Dot output from normal node does work differently in material and rendered viewport shading mode #40795

New Issue

Georg Piorczynski · 2014-06-24T23:14:44+02:00

Georg Piorczynski commented

2014-06-24 23:14:44 +02:00

System Information
Windows 8.1 with Geforxe GTX 560

Blender Version
Broken: 2.71 RC2

Short description of error
As seen in attached blend file the normal direction seems to be flipped between cycles rendering and material shading mode when using the dot product output from the normal node. Normal output seems to work just fie.

Exact steps for others to reproduce the error
Load the attached blend file and just switch viewport shading from "Rendered" to "Material". The red and blue color in the example will be flipped in each mode.

normal.blend

**System Information** Windows 8.1 with Geforxe GTX 560 **Blender Version** Broken: 2.71 RC2 **Short description of error** As seen in attached blend file the normal direction seems to be flipped between cycles rendering and material shading mode when using the dot product output from the normal node. Normal output seems to work just fie. **Exact steps for others to reproduce the error** Load the attached blend file and just switch viewport shading from "Rendered" to "Material". The red and blue color in the example will be flipped in each mode. [normal.blend](https://archive.blender.org/developer/F95482/normal.blend)

Georg Piorczynski commented

2014-06-24 23:14:44 +02:00

Changed status to: 'Open'

Georg Piorczynski commented

2014-06-24 23:14:44 +02:00

Added subscriber: @GeorgPiorczynski

Georg Piorczynski commented

2014-06-25 00:29:18 +02:00

Using a Vector Math node with dot product works as expected

Thomas Dinges commented

2014-06-25 04:52:58 +02:00

Added subscriber: @ThomasDinges

Sergey Sharybin self-assigned this 2014-06-27 21:50:43 +02:00

Sergey Sharybin commented

2014-06-27 21:50:43 +02:00

This is famous normals points inside vs. outside issue. For the compatibility seems we'll need to add some tricks to GLSL shader to make it assume normals points outside for new shading system.

blender-admin commented

2014-06-30 12:24:43 +02:00

This issue was referenced by 7dbedf6d4a

This issue was referenced by 7dbedf6d4ac719d5e452091d82d902cf99c47471

Sergey Sharybin commented

2014-06-30 12:27:43 +02:00

Changed status from 'Open' to: 'Resolved'

Sergey Sharybin closed this issue

2014-06-30 12:27:43 +02:00

Sergey Sharybin commented

2014-06-30 12:27:43 +02:00

Closed by commit 7dbedf6d4a.

Closed by commit 7dbedf6d4a.

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Dot output from normal node does work differently in material and rendered viewport shading mode #40795