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3D, Camino-Placerville & Lake Tahoe "Shay" type steam locomotive No. #2, Travel Town, Griffith Park, Los Angeles, California, 2010.03.31 17:43

(PID:4465709377) Source
posted by alias Reverend Doctor Wizard d'Isney on Saturday 27th of March 2010 04:29:07 AM

[crosseye stereograph, see 3D with your right eye on the left image, and left on right.] My second break-out frame ever attempted. Normally, I am opposed to loosing any information in a picture. The purpose of my work is recording reference documents. I started by matching the pairs [see "How to Join Stereo Pairs".] To preserve the original stereo pair work, I duplicated the whole image layer and added an alpha channel to it, for trimming later. I added a pink layer, which would be discarded later, between them - that would provide contrasting background for the edge trimming to come. To create the first frame, I added a transparent layer in which I used the rectangle select tool to carefully position the centers of the first frame rails that would widen from as edges accumulated.. To simulate a guilded wood frame, I picked a pine wood pattern as a brush, clicked Edit|Stroke-selection at three pixels wide, which gave the center of the frame moulding. Then I used the select-by-color tool anywhere in the transparent area and inverted that selection to select the frame edges. I repeated those two select/stroke steps several times, thickening the frame with alternating solid color/patten brush, varying the width of the stroke and choosing progressively darker toward the edges. When I was satisfied with the frame appearance, I reduced its dimension with Layer|Autocrop-layer because it was a perfect rectangle to duplicate for the matching pair. If it was any other shape I could have selected transparent by color, inverted the selection to CTRL-C copy the frame, and then added a clear layer to paste the copy into. Either way it is important at this point to have the copy on a separate layer to slide around visually aligning the frame to draw the eye behind the locomotive. The right edge was most important in this shot, so I tried to "give clearance" as if the frame were touching the wheels of the obscured side. I wasn't concerned with the left edge, knowing that if such a giant gold frame around the real engine existed, the viewer would be able to "see around" it more with the right eye, and that would enhance the illusion of depth. Quickly, I checked horizontal alignment by zooming in to 800% aligning the bottom of the window to the edge of the frame, then dragging the bottom slider over to the other frame to use the move tool adjusting up/down so the frames are at identical heights relative to the window base. (a method used in the critical point of Joining Stereo Pairs.) The next step is a tough concept for the simplest results. There are two frames that cover both engines. But I want to make it appear that the engine is breaking out of the page, and the bars descending down over the boiler spoil that effect, so they must be removed. To do that most easily requires "flying blind", working on a layer you don't see. I clicked the layer of the offending guilded frame as the one to work on, then clicked off it's visibility, so I see only the engine. Zoom in to the stack. Using the free-select tool (lasso) I carefully set points along it's edge as if I were going to cut the smokestack away. When I was wider than the bar of the frame, I checked my work, and clicked the guilded frame layer item visibility, tap the deleted key and the frame now has a hole in it. Three more holes for the top and bottom cut-away of the frame leaves floating bars of frame that are easily removed with rectangle select. Now the top layers depicting the frames end at the visual limit of the object, giving the appearance that they disappear behind that object. Last step: trim away the background outside the frames. I selected the duplicate layer to work on, knowing that CTRL-Z (undo) is my friend and if I really mess up, the bottom layer is still in registration so I can select a matching piece to overlap a higher layer with a copy/paste and not have to worry about alignment. Having the "decoupage" layer (with alpha channel added) over the pink contrasting layer was a great help in the trim. I worked in small sections with the free-select tool and delete key, snipping away at the edge of the subject, then removing large chunks as we did with the guilded frame. Having pink show through to confirm the right places were deleted and nothing more is easier to me than the default grey checkerboard against this essentially black and white subject. The project took several hours. When I was done I saved it in three formats: 1) .xcf the native format that preserves transparencies and layers, so I could come back and make adjustments if needed. 2) .gif to preserve transparency, at the cost of color depth. For web pages with backgrounds other than white. 3) .jpg flattened with a white background for color depth at the cost of transparency. for web pages with white backgrounds. 3D, Camino-Placerville & Lake Tahoe "Shay" type steam locomotive #2, Travel Town, Griffith Park, Los Angeles, California, dsc00110, 2010.03.31 17.43, 34.154640, -118.308527



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  • Published 12.03.22
  • Resolution 1024x413
  • Image type jpg
  • File Size 130252 byte.

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