I have two round objects as a part of my overall model. I will be exporting this model and using it in a game I am making.
Last time I did this, I had around 15 different objects in my model. I didn't like this for several reasons. One: I had to merge all the objects anyway before exporting, so there was no point to having separate objects. Two: I ran into issues when UV mapping where I couldn't tell what part was what because there were so many different complex objects. Three: I was worried that having invisible surfaces inside other surfaces might negatively affect the render performance of my game.
For all of the above reasons, I decided to try to remake my model as a single joined together mesh. This leads to my two questions:
Question 1 Is this even the right way of going about this? Should I be trying to create one connected mesh or should I just leave the model as a bunch of disconnected objects merged together? Why or why not?
Question 2 Assuming creating one smooth, merged model is the right way to go, how would i merge the two objects in the image below? I know how to join them, but not how to merge their vertices and delete their insides in such a way as to create a single, smooth, connected mesh.