Thus most of my Alpha channel is "empty". The article covered the concept by erasing pixels directly on a layer, which I mentioned was a more destructive form of editing. I use 1.2, and I generally use photoshop to apply alpha channels that I make in GIMP. Maybe your image is saving correctly but how your are viewing is supplying a black background which would be viewable through the alpha layer? If you use a format like PNG, the alpha can change the RGB channels. In the Layers window, add alpha channel and layer mask to the layer. Having an alpha channel visible (solved) 3. Step 6¶ After the last step you should get something like this in Gimp. Editing the Alpha channel with Gimp If you're new to modding EQ graphics one thing that's going to drive you crazy is the Alpha channel. Alpha channel question. Click on it to make it the current drawing context. In my last GIMP Help article, I covered the topic of layer transparency in GIMP – explaining that parts of a layer can be erased to reveal either a color (when no alpha channel is applied to a layer) or a transparent background. Bulk removing alpha channel from over 1000 bmp imgs: 8 You need to have the background selected instead of … It is used as a blend layer just like RGB. Colorizing (only) with a Radial Gradient/ Alpha Channel: 8. How can I fill in the entire alpha channel with a foreground color in GIMP? to make an alpha channel, what I do is select the entire image, copy it, and then do "filters -> colors -> color to alpha"... or in 2.4's case, just "color -> color to alpha". You can later "apply layer mask" to merge the layer mask with the alpha channel. gimp 2.10: 10. When you add an image as a layer in GIMP, typically there will be no alpha channel. Step 5¶ With the selection complete and with an alpha channel just choose from the image menu Edit -> Clear, and the image background will be gone. It depends on the version of GIMP that you're using. Step Four: Create an Alpha Channel. I try using the Magic Wand, but it leaves white borders around where the alpha channel and image meet. Add Alpha Channel to All Layers: 1. From gimp 2.8.22 I've successfully saved an alpha channel in a png image that shows the css background color through the image correctly when used as the src in an img tag in an html file. This means in GIMP most of the Alpha layer is just the checkerboard and only in some parts I see black color. Alpha channels are important for creating transparency. To do that you have to use the right button on the mouse to get the image menu and go to layers and add alpha channel. I have an image with an alpha channel that I'd just like to fill in with one color (e.g., for a sky). In the layers window you'll see a second thumbnail next to the layer's normal thumbnail. To reach this, right-click on the layer you are using and click “Add Alpha Channel”. RED defines where gras is, green where dirt is, Blue where stone is and Alpha where snow is. An alpha channel will make it possible for you to have a transparent background. I don't use Gimp, but the alpha is stored as a separate channel from the three color channels, so it's probably just a Gimp preview mode that makes it look like they're dependent. Step Five: Invert Selection. Now paste your grayscale image. Thus my alpha channel isn't really used for alpha blending. Have a read of the forums if you don't know what that is, but trust me, you will need to understand and edit it. 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