My FastTESR

package com.tigres810.adventurermod.blocks.pipes.fasttesr;

import org.lwjgl.opengl.GL11;

import com.tigres810.adventurermod.blocks.pipes.tileentity.TileEntityFluxPipe;
import com.tigres810.adventurermod.init.ModBlocks;
import com.tigres810.adventurermod.init.ModFluids;

import net.minecraft.client.Minecraft;
import net.minecraft.client.renderer.BufferBuilder;
import net.minecraft.client.renderer.GlStateManager;
import net.minecraft.client.renderer.Tessellator;
import net.minecraft.client.renderer.texture.TextureAtlasSprite;
import net.minecraft.client.renderer.texture.TextureMap;
import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
import net.minecraft.util.ResourceLocation;
import net.minecraftforge.client.model.animation.FastTESR;
import net.minecraftforge.fluids.Fluid;
import net.minecraftforge.fluids.FluidStack;

public class FluxPipeFastTESR extends FastTESR<TileEntityFluxPipe> {

	@Override
	public void renderTileEntityFast(TileEntityFluxPipe te, double x, double y, double z, float partialTicks, int destroyStage, float partial, BufferBuilder buffer) {
		if(te == null) return;

		GlStateManager.pushMatrix();
        GlStateManager.disableRescaleNormal();
        GlStateManager.color(1, 1, 1, 1);
        GlStateManager.disableBlend();
        GlStateManager.translate((float) x, (float) y, (float) z);

        bindTexture(TextureMap.LOCATION_BLOCKS_TEXTURE);
        renderFluid(te, x, y, z);

        GlStateManager.popMatrix();
	}

	private void renderFluid(TileEntityFluxPipe te, double x, double y, double z) {
		if (te == null) {
            return;
        }

        FluidStack fluid = new FluidStack(ModFluids.FLUX_FLUID, 1);

        Fluid renderFluid = fluid.getFluid();
        if (renderFluid == null) {
            return;
        }

        float scale = fluid.amount / te.getMaxEnergyStored();
        System.out.println(scale);

        if (scale > 0.0f) {
            Tessellator tessellator = Tessellator.getInstance();
            BufferBuilder renderer = tessellator.getBuffer();
            ResourceLocation still = renderFluid.getStill();
            TextureAtlasSprite sprite = Minecraft.getMinecraft().getTextureMapBlocks().getAtlasSprite(still.toString());

            net.minecraft.client.renderer.RenderHelper.disableStandardItemLighting();

            GlStateManager.color(1, 1, 1, .5f);
            renderer.begin(GL11.GL_QUADS, DefaultVertexFormats.POSITION_TEX_COLOR);

            float u1 = sprite.getMinU();
            float v1 = sprite.getMinV();
            float u2 = sprite.getMaxU();
            float v2 = sprite.getMaxV();

            tessellator.draw();

            // Top
            renderer.pos(x, scale + y, z).tex(u1, v1).color(255, 255, 255, 128).endVertex();
            renderer.pos(x, scale + y, 1-z).tex(u1, v2).color(255, 255, 255, 128).endVertex();
            renderer.pos(1-x, scale + y, 1-z).tex(u2, v2).color(255, 255, 255, 128).endVertex();
            renderer.pos(1-x, scale + y, z).tex(u2, v1).color(255, 255, 255, 128).endVertex();

            // Bottom
            renderer.pos(1-x, y, z).tex(u2, v1).color(255, 255, 255, 128).endVertex();
            renderer.pos(1-x, y, 1-z).tex(u2, v2).color(255, 255, 255, 128).endVertex();
            renderer.pos(x, y, 1-z).tex(u1, v2).color(255, 255, 255, 128).endVertex();
            renderer.pos(x, y, z).tex(u1, v1).color(255, 255, 255, 128).endVertex();

            // Sides
            renderer.pos(x, scale + y, 1-z).tex(u1, v1).color(255, 255, 255, 128).endVertex();
            renderer.pos(x, y, 1-z).tex(u1, v2).color(255, 255, 255, 128).endVertex();
            renderer.pos(1-x, y, 1-z).tex(u2, v2).color(255, 255, 255, 128).endVertex();
            renderer.pos(1-x, scale + y, 1-z).tex(u2, v1).color(255, 255, 255, 128).endVertex();

            renderer.pos(1-x, scale + y, z).tex(u2, v1).color(255, 255, 255, 128).endVertex();
            renderer.pos(1-x, y, z).tex(u2, v2).color(255, 255, 255, 128).endVertex();
            renderer.pos(x, y, z).tex(u1, v2).color(255, 255, 255, 128).endVertex();
            renderer.pos(x, scale + y, z).tex(u1, v1).color(255, 255, 255, 128).endVertex();

            renderer.pos(1-x, scale + y, 1-z).tex(u2, v1).color(255, 255, 255, 128).endVertex();
            renderer.pos(1-x, y, 1-z).tex(u2, v2).color(255, 255, 255, 128).endVertex();
            renderer.pos(1-x, y, z).tex(u1, v2).color(255, 255, 255, 128).endVertex();
            renderer.pos(1-x, scale + y, z).tex(u1, v1).color(255, 255, 255, 128).endVertex();

            renderer.pos(x, scale + y, z).tex(u1, v1).color(255, 255, 255, 128).endVertex();
            renderer.pos(x, y, z).tex(u1, v2).color(255, 255, 255, 128).endVertex();
            renderer.pos(x, y, 1-z).tex(u2, v2).color(255, 255, 255, 128).endVertex();
            renderer.pos(x, scale + y, 1-z).tex(u2, v1).color(255, 255, 255, 128).endVertex();

            net.minecraft.client.renderer.RenderHelper.enableStandardItemLighting();
	}
	}

}