expanded documentation 📜

openpype/hosts/houdini/plugins/create/create_pointcache.py

@@ -39,6 +39,7 @@ class CreatePointCache(plugin.Creator):
             parms.update({"sop_path": node.path()})
 
         instance.setParms(parms)
+        instance.parm("trange").set(1)
 
         # Lock any parameters in this list
         to_lock = ["prim_to_detail_pattern"]

openpype/hosts/houdini/plugins/create/create_usdrender.py

@@ -17,7 +17,7 @@ class CreateUSDRender(plugin.Creator):
         # Remove the active, we are checking the bypass flag of the nodes
         self.data.pop("active", None)
 
-        self.data.update({"node_type": "usdrender_rop"})
+        self.data.update({"node_type": "usdrender"})
 
     def _process(self, instance):
         """Creator main entry point.
@@ -30,6 +30,9 @@ class CreateUSDRender(plugin.Creator):
             # Render frame range
             "trange": 1
         }
+        if self.nodes:
+            node = self.nodes[0]
+            parms.update({"loppath": node.path()})
         instance.setParms(parms)
 
         # Lock some Avalon attributes

openpype/hosts/houdini/plugins/create/create_vbd_cache.py

@@ -28,6 +28,7 @@ class CreateVDBCache(plugin.Creator):
         parms = {
             "sopoutput": "$HIP/pyblish/%s.$F4.vdb" % self.name,
             "initsim": True,
+            "trange": 1
         }
 
         if self.nodes:

website/docs/artist_hosts_houdini.md

@@ -13,14 +13,66 @@ sidebar_label: Houdini
 - [Publish](artist_tools.md#publisher)
 - [Library Loader](artist_tools.md#library-loader)
 
-## Publishing
+## Publishing Alembic Cameras
-### Publishing Alembic Cameras
 You can publish baked camera in Alembic format. Select your camera and go **OpenPype -> Create** and select **Camera (abc)**.
-This will create Alembic Driver node in **out** with path and frame range already set. This node will have a name you've
+This will create Alembic ROP in **out** with path and frame range already set. This node will have a name you've
 assigned in the **Creator** menu. For example if you name the subset `Default`, output Alembic Driver will be named
 `cameraDefault`. After that, you can **OpenPype -> Publish** and after some validations your camera will be published
 to `abc` file.
 
-### Composite - Image Sequence
+## Publishing Composites - Image Sequences
 You can publish image sequence directly from Houdini. You can use any `cop` network you have and publish image
-sequence generated from it.
+sequence generated from it. For example I've created simple **cop** graph to generate some noise:
+![Noise COP](assets/houdini_imagesequence_cop.png)
+
+If I want to publish it, I'll select node I like - in this case `radialblur1` and go **OpenPype -> Create** and
+select **Composite (Image Sequence)**. This will create `/out/imagesequenceNoise` Composite ROP (I've named my subset
+*Noise*) with frame range set. When you hit **Publish** it will render image sequence from selected node.
+
+## Publishing Point Caches (alembic)
+Publishing point caches in alembic format is pretty straightforward, but it is by default enforcing better compatibility
+with other DCCs, so it needs data do be exported prepared in certain way. You need to add `path` attribute so objects
+in alembic are better structured. When using alembic round trip in Houdini (loading alembics, modifying then and
+then publishing modifications), `path` is automatically resolved by alembic nodes.
+
+In this example, I've created this node graph on **sop** level, and I want to publish it as point cache.
+
+![Pointcache setup](assets/houdini_pointcache_path.png)
+
+*Note: `connectivity` will add index for each primitive and `primitivewrangle1` will add `path` attribute, so it will
+be for each primitive (`sphere1` and `sphere2`) as Maya is expecting - `strange_GRP/strange0_GEO/strange0_GEOShape`. How
+you handle `path` attribute is up to you, this is just an example.*
+
+Now select the `output0` node and go **OpenPype -> Create** and select **Point Cache**. It will create
+Alembic ROP `/out/pointcacheStrange`
+
+
+## Redshift
+:::note Work in progress
+This part of documentation is still work in progress.
+:::
+
+## USD
+### Publishing USD
+You can publish your Solaris Stage as USD file.
+![Solaris USD](assets/houdini_usd_stage.png)
+
+This is very simple test stage. I've selected `output` **lop** node and went to **OpenPype -> Create** where I've
+selected **USD**. This created `/out/usdDefault` USD ROP node.
+
+### Publishing USD render
+
+USD Render works in similar manner as USD file, except it will create **USD Render** ROP node in out and will publish
+images produced by it. If you have selected node in Solaris Stage it will by added as **lop path** to ROP.
+
+## Publishing VDB
+
+Publishing VDB files works as with other data types. In this example I've created simple PyroFX explosion from
+sphere. In `pyro_import` I've converted the volume to VDB:
+
+![VDB Setup](assets/houdini_vdb_setup.png)
+
+I've selected `vdb1` and went **OpenPype -> Create** and selected **VDB Cache**. This will create
+geometry ROP in `/out` and sets its paths to output vdb files. During the publishing process
+whole dops are cooked.
+