Hello! I recently tried to render an AxisAlignedBoundingBox, did a bit of research on rendering, and coded a bit, only to find out

that the code I ended up with doesn't work. I get less FPS, but not a single AABB is rendered.

@EventBusSubscriber(bus = Bus.FORGE, modid = References.MODID, value = Dist.CLIENT)
public class AABBDebug
{
	@SubscribeEvent
	public static void onRender(RenderWorldLastEvent event)
	{
		if(Minecraft.getInstance().world != null)
		{
			ArrayList<StructureData> structures = StructureDataHandler.getStructures(Minecraft.getInstance().world);
			if(structures == null)
				return;
			for(StructureData data : structures)
			{
		        IRenderTypeBuffer.Impl buffer = Minecraft.getInstance().getRenderTypeBuffers().getBufferSource();
		        IVertexBuilder builder = buffer.getBuffer(RenderType.LINES);
		        MatrixStack matrixStack = event.getMatrixStack();

		        PlayerEntity player = Minecraft.getInstance().player;
		        double x = player.lastTickPosX + (player.getPosX() - player.lastTickPosX) * event.getPartialTicks();
		        double y = player.lastTickPosY + (player.getPosY() - player.lastTickPosY) * event.getPartialTicks();
		        double z = player.lastTickPosZ + (player.getPosZ() - player.lastTickPosZ) * event.getPartialTicks();

		        matrixStack.push();
		        matrixStack.translate(-x, -y, -z);
		        WorldRenderer.drawBoundingBox(matrixStack, builder, data.aabb.minX, data.aabb.minY, data.aabb.minZ, data.aabb.maxX, data.aabb.maxY, data.aabb.maxZ, 1.0f, 1.0f, 1, 1);
		        matrixStack.pop();
		        RenderSystem.disableDepthTest();
		        buffer.finish(RenderType.LINES);
			}
		}
	}
}

Thanks for any help

Ah, I see where my problem was. I used the wrong AxisAlignedBoundingBox. I should have offset it by it's position.

@EventBusSubscriber(bus = Bus.FORGE, modid = References.MODID, value = Dist.CLIENT)
public class AABBDebug
{
	@SubscribeEvent
	public static void onRender(RenderWorldLastEvent event)
	{
		if(Minecraft.getInstance().world != null)
		{
			System.out.println("Rendering...");
			ArrayList<StructureData> structures = StructureDataHandler.getStructures(Minecraft.getInstance().world);
			if(structures == null)
				return;
			for(StructureData data : structures)
			{
				AxisAlignedBB aabb = data.getTranslatedAABB();
				RenderSystem.lineWidth(10.0f);
		        IRenderTypeBuffer.Impl buffer = Minecraft.getInstance().getRenderTypeBuffers().getBufferSource();
		        if(buffer == null)
		        	return;
		        IVertexBuilder builder = buffer.getBuffer(RenderType.LINES);
		        MatrixStack matrixStack = event.getMatrixStack();
		        PlayerEntity player = Minecraft.getInstance().player;
		        double x = player.lastTickPosX + (player.getPosX() - player.lastTickPosX) * event.getPartialTicks();
		        double y = player.lastTickPosY + (player.getPosY() - player.lastTickPosY) * event.getPartialTicks();
		        double z = player.lastTickPosZ + (player.getPosZ() - player.lastTickPosZ) * event.getPartialTicks();

		        matrixStack.push();
		        matrixStack.translate(-x, -y, -z);
		        WorldRenderer.drawBoundingBox(matrixStack, builder, aabb.minX, aabb.minY, aabb.minZ, aabb.maxX, aabb.maxY, aabb.maxZ, 1.0f, 1.0f, 1.0f, 1.0f);
		        matrixStack.pop();
		        RenderSystem.disableDepthTest();
		        buffer.finish(RenderType.LINES);
			}
		}
	}
}