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4.11p1 tessellated materials don't compile or render

Branch: binary Build version: 4.11.0-2810555+++UE4+Release-4.11

Problem 1. Any new or existing material with tessellation enabled from a converted 4.10 project fails to compile with error messages: MaterialEditorStats:Error: Error [SM5] DepthOnlyVertexShader.usf(140,29): error X3018: invalid subscript 'EyeIndex' MaterialEditorStats:Error: Error [SM5] BasePassVertexShader.usf(86,29): error X3018: invalid subscript 'EyeIndex'

Problem 2. Any new or existing material in a newly created 4.11p1 project fails to render without shader compiler error message:

Steps to reproduce (Problem 2):

  1. Launch 4.11p1

  2. Create a blank BluePrint project with starter content

  3. Edit the M_Chair starter content to enable tessellation and save -> no shader error message, but the chair doesn't render.

  4. Create a new material, give it a visible base color and save, then enable tessellation and save -> no shader error messge, but the material preview is blank.

Product Version: UE 4.11 Preview
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asked Dec 23 '15 at 04:43 PM in Bug Reports

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Hello joe.real,

I have tested this issue and have verified that this is a bug with 4.11p1. Internally, this issue appear to be fixed.

I have entered bug for this issue. The bug number is UE-24773.

I do not have an ETA for when this will be fixed. Thank you very much for reporting this issue to us.


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answered Dec 23 '15 at 07:13 PM

avatar image Logan Bailey ♦♦ STAFF Jan 14 '16 at 06:35 PM

I have verified this is fixed as of the latest version of 4.11.

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