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David Ball

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Xpression. XpTextObject TextWithTags,

Posted By David Ball 08-23-2023 13:10
Found In Egroup: Graphics \ view thread
I am looking into using the TextwithTags property, but the documentation doesn't explain what the contents of the tags are. I see that they are delimited by () but I don't know what I can put in them. when looking at one of my text fields I saw "(2)(M:) My text's content". I can guess what that means ...

RE: Changing the alpha of a group.

Posted By David Ball 06-29-2023 17:28
Found In Egroup: Graphics \ view thread
Hello, Thank you for all the responses, I was able to accomplish this via an animation. However, I did try it first in c# code and had no success. The goal was a quick fade out then in using alpha when my data changed. It worked if I directly changed the alpha on my two text objects but not if I ...

Changing the alpha of a group.

Posted By David Ball 06-27-2023 19:42
Found In Egroup: Graphics \ view thread
Can the alpha be changed on a group to change the alpha of all the objects in the group. ------------------------------ David Ball ------------------------------

RE: Using c# adding new textures to more than one material and then updating

Posted By David Ball 06-24-2023 19:05
Found In Egroup: Graphics \ view thread
Hello, thanks for your response. I don't understand what you are saying but I partially solved the problem. We have a system where we change the assets at any point while the graphic is online. I had always been told to have that happen as soon as we get the signal to update. This would happen separately ...

Using c# adding new textures to more than one material and then updating

Posted By David Ball 06-23-2023 14:01
Found In Egroup: Graphics \ view thread
I am using c# to change the image in a material's texture. I do this for a number of materials. The issue I am having is that the updates visually happen sequentially. Is there a way to have them update and then get drawn to the screen at once? The way I currently do it is fine with the development Xpression ...

RE: Error loading xpfs

Posted By David Ball 01-25-2023 12:23
Found In Egroup: Graphics \ view thread
Hello, sorry, the version of Xpression we use in development is the Developer version 11 build 5659. We always use the matching versions across the Xpression suite whenever possible. thanks dave ------------------------------ David Ball ------------------------------

Error loading xpfs

Posted By David Ball 01-24-2023 15:16
Found In Egroup: Graphics \ view thread
Hello, We use a c# app to load a number of projects. Occasionally, one will fail to load. the only message we get in the Xpression Debug Monitor is "Error while loading file:" It doesn't happen all of the time and it isn't always the same xpf. So far, we haven't seen any clear pattern. It only happens ...

RE: Error trying to access text in xpTextObject

Posted By David Ball 12-16-2022 15:41
Found In Egroup: Graphics \ view thread
Hello, I do have another question. when we add the reference to the library should we be adding Interop.XPression.dll (which I find by adding the com object reference in VS) or xpression.net.dll (which is in C:\Program Files\XPressionDeveloper\net) or does it matter? thanks dave ------------- ...

RE: Error trying to access text in xpTextObject

Posted By David Ball 12-15-2022 18:39
Found In Egroup: Graphics \ view thread
Hello, I have figured out the issue. Since we need to be able to build this project on our build server and we don't have Xpression installed on the build server we have included a 3rd party folder in our source control and included the libraries xpression.net.dll and xptoolslibs.net.dll. Adding the ...

RE: Error trying to access text in xpTextObject

Posted By David Ball 12-14-2022 14:44
Found In Egroup: Graphics \ view thread
Hello, I get the scene from the project, which I get from the engine. We have a few xpfs and the one with the issue isn't the first, however, it is the first that tries to access a text object during our initialization process. _engine = new xpEngine(); for (int n = 0; n < _engine.ProjectCount; n++) ...

RE: Error trying to access text in xpTextObject

Posted By David Ball 12-13-2022 15:18
Found In Egroup: Graphics \ view thread
Hello, I never uninstalled Xpression. I have only ever had the developer version on my desktop. I did try to re-install (10.55 I was using 9) and had the same result. I cleared the script engine cache. I do find that if I do the following _scene.GetObjectByName("xOffsetVal", out temp); _temp = ( ...

Error trying to access text in xpTextObject

Posted By David Ball 12-07-2022 16:44
Found In Egroup: Graphics \ view thread
I just updated from Xpression 9 to 10.55 I get the error when I run the following code: _scene.GetObjectByName("xOffsetVal", out temp); _temp = (xpTextObject)temp; string offset = _temp.Text; System.AccessViolationException HResult=0x80004003 Message=Attempted to read or write protected memory. ...

RE: xpressions xpScene method ApplySceneDirectorPositions

Posted By David Ball 08-15-2022 18:02
Found In Egroup: Graphics \ view thread
Anyone have any ideas? This has become a highly urgent issue. thanks ------------------------------ David Ball ------------------------------

RE: xpressions xpScene method ApplySceneDirectorPositions

Posted By David Ball 07-29-2022 18:57
Found In Egroup: Graphics \ view thread
I'm sorry. When I say I inherited code, I meant I inherited code that made that call. Maybe there are multiple ways of making that call and I didn't clarify. I inherited code in c#. It uses the Xpression com object to interact with the Ross Expression xpf's. The code has the call ApplySceenDirecotrPositions ...

xpressions xpScene method ApplySceneDirectorPositions

Posted By David Ball 07-28-2022 19:10
Found In Egroup: Graphics \ view thread
I inherited some code that calls ApplySceneDirectorPositions(). I have tested with and without the call but can't tell a difference. What does the call do? ------------------------------ David Ball ------------------------------

RE: Performance meter goes over 100%

Posted By David Ball 03-29-2022 14:42
Found In Egroup: Graphics \ view thread
Hello, we are using api calls to update data as the animation happens. I guess my question would be what is a lot of API calls. We update ~4 text fields, move 2-4 objects and move 2-5 masking objects. We don't attempt to update if the value hasn't changed. That doesn't seem like a lot. However, we do ...

RE: Performance meter goes over 100%

Posted By David Ball 03-11-2022 13:58
Found In Egroup: Graphics \ view thread
Hello, we have changed our videos to be the same frame rate as our scene but we still have performance issues. . I'm also not sure how to interpret the Video Cache Monitor. When I run it in the dev version of Xpression, it looks very similar to what your screen shot displays so I assume it isn't telling ...

RE: Performance meter goes over 100%

Posted By David Ball 03-03-2022 18:38
Found In Egroup: Graphics \ view thread
Project settings: I use a developer version so I only see virtual Output. I'm still curious how the video that has finished playing affects the performance. The video is only a few seconds long. Does the video need to be cleaned up or forced to stop or unloaded? thanks dave ------------------------------ ...

RE: Performance meter goes over 100%

Posted By David Ball 03-03-2022 18:02
Found In Egroup: Graphics \ view thread
Hello Garrett, the video is coded in the Xpression codec. If I look at the frame rate of the video in the material edit panel it says 29.97 but in the virtual output it says ~60. The video only plays at the beginning of the scene and is not playing after that. The video is definitely not 4K its only ...

Performance meter goes over 100%

Posted By David Ball 02-26-2022 12:53
Found In Egroup: Graphics \ view thread
Hello we are running Xpression via a C# program. Occasionally we get spikes well over 100% causing stuttering and jerkiness. I do see one cause it when we get an exception in our C# program it causes issues in Xpression. In the particular scene we are looking at I have prevented that from happening ...