Part Number: DLPLCR4500EVM
Here is a link to the forum where I got the picture, which is halfway down the page: https://www.hard-light.net/forums/index.php?topic=85344.0
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In reply to Carl Wienecke:
Hi Carl, Welcome to E2E Forums! We'll help you with your query. Kindly help us reproduce this behavior at our end. Could you kindly provide us the pattern sequence configuration you are using, and also some of the images you sent to the DLPC350 through the PC during your experiment? This will help us reproduce the issue at our end faster. Thanks & Regards,
In reply to Hirak Biswas:
Thanks for your reply. You ask me to provide the pattern sequence configuration, but in my post I described all the steps I take to set up the Lightcrafter in the GUI. Can you help me understand how to find the information you need? Below is a picture of how I configure the Lightcrafter in the GUI. As for the images I'm sending to the Lightcrafter, they look just like the sinusoidal pattern shown below, although in my case the sinusoid is moving (in one direction, at constant speed). So for the example pattern below, the sinusoid would move (translate) up or down, and the bands would be horizontally oriented (like the sinusoid), and would move along with the sinusoid. Note the image below doesn't have any bands (I'm unable to take a photo of the artifact). Please let me know if you need anything else, like the OpenGL code I use to generate the images I send to the Lightcrafter. Thanks!
Hi Carl, Thanks for the info, I can understand your pattern configuration from the screenshot. We'll look into this and get back to you soon!Thanks & Regards,Hirak.
Hi Carl, this is taking a bit more time. Kindly wait for a few more days. Thanks for your patience.
Thanks & Regards,
Hi Carl, We have started looking into this. We tried scrolling the image on the DLPC350 in pattern mode with the same pattern config you are using. But unfortunately we are unable to reproduce. Do you see artifacts in the still image as well? Also, can you provide a video or some other material we can play on the LCR4500 to reproduce the issue?
Thanks & Regards,Hirak.
Thanks for looking into this. I do not see the artifact in still images. I only see the artifact in moving images. To produce the images, I'm using Microsoft Visual Studio community edition (which is free) on Windows 10, and custom-written c++ code with many OpenGL calls. If you want, I can provide a minimal version of the code which you can run to reproduce the issue. Would that work? You say you tried scrolling the image - what image? Do you mean you took the image I provided above and sent it to the Lightcrafter? If so, that seems like it might be very different than the way I generate the images (but I'm no expert). You can email me if you want to set up a phone call to discuss how we can reproduce the artifact on your end, since those details are probably not interesting to the readers of this forum. Resolving this is essential my project and I appreciate your help.
Hi Carl, Yes, actually I took the image provided by you, and tried to scroll it up and down using mouse wheel on LCR4500 screen expecting to see an artifact. I could not. if you can send me the small application to generate the pattern you use to reproduce that would be great! We can also move it to private messaging if you want.
Thanks & Regards,
Do you still need the answer to your query? I'll be temporarily closing this thread due to inactivity, you can reopen anytime. Thanks & Regards,
Yes, please. Can we switch to private messaging to discuss how to reproduce the artifact on your end? Once we've resolved the issue, we can post the solution to this thread publicly. Please send me a private message when you are ready to move forward. Thanks,
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