Wireframe controlled by gpencil thickness #47396

New Issue

Mikhail Rachinskiy · 2016-02-11T19:29:59+01:00

2016-02-11 19:29:59 +01:00

System Information
Windows 8.1 x64
Renderer: GeForce GTX 860M/PCIe/SSE2

Blender Version
Broken: 2.76.11 3ab50cf

Short description of error
Wireframe controlled by gpencil thickness with Full Sample enabled, unless there is a “special” object in the scene. Example scene contains: Text, Metaball, Curve and Mesh objects, and one gpencil layer.

Solid View:
- Metabal issue
- But if I add Surface, Lattice, Camera, Lamp, Armature or Empty objects, everything is fine
Wireframe view:
- Metabal and Text issue
- If I add Surface, Lattice, Camera, Lamp, Armature or Empty objects, everything is fine
Bounding Box view:
- Issue with all objects, including “special” objects that have bounding box draw type, inculing: Surface, Lattice and Armature
- If I add Camera, Lamp or Empty objects that do not have bounding box draw type, everything is fine
Solid View, with some objects draw type set to bounding box :
- Every bounding box drawing object have an issue
- If I add Surface, Lattice, Camera, Lamp, Armature or Empty objects, everything is fine

What's going on guys? Why it's soooo much inconsistent? You hardcoded draw variables for every object/draw type individually or something?

Exact steps for others to reproduce the error

Open blend file edge_thickness.blend
Use OpenGL renderer

**System Information** Windows 8.1 x64 Renderer: GeForce GTX 860M/PCIe/SSE2 **Blender Version** Broken: 2.76.11 3ab50cf **Short description of error** Wireframe controlled by gpencil thickness with `Full Sample` enabled, unless there is a “special” object in the scene. Example scene contains: `Text`, `Metaball`, `Curve` and `Mesh` objects, and one `gpencil` layer. - Solid View: - `Metabal` issue ![s_1.png](https://archive.blender.org/developer/F282151/s_1.png) - But if I add `Surface`, `Lattice`, `Camera`, `Lamp`, `Armature` or `Empty` objects, everything is fine ![s_2.png](https://archive.blender.org/developer/F282154/s_2.png) - Wireframe view: - `Metabal` and `Text` issue ![w_1.png](https://archive.blender.org/developer/F282157/w_1.png) - If I add `Surface`, `Lattice`, `Camera`, `Lamp`, `Armature` or `Empty` objects, everything is fine ![w_2.png](https://archive.blender.org/developer/F282161/w_2.png) - Bounding Box view: - Issue with all objects, including “special” objects that have bounding box draw type, inculing: `Surface`, `Lattice` and `Armature` ![b_1.png](https://archive.blender.org/developer/F282163/b_1.png) - If I add `Camera`, `Lamp` or `Empty` objects that do not have bounding box draw type, everything is fine ![b_3.png](https://archive.blender.org/developer/F282165/b_3.png) - Solid View, with some objects draw type set to bounding box : - Every bounding box drawing object have an issue ![sb_1.png](https://archive.blender.org/developer/F282168/sb_1.png) - If I add `Surface`, `Lattice`, `Camera`, `Lamp`, `Armature` or `Empty` objects, everything is fine ![sb_2.png](https://archive.blender.org/developer/F282170/sb_2.png) What's going on guys? Why it's soooo much inconsistent? You hardcoded draw variables for every object/draw type individually or something? **Exact steps for others to reproduce the error** - Open blend file [edge_thickness.blend](https://archive.blender.org/developer/F282150/edge_thickness.blend) - Use OpenGL renderer

Mikhail Rachinskiy commented

2016-02-11 19:29:59 +01:00

Changed status to: 'Open'

Julian Eisel was assigned by Mikhail Rachinskiy

2016-02-11 19:29:59 +01:00

Mikhail Rachinskiy commented

2016-02-11 19:29:59 +01:00

Added subscriber: @MikhailRachinskiy

blender-admin commented

2016-02-11 21:00:27 +01:00

This issue was referenced by e8d7a0206e

This issue was referenced by e8d7a0206e994786e2556699d13d54e9517bcbb9

Julian Eisel commented

2016-02-11 21:01:17 +01:00

Changed status from 'Open' to: 'Resolved'

Julian Eisel closed this issue

2016-02-11 21:01:17 +01:00

Julian Eisel commented

2016-02-11 21:10:46 +01:00

This is because OpenGL works context based. You set the line width for drawing and as long as it's not set to a different value it keeps drawing with this line width. If you add a surface, lattice, camera, ... object, the line width is reset to 1 before the metaball, font or whatever is drawn.
Previously the convention was to simply reset the line width after stuff was drawn that needed a thicker line width. To minimize calls for the glLineWidth function blender/blender-staging@e25ba162c0 changed this convention so that we just set the desired line width before drawing without worrying about resetting.

This is because OpenGL works context based. You set the line width for drawing and as long as it's not set to a different value it keeps drawing with this line width. If you add a surface, lattice, camera, ... object, the line width is reset to 1 before the metaball, font or whatever is drawn. Previously the convention was to simply reset the line width after stuff was drawn that needed a thicker line width. To minimize calls for the glLineWidth function blender/blender-staging@e25ba162c0 changed this convention so that we just set the desired line width before drawing without worrying about resetting.

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Wireframe controlled by gpencil thickness #47396