public void refresh(bool reload_asset, bool has_geo_changed, bool has_material_changed)
{
if (prGeoControl == null)
{
Debug.LogError("Why is my geo control null on a refresh?");
return;
}
GameObject part_node = gameObject;
// Get Part info.
HAPI_PartInfo part_info = new HAPI_PartInfo();
HoudiniHost.getPartInfo(prAssetId, prObjectId, prGeoId, prPartId, out part_info);
bool is_empty = part_info.vertexCount <= 0 && part_info.pointCount <= 0;
bool is_mesh = (part_info.vertexCount > 0);
// For Debugging.
#if false
Debug.Log("ATTRIBS");
HoudiniAssetUtility.printAllAttributeNames(prAssetId, prObjectId, prGeoId, prPartId);
Debug.Log("GROUPS");
HoudiniAssetUtility.printAllGroups(prAssetId, prObjectId, prGeoId, prPartId);
Debug.Log("DONE");
Debug.Log("");
#endif
// TODO: Make this info a permanent UI display.
//if ( prEnableLogging && ( reload_asset || has_geo_changed || has_material_changed ) )
// Debug.Log( "Obj #" + part_control.prObjectId + " (" + part_control.prObjectName + "): "
// + "verts: " + part_info.vertexCount + " faces: " + part_info.faceCount );
if (reload_asset || has_geo_changed)
{
// Initialize our part control.
init(-1, part_info.id, part_info.name);
// Overwrite name.
part_node.name = part_info.name;
if (is_empty)
{
// Add required components.
MeshFilter mesh_filter = getOrCreateComponent <MeshFilter>();
// Get or create mesh.
Mesh part_mesh = mesh_filter.sharedMesh;
if (part_mesh == null)
{
mesh_filter.mesh = new Mesh();
part_mesh = mesh_filter.sharedMesh;
}
part_mesh.Clear();
}
else if (is_mesh) // Valid mesh.
{
// Add required components.
MeshFilter mesh_filter = getOrCreateComponent <MeshFilter>();
// Get or create mesh.
Mesh part_mesh = mesh_filter.sharedMesh;
if (part_mesh == null)
{
mesh_filter.mesh = new Mesh();
part_mesh = mesh_filter.sharedMesh;
}
part_mesh.Clear();
// Get mesh.
try
{
HoudiniAssetUtility.getMesh(
this, part_mesh, prAsset.prGenerateTangents && HoudiniHost.prGenerateTangents);
}
catch (HoudiniErrorIgnorable) {}
catch (HoudiniError error)
{
Debug.LogWarning(error.ToString());
return;
}
// Add collider if group name matches. (Should be added after the mesh is set so that it
// picks up the mesh automagically)
if (part_info.name.Contains(HoudiniHost.prRenderedCollisionGroupName))
{
MeshCollider mesh_collider = getOrCreateComponent <MeshCollider>();
getOrCreateComponent <MeshRenderer>();
mesh_collider.enabled = false;
mesh_collider.enabled = true;
}
else if (part_info.name.Contains(HoudiniHost.prCollisionGroupName))
{
MeshCollider mesh_collider = getOrCreateComponent <MeshCollider>();
mesh_collider.enabled = false;
mesh_collider.enabled = true;
}
else
{
getOrCreateComponent <MeshRenderer>();
}
#if !HAPI_PAINT_SUPPORT
if (myGeoControl.prGeoType == HAPI_GeoType.HAPI_GEOTYPE_INTERMEDIATE)
{
MeshRenderer mesh_renderer = getOrCreateComponent <MeshRenderer>();
MeshCollider mesh_collider = getOrCreateComponent <MeshCollider>();
if (myGeoControl.prGeoAttributeManager)
{
myGeoControl.prGeoAttributeManager.reInit(
part_mesh, mesh_renderer, mesh_collider, transform);
}
mesh_collider.enabled = false;
mesh_collider.enabled = true;
}
#endif // !HAPI_PAINT_SUPPORT
// Add Mesh-to-Prefab component.
HoudiniMeshToPrefab mesh_saver = getOrCreateComponent <HoudiniMeshToPrefab>();
mesh_saver.prGameObject = part_node;
mesh_saver.prMeshName = prAsset.prAssetName + "_" + part_node.name;
}
else if (HoudiniHost.prEnablePointsAsParticles && part_info.vertexCount <= 0 && part_info.pointCount > 0) // Particles?
{
// Get position attributes.
HAPI_AttributeInfo pos_attr_info = new HAPI_AttributeInfo(HoudiniConstants.HAPI_ATTRIB_POSITION);
float[] pos_attr = new float[0];
HoudiniAssetUtility.getAttribute(
prAssetId, prObjectId, prGeoId, prPartId, HoudiniConstants.HAPI_ATTRIB_POSITION,
ref pos_attr_info, ref pos_attr, HoudiniHost.getAttributeFloatData);
if (!pos_attr_info.exists)
{
throw new HoudiniError("No position attribute found.");
}
else if (pos_attr_info.owner != HAPI_AttributeOwner.HAPI_ATTROWNER_POINT)
{
throw new HoudiniErrorIgnorable("I only understand position as point attributes!");
}
// Get colour attributes.
HAPI_AttributeInfo colour_attr_info = new HAPI_AttributeInfo(HoudiniConstants.HAPI_ATTRIB_COLOR);
float[] colour_attr = new float[0];
HoudiniAssetUtility.getAttribute(
prAssetId, prObjectId, prGeoId, prPartId, HoudiniConstants.HAPI_ATTRIB_COLOR,
ref colour_attr_info, ref colour_attr, HoudiniHost.getAttributeFloatData);
ParticleEmitter particle_emitter = part_node.GetComponent <ParticleEmitter>();
if (particle_emitter == null)
{
#if UNITY_4_3 || UNITY_4_4 || UNITY_4_5 || UNITY_4_6
particle_emitter = part_node.AddComponent("EllipsoidParticleEmitter") as ParticleEmitter;
#else
particle_emitter = part_node.AddComponent <EllipsoidParticleEmitter>() as ParticleEmitter;
#endif // UNITY_4_3 || UNITY_4_4 || UNITY_4_5 || UNITY_4_6
}
particle_emitter.ClearParticles();
particle_emitter.emit = false;
particle_emitter.useWorldSpace = true;
particle_emitter.maxSize = 0.06f;
particle_emitter.minSize = 0.02f;
ParticleRenderer renderer = getOrCreateComponent <ParticleRenderer>();
Material mat = new Material(Shader.Find("Particles/Additive (Soft)"));
int width = 20;
int length = 20;
Texture2D tex = new Texture2D(width, length, TextureFormat.RGBA32, false);
for (int x = 0; x < width; ++x)
{
for (int y = 0; y < length; ++y)
{
float dist = (x - 10) * (x - 10) + (y - 10) * (y - 10);
dist = Mathf.Sqrt(dist);
float alpha_f = 1.0f - dist / 10.0f;
Color col = new Color(0.8f, 0.8f, 0.8f, alpha_f);
tex.SetPixel(x, y, col);
}
}
tex.Apply();
mat.mainTexture = tex;
mat.color = new Color(1.0f, 1.0f, 0.5f);
renderer.material = mat;
particle_emitter.Emit(part_info.pointCount);
Particle[] particles = particle_emitter.particles;
if (particle_emitter.particles.Length < part_info.pointCount)
{
Debug.LogWarning("Geo has too many particles. Expected less than "
+ particle_emitter.particles.Length
+ " but found " + part_info.pointCount + ". "
+ " Only using the first "
+ particle_emitter.particles.Length + ".");
}
for (int i = 0; i < particle_emitter.particles.Length; ++i)
{
particles[i].position = new Vector3(pos_attr[i * 3 + 0],
pos_attr[i * 3 + 1],
pos_attr[i * 3 + 2]);
if (colour_attr_info.exists && colour_attr_info.owner == HAPI_AttributeOwner.HAPI_ATTROWNER_POINT)
{
float alpha =
colour_attr_info.tupleSize == 4
? colour_attr[i * colour_attr_info.tupleSize + 3]
: 1.0f;
particles[i].color = new Color(colour_attr[i * colour_attr_info.tupleSize + 0],
colour_attr[i * colour_attr_info.tupleSize + 1],
colour_attr[i * colour_attr_info.tupleSize + 2],
alpha);
}
}
particle_emitter.particles = particles;
}
if (part_info.hasVolume)
{
// Clear previous volume tiles.
destroyChildren(part_node.transform);
// If we have a volume, retrieve the volume info
HAPI_VolumeInfo volume = new HAPI_VolumeInfo();
HoudiniHost.getVolumeInfo(prAssetId, prObjectId, prGeoId, prPartId, ref volume);
// The volume.transform.scale is the voxel size. Both the particle
// delta and the point size are affected by the voxel size.
HoudiniAssetUtility.applyTransform(volume.transform, part_node.transform);
float particle_delta = HoudiniConstants.HAPI_VOLUME_SURFACE_DELTA_MULT * Mathf.Max(Mathf.Max(
volume.transform.scale[0],
volume.transform.scale[1]),
volume.transform.scale[2]);
float point_size = HoudiniConstants.HAPI_VOLUME_SURFACE_PT_SIZE_MULT * particle_delta;
List <Vector3> acc_vertices = new List <Vector3>();
List <Vector3> acc_normals = new List <Vector3>();
float[] values = new float[volume.tileSize * volume.tileSize * volume.tileSize];
int tile_index = 0;
int current_container_particle_index = 0;
// Iterate through the voxels and print out the data, for now.
HAPI_VolumeTileInfo tile = new HAPI_VolumeTileInfo();
HoudiniHost.getFirstVolumeTile(prAssetId, prObjectId, prGeoId, prPartId, ref tile);
while (tile.isValid)
{
for (int i = 0; i < values.Length; ++i)
{
values[i] = 0;
}
HoudiniHost.getVolumeTileFloatData(
prAssetId, prObjectId, prGeoId, prPartId, ref tile, values);
Vector3 tileMin = new Vector3(tile.minX, tile.minY, tile.minZ);
int part_index = 0;
for (int z = 0; z < volume.tileSize; ++z)
{
for (int y = 0; y < volume.tileSize; ++y)
{
for (int x = 0; x < volume.tileSize; ++x)
{
int index = z * volume.tileSize * volume.tileSize + y * volume.tileSize + x;
if (values[index] > -particle_delta && values[index] < particle_delta)
{
// Make sure we have enough room in our arrays.
if (current_container_particle_index
> HoudiniConstants.HAPI_VOLUME_SURFACE_MAX_PT_PER_C)
{
createVolumeTilesObject(
point_size, part_node.transform, acc_vertices, acc_normals);
current_container_particle_index = 0;
acc_vertices.Clear();
acc_normals.Clear();
}
// Get particle position.
Vector3 pos = new Vector3((float)x, (float)y, (float)z);
pos = HoudiniConstants.HAPI_VOLUME_POSITION_MULT * (pos + tileMin);
pos.x = -pos.x;
acc_vertices.Add(part_node.transform.TransformPoint(pos));
// Get particle normal.
int amount = 1;
int sample_count = 0;
Vector3 average_normal = Vector3.zero;
for (int xi = -1; xi <= 1; ++xi)
{
for (int yi = -1; yi <= 1; ++yi)
{
for (int zi = -1; zi <= 1; ++zi)
{
if (xi == 0 && yi == 0 && zi == 0)
{
continue;
}
float result = getVolumeData(
values, volume, particle_delta, x + xi * amount, y + yi * amount, z + zi * amount);
Vector3 normal = Vector3.zero;
if (result < -0.5f)
{
normal = new Vector3(-xi, -yi, -zi);
}
else if (result > 0.5f)
{
normal = new Vector3(xi, yi, zi);
}
else
{
continue;
}
average_normal += normal;
sample_count++;
}
}
}
average_normal /= sample_count;
average_normal.Normalize();
acc_normals.Add(average_normal);
part_index++;
current_container_particle_index++;
}
}
}
}
HoudiniHost.getNextVolumeTile(prAssetId, prObjectId, prGeoId, prPartId, ref tile);
tile_index++;
} // tile iteration
// If we have left-over particles in our arrays we need another container.
createVolumeTilesObject(point_size, part_node.transform, acc_vertices, acc_normals);
} // if has volume
else // Restore part node if previously used to store volume.
{
// Clear previous volume tiles.
destroyChildren(part_node.transform);
part_node.transform.localScale = Vector3.one;
part_node.transform.localPosition = Vector3.zero;
part_node.transform.localRotation = Quaternion.identity;
}
}
// Refresh enabled flags.
if (gameObject.GetComponent <MeshCollider>())
{
gameObject.GetComponent <MeshCollider>().enabled =
prObjectVisible &&
(prAsset.prIsGeoVisible || prGeoType == HAPI_GeoType.HAPI_GEOTYPE_INTERMEDIATE);
}
if (gameObject.GetComponent <MeshRenderer>())
{
gameObject.GetComponent <MeshRenderer>().enabled =
prObjectVisible &&
(prAsset.prIsGeoVisible || prGeoType == HAPI_GeoType.HAPI_GEOTYPE_INTERMEDIATE);
}
// Assign materials.
HoudiniAssetUtility.assignMaterial(this, prAsset, (reload_asset || has_material_changed));
// Assign unity tag.
assignUnityTag();
}