Blender Game engine renders mesh incorrectly, and does not render textures. #53181

New Issue

Eagle Gamma · 2017-10-27T14:54:04+02:00

Eagle Gamma commented

2017-10-27 14:54:04 +02:00

System Information
Windows 10
Intel HD Graphics
HP Stream

Blender Version
Broken: 2.79 (Release Candidate)

Short description of error
Worm gear meshes in Blender Game Engine appear to render without many vertices, and without texture, when running the player. Rendering the same model in the viewport works fine. What is causing this? Is BGE supposed to render all vertices and textures?

Also, text with extruded depth, and texture, gets rendered as 2D text without extrusion or texture. Is this the same problem, or something else?

Exact steps for others to reproduce the error

Start standalone game player.

The mesh does not render the same as in the model. You can also render the model in the viewport and it should show fine, although the same mesh does not render correctly in the game.

Also, the text is flat, and the text and mesh don't get textures.

LMB-test-2.blend

**System Information** Windows 10 Intel HD Graphics HP Stream **Blender Version** Broken: 2.79 (Release Candidate) **Short description of error** Worm gear meshes in Blender Game Engine appear to render without many vertices, and without texture, when running the player. Rendering the same model in the viewport works fine. What is causing this? Is BGE supposed to render all vertices and textures? Also, text with extruded depth, and texture, gets rendered as 2D text without extrusion or texture. Is this the same problem, or something else? ![Blender Game Engine render issues.png](https://archive.blender.org/developer/F1069670/Blender_Game_Engine_render_issues.png) **Exact steps for others to reproduce the error** 1. Start standalone game player. The mesh does not render the same as in the model. You can also render the model in the viewport and it should show fine, although the same mesh does not render correctly in the game. Also, the text is flat, and the text and mesh don't get textures. [LMB-test-2.blend](https://archive.blender.org/developer/F1069675/LMB-test-2.blend)

Eagle Gamma commented

2017-10-27 14:54:05 +02:00

Changed status to: 'Open'

Eagle Gamma commented

2017-10-27 14:54:05 +02:00

Added subscriber: @eaglegamma

ronan ducluzeau commented

2017-10-29 14:48:05 +01:00

Added subscriber: @zeauro

ronan ducluzeau commented

2017-10-29 14:48:05 +01:00

Changed status from 'Open' to: 'Archived'

ronan ducluzeau closed this issue

2017-10-29 14:48:05 +01:00

ronan ducluzeau self-assigned this 2017-10-29 14:48:05 +01:00

ronan ducluzeau commented

2017-10-29 14:48:06 +01:00

You are not facing bugs but known limitations of Blender Game Engine.

First, BGE is re-using Viewport Shading Mode used by 3D View.
Your objects are white because 3DView is set to Solid mode. It is not the case if set them to Material Mode.

Some parts of meshes are invisible because Backface Culling is enabled by default in material properties of objects. But it is not used by default 3DView display.
So you can enable Backface Culling in Display panel of 3DView properties (N column). And then, you will see meshes displayed as in BGE.
You can flip normals of faces of meshes in Edit Mode. Or you can disable Backface Culling in material properties under Game Settings panel.

BGE does not support procedurals textures. You have to bake these textures to UVmaps to obtain same render inside BGE.

And finally, 3D text objects like bevelled curves are not supported by BGE.
These objects can corresponds to lots of faces according to how their resolution is set. You have to convert them to meshes to use them as 3D objects.
But because Text objects are useful to write interactively texts.
There is an automatic conversion from 3D text to 2D fonts.

This corresponds to large amount of limitations that are making game creation process unintuitive.
One Goal of future 2.8 series is to make things a lot easier. With EEVEE and UpBGE, process should be WYSIWYG .

I know that all these things are not obvious when reading documentation. Making a game is a long process.
So, the best way to achieve your goal is to ask help to community through different channels.

But it is not the goal of developer.blender.org dedicated to bugtracking.

For general issues, check on support sites such as:

  http://blender.stackexchange.com
  https://blenderartists.org/forum/forumdisplay.php?7-Support

If you still think you have found a bug, please give exact steps to redo the error.

You are not facing bugs but known limitations of Blender Game Engine. First, BGE is re-using Viewport Shading Mode used by 3D View. Your objects are white because 3DView is set to Solid mode. It is not the case if set them to Material Mode. Some parts of meshes are invisible because Backface Culling is enabled by default in material properties of objects. But it is not used by default 3DView display. So you can enable Backface Culling in Display panel of 3DView properties (N column). And then, you will see meshes displayed as in BGE. You can flip normals of faces of meshes in Edit Mode. Or you can disable Backface Culling in material properties under Game Settings panel. BGE does not support procedurals textures. You have to bake these textures to UVmaps to obtain same render inside BGE. And finally, 3D text objects like bevelled curves are not supported by BGE. These objects can corresponds to lots of faces according to how their resolution is set. You have to convert them to meshes to use them as 3D objects. But because Text objects are useful to write interactively texts. There is an automatic conversion from 3D text to 2D fonts. This corresponds to large amount of limitations that are making game creation process unintuitive. One Goal of future 2.8 series is to make things a lot easier. With EEVEE and UpBGE, process should be WYSIWYG . I know that all these things are not obvious when reading documentation. Making a game is a long process. So, the best way to achieve your goal is to ask help to community through different channels. But it is not the goal of developer.blender.org dedicated to bugtracking. For general issues, check on support sites such as: ``` http://blender.stackexchange.com https://blenderartists.org/forum/forumdisplay.php?7-Support ``` If you still think you have found a bug, please give exact steps to redo the error. ```

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Blender Game engine renders mesh incorrectly, and does not render textures. #53181