Fix spelling of "Gouraud"

Summary: Fix spelling of *Gouraud* in [Gouraud shading](https://en.wikipedia.org/wiki/Gouraud_shading).

Reviewed By: nikhilaravi

Differential Revision: D19943547

fbshipit-source-id: 5c016b7b051a7b33a7b68ed5303b642d9e834bbd

pytorch3d/renderer/__init__.py

@@ -18,16 +18,16 @@ from .lighting import DirectionalLights, PointLights, diffuse, specular
 from .materials import Materials
 from .mesh import (
     HardFlatShader,
-    HardGouradShader,
+    HardGouraudShader,
     HardPhongShader,
     MeshRasterizer,
     MeshRenderer,
     RasterizationSettings,
-    SoftGouradShader,
+    SoftGouraudShader,
     SoftPhongShader,
     SoftSilhouetteShader,
     TexturedSoftPhongShader,
-    gourad_shading,
+    gouraud_shading,
     interpolate_face_attributes,
     interpolate_texture_map,
     interpolate_vertex_colors,

pytorch3d/renderer/mesh/__init__.py

@@ -5,14 +5,14 @@ from .rasterizer import MeshRasterizer, RasterizationSettings
 from .renderer import MeshRenderer
 from .shader import (
     HardFlatShader,
-    HardGouradShader,
+    HardGouraudShader,
     HardPhongShader,
-    SoftGouradShader,
+    SoftGouraudShader,
     SoftPhongShader,
     SoftSilhouetteShader,
     TexturedSoftPhongShader,
 )
-from .shading import gourad_shading, phong_shading
+from .shading import gouraud_shading, phong_shading
 from .texturing import (  # isort: skip
     interpolate_face_attributes,
     interpolate_texture_map,

pytorch3d/renderer/mesh/shader.py

@@ -14,7 +14,7 @@ from ..blending import (
 from ..cameras import OpenGLPerspectiveCameras
 from ..lighting import PointLights
 from ..materials import Materials
-from .shading import flat_shading, gourad_shading, phong_shading
+from .shading import flat_shading, gouraud_shading, phong_shading
 from .texturing import interpolate_texture_map, interpolate_vertex_colors
 
 # A Shader should take as input fragments from the output of rasterization
@@ -126,7 +126,7 @@ class SoftPhongShader(nn.Module):
         return images
 
 
-class HardGouradShader(nn.Module):
+class HardGouraudShader(nn.Module):
     """
     Per vertex lighting - the lighting model is applied to the vertex colors and
     the colors are then interpolated using the barycentric coordinates to
@@ -138,7 +138,7 @@ class HardGouradShader(nn.Module):
 
     .. code-block::
 
-        shader = HardGouradShader(device=torch.device("cuda:0"))
+        shader = HardGouraudShader(device=torch.device("cuda:0"))
     """
 
     def __init__(self, device="cpu", cameras=None, lights=None, materials=None):
@@ -159,7 +159,7 @@ class HardGouradShader(nn.Module):
         cameras = kwargs.get("cameras", self.cameras)
         lights = kwargs.get("lights", self.lights)
         materials = kwargs.get("materials", self.materials)
-        pixel_colors = gourad_shading(
+        pixel_colors = gouraud_shading(
             meshes=meshes,
             fragments=fragments,
             lights=lights,
@@ -170,7 +170,7 @@ class HardGouradShader(nn.Module):
         return images
 
 
-class SoftGouradShader(nn.Module):
+class SoftGouraudShader(nn.Module):
     """
     Per vertex lighting - the lighting model is applied to the vertex colors and
     the colors are then interpolated using the barycentric coordinates to
@@ -182,7 +182,7 @@ class SoftGouradShader(nn.Module):
 
     .. code-block::
 
-        shader = SoftGouradShader(device=torch.device("cuda:0"))
+        shader = SoftGouraudShader(device=torch.device("cuda:0"))
     """
 
     def __init__(
@@ -213,7 +213,7 @@ class SoftGouradShader(nn.Module):
         cameras = kwargs.get("cameras", self.cameras)
         lights = kwargs.get("lights", self.lights)
         materials = kwargs.get("materials", self.materials)
-        pixel_colors = gourad_shading(
+        pixel_colors = gouraud_shading(
             meshes=meshes,
             fragments=fragments,
             lights=lights,

pytorch3d/renderer/mesh/shading.py

@@ -79,7 +79,7 @@ def phong_shading(
     return colors
 
 
-def gourad_shading(
+def gouraud_shading(
     meshes, fragments, lights, cameras, materials
 ) -> torch.Tensor:
     """