Mstn CE Update 11--Visual disturbance

Question

Hi, 
 I was doing an "extend line" command in a 2D file when this suddenly appeared. What would cause it, and how do I debug it? 
 It corrected itself when I did a refresh view. The black dots appeared as I moved my mouse. I'm using an AMD FirePro W5000 video card with the 2018.Q4 drivers. 
 --Thanks, --Robert Arnold

Jan Šlegr · Answer

RobertArnold said: As soon as they switched to Microsoft's DirectX, I started getting some ghosting. 
 It sounds weird to me, because I have never experienced any problem with DirectX (which is used from XM). The only exception has been well known problem with some Nvidia drivers. But it's true that I probably do not use MicroStation in a same way as experienced 3D users. 
 RobertArnold said: hen they need to do something about that 
 Unfortunately reality is completely different and such idea cannot be realized. DirectX API is specified as any other API, but the problem is how it's implemented in drivers. And there were several issues documented where graphic chip produces lied about DirectX feature implementation just because of hoping for better sales. 
 Moreover, I remember an interview with AMD development manager and he explained that in some drivers versions e.g. 80% of changes were only to fix bugs in AAA games (because they are so poorly implemented)... it's silly to imagine that in drivers there are tests "when <this game> is running, replace their code by ours" :-( 
 RobertArnold said: OR USE SOMETHING THAT IS MORE STABLE like OpenGL. 
 API itself is stable, but my feeling is that the problem is on both sides: There have been too many versions of DirectX (specifically Direct3D, because DirectX consists from more APIs / modules), but at the same time drivers authors do not care too much about drivers quality, because "they are just games". 
 RobertArnold said: Bentley needs to change their methods to be more reliable. 
 As developer I have to say it's never simple to make a decision. I vote to support DirectX 12 (which was reworked heavily, is better structured and provides better performance) and forget anything older. But tin such case thousands of cards will become unusable. What is the best decision in such case? 
 Similar question is whether to use DirectX or OpenGL ... which often ends with similar time wasting and useless discussions like whether to use C# or Java ;-) OpenGL optimized cards are usually pretty expensive, but provides perfect output and performance. DirectX "gaming" cards are cheap and when Direct3D implementation is done well, they provide also very good performance. 
 With regards, 
 Jan