No Image

I see the 3D image but nothing on the other pane.  Therefore, there is no place to paint.  Any thoughts on this issue?

What browser and operating system are you using? Do you see a checkerboard pattern in the 2d, or just the solid gray background?

I mentioned this in another thread, but you might also try quitting and relaunching your browser.

I actually shut down but that did not fix the problem.  When it first loads, I see checkerboard on both panes but  changes to normal right away.

Win 7 (upgrade version) & Mozilla Firefox

So I’m on a windows 7 machine running Firefox at the moment and I can’t seem to reproduce this bug. 


To be clear, you see the checkerboard pattern on the right when the page first loads, then it changes and you see just the solid dark gray background? In the 3d pane, what does the plane look like? Is it solid light grey like it used to be?

My only other suggestion while I poke around the code is to try forcefully refreshing the page (hit the F5 key). You might also try Google’s Chrome browser instead of Firefox. 
(Ultimately I’d like both to work flawlessly, but I’m clearly still battling issues in Firefox)

Thank you for your help @susan2012

When I log on, checkerboard appears on both panes. Both left and right images change to the gray pattern with dark lines.  The 3d box looks at it did before except the movable ‘plate’ (for lack of a better word) is not solid gray but identical to right hand image.  Right looks as it did but there is no blue image.  I tired the shift key to show the color it was turned off but that now operates on the left pane – that is the 3d image grays out but is still visible. I tried to paste a screen show but it was too big and not accepted.


I understand the problem now and am working to resolve it. Stay tuned!

Yeah!  BTW, I tired Chrome with similar results.

Well this is frustrating, I thought I had an idea of what was wrong but my hunch was wrong, it seems.


@susan2012 If you don’t mind, could you try running the benchmark on this site and pasting the results here?
http://webgl-bench.appspot.com/

Beware the site may freeze up your browser for a few seconds while it runs – nothing to be concerned about.

Thanks for your help!

Done!  Hopefully it helps.

I should have been more clear, you’ll have to copy and paste the text from the text-box in this forum thread after the benchmark runs.


Sorry for the mixup and thanks again

userAgent = Mozilla/5.0 (Windows NT 6.1; rv:14.0) Gecko/20100101 Firefox/14.0.1
GL_VERSION = WebGL 1.0
GL_VENDOR = Mozilla
GL_RENDERER = Mozilla
GL_SHADING_LANGUAGE_VERSION = WebGL GLSL ES 1.0
±-----------------------------------------±-------------+
| metric                                   | value        |
±-----------------------------------------±-------------+
| vtf/load_program_failed                  |            1 |
| uniqtex/l4.dim32.strip.tps               |     10497517 |
| uniqtex/l4.dim32.strip.dps               |         5462 |
| uniqtex/l4.dim64.strip.tps               |     11421583 |
| uniqtex/l4.dim64.strip.dps               |         1439 |
| caps/ALIASED_LINE_WIDTH_RANGE0           |            1 |
| caps/ALIASED_LINE_WIDTH_RANGE1           |            1 |
| caps/ALIASED_POINT_SIZE_RANGE0           |            1 |
| caps/ALIASED_POINT_SIZE_RANGE1           |            1 |
| caps/ALPHA_BITS                          |            8 |
| caps/BLUE_BITS                           |            8 |
| caps/GREEN_BITS                          |            8 |
| caps/MAX_COMBINED_TEXTURE_IMAGE_UNITS    |           16 |
| caps/MAX_CUBE_MAP_TEXTURE_SIZE           |         2048 |
| caps/MAX_FRAGMENT_UNIFORM_VECTORS        |           29 |
| caps/MAX_RENDERBUFFER_SIZE               |         2048 |
| caps/MAX_TEXTURE_IMAGE_UNITS             |           16 |
| caps/MAX_TEXTURE_SIZE                    |         2048 |
| caps/MAX_VARYING_VECTORS                 |            8 |
| caps/MAX_VERTEX_ATTRIBS                  |           16 |
| caps/MAX_VERTEX_TEXTURE_IMAGE_UNITS      |            0 |
| caps/MAX_VERTEX_UNIFORM_VECTORS          |          254 |
| caps/MAX_VIEWPORT_DIMS0                  |         2048 |
| caps/MAX_VIEWPORT_DIMS1                  |         2048 |
| caps/NUM_COMPRESSED_TEXTURE_FORMATS      |            0 |
| caps/RED_BITS                            |            8 |
| caps/SAMPLE_BUFFERS                      |            0 |
| caps/SAMPLES                             |            0 |
| caps/STENCIL_BITS                        |            0 |
| caps/SUBPIXEL_BITS                       |            4 |
±-----------------------------------------±-------------+

Ah this is perfect, I do in fact know what’s wrong with the site for you. I don’t think I’ll have time to fix this tonight but I’ll make it top priority tomorrow.

Thanks and have a nice evening.  I will help out the National Archives tonight!

@Susan2012


Okay I’ve pushed some new code which I hope detects & corrects for the issue you were having. Please let me know if you have any more luck this time.

(As usual, try refreshing the play page to make sure you have the latest code – usually by hitting the F5 key)

Well – I tried Mozilla & Chrome…
3D seems to work fine. 2D I can’t see any color but if I click an area that touches the image shown in 3D it shows blue in 2D but only one time.  So if I click a second area that touches it will appear in 3D but not in 2D although it retains the initial click.  This is better than yesterday when nothing showed in 2D at all.  This is hard to explain and if you’d like to phone conference with me on my laptop we can do that. 

I think I understand the problem you’re describing, I’ve been in email contact with someone else who seems to have the exact same problem at this point. I know roughly where the problem is from, but I am not yet sure exactly what’s wrong (it’s much harder to diagnose these things when I can’t reproduce the problem myself, and in this case it seems very hardware dependent). I will keep making small changes in the code and I’ll post here to see if anything resolves your issue.


I apologize for the issues & thank you for helping me debug this.

You’re making some progress as I now see the 3d and 2d image.  When I color a section in 2d it appears in but, unfortunately, in 2d.  If you want to remotely access this computer I’d have no problem with that as this is my play computer.

Hey Susan,

I was able to reproduce a similar issue on a laptop I found here. I pushed a change which fixed the issue for me. Could you check to see if your issue is now also resolved?

Thanks!

Alas, there is no 2D image at all.