If you use Screen.DrawShape, and pass in a DTA_Alpha, it will not change, even if the alpha value changes between frames.
Here is a small example. To run it, just start a game on any map with any IWAD. The squares at each corner should fade in to full opacity, but they don't.
I've noticed this issue with the OpenGL, Vulkan, AND Softpoly renderers BTW.
Screen.DrawShape alpha remains constant
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Please construct and post a simple demo whenever possible for all bug reports. Please provide links to everything.
If you can include a wad demonstrating the problem, please do so. Bug reports that include fully-constructed demos have a much better chance of being investigated in a timely manner than those that don't.
Please make a new topic for every bug. Don't combine multiple bugs into a single topic. Thanks!
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Screen.DrawShape alpha remains constant
by Talon1024 » Wed Jan 13, 2021 1:32 am
- Talon1024
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- Joined: 27 Jun 2016
- Github ID: Talon1024
- Operating System: Debian-like Linux (Debian, Ubuntu, Kali, Mint, etc) 64-bit
- Graphics Processor: nVidia with Vulkan support
Re: Screen.DrawShape alpha remains constant
by Major Cooke » Wed Jan 13, 2021 9:12 pm
Yeah I noticed this too earlier today. Was preparing to make an example but you beat me to it.
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Major Cooke - QZDoom Maintenance Team
- Joined: 28 Jan 2007
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