Flickering shadows in BGE #50290

New Issue

Nikita · 2016-12-22T05:44:48+01:00

Nikita commented

2016-12-22 05:44:48 +01:00

System Information
OS: Windows 10 Pro
CPU: AMD FX(tm)-8320 Eight-Core Processor 3.5GHz
Memory: 8.0 GB RAM
Video Card: GeForce GTX 950

Blender Version
Broken: (=<2.78)
Worked: (>2.78)

Short description of error
Flickering shadows in game engine when a camera is set to a 90 or -90 degree angle on the x or y axis, and is rotating and/or moving in-game.

Exact steps for others to reproduce the error
(SHADING MUST BE SET TO GLSL as well as Blender Game should be chosen for rendering)

Set camera to a 90 degree angle on the x or y axis and give it some movement properties in game logic tab (doesn't matter at what speed).

I am pretty sure that any angles that are made up with 90 (such as -180, -90, 90, 180, and etc.) cause the flickering problem
All other angles work perfectly fine even if you try 89.9 it works.

Add a light source and turn on the shadow properties.
Add a plane and a box to represent some sort of shadow (you might need to give it a material so they would be visible in real-time)
Go into the camera view and start game engine (press p)
Shadows from the light source should be flickering when the camera is moving.

.blend file:
BUG.blend

**System Information** OS: Windows 10 Pro CPU: AMD FX(tm)-8320 Eight-Core Processor 3.5GHz Memory: 8.0 GB RAM Video Card: GeForce GTX 950 **Blender Version** Broken: (=<2.78) Worked: (>2.78) **Short description of error** Flickering shadows in game engine when a camera is set to a 90 or -90 degree angle on the x or y axis, and is rotating and/or moving in-game. **Exact steps for others to reproduce the error** (SHADING MUST BE SET TO GLSL as well as Blender Game should be chosen for rendering) 1. Set camera to a 90 degree angle on the x or y axis and give it some movement properties in game logic tab (doesn't matter at what speed). - I am pretty sure that any angles that are made up with 90 (such as -180, -90, 90, 180, and etc.) cause the flickering problem - All other angles work perfectly fine even if you try 89.9 it works. 2. Add a light source and turn on the shadow properties. 3. Add a plane and a box to represent some sort of shadow (you might need to give it a material so they would be visible in real-time) 4. Go into the camera view and start game engine (press p) 5. Shadows from the light source should be flickering when the camera is moving. .blend file: [BUG.blend](https://archive.blender.org/developer/F421228/BUG.blend)

Nikita commented

2016-12-22 05:44:49 +01:00

Changed status to: 'Open'

Nikita commented

2016-12-22 05:44:49 +01:00

Added subscriber: @j3rry

Joey Ferwerda commented

2017-02-02 10:38:00 +01:00

Added subscriber: @TheOnlyJoey

Joey Ferwerda commented

2017-02-02 10:38:00 +01:00

Changed status from 'Open' to: 'Archived'

Joey Ferwerda closed this issue

2017-02-02 10:38:00 +01:00

Joey Ferwerda self-assigned this 2017-02-02 10:38:00 +01:00

Joey Ferwerda commented

2017-02-02 10:38:00 +01:00

This is a common issue in real time rendering.
Right angle lighting and shadow generation are difficult and need specific fixes to be able to work.

This is not a regression from previous versions and we currently don't do BGE updates, i would recommend sending this bug report to UPBGE https://github.com/UPBGE/blender and see if they can do something with it.

Closing

This is a common issue in real time rendering. Right angle lighting and shadow generation are difficult and need specific fixes to be able to work. This is not a regression from previous versions and we currently don't do BGE updates, i would recommend sending this bug report to UPBGE https://github.com/UPBGE/blender and see if they can do something with it. Closing

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Flickering shadows in BGE #50290