Good day, I recently upgraded to blender 2.9 and my lookdev mode (material preview mode) is not rendering at all. I can see how my materials look in render view mode but in lookdev my materials just appear grey like in the picture I attached. This is my lookDev view (material preview)  Here is my render view perfectly working  I did some research and found that I am not  the only one facing the issue. I even upgraded my blender version (it was suggested as a possible solution) but that didn't solve the problem. I am using an HP laptop. May anyone please help me with my predicament. Thanks in advance
I don't know why but now, when i go in material preview or rendered (in solid mode it works fine), my object is entirely gray, or invisible idk, because it has the same color of the background. I've been working for days on this project without having this issue, it suddenly showed up. I tried opening other old projects and suddenly they all do the same so i guess it is some blender program setting that applies for all the projects, but idk how it happened cuz i didn't change anything :/, anyone got any tips?
How to disable all caches in safari 11? Keep processes alive after SSH logout Im trying to measure bandwidth, packet loss, latency and jitter between two computers on a wireless 802.11s mesh connection.   Im trying to make a (my first) bash script that can do the following:   SSH to another computer and start logging data from services (ptpd, tcpdump, iperf). Start the same processes on my own computer and start logging data. Once the iperf transmission on my own computer is finished, it should SSH into the remote computer and kill the the services.   The idea is for this these three steps run in a for-loop, that increases the package size transmitted by iperf for each iteration and logs the resulting data.  I know how to start a process on the remote pc by ssh host@adress process.  I am however clueless on how to start multiple processes through SSH and logout, since the processes are terminated once I logout. I have looked at the screen and nohup commands, but don't know how to use them in a script.  Thanks in advance!  EDIT:  Thanks for all the help so far.  I got nohup to work now, it was pretty simple as people pointed out.  So now I got: ssh host@adress nohup ./script.sh &gt; /dev/null 2&gt;&amp;1 &amp; in the script on my main pc. This starts a script on the remote pc just fine, and then logout of SSH. The next problem is how to execute the script on the remote pc as sudo, since this is needed by tcpdump.  Trying ssh host@adress **sudo** nohup ./script.sh &gt; /dev/null 2&gt;&amp;1 &amp; doesnt work.  Any ideas?  EDIT 2:  If anybody is stuck with the same problem, I found a guide how to solve this: Is it possible for an iPad to get a virus? Create a Symbolic link to the merged contents of 3 folders I have 3 folders with large amount of data in each which has to be maintained seperately. Can I create a sym link or shortcut.in windows which should show me the merged contents of the 3 folders. I am not looking for library conf in Win7.   Any suggestion is highly appreciated. How does "warp drive" not violate Special Relativity causality constraints? I'm talking about this nonsense:   Now, I'm aware that there are problems with the practicalities (or possibilities) of methods involving exotic matter with negative mass, and that kind of thing has been addressed here:   But in this case my question is different and more specific. Sweeping all the other problems of constructing such a beast under the rug, wouldn't this violate causality?  SR says that the simultaneity and relative ordering of events is dependent on the relative motion of the observer, but that no matter how it works out, if event A causes event B, no observer will see B first. One of the many problems with FTL travel (or signals) is that if any information is sent faster than light, there will exist an inertial frame in which the signal arrives before it is sent, a blatant violation of causality. (I think we can all agree, can we not, that the threshold should be extremely high before breaking assumptions that we're in a causal universe?)  So how is any scheme to travel faster than light, even if it may locally satisfy the equations of GR, not a blatant violation causality according to SR?  Is my understanding of GR incomplete and there's something in it that obviates the causality implications of SR? Or am I correct that FTL claims should be dismissed with extreme prejudice on this basis alone? (Pending a serious replicable experiment showing causality to be breakable.) Is it possible to use a primitive type (int) in as a generic type in Java? Specifically, with a SortedMap&lt;Vector&lt;String&gt;, int&gt; I get "dimensions expected after this (int) token." Help! Given the following HTML:   &lt;div id="container"&gt;   &lt;!-- Other elements here --&gt;   &lt;div id="copyright"&gt;     Copyright Foo web designs   &lt;/div&gt; &lt;/div&gt;    I would like #copyright to stick to the bottom of #container. Can I achieve this without using absolute positioning? I want to assign a class attribute via a string object - but how?  Example:  class test(object):   pass  a = test() test.value = 5 a.value # -&gt; 5 test.__dict__['value'] # -&gt; 5  # BUT: attr_name = 'next_value'  test.__dict__[attr_name] = 10 # -&gt; 'dictproxy' object does not support item assignment If you're using a quote with a period but do not want to end the sentence, do you keep the period? For example. If I want to quote a passage from a writing, that says     The cake is not a lie.   and my sentence is:     The book by author states that "The cake is not a lie." however studies show that the cake is a lie.   Is it OK to replace the period with a comma to make the sentence flow?  Relevant: Also what do you do with the capital "T" Are you allowed to lowercase it?     The book by author states "the cake is not a lie," however studies show that the cake is a lie.   I usually just work around this by switching up the structure of the sentence, but sometimes I really want to phrase something a particular way. Weighted choice short and simple Warning or confirmation on new tag creation In retrospect of this , I would like to ask the community how they feel about a warning or confirmation (or just special highlighting) on new tag creation.  Everybody hates stock "are you sure?" confirmation, but a lot of tags get created by mistake (and then used ad nauseam).   For example, I think I might have created the  tag by accident. Assuming the right tag was , there would be two tags for c# 4.0, until they are made synonyms. With a warning, some accidental tags could be prevented. What is the difference between the bind and live methods in jQuery? After learning about the  datasets I've working with the following layers, from the USA data   Country boundaries State boundaries County boundaries City boundaries ZipCode/Postcode boundaries   What I am trying to find is the equivalent (where appropriate) of the same data for various countries.  Is there any free administrative boundaries available as shapefiles for other countries? How many constructor arguments is too many? Let's say you have a class called Customer, which contains the following fields:   UserName Email First Name Last Name   Let's also say that according to your business logic, all Customer objects must have these four properties defined.  Now, we can do this pretty easily by forcing the constructor to specify each of these properties.  But it's pretty easy to see how this can spiral out of control when you are forced to add more required fields to the Customer object.    I've seen classes that take in 20+ arguments into their constructor and it's just a pain to use them.  But, alternatively, if you don't require these fields you run into the risk of having undefined information, or worse, object referencing errors if you rely on the calling code to specify these properties.  Are there any alternatives to this or do you you just have to decide whether X amount of constructor arguments is too many for you to live with? You can reach this IP address  (if my computer is online). I want to assign a domain to it so I wonder how is that possible when I have no DNS? I do own my domain which is ".com". My IP is static.  Thanks Negative logLikelihood Kalman filter CodeIgniter/PHP Active Record won't increment an integer SEO in Stack Overflow Hello,    This question is about the Command Line Developer Tools that are usually installed with xcode-select --install and updated via a software update from the Mac App Store (at least until macOS 10.13). I use the developer toolchain on a daily basis and it has always worked and updated without issues.    Today I've updated my mac from High Sierra 10.13.6 to Mojave 10.14.1, and I've lost the ability to update the Developer Tools.    After the update I've executed a terminal command that relies on the developer tools being installed. It was a command to update , although I don't think that the specifics matter, as I believe that any task that tried to access the developer tools would have triggered the same error message.    The error was:   xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun       The phrasing was new (maybe), but I thought that it was caused by the usual need to re-install the Developer Tools after some macOS updates.    Later I tried to dig a bit deeper into the failure, and found out that:  $ ls -l /Library/Developer/CommandLineTools/usr/total 0drwxr-xr-x  3 root  admin  96  4 Nov 19:32 share$ which xcrun/usr/bin/xcrun$ xcode-select -p/Library/Developer/CommandLineTools    Still, as I normally do, I entered the command to install and update the Developer Tools in the terminal:  xcode-select --install    This started the usual procedure: modal window to confirm, then request to accept the license agreement, followed by a progress bar. Except that it failed very quickly with an unexpected error:     Can&rsquo;t install the software because it is not currently available from the Software Update server.     I've tried several times, to no avail. It gets always stuck.    Sometimes, however, the failure causes the System Preferences to report a pending update:      If I open that preference panel it starts searching for updates, and it always finds nothing except the first time that it happened. The first time, it found this:          It literally suggested me to install the updates for macOS 10.11 and 10.13. I have no idea why.  I closed the preference without installing, and as I said it hasn't shown them again. There is also no update available in new Mac App Store.   Is this a known issue? Is there any way to resolve the problem?     Update  Of course I can download the Dev Tools for macOS 10.14 installer from .  Before installing them manually, though, I'm wondering if there is anything that's broken with the system. First Order Time-Variant System : Picard Method I looking at a time variant first order system. I am trying to prove that a sequence of functions $x^{[k]}(t)$ generated using Picard iterations converges uniformly on some interval $[0,T]$.  Given:  $\dot{x}(t)=A(t)x(t)$ where $x(0)=x_0$  $x(t)=x∈R^n$ where $A(t)$ is a $n×n$ matrix  Assume there exists $M$ such that $||A(t)||\le M$ for all $t\ge 0$ and that $A(t)$ is a piecewise continuous function. Show that, for any $T &gt; 0$, a solution exists in the interval $[0,T]$.  I know that $x(t)=x_0+\int^t_0A(τ)x(τ) dτ$ must be satisfied if the solution does indeed exist.  I am supposed to use Picard iterations to prove this, which I am not familiar with yet. But I know that they are of the form: $x^{[k+1]}=x_0+\int^t_0A(τ)x^{[k]}(τ) dτ$. Where $x^{[0]}(t)=x_0$  Can I use the standard Picard proof to prove this or do I need to start somewhere else?  I was also asked to show that this method satisfies  $|x^{[k+1]}(t)-x^{[k]}(t)|\le |x_0| $$\frac{π^{k+1}(t)}{(k+1)!}$ where $π(t)=\int^t_0||A(τ)||dτ$.  I have no idea where to start with this, but hopefully it will become clearer once I finish the first part.