Mview Hmi
Leontina Heidgerken
Using fit does not guarantee precision. If you want precision, assign the desired scale. Remember that the viewport needs to be slightly bigger than the objects within it in order to account for lineweights.
Unfortunately we cannot snap on the corners of the printed area or on the corners of the paper sheet, so I use the mview fit command only as a workaround, to create an object with a size equal to the printed area and so that I can then snap on the corners.
Once I create that viewport with the fit command, I draw a rectangle on top of it and then I delete the viewport as I don't need it anymore. I use that rectangle to centre the frame of my drawing and to posision my title block precisly, instead of trying to position them just by clicking "close enough".
Your 5.0mm calculations are only true if the measurement occurs from the edge of you sheet. Make your PRINTABLE AREA exactly equal to you sheet size by forcing your margins to zero (0) or no margins whatsoever. Doing this will allow you to draw your viewport at 410mm wide X 287mm tall. Image-1.
The only way to do it precisely, is to set all the margins around the paper sheet equal to zero, then start the draw rectangle command, type 0,0 as the starting point and then create the rectangle by typing the dimensions of the sheet. After that, you can offset it inwards to place the actual frame around the drawing.
Yes, the rectangle itself can be prompted to start at 0,0 but the sheet, the white thing representing the page, isn't always positioned with the lower left corner at 0,0. Drawing the rectangle and demarcating a centered-window will force the white sheet to where it belongs.
There's a similar question (History refresh of materialized view) but IMHO the answer doesn't responds the author's question as ALL_MVIEW_REFRESH_TIMES reflects refresh time of underlying table and keeps only latest refresh type.
What I'm looking for is an answer to question "Was there any COMPLETE refresh of a particular mview?". I create an mview on prebuilt table (which is empty) and want to run a COMPLETE refresh if it hasn't been run before or continue with a FAST refresh.
I have been asked to troubleshoot a monthly on demand materialized view refresh job which has got the bad idea to crash with the ORA-01555 error after 25,833 seconds (more than 7 hours) of execution. Despite my several years of professional experience this is the first time I have been asked to look at a materialized view refresh. This issue came up Friday afternoon so I was given a week-end to familiarize myself with materialized views. Coincidentally a couple of days before there was an Oracle webcast on Materialized view basics, architecture and internal working which I have replayed on Saturday and practiced its demo. Christian Antognini book contains a chapter on this topic which I have also gone through as far as Christian book is from where I always like to start when trying to learn an Oracle concept.
The following Monday morning, armed with this week-end accelerated auto-training, I opened again the e-mail I have been sent about the failing refresh job and started re-reading it. The first thing that has retained my attention this time, in contrast to my last Friday quick pass through reading, was a suggestion made by the DBA to try fast refreshing the materialized view instead of completely refreshing it. I learnt from the Oracle webcast that Oracle is able to let us know wether a materialized view can be fast (also know as incremental) refreshed or not. Here below the steps to do if you want to get this information:
The first learned lesson: instead of trying the create a materialized view log and fast refreshing a complex materialized view which might be impossible to be refreshed incrementally, try first getting the capabilities of the view using the explain_mview procedure. You will certainly save time and resource.
Have you noticed that parallel 16 clause in the materialized view create script? The developer intention was to create the materialized view using parallel process. Having a Production equivalent database I was happy enough to try re-creating this materialized view:
Surprisingly the materialized view has been created in less than 23 minutes. And this creation has been parallelised with a DOP of 16 as shown by the corresponding Real Time Sql Monitoring report (RTSM).The master table has been henceforth created with a DOP of 16 as shown below:
In contrast to the creation process, the materialized view refresh has been done serially. This confirms that the above parallel 16 clause in the create DDL script concerns only the parallel materialized view creation and not its refresh process.
The second learned lesson : I think that a parallel clause specified in the create statement of a materialized view is not used during the refresh of the same materialized view. The parallel run is considered in this kind of situations only at the materialized view creation time.
The third learned lesson : using the parameter parallelism of the dbms_mview.refresh procedure has no effect on the parallel refresh of the underlying materialized view.
The fourth learned lesson : if you want to parallelise your materialized view refresh process you had better to include the parallel hint in the select part of the materialized view. This is better than to change the parallel degree of the tables on which the materialized view is based on.
Marmoset Toolbag has been a game development industry standard for years. It allows artists to showcase their work in a real-time environment so that others can review their geometry and animation and help with look-dev and lighting. It is incredibly simple to use, and it also gives artists a solid understanding of where possible issues lie within their modeling and texturing workflows.
It is worth noting that modern game engines like Unity and Unreal take full advantage of the newer metallic/roughness PBR materials, so any assets you create for these engines will be nicely suited for conversion into Marmoset .mview files. The takeaway here is that regardless of which method you choose to create your materials, they must be built using only bitmap textures and should not contain procedural shaders or materials that are often available within a 3D application. All color and texture information should be derived from the maps themselves.
This should seem obvious, but if you are producing models that you intend to go into a real-time engine like Unity or Unreal, your content will likely be a good candidate for generating an .mview file.
The only thing worse than that is if you try to decimate or reduce the number of polygons in your model just to get it to work in the Marmoset viewer. We recommend that you avoid decimation since it will be a complete mismatch in terms of topology to what your customer is purchasing, and that will also lead to confusion, returns and frustration.
Creating an .mivew file using Marmoset Toolbag is quite straightforward once you have a model set up properly inside of Toolbag. This document will not cover how to make your model look good inside of Toolbag. Rather it will focus solely on how to prep it for export to an .mview file.
In order to export to an .mview file, there are several considerations to make regarding your lighting and background. Essentially, the .mview file will respect whatever your current settings are when you export your model. As such, if you have an HDR background image visible in your viewport (as is the case above), or a heavily tinted HDR selected (which will color your model) when you export, that image and light tinting will be visible to users.
If you are happy with this result, you can close the Marmoset Viewer and click on the Export button to generate the final .mview file. If not, you can go back into Toolbag and make further adjustments to your work.
I noticed through Enterprise Manager that the insert command is the one that is taking longer (the delete is ok).I also observed a "enq: JI - contention" occurrence but reading the note on Oracle Support looks like is an ordinary behaviour during refresh: a lock on the mview table is applied to prevent other session to issue other refresh commands..
MView stands for Materialized View which is a snapshot of the database at a point in time. _viewWhy would we need to duplicate tables. Indexers are costly to run, especially when there is traffic on category pages, customers place orders and admins save products.On product save the cache gets invalidated (off topic). In case of stock indexer, before it ends the execution, it sends the entity ids affected as cache tags to be cleaned (full page cache type). In Magento 2.0 categories ids of purchased products are sent. In Magento 2.1 the product ids are sent.
Changelog tables are:[indexer name]_cl (suffixed with _cl).e.g. cataloginventory_stock_cl. If you have indexers set to Update by Schedule and save a product in admin you'll see the entity_id of that product in this table. It's a big circle, I'm thinking place order or create shipment will add here an entry too.
About cache cleaning after Stock Indexer.When an order is placed on checkout, the quantities are subtracted using this observer: \Magento\CatalogInventory\Observer\SubtractQuoteInventoryObserver
In Mview case, when the new quantities are subtracted in SubtractQuoteInventoryObserver, the MySQL trigger (created for Mview) will insert a row in cataloginventory_stock_cl, marking that a reindex (stock & fulltext) needs to be done to those purchased product ids.There are many MySQL triggers created for Mview. See them all with SHOW TRIGGERS;.
When cron runs stock indexer in Mview mode the affected product ids (in M2.1) or categories ids (in M2.0) are sent to cache clean as cache tags. By cache I mean full page cache type. Example: catalog_product_99 or other cache tag format depending on the Magento version. The same when Mview is not enabled.
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