Simple Prop Workflow

 

This is not so much a tutorial but rather a very brief breakdown of the process I use to create a simple prop. I'll go over what is meant by each step and share some useful resources along the way.

The steps I follow are :

• Planning
• Blocking
• Modeling (High + Low poly)
• Share your work
• UV Unwrapping
• Texture Baking
• Texturing
• Final Delivery

You can find the prop I created in this breakdown here : wooden_hammer_01

Lets het started

Planning

This is not a drill... No really it's not a drill.

Collect information and reference images for the prop you want to make.

• Get reference for multiple variations of the prop so that you can find different elements to combine to make your work more unique.
• Look for reference of the materials the prop is constructed from.
• Research the size and dimensions.
• Research how the prop is made, assembled and useed.

Take time to understand your prop cevouse that understanding will shine through in the details and sell realism.

You can arrange these resources in a mood board or stick them in a folder on your hard drive whichever way suits you.

Tools like PureRef are a great way to organise your image references on a board, allowing you to pan, zoom and view multiple references at once.

Blocking

Use very basic shapes to build a mock up version of the prop.

The aim here is to create capture the core idea for your prop.

Explore! You can try and play with multi^ple ideas to see what works best.

Pay close attention to the silhouette, proportions and shapes that define the prop.

Keep it simple and don't get too carried away with the details.

Modeling

Time to model the prop. Follow your blocking model to refine the shapes and geometry to match the idea or reference you were following.

You don't have to model everything.

There are other ways to add detail to your prop other modeling it all in.

One way to add detail by using normal, bump maps or stamps in the texturing process like i did on this prop with the PH logo impprinted into the metal on the hammer.

If you would like to take things a step further and include a lot of detail in your model, you can make use of a high poly low poly workflow. 

*Although I could have optomised the geometry more for this prop, I instead kept the supporting edge loops so that the model can be subdivided later if it's required.

(Optional) High Poly + low Poly

Though it's not always necessary, I recommend you make use of a high poly to low poly setup. This method allows you to create a much higher detailed model through things like sculpting, bevels and subdivisions. You then bake thatinformation down to a normal map on a low poly retopologiesed model that is more optomised and manageable.

To make use of this method you need to create 2 versions of your prop. One that will contain all the details that are too small to consider keeping as geometry information and anather model that will serve as the final, more optomised, geometry. You can then use one of the software's mentioned in the upcoming baking step to generate your baked texture maps.

Adding damage, wear, chips and cracks are all very common reaasons to use this workflow.

If you have created a high and low poly version of the model you will need to UV unwrap the low poly and continue with the baking step.

Checkout this walkthrough for optomising low poly model.

Share your work.

Sometimes you can go off track when looking at something too closely for a long time. You might not see what some one else does.

Feedback is one of the top ways to grow as an artist. You never know what you might learn and sometimes you'll discover something new when searching for something to help someone else.

When working on something new, you definitely should start finding feedback sooner rather than later since finding out there is a fundamental problem which could take a lot of effort to fiw is definitely discouraging.

I highly encourage you post on forum like Noor-Artificiel Community, Polycount or discord communities and ask people what they think.

UV Unwrapping

You will need to UV unwrap your model and prepare it for the texturing phase. 

This process can sometimes be quite in depth and other times it can be very simple.

There are many factors to consider, so here are some UV Unwrapping Tips for blender.

Some things to be aware of for a prop like this:

• I would avoid overlapping UV islands
• Make sure there is a decent amount of space between the islands
• Ensure there is no stretching.
• The texel density is consistent.

One way to check for stretching and if the texel density is consistent, is to use a checkeer texture, like the one shown on the hammer, and making sure the squares retain their shape. The size of the squares should be somewhat consistent across the model though some slight inconsistency is acceptable and sometimes unavoidable.

You might want to spend time laying out the UV islands in a way that makes sense for how you plan to texture it. For example, laying the wooden handle pieces in the same direction making it easier to add a wooden texture to the handle since the wood grain will follow in the same direction.

(Optional) Texture Baking

This step is used to bake down the details from your high poly model to normal map information.

Though there are others, generally the types of texture maps that can be generated from baking are :

• Normal maps
• Ambient Occlusion
• Curvature
• Height

In Softwares like Substance Painter Baked texture maps like curvature and ambient occlusion could be used in procedural generators for things like edge demages or dirt and grime buildup.

Please note that baking normals is an extensive topic and each software might have different controls and features. At Poly Haven we mostly use a mix of Marmoset Toolbag and Substance Painter to bake our normals and other textures but baking in free software's like Blender or Xnormal are an option.

Here is a beginner tutorial for simple baking in blender.

For baking in Substance painter.

And one for fixing baking issues in Substance Painter.

This is a very useful in depth resource for infoormation about normal map baking.

Texturing

Nearly there!

At this step we want to start giving the models' surface some materials. For most of the models at Poly Haven we use Substance Painter to texture them, but there are other softwares like Mari, ArmorPaint, 3D Coat and Quixel's Mixer.

Personally I recommend Substance Painter based on the quick and easy results that you can achieve. There is also plenty of learning resources available.
Make use of free trials if they are available and you are not sure which software you want to use.

I always begin with adding the base materials and refining them while checking the model in different light setups to get close to their real world counterparts.

As mentioned before, we can add some of the details that were too small to be modeled. I added the PH stamp into the metal here.

Next you can add some gradients, more abvious areas of wear, dirt buildup or rust and lastly, you can add the finishing touches like small scratches and surface dust.

This tutorial by jason Ord, Substance Painter : Pushing Your Texturing Further, is a phenomenal resource in how to approach a realistic texture workflow.

Time to export your textures.

To keep it simple, I use PNG's exported at 16bit.

There are many file types to chose from, each with their own technical pro's and con's so be sure to do some research to find out which filetype and settings would suit your needs best.

Final Delivery

Nailed it.

and now it's finished right ?

well... Just one last thing.

Something that is often highly understated is the file format's and folder structures.

For folder there are really only two thing. Keep it simple and neat.

I recommend exporting your asset into a few file formats including FBX or OBJ.

Reasons for this is in the case you can no longer open the working file from the software you were using, you'd be able to import one of those other files into a different software instead. It also saves you from having to open your software and export it later if you end up needing it anyway.

Presentation

It's hammer time...

We put so much work in so we might as well show it all off. Do some renders and highlight some of the best parts of your prop. You can use this as an opportunity to learn or practice your skills in scene composition, lighting and post production.

and that concludes things. I hope this was informative and that can help clear up what process you can follow when looking to make a high quality prop.

Some more resources

For info on our internal technical standards PolyHaven Model Technical Standards

If you are looking for a more in-depth step by step quide, I highly recommend taking a look at some of these other free tutorial resources.

• TV and cabinet - 3D Max
• Fire Hydrant - 3D Max
• Intro to blender for Game Art - Blender
• UV Island Margines - Blender
• Modeling & Unwrapping a game ready Flashbang
• Baking textures in blender - Blender

If you know of more that you think other might find useful, let us know abd we will add it to the list.