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Rendering of 3D objects based on texture


Bedrock_Miner
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Hey Guys!

 

I think you all know the Vanilla Item renderer. If the graphics are set to fancy it renders the Item in 3D with the shape based on the Alpha channel of the Item's texture. How can you use this method of rendering, for example to easily give a volume to a single face, while rendering Blocks or entities?

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It doesn't render them in 3D any more than it renders glass in 3D -- that option says whether or not to draw transparency in some common textures. If it's disabled, then there's no alpha channel so it shows up black. I believe you can specify this by overriding

Block#isOpaqueCube()

; at least it seems that way from a quick glance into the code for

BlockLeaves

.

I like to make mods, just like you. Here's one worth checking out

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I think you didn't understand me correctly.

 

An Item which is rendered in Fancy-mode or held in the player's hand is not just a flat surface. It has a volume. And this volume, or the edges of the volume, are defined by a change from alpha = 0 to alpha =255 in the Item texture. If you have a differen texture, the edges are similar to the edges of the texture, because they are generated dynamically and are not just a predefined shape. If you just say, well I create a shape like this in 3D, you can't make the shape reacting dynamically if you change the textures alpha.

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