[1.7.10] [SOLVED] Turn off Backface Culling?

[weckar]

I've been searching for a while on it, but I'd like to turn off backface culling for certain blocks. In other words: draw all faces, including the back ones (it concerns a transparent block).

Is there an easy way to override this behavior?

[Elix_x]

isOpaqueCube()

[weckar]

I meant drawing the back faces of the transparent block. I have no issue (right now) with blocks below/behind it being rendered. Thanks though.

[Elix_x]

Are you using default block model? Not default? Custom?

[weckar]

Just a default block with custom textures, in render pass 1 if it matters at all.

[Draco18s]

Minecraft "cube" rendering system has no notion of back faces. It is simply six single-sided quads.

[weckar]

Hmmmm okay. Then probably the better question would be how I could also render the INSIDE of these quads?

[Draco18s]

Use the tessellator and do it manually, it's not that hard.

[weckar]

If I agreed with you, I wouldn't have been asking the question for two days now.

But I'll take another crack at it after work.

[weckar]

SOLVED!

 

RenderBlocks has a method called setRenderFromInside(). Set it to true to draw the inside of a block! (Overriding shouldSideBeRendered from Block to always return true may also be a good idea).

[Elix_x]

  On 9/25/2015 at 2:54 PM, weckar said:

SOLVED!

 

RenderBlocks has a method called setRenderFromInside(). Set it to true to draw the inside of a block! (Overriding shouldSideBeRendered from Block to always return true may also be a good idea).

Note on RenderBlocks.setRenderFromInside(): you should only set it to true only when your block is rendered. And after - back to false... Because otherwise ALL blocks will be rendered from inside... Which will decrease fps a lot...

[Draco18s]

  On 9/25/2015 at 6:41 AM, weckar said:

If I agreed with you, I wouldn't have been asking the question for two days now.

 

The Tessellator is just a wrapper around OGL calls, with the assumption that you want to draw quads.  Quads are just four vertices specified in a specific order (counterclockwise, iirc).  Cubes consist of 6 sides (12 if you count the inside faces) and 8 verticies.

 

Drawing each set of 4 to make a side doesn't matter what direction you draw in, because you're going to draw in both in order to get the front face and the back face anyway.

 

Anyway, glad you found setRenderFromInside().  I didn't know it existed,  and thanks to elix for mentioning the caveat.

[weckar]

  On 9/25/2015 at 4:48 PM, elix said:

Note on RenderBlocks.setRenderFromInside(): you should only set it to true only when your block is rendered. And after - back to false... Because otherwise ALL blocks will be rendered from inside... Which will decrease fps a lot...

Thanks for the pointer - and I tried it to see what it would do. Turns out - it will ONLY render the insides of all blocks. In other words, you'll notice quite quickly....