add MeshRendererWithFragments to __init__s

Summary: As noticed in https://github.com/facebookresearch/pytorch3d/issues/1098 , it would be useful to make this more available.

Reviewed By: nikhilaravi

Differential Revision: D34752526

fbshipit-source-id: 5a127bd557a0cd626f36bf194f22bc0a0a6a2436

pytorch3d/renderer/__init__.py

@@ -49,6 +49,7 @@ from .mesh import (
     HardPhongShader,
     MeshRasterizer,
     MeshRenderer,
+    MeshRendererWithFragments,
     RasterizationSettings,
     SoftGouraudShader,
     SoftPhongShader,

pytorch3d/renderer/mesh/__init__.py

@@ -13,7 +13,7 @@ from .clip import (
 )
 from .rasterize_meshes import rasterize_meshes
 from .rasterizer import MeshRasterizer, RasterizationSettings
-from .renderer import MeshRenderer
+from .renderer import MeshRenderer, MeshRendererWithFragments
 from .shader import TexturedSoftPhongShader  # DEPRECATED
 from .shader import (
     BlendParams,