Build instructions pass (#297)

Conforming build instructions with reality capture, fixing up publish
action
to match

Signed-off-by: Jonathan Swartz <jonathan@jswartz.info>

---------

Signed-off-by: Jonathan Swartz <jonathan@jswartz.info>

Author: swahtz

.github/workflows/publish.yml

@@ -58,7 +58,7 @@ jobs:
       matrix:
         python-version: ['3.10', '3.11', '3.12', '3.13']
         torch-version: ['2.8']
-        cuda-version: ['12.9']
+        cuda-version: ['12.8']
     steps:
       - name: Stagger job starts to avoid API rate limits
         run: |
@@ -96,7 +96,7 @@ jobs:
     needs: [start-build-runner, pr-flags] # start when runner is ready and flags computed
     runs-on: ec2-${{ matrix.python-version }}-pt${{ matrix.torch-version }}-cu${{ matrix.cuda-version }}-${{ github.run_id }} # run the job on the newly created runner
     container:
-      image: nvidia/cuda:12.9.0-cudnn-devel-ubuntu22.04
+      image: nvidia/cuda:12.8.1-cudnn-devel-ubuntu22.04
       env:
         PYTHONPATH: ""
         CPM_SOURCE_CACHE: "/__w/cpm_cache"
@@ -154,7 +154,7 @@ jobs:
 
       - name: Install pip dependencies
         run: |
-          # Convert CUDA version from 12.9 to cu129 format for PyTorch index
+          # Convert CUDA version from 12.8 to cu128 format for PyTorch index
           CUDA_TAG="cu$(echo "${{ matrix.cuda-version }}" | tr -d '.')"
           TORCH_VERSION="${{ matrix.torch-version }}"
           echo "Installing PyTorch ${TORCH_VERSION} for ${CUDA_TAG}"

docs/installation.rst

@@ -1,8 +1,8 @@
 Installing fVDB
 ================================================================
 
-fVDB depends on `PyTorch <https://pytorch.org/>`_,
-and requires a CUDA-capable GPU. Below are the supported sofware and hardware configurations.
+fVDB depends on `PyTorch <https://pytorch.org/>`_, and requires a CUDA-capable GPU. Below are the
+supported sofware and hardware configurations.
 
 Software Requirements
 ------------------------
@@ -12,7 +12,7 @@ fVDB is currently supported on the matrix of dependencies in the following table
 +------------------+-----------------+-----------------+----------------+------------------------------------------+
 | Operating System | PyTorch Version | Python Version  | CUDA Version   | Vulkan Version (only for visualization)  |
 +------------------+-----------------+-----------------+----------------+------------------------------------------+
-| Linux Only       | 2.9.0           | 3.10 - 3.13     | 12.8 - 13.0    | 1.3.275.0                                |
+| Linux Only       | 2.8.0           | 3.10 - 3.13     | 12.8           | 1.3.275.0                                |
 +------------------+-----------------+-----------------+----------------+------------------------------------------+
 
 Driver and Hardware Requirements
@@ -30,31 +30,28 @@ The following table specifies the minimum NVIDIA driver versions and GPU archite
 Installation from pre-built wheels
 -------------------------------------
 To get started, run the appropriate pip install command for your Pytorch/CUDA versions. This command will install
-the correct version of `fvdb-core` if it is not already installed.
+the correct version of ``fvdb-core`` if it is not already installed.
 
 
-PyTorch 2.9.0 + CUDA 12.8
+PyTorch 2.8.0 + CUDA 12.8
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 .. code-block:: bash
 
-    pip install fvdb-reality-capture fvdb-core==0.3.0+pt29.cu128 --extra-index-url="https://d36m13axqqhiit.cloudfront.net/simple" torch==2.9.0 --extra-index-url https://download.pytorch.org/whl/cu128
+    pip install fvdb-reality-capture fvdb-core==0.3.0+pt28.cu128 --extra-index-url="https://d36m13axqqhiit.cloudfront.net/simple" torch==2.8.0 --extra-index-url https://download.pytorch.org/whl/cu128
 
 
-PyTorch 2.9.0 + CUDA 13.0
-~~~~~~~~~~~~~~~~~~~~~~~~~~~
-
-.. code-block:: bash
-
-    pip install fvdb-reality-capture fvdb-core==0.3.0+pt29.cu130 --extra-index-url="https://d36m13axqqhiit.cloudfront.net/simple" torch==2.9.0 --extra-index-url https://download.pytorch.org/whl/cu130
 
+Installation from source
+-----------------------------
 
+.. note::
 
+    For more complete instructions including setting up a build enviroment and obtaining the
+    necessary dependencies, see the fVDB `README <https://github.com/openvdb/fvdb-core/blob/main/README.md>`_.
 
-Installation from source
------------------------------
 
-Clone the [fvdb-core repository](https://github.com/openvdb/fvdb-core).
+Clone the `fvdb-core repository <https://github.com/openvdb/fvdb-core>`_.
 
 .. code-block:: bash