Updated Colab to Python3.9 and added colmap install speedup. (#1587)

colab/demo.ipynb

@@ -7,7 +7,7 @@
         "colab_type": "text"
       },
       "source": [
-        "<a href=\"https://colab.research.google.com/github/nerfstudio-project/nerfstudio/blob/alex%2Fcolab_tinycuda_update/colab/demo.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
+        "<a href=\"https://colab.research.google.com/github/nerfstudio-project/nerfstudio/blob/alex%2Fcolab_py3.9/colab/demo.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
       ]
     },
     {
@@ -65,43 +65,12 @@
       "cell_type": "code",
       "execution_count": null,
       "metadata": {
-        "colab": {
-          "base_uri": "https://localhost:8080/"
-        },
-        "id": "RGr33zHaHak0",
-        "outputId": "6ad38334-22d2-4675-bffb-0bae91b17577"
-      },
-      "outputs": [
-        {
-          "output_type": "stream",
-          "name": "stdout",
-          "text": [
-            "⏬ Downloading https://github.com/jaimergp/miniforge/releases/latest/download/Mambaforge-colab-Linux-x86_64.sh...\n",
-            "📦 Installing...\n",
-            "📌 Adjusting configuration...\n",
-            "🩹 Patching environment...\n",
-            "⏲ Done in 0:00:18\n",
-            "🔁 Restarting kernel...\n"
-          ]
-        }
-      ],
-      "source": [
-        "#@markdown <h1>Install Conda (requires runtime restart)</h1>\n",
-        "\n",
-        "!pip install -q condacolab\n",
-        "import condacolab\n",
-        "condacolab.install()"
-      ]
-    },
-    {
-      "cell_type": "code",
-      "execution_count": null,
-      "metadata": {
-        "id": "9oyLHl8QfYwP"
+        "id": "9oyLHl8QfYwP",
+        "cellView": "form"
       },
       "outputs": [],
       "source": [
-        "#@markdown <h1>Install Nerfstudio and Dependencies (~15 min)</h1>\n",
+        "#@markdown <h1>Install Nerfstudio and Dependencies (~8 min)</h1>\n",
         "\n",
         "%cd /content/\n",
         "!pip install --upgrade pip\n",
@@ -109,18 +78,37 @@
         "\n",
         "# Installing TinyCuda\n",
         "%cd /content/\n",
-        "!gdown \"https://drive.google.com/u/1/uc?id=12RL_NVgE9WGvr_fEsXEiuaJ1QESvQCPl&confirm=t\" \n",
-        "!pip install tinycudann-1.7-cp38-cp38-linux_x86_64.whl\n",
+        "!gdown \"https://drive.google.com/u/1/uc?id=1LlL2ofrViALsqE789MFGZeJyxkNu84cT&confirm=t\" \n",
+        "!pip install tinycudann-1.7-cp39-cp39-linux_x86_64.whl\n",
         "\n",
         "# Installing COLMAP\n",
         "%cd /content/\n",
-        "!conda install -c conda-forge colmap\n",
+        "!gdown \"https://drive.google.com/u/0/uc?id=15WngFRNar_b8CaPR5R-hvQ3eAnlyk_SL&confirm=t\"\n",
+        "!sudo apt-get install \\\n",
+        "    build-essential \\\n",
+        "    libboost-program-options-dev \\\n",
+        "    libboost-filesystem-dev \\\n",
+        "    libboost-graph-dev \\\n",
+        "    libboost-system-dev \\\n",
+        "    libboost-test-dev \\\n",
+        "    libeigen3-dev \\\n",
+        "    libflann-dev \\\n",
+        "    libfreeimage-dev \\\n",
+        "    libmetis-dev \\\n",
+        "    libgoogle-glog-dev \\\n",
+        "    libgflags-dev \\\n",
+        "    libsqlite3-dev \\\n",
+        "    libglew-dev \\\n",
+        "    qtbase5-dev \\\n",
+        "    libqt5opengl5-dev \\\n",
+        "    libcgal-dev \\\n",
+        "    libceres-dev\n",
+        "!unzip local.zip -d /usr/\n",
+        "!chmod +x /usr/local/bin/colmap\n",
         "\n",
         "# Install nerfstudio\n",
         "%cd /content/\n",
-        "# !pip install nerfstudio\n",
-        "!pip install git+https://github.com/nerfstudio-project/nerfstudio.git\n",
-        "!conda remove --force qt-main"
+        "!pip install git+https://github.com/nerfstudio-project/nerfstudio.git"
       ]
     },
     {