Hangout Highlights – How Exponential Numbers Affects Custom Shader Effects

Hangout Highlights – How Exponential Numbers Affects Custom Shader Effects

Corona Geek

Last week on Corona Geek Hangout 153, Steven Johnson highlighted some of the issues related to using exponentially increasing numbers to create custom shader effects.

We looked the visual representation of these “numerical issues” and talked about how to overcome hardware limitations to achieve device level precision. Steven also shared some new Corona Shader Playground examples and we looked at a 2D Shader example that implemented multi-pass shader effects.

If you missed the Hangout, here are clips to help you catch up. Watch the entire conversation, or just the parts that interest you most.

Part 1 – OpenGL Precision Overview

Part 2 – Visualizing Exponential Issues

Part 3 – Overcoming Hardware Limitations

Part 4 – Handling Precision and Scaling

Part 5 – Simulating Laser Beams

Part 6 – Shader Playground Examples

Also, be sure to catch this week’s Hangout where we talked about creating 2d shadow effects and using gravity in games.

Thank you for watching, listening, and following Corona Geek:

Charles McKeever
charles@coronalabs.com

Charles McKeever is a life long computer geek who enjoys exploring technologies to understand how they work, how they can be smashed together, and how they can be used to fuel entrepreneurial endeavors.

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