Cage Extrusion (Normal Map Bake) doesn't remove Edge Split Modifier #64055

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Ingmar Franz · 2019-05-01T11:06:52+02:00

Ingmar Franz commented

2019-05-01 11:06:52 +02:00

Blender 2.8Beta, 2019-04-30, 22cc69ace8, Windows 64Bit

See attached file: NormalBake_CageExtrusion_EdgeSplitModifierNotRemoved.blend

According to the Blender 2.8 manual, cage extrusion should remove the Edge Split Modifier:

Cage Extrusion
Distance to use for the inward ray cast when using Selected to Active and Cage. The inward rays are casted from a version of 
the active object with disabled Edge Split Modifiers. Hard splits (e.g. when the Edge Split Modifier is applied) should be avoided
because they will lead to non-smooth normals around the edges.

This is not the case.

Open the attached blend-file and hit "bake"
Uncheck "Edge Angle" in the Edge Split Modifier and bake again ("Sharp Edges" stays unchecked since edges marked as sharp affect the cage extrusion already without the Edge Split Modifier)
The baked maps differ where the sharp edge (defined only by the face angle threshold of the modifier) is (see image file)

Blender 2.8Beta, 2019-04-30, 22cc69ace8d4, Windows 64Bit See attached file: [NormalBake_CageExtrusion_EdgeSplitModifierNotRemoved.blend](https://archive.blender.org/developer/F6998218/NormalBake_CageExtrusion_EdgeSplitModifierNotRemoved.blend) According to the Blender 2.8 manual, cage extrusion should remove the Edge Split Modifier: > Cage Extrusion > > Distance to use for the inward ray cast when using Selected to Active and Cage. The inward rays are casted from a version of > the active object with disabled Edge Split Modifiers. Hard splits (e.g. when the Edge Split Modifier is applied) should be avoided > because they will lead to non-smooth normals around the edges. This is not the case. 1) Open the attached blend-file and hit "bake" 2) Uncheck "Edge Angle" in the Edge Split Modifier and bake again ("Sharp Edges" stays unchecked since edges marked as sharp affect the cage extrusion already without the Edge Split Modifier) 3) The baked maps differ where the sharp edge (defined only by the face angle threshold of the modifier) is (see image file) ![Normal_EdgeSplitModifier.png](https://archive.blender.org/developer/F6998226/Normal_EdgeSplitModifier.png)

Ingmar Franz commented

2019-05-01 11:06:52 +02:00

Added subscriber: @IngmarFranz

Dalai Felinto was assigned by Sebastian Parborg

2019-05-02 17:34:24 +02:00

Dalai Felinto commented

2019-07-12 15:06:30 +02:00

Changed status from 'Open' to: 'Resolved'

Dalai Felinto closed this issue

2019-07-12 15:06:30 +02:00

Dalai Felinto commented

2019-07-12 15:06:30 +02:00

@IngmarFranz cage baking was fixed recently, and from my tests the edgesplit modifier is effectively being removed.
From your file the baking result is still a bit different when enabling/disabling the sharp edge setting but that is because this affects the low poly mesh (though not its cage).

@IngmarFranz cage baking was fixed recently, and from my tests the edgesplit modifier is effectively being removed. From your file the baking result is still a bit different when enabling/disabling the sharp edge setting but that is because this affects the low poly mesh (though not its cage).

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Cage Extrusion (Normal Map Bake) doesn't remove Edge Split Modifier #64055