RenderSystem.disableDepthTest();
RenderSystem.depthMask(false);
RenderSystem.enableBlend();
RenderSystem.defaultBlendFunc();
RenderSystem.color4f(1.0F, 1.0F, 1.0F, 1.0F);
RenderSystem.disableAlphaTest();
minecraft.getTextureManager().bind(Ваш ResourceLocation);
Tessellator tessellator = Tessellator.getInstance();
BufferBuilder bufferbuilder = tessellator.getBuilder();
bufferbuilder.begin(7, DefaultVertexFormats.POSITION_TEX);
bufferbuilder.vertex(0.0D, (double)this.height, -90.0D).uv(0.0F, 1.0F).endVertex();
bufferbuilder.vertex((double)this.width, (double)this.height, -90.0D).uv(1.0F, 1.0F).endVertex();
bufferbuilder.vertex((double)this.width, 0.0D, -90.0D).uv(1.0F, 0.0F).endVertex();
bufferbuilder.vertex(0.0D, 0.0D, -90.0D).uv(0.0F, 0.0F).endVertex();
tessellator.end();
RenderSystem.depthMask(true);
RenderSystem.enableDepthTest();
RenderSystem.enableAlphaTest();
RenderSystem.color4f(1.0F, 1.0F, 1.0F, 1.0F);