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Everything posted by John Rostron
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You might get a better response if you posted your questions in the Questions forum! You would also get a better response if your title was more specific to the problem, possibly "Help needed to create photorealisic images in Affinity Designer" (or Photo if appropriate). Sorry, but I cannot be of help on your problem. Photorealism is not my scene. John
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RAW files are essentially read-only. No image-editing software will write a RAW file. You can save as a tiff if you want to open the image in another program whilst preserving detail. John
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Recent threads such as this one by @Gregory St. Laurent have commented on the default image when a raw is loaded into the Develop Persona being too dark (or too light or ...) as compared with other programs. My experience, with my rather old Sony A55 camera, is that the default image in the Develop Persona is fine in 95% of the time, and that any tweaking needed is done in the Photo Persona. The odd 5% are those images taken under odd lighting conditions, but even with these, I will typically bracket the shots and merge in HDR. I would be interested to hear from other uses of Sony cameras (old and new). Have you had these problems that are described elsewhere? If not, then it would seem that the default develop algorithm for ARW files is closer to what is expected as compared with CR2 or NEF files. John
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This question was posted on the SilverFast forums in 2009. SilverFast responded: "8 bit HDR color scanning mode generates unmodified RAW TIFF files which act like a digital negative. It means no changes are applied during the scanning process, this includes the positivation of your negatives.If you want your endfiles to appear as positives, you will have to use the 48 bit color mode (without HDR)." So it means that you will have to follow @toltec's advice and not mine. You might like to follow this link from SilverFast. John
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When you open a raw file, it will automatically open in the Develop persona. You can then use the develop tools to develop the raw image. These are typically global adjustments. When you have done this you click on the Develop button to confirm your adjustments, and then continue in the Photo persona. I would guess that the images that you had previously opened were not raw files, but jpegs or tiffs. These open in the Photo persona. Jihn
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Many options for rotation in Affinity Photo are constrained to simple fractions of a circle, with 15 degrees being the smallest. It is possible to rotate by an arbitrary angle using the Crop tool. You place the cursor just outside a corner, and rotate by dragging the two-arrowed cursor that appears. This tutorial explains how you can rotate an image using Filter > Distort > Equations. Before rotation you would normally want to expand the canvas so that you can give the document enough room to rotate. The new canvas width should be at least 150% of the existing diagonal and the Anchor should be in the centre of the array of nine positions. See this image: q Now select Filter > Distort > Equations. The top pair of buttons allow you to choose the co-ordinate system. The default is Cartesian (the usual x and y axes). You need to choose the Polar option. You now have two lines: r=r t=t The r represents the radius (the distance of a point from the centre of the image), and the t (or Theta) is the angle of rotation in radians.Radians are a measure based on pi, You can easily express an angle in radians as a multiple of pi, so 2*pi represents the entire 360 degree rotation, pi represents a half-circle rotation (180 degrees) and pi/4 represents a quarter of a half circle, or 45 degrees. So, writing t=t+pi/2 rotates the image by a quarter of a circle counter-clockwise. Entering t=t-pi*0.333 rotates it by a sixth of a circle clockwise. So, given a grid like this (after resizing the canvas): and using the equations as above, gives an image like this: which can then be clipped (Document > Clip Canvas) to give: . I have created a macro with a single parameter a which represents the fraction of pi. The default value of 1 will not rotate the image. Increasing a will give progressively more rotation; a value of 0.5 will rotate by a half-circle. In the example here, I have resized the canvas before applying the macro. The formula used in this macro is: t=t+pi*2*a. Here is the macro: Rotate.afmacro John
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Convert .afdesign to .psd format
John Rostron replied to WaveF's topic in Tutorials (Serif and Customer Created Tutorials)
I don't have Illustrator, but do have Photoshop CS5. I created s file in Designer comprising two independent lines of Artistic text, and saved it as a .pdf. I could open it in Photoshop CS5, but the text was rasterized. However if I opened the .pdf file in Corel Draw X7, then the text was editable text. But, the two lines of Artistic text had been combined into one frame. This does not help the OP, but others might find it interesting. John -
A raw file is one that has come straight out of the camera (SOOC). If it is altered in your editor, such as Photo, then the image is no longer raw and must be saved (as .afphoto) or exported as .tiff or .png or .jpg. Your original raw image is unaltered so you can use it again. So, in answer to your question: You cannot, but why should you want to? John
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Another way to rotate the document (but not the canvas) by any amount is to use Filter > Distort > Equations. You need to choose Polar Coordinates, then for the t= formula enter t+pi*fraction. t represents the Angle (Theta) and fraction is the fraction of the half-circle you want. Simply entering t+pi rotates the angle by 180 degrees. Entering t+pi*0.5 rotates it counter-clockwise by 90 degrees. You will need to expand the canvas size before rotation (use Document > Resize Canvas) and click on the small square in the centre of the grid of nine. Just doubling the size will suffice. Afterwards you can get rid of the excess by entering Document > Clip Canvas. Edit: Warning! This method works but it is destructive. John
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With the crop tool, you can rotate the document, but not the canvas. Click just outside a corner and rotate. Was it just my imagination, but I thought that in the past I had rotated a document by clicking on the move tool and entering a rotate angle in the Transform panel. It certainly didn't work an hour ago. Or was that just in Designer? Edit: Warning! This method works but it is destructive. John
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According to Wikipedia, "FITS support is available in a variety of programming languages ... including C, C++ and C#". So, it would not be impossible to implement this in Affinity. (You would not be asking for the stars.) I would suggest that you make a formal request for this in the Features Request forum. If others support your request, then it is more likely to be implemented (eventually). But don't hold your breath. John
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File properties panel
John Rostron replied to gabriel_komorov's topic in Older Feedback & Suggestion Posts
In that case, post in the Feature Request forum! John- 5 replies
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I would guess that you are using the Filter > Distort > Equations filter. I have just tried this by entering an equation for x and pressing Enter. The image changes, but nothing else happens. It does not even move onto the y= line. Same with entering an equation for y. Maybe it is because you are on OSX; I am on Windows. Rather than post on the Feature Requests, I would suggest that you report it as a Bug on Apple, since it works OK on Windows. John
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I opened my font folder in Windows Explorer with a view to purging lots of surplus fonts. It gave me the option of hiding a font (as an alternative to deleting it). I hid about 60% of my fonts in the hope of shortening startup time, but I have not noticed a diminution in this. John
