Timeline for How to extend an Image from side to side softening the hard edge of image
Current License: CC BY-SA 3.0
19 events
| when toggle format | what | by | license | comment | |
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| Aug 1, 2017 at 5:50 | comment | added | Rich Sedman | @JeffFlesher I'm not at a computer for the next two weeks and so cannot take a look until then. | |
| Aug 1, 2017 at 1:19 | comment | added | Jeff Flesher | Do you want me to open a new question about how to fix this blend File? I have a link in the last comment, instead of doing it that way, I have the alpha over working, but the issue is the Date/Time Stamp, I think I need to remove it in the Material Nodes, trying to do so in compositor did not work for me, but I might be doing it wrong, left in inactive nodes where I tried to mask it out, also I could not adjust the RGB Curve enough to only effect that outer edge, so it will not effect the second image, note setting to .04 and .05 leaves hard edge, See ReadMe.txt, thanks. | |
| Jul 28, 2017 at 19:11 | comment | added | Jeff Flesher | Thanks again for the help, same link as the new page with both projects: Sun-Corona.blend.zip, see Sun-Corona-Material.blend, I am getting close with it, all I need to do is blur that edge where I masked out the Material image, and added back the original, now I just need to make them look seamless, this is using your original work this thread. You can see that I am trying get the stars to show, masked out the Sun so they will not show through it. | |
| Jul 26, 2017 at 23:10 | comment | added | Rich Sedman | @JeffFlesher I think it can be done in the compositor but unless I'm missing a trick thrn it's more complicated than doing it as a Cycles material. I'll post an answer if/when I get something working properly. | |
| Jul 26, 2017 at 22:15 | comment | added | Jeff Flesher | I added this as a new question: https://blender.stackexchange.com/questions/86547/how-do-you-convert-mesh-material-texture-nodes-to-compositor-nodes | |
| Jul 26, 2017 at 6:51 | comment | added | Rich Sedman | @JeffFlesher The original question was regards the spreading of the edges of the image. I only meant that the showing through of the stars, the removal of the text, usage of the RGB Curves node should be raised as separate questions. This way they can be answered separately to provide an answer that's accessible to others experiencing those particular problems also. For the RGB Curves, once you disable the 'Use Clipping' button the ranges no longer matter (it's like setting all to +/- infinity). My original answer did mention disable clipping but I should have been more specific. | |
| Jul 26, 2017 at 2:29 | comment | added | Jeff Flesher | Sorry, to me its all one question about the same question, but I understand if it gets off subject, and I hope I did not do that. But the thread is not really complete till I understand the answer, that is the way I look at it, for example, I just read you need to click the button, but it was not till I changed the min value did it work, details I did not know, so I ask more questions, its hard to avoid it, but the Compositor is better because it give more tools to pull this off, for one you do not need a material or texture, just an image sequence, I can use diff key, viewer node... Thanks. | |
| Jul 25, 2017 at 7:03 | history | edited | Rich Sedman | CC BY-SA 3.0 |
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| Jul 25, 2017 at 6:39 | history | edited | Rich Sedman | CC BY-SA 3.0 |
added 428 characters in body
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| Jul 25, 2017 at 6:01 | comment | added | Rich Sedman | There are a lot of questions there - it would be better to ask at least some of those as seperate questions. This site works best if each question is asked and answered separately. | |
| Jul 25, 2017 at 5:57 | comment | added | Rich Sedman | Apologies - I mised a crucial step on the RGB Curves node. I meant to mention it but forgot to go back and add a comment. You need to set it to not clip to allow values outside the 0.0 to 1.0 range - click the round dot button and click the clipping button. I'll update the answer. I'll also look into using the compositor but it's not my strongest area. | |
| Jul 25, 2017 at 4:50 | comment | added | Jeff Flesher | You lost me at the RGB Curves Node, I cannot get it to take - values, I see yours has them, also the scale is change from what I can get, I can not get it to look anything like this, the zoom only goes so far, what am I missing? | |
| Jul 25, 2017 at 3:53 | comment | added | Jeff Flesher | Sorry to ask so many questions, but can this be done from the Compositor instead of the Material/Texture Node editor? It would make this so much easier, but I just do not know enough about this setup to convert it. Thanks again. | |
| Jul 25, 2017 at 1:24 | comment | added | Jeff Flesher |
In the case I need to convert jpg to png to get transparency, is there anything else I should do to the image, normally I use IM to convert the images like this: mogrify -alpha set -background transparent -format png -path ../2016-png *.jpg if I wanted to make canvas larger I could add -gravity center -extent 4696x4096 , so I have 300 px on both sides to work with if needed, just not sure what I need to do to get this effect, not sure if adding -background transparent does anything if I do not extent, but it takes days for this to run, last time power when out, start over, or write script.
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| Jul 25, 2017 at 0:46 | comment | added | Jeff Flesher | I take that back, adding a Transparent Shader makes the Stars show through the Sun, so what I really need to do is make the Black Transparent, so you know how this can be done, or is this because the original is jpg and it does not support Transparency, if so will I have to convert all the files? That takes a long time and a lot of hard drive space so I want to make sure its necessary. Thanks for all the Help. | |
| Jul 25, 2017 at 0:14 | comment | added | Jeff Flesher | The only issue I now have is that the Date Time Stamp at the bottom is being erased, and also it looks like the transformation is taking place to close to the Sun, since not all the image will have a Hard Edge, I need to only effect those images that do, and I don't want to effect what Corona is already there so I could alpha over the original to fix that, so how do I adjust it so it only effects images that the Corona extends past the edge? Here is a link to an image without Corona link | |
| Jul 24, 2017 at 23:09 | comment | added | Rich Sedman | @JeffFlesher Glad to help. Not sure I understand fully the problem with the stars. You could try combining the output from the Emission Shader node with a Transparent Shader node by way of an Add Shader. This should result in transparency. If this doesn't help then probably best to submit a new question. If you do then let me know (by posting here) and I can take a look. | |
| Jul 24, 2017 at 22:28 | comment | added | Jeff Flesher | This works for me, thank you so much, just one question, how can I make the Black Transparent so the Stars show through? I tried this from the Compositor using the Difference Key, but when I alpha over the Sun it did not work for some reason, as a result the hard edge is still there also, my guess is that the Material is not transparent, no idea how to change this in Cycles, in Blender it was a property, so I get a contrast of the two black colors, and I do not know how to convert these Nodes to those compatible with the Compositor and get the same effect, without using an Object. | |
| Jul 24, 2017 at 19:59 | history | answered | Rich Sedman | CC BY-SA 3.0 |
