FLATSPRITE flickering
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	Before asking on how to use a ZDoom feature, read the ZDoom wiki first. This forum is archived - please use this set of forums to ask new questions.
- Jekyll Grim Payne
 - Global Moderator
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 - Joined: Mon Jul 21, 2008 4:08 am
 - Preferred Pronouns: He/Him
 - Graphics Processor: nVidia (Modern GZDoom)
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						FLATSPRITE flickering
		
													
							
						
			
			
			
			
			When I use FLATSPRITE flag, the resulting sprite flickers on the floor, just like in case of clipping textures (e.g. in case of overlapping 3D floors). Is there a way to avoid it?
			
			
									
						
										
						- Graf Zahl
 - Lead GZDoom+Raze Developer

 - Posts: 49252
 - Joined: Sat Jul 19, 2003 10:19 am
 - Location: Germany
 
Re: FLATSPRITE flickering
What GZDoom version?
			
			
									
						
										
						- Jekyll Grim Payne
 - Global Moderator
 - Posts: 1120
 - Joined: Mon Jul 21, 2008 4:08 am
 - Preferred Pronouns: He/Him
 - Graphics Processor: nVidia (Modern GZDoom)
 - Contact:
 
Re: FLATSPRITE flickering
2.2.0; I already see my mistake, it works fine with 3.0.1.
			
			
									
						
										
						- Ivan Llanas
 - Posts: 20
 - Joined: Tue Apr 04, 2017 11:43 am
 
Re: FLATSPRITE flickering
It's still happening. Version 3.0pre-134.
This is what you see looking to a bloody floor when the player heads north:
And this is the same floor when the player heads south:
It's less common than in version 2, but it's still there.
			
			
									
						
										
						This is what you see looking to a bloody floor when the player heads north:
And this is the same floor when the player heads south:
It's less common than in version 2, but it's still there.
- Graf Zahl
 - Lead GZDoom+Raze Developer

 - Posts: 49252
 - Joined: Sat Jul 19, 2003 10:19 am
 - Location: Germany
 
Re: FLATSPRITE flickering
What graphics hardware?
			
			
									
						
										
						- Ivan Llanas
 - Posts: 20
 - Joined: Tue Apr 04, 2017 11:43 am
 
Re: FLATSPRITE flickering
NVIDIA GeForce GTX 1060 6Gb
GZDoom rendering output settings:
Hardware Acceleration OpenGL-Accelerated
Software Truecolor Mode On
Poly Renderer Off
Sofware Canvas Direct3D
			
			
									
						
										
						GZDoom rendering output settings:
Hardware Acceleration OpenGL-Accelerated
Software Truecolor Mode On
Poly Renderer Off
Sofware Canvas Direct3D
- Ivan Llanas
 - Posts: 20
 - Joined: Tue Apr 04, 2017 11:43 am
 
Re: FLATSPRITE flickering
One detail, if it means anything to you: standing over all that blood, it is correctly displayed when the player has an angle from 340º to 200º aprox. And from 200º to 340º the blood flickers.
			
			
									
						
										
						Re: FLATSPRITE flickering
I wish GZDoom would implement a proper flat decal drawer in future... 
			
			
									
						
										
						- Ivan Llanas
 - Posts: 20
 - Joined: Tue Apr 04, 2017 11:43 am
 
Re: FLATSPRITE flickering
I vote for this.
Twice!
			
			
									
						
										
						Twice!