8/27/2023 0 Comments Gimp gradient lightingGetting their lights and shadows right is far from trivial. Warning: The job turns to a complex one as soon as you want to have some items or persons under the beams. More plausible result needs some weak color also on the walls. White presents overexposure in the camera. The gradient is radial white-red-transparency, red has opacity = 40%, white is opaque, blending mode = Normal. The beam is a selection which has been filled with a gradient. The spot on the floor is like the glow around the lamp, but bigger. It's a blurred red ellipse with blending mode Hard light. There are only 3 parts in separate layers: I guess a colored light cannot be simpler. Here's one home made light beam and its parts without blur. color and background item contrast loss (=whitening) at bright areas due overexposure.Draw a sector with gradient fill and give to it circular motion blur.Ī complex thing is how much you want to include the non-idealities of normal cameras such as GIMP's circular motion blur would be especially effective for the conical beam because you will get radially expanding blurrines. You can use blurring or gradients or both of them. This can be done also without a beam photo, but it needs some work. I applied hue shift to recolor the beams, erased a little at the bottom with the eraser a (=slowly with low opacity for no edge) and distorted the shapes a little to make them different & fitting better to the perspective. I added 3 copies of your beam as separate layers with layer blending mode=ADD. I used Photoshop, which doesn't offer any advantage in this case. This works in any photo editor which has layers and blending mode ADD. Keep the "Shadow" layer active, and go to Filters -> Blur -> Gaussian Blur, set Horizontal and Vertical values to 250,0 and Blur Method to RLEġ5.This is one easy way if you have some beam images taken in otherwise black darkness. Now you can eliminate the ellipse selection by going to Select -> Noneġ4. Select the "Shadow" layer and fill it with Black, here's what you'll haveġ3. Without eliminating the ellipse selection, create a new layer and name it "Shadow"ġ2. Now lets create a ellipse selection, In the Toolbox click on the Ellipse Select icon, make a small selection in yor layer, then in the Tool Options panel, set Position 500 and 0, and Size 17ġ1. Resize the spherized texture by going to Layer -> Scale Layer, set the Width and Height to 1500ġ0. Now lets spherize the texture, go to Filters -> Distorts -> Apply Lens with Lens refraction index in 1.40ĩ. Set the layer mode to "Soft Light" and Opacity to 25%, and you'll have this, you can't notice the difference because of the size (423x423)Ĩ. This is only optional, in my case I added and seamless rock texture to add some rough aspect to my planet, I used this texture Here's an example of what you should haveħ. In this case, I only played with the Move, Grow, Shrink and Swirl (both CW and CCW) controls, you can also adjust the Deform Ratius/Deform Ammount to adjust the effects, If you're not satisfied with the first results, just click Reset and try againīefore use IWarp, I suggest you duplicate the layer Now this is the part where you need to be creative since there's no specifics rules to follow, go to Filters -> Distorts -> IWarp Select the gradient you want for your planet (I used a gradient of blue tones) and add it to the "Planet Gradient" layer, and you'll have something like thisĬheck Antialiasing, Horizontal, Smear and SineĦ. Create a new layer and name it "Planet Gradient"Ĥ. Create a image of 1700x1700 and 150 of resolutionģ. Gradients from top to bottom: FG to BG (RGB) Full saturation spectrum Nauseating headache Browns Four bars A gradient is a set of colors arranged in a linear order. Hello, here is my first tutorial, explains about the creation of Gas Planets in GIMP, since there is no tutorial about Gas Planets for GIMP (only Photoshop) it's very simple, lets get startedġ.
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