Corona Geek #150 – Custom Vertex Shader Effects and More Playground Examples

On today’s Corona Geek Hangout, Steven Johnson introduced us to vertex shaders as part 2 of our introduction the topic of creating and working with custom shader effects. We looked at several working shader playground examples and learned a tip for using wireframe mode with display.setDrawMode to see the points of a polygon in a vertex shader example.

Corona Geek Hangout #150

From the Forum — Issue #80

Welcome to the latest installment of From the Forum. In this series, guest blogger Alex Jackson highlights outstanding threads from the Corona Forum. The goal is to bring attention to the most captivating, interesting, and thought-provoking discussions taking place in our very own backyard.

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Hangout Highlights – Creating Motorized Wheeled Carts

Last week on Corona Geek Hangout 148, we stepped through the concepts and source code to create a motorized wheeled cart using pivot joints and Corona’s built in physics engine. We also explored applying torque and gravity to the cart to get some interesting effects. Here are clips to help you catch up. Download the examples from the Hangout to see how everything works.

Corona Geek Hangout Snippets

Corona Geek #148 – Creating Motorized Wheeled Carts Using Pivot Joints

On today’s Corona Geek Hangout we learned how to build a motorized wheeled cart using Corona’s built-in physics engine and pivot joints. We explored why you should consider adding display objects to a group and how torque affects different parts of a wheeled physics simulation. We also explored ideas for using a wheeled cart in a game. Download the source code from today’s discussion.

Corona Geek Hangout #148