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How to draw a fluid in a gui? [UNSOLVED] I either crash, or nothing happens...


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So I have been trying to draw A fluid in a GUI, and I cant figure out how... I want it to be able to draw the fluid from any mod with the correct texture.


Any of my attempts so far have ended with a nullPointerException, or id doesn't work at all, and nothing ad drawn in the gui


Any help?

I ask complicated questions, and apparently like to write really long detailed posts. But I also help others when I can.

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IIcon icon = FluidStack#.getFluid().getIcon();

        tessellator.addVertexWithUV(0, height, 1, icon.getMaxU(), icon.getMaxV());
        tessellator.addVertexWithUV(1, height, 1, icon.getMinU(), icon.getMaxV());
        tessellator.addVertexWithUV(1, height, 0, icon.getMinU(), icon.getMinV());
        tessellator.addVertexWithUV(0, height, 0, icon.getMaxU(), icon.getMinV());

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