_FACE || includeBack)
{
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[0];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[2];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[1];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[2];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[3];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[1];
}
// Forward
if (optimization != NPVoxOptimization.PER_FACE || includeForward)
{
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[6];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[4];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[5];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[7];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[6];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[5];
}
// right
if (optimization != NPVoxOptimization.PER_FACE || includeRight)
{
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[1];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[3];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[5];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[3];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[7];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[5];
}
// left
if (optimization != NPVoxOptimization.PER_FACE || includeLeft)
{
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[0];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[4];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[2];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[2];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[4];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[6];
}
// up
if (optimization != NPVoxOptimization.PER_FACE || includeUp)
{
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[2];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[6];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[3];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[3];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[6];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[7];
}
// down
if (optimization != NPVoxOptimization.PER_FACE || includeDown)
{
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[0];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[1];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[4];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[1];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[5];
triangles[vertexGroupIndex, i++] = currentVertexIndex + vertexIndexOffsets[4];
}
// TODO create some kind of strategy pattern for the normal calculation, else this here is becomming a mess ...
Vector3 variance = Vector3.zero;
if (NormalVariance.x != 0 || NormalVariance.y != 0 || NormalVariance.z != 0)
{
variance.x = -NormalVariance.x * 0.5f + 2 * UnityEngine.Random.value * NormalVariance.x;
variance.y = -NormalVariance.y * 0.5f + 2 * UnityEngine.Random.value * NormalVariance.y;
variance.z = -NormalVariance.z * 0.5f + 2 * UnityEngine.Random.value * NormalVariance.z;
}
// calculate normals based on present neighbour voxels
Vector3 voxelNormal = Vector3.zero;
if (!isHidden)
{
foreach (NPVoxCoord offset in voxelNormalNeighbours.Enumerate())
{
NPVoxCoord checkCoord = voxCoord + offset;
checkCoord = model.LoopCoord(checkCoord, loop);
if (!model.HasVoxel(checkCoord))
{
voxelNormal += NPVoxCoordUtil.ToVector(offset);
}
}
voxelNormal.Normalize();
}
else
{
voxelNormal = voxelCenter.normalized;
}
// Normals
for (int t = 0; t < numVertices; t++)
{
Vector3 normal = Vector3.zero;
switch (normalMode)
{
case NPVoxNormalMode.VOXEL:
normal = voxelNormal;
normal = Vector3.zero;
if (vertexPositionOffsets[t].x < 0.0f)
{
if (hasLeft && !hasForward && !hasBack && !hasUp && !hasDown)
{
normal.x = -1;
}
else
{
normal.x = voxelNormal.x;
}
}
else if (vertexPositionOffsets[t].x > 0.0f)
{
if (hasRight && !hasForward && !hasBack && !hasUp && !hasDown)
{
normal.x = 1;
}
else
{
normal.x = voxelNormal.x;
}
}
if (vertexPositionOffsets[t].y < 0.0f)
{
if (hasUp && !hasForward && !hasBack && !hasLeft && !hasRight)
{
normal.y = -1;
}
else
{
normal.y = voxelNormal.y;
}
}
else if (vertexPositionOffsets[t].y > 0.0f)
{
if (hasDown && !hasForward && !hasBack && !hasLeft && !hasRight)
{
normal.y = +1;
}
else
{
normal.y = voxelNormal.y;
}
}
if (vertexPositionOffsets[t].z < 0.0f)
{
if (hasBack && !hasLeft && !hasRight && !hasUp && !hasDown)
{
normal.z = -1;
}
else
{
normal.z = voxelNormal.z;
}
}
else if (vertexPositionOffsets[t].z > 0.0f)
{
if (hasForward && !hasLeft && !hasRight && !hasUp && !hasDown)
{
normal.z = +1;
}
else
{
normal.z = voxelNormal.z;
}
}
if (Mathf.Abs(normal.x) < 0.1f && Mathf.Abs(normal.y) < 0.1f && Mathf.Abs(normal.z) < 0.1f)
{
// we would like to have full color when we are a stand-alone voxel, however there is no way to do so right now, so we just
// fallback to the centoid normal
normal = voxelCenter;
}
normal.Normalize();
break;
case NPVoxNormalMode.SMOOTH:
normal = Vector3.zero;
for (float xx = -0.5f; xx < 1.0f; xx += 1f)
{
for (float yy = -.5f; yy < 1; yy += 1)
{
for (float zz = -.5f; zz < 1; zz += 1)
{
sbyte xCoord = (sbyte)Mathf.Round(vertexPositionOffsets[t].x + xx);
sbyte yCoord = (sbyte)Mathf.Round(vertexPositionOffsets[t].y + yy);
sbyte zCoord = (sbyte)Mathf.Round(vertexPositionOffsets[t].z + zz);
if (!model.HasVoxel(voxCoord + new NPVoxCoord((sbyte)xCoord, (sbyte)yCoord, (sbyte)zCoord)))
{
normal += new Vector3(
xx,
yy,
zz
);
}
}
}
}
normal.Normalize();
break;
case NPVoxNormalMode.FORWARD: normal = Vector3.forward; break;
case NPVoxNormalMode.BACK: normal = Vector3.back; break;
case NPVoxNormalMode.UP: normal = Vector3.up; break;
case NPVoxNormalMode.DOWN: normal = Vector3.down; break;
case NPVoxNormalMode.LEFT: normal = Vector3.left; break;
case NPVoxNormalMode.RIGHT: normal = Vector3.right; break;
}
normals[currentVertexIndex + t] = (normal + variance).normalized;
// store voxel center for shader usage
Vector4 tangent = new Vector4();
tangent.x = voxelCenter.x;
tangent.y = voxelCenter.y;
tangent.z = voxelCenter.z;
// encode model size
tangent.w = ((voxelsToInclude.Size.X & 0x7F) << 14) | ((voxelsToInclude.Size.Y & 0x7F) << 7) | (voxelsToInclude.Size.Z & 0x7F);
tangents[currentVertexIndex + t] = tangent;
}
// UVs
for (int t = 0; t < numVertices; t++)
{
colors[currentVertexIndex + t] = color;
}
// translate & scale vertices to voxel position
for (int t = 0; t < numVertices; t++)
{
vertices[currentVertexIndex + t] = voxelCenter + Vector3.Scale(vertexPositionOffsets[t], cubeSize);
}
currentTriangleIndex[vertexGroupIndex] = i;
currentVertexIndex += numVertices;
}
}
// shrink arrays as needed
if (optimization != NPVoxOptimization.OFF)
{
Array.Resize(ref vertices, currentVertexIndex);
Array.Resize(ref normals, currentVertexIndex);
Array.Resize(ref tangents, currentVertexIndex);
Array.Resize(ref colors, currentVertexIndex);
}
mesh.vertices = vertices;
if (hasVoxelGroups)
{
mesh.subMeshCount = Math.Max(vertexGroupCount, MinVertexGroups);
for (int i = 0; i < vertexGroupCount; i++)
{
int numberOfTrianglesForVertexGroup = currentTriangleIndex[i];
int[] trianglesForVertexGroup = new int[numberOfTrianglesForVertexGroup];
for (int j = 0; j < numberOfTrianglesForVertexGroup; j++)
{
trianglesForVertexGroup[j] = triangles[i, j];
}
mesh.SetTriangles(trianglesForVertexGroup, i);
}
}
else
{
int numberOfTrianglesForVertexGroup = currentTriangleIndex[0];
int[] trianglesForVertexGroup = new int[numberOfTrianglesForVertexGroup];
Buffer.BlockCopy(triangles, 0,
trianglesForVertexGroup, 0,
numberOfTrianglesForVertexGroup * sizeof(int));
if (MinVertexGroups < 2)
{
mesh.triangles = trianglesForVertexGroup;
}
else
{
mesh.subMeshCount = MinVertexGroups;
mesh.SetTriangles(trianglesForVertexGroup, 0);
}
}
mesh.normals = normals;
mesh.tangents = tangents;
mesh.colors = colors;
mesh.bounds = new Bounds(Vector3.zero, size);
if (NormalMode == NPVoxNormalMode.AUTO)
{
mesh.RecalculateNormals();
}
}