Merge pull request #995 from beekama/colored-projector-pattern

fix: integer cast issue for colored projector patterns

blenderproc/python/types/LightUtility.py

@@ -121,6 +121,8 @@ def setup_as_projector(self, pattern: np.ndarray, frame: Optional[int] = None):
         node_ox = nodes.get('Emission')
 
         image_data = bpy.data.images.new('pattern', width=pattern.shape[1], height=pattern.shape[0], alpha=True)
+        if pattern.dtype == np.uint8:
+            pattern = pattern / 255.0    # manual cast to range [0,1] to avoid integer casting issues below
         image_data.pixels = pattern.ravel()
 
         # Set Up Nodes