Rapid Worldbuilding with ProBuilder

Real Quick Prototyping Demo

• Main Probuilder window (found by going to tools>probuilder>probuilder window) – has tools and Probuilder is designed so that you can ignore it when you’ a new to using Probuilder
• Face, Object, etc. mode – will allow you to touch only the variable selectable
• A good way to learn the tool is to go through the main probuilder window and check the shortcuts
• It really helps to keep things as simple as possible from the get go. Don’t add tons of polys
• Shape selector will help you quickly make stuff
• Connect edges and insert edge loop
• Holding shift to grab multiple
• ‘R’ will give you scale mode
• Extrude is a fantastic way to add geometry
• Grid Size – keep at 1 for 1 meter this is important for avoiding mistakes when creating geo and knowing your angles
• Use the ortho top down view to see if your geo fits your grid
• Detach face settings is a way to split geo selected but it’s still part of your item
• Detach face using a different setting to create a new game object
• Pivot point needs to be rejigged often (solutions: object action or set it to a specific element using “Center Pivot”)
• center pivot and put it on the grid by using progrids
• Settings changes become the default
• Use the Poly Shape tool to spin up a room + extrude quickly
• Merge objects
• think in terms of Quads
• try selecting to vertices and connect (Alt + E) them
• select hidden as a toggle is a great option, because in 3D you are seeing an orthographic projection so you will click on the thing that is drawn closest to the camera!
• Crafting a doorway, can be done using extrude and grid meter changes, toggle the views (X, Y, and Z) to help with that
• hold v to make geo snap; this will save you time later on
• Alt+C will collapse verts (as in the ramp option where the speaker started with a cube)
• Weld vs. Collapse — weld great for merging to hallways, or collapse which is more like pushing all verts within a specific distance together
• Grow selection and smooth group

Polybrush Stuff

• Add more detail with loops or subdivide (smart connect)
• Polybrush will let you sculpt, smooth, texture blend, scatter objects, etc.
• Modes like smoothing
• todo explore something prefabs
• N-gons are bad because everything is made up of tris

Texturing stuff

• By default, everything is on auto which means that on in-scene handles toggle
• When you’re prototyping this allows you to not use fancy toolbar stuff

Question

• Why is progrids helpful? Short answer: if you’re not super familiar with 3D modeling and creation software (i.e. Maya) you can create simple geo without leaving Unity editor.
• Why would you be obsessive about making sure your geo fits your 1 meter grid size? Short answer: This helps you avoid errors with geo creation such as horrid angles and hidden faces.
• Can you talk a little bit about automation with Probuilder?