8/14/2023 0 Comments Blender translucent vs transparentTo set up a transparent material in Blender using the alpha channel of an RGBA image (Red/Green/Blue/Alpha), first make sure a suitable image is available that includes an appropriate alpha channel or mask.ĭesign note: alpha, or the degree to which something appears transparent or opaque, is generally defined by grey-scale values, typically black represents 100% transparent, white 100% opaque, grey determining degrees of transparency between the two extremes (transparency can be understood as ‘transparency’ or ‘opacity’, the language used then changing what the percentages might mean, i.e. This is the ‘ A‘ aspect of an ‘ RGBA‘ bitmap image (e.g. Using these types of transparent images in Blender, where the degree of opacity is essential controlled externally to Blender, is a two part process 1) a basic node-based Material is created which is then, 2) modified in Material Properties to activate the property (transparency being a ‘property’ of the image and subsequent material its associated with).Ībove (in Affinity) the ‘alpha’ (channel) element of a simple (orange blend) image is shown as grey-scale values when selected in the Channels Inspector. *.tga, *.png support alpha channels whereas *.jpg doesn’t. Real-time preview in the 3D View and other modes where objects can be seen will differ depending on system graphics capabilities, the above for example was rendered by a Radeon HD 6700M with ‘Hashed’ blending, the header image an Intel HD 4400 which had some difficulty correctly rendering internal faces ( backface culling) and shadows.ĭownload: Node base alpha example file (*.zip c.2 MB).ĭesign note: all the more commonly used image editors, Adobe Photoshop, GIMP, Affinity,, Krita et al, are capable of generating alpha channels/masks but will differ in how this is done in practice, subject to format support, e.g. Important: Blender being able to properly and correctly render transparent surfaces is dependent on a number of criteria including but not limited to the application itself, system graphics and/or rendering capabilities therein. For real-time, live or game-related content creation using ( Eevee Render Engine), transparency is typically achieved through use of a separate mask image, or more commonly, the alpha channel of a standard compatible RGB image (Red/Green/Blue), that is the A component (/Alpha) of a typical 24 bit RGB A image. There are a number of ways to generate or create transparent materials in Blender.
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