Created
July 18, 2016 17:55
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Demo: Mixing two images in PureBasic (assumes 2 128x128 textures)
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| UsePNGImageDecoder() | |
| UsePNGImageEncoder() | |
| Global Dim imageColors.i(1, 128, 128) | |
| Procedure main() | |
| LoadImage(0, "clay_cut_128px_ta.png") | |
| LoadImage(1, "grass_cut_128_ta.png") | |
| Protected x | |
| Protected y | |
| ;read pixel colors for image0 | |
| StartDrawing(ImageOutput(0)) | |
| For x = 0 To ImageWidth(0)-1 | |
| For y = 0 To ImageHeight(0)-1 | |
| imageColors(0, x, y) = Point(x, y) | |
| Next | |
| Next | |
| StopDrawing() | |
| ;read pixel colors for image1 | |
| StartDrawing(ImageOutput(1)) | |
| For x = 0 To ImageWidth(1)-1 | |
| For y = 0 To ImageHeight(1)-1 | |
| imageColors(1, x, y) = Point(x, y) | |
| Next | |
| Next | |
| StopDrawing() | |
| ;compose image2 by mixing colors of image0 and image1 with influence depending on x-position | |
| CreateImage(2, ImageWidth(0), ImageHeight(0)) | |
| StartDrawing(ImageOutput(2)) | |
| For x = 0 To ImageWidth(2)-1 | |
| For y = 0 To ImageHeight(2)-1 | |
| Protected c0 = imageColors(0, x, y), c1 = imageColors(1, x, y) | |
| Protected r0 = Red(c0), g0 = Green(c0), b0 = Blue(c0) | |
| Protected r1 = Red(c1), g1 = Green(c1), b1 = Blue(c1) | |
| Protected r2 = (255 * (((r0 / 255.0) * (x/128)))) + (255 * (((r1 / 255.0) * ((128-x)/128)))) | |
| Protected g2 = (255 * (((g0 / 255.0) * (x/128)))) + (255 * (((g1 / 255.0) * ((128-x)/128)))) | |
| Protected b2 = (255 * (((b0 / 255.0) * (x/128)))) + (255 * (((b1 / 255.0) * ((128-x)/128)))) | |
| Plot(x, y, RGB(r2, g2, b2)) | |
| Next | |
| Next | |
| StopDrawing() | |
| SaveImage(2, "output.png") | |
| EndProcedure | |
| main() |
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