QtDD12 Modern Shaderbased OpenGL Techniques Dr Sean Harmer
>> YOUR LINK HERE: ___ http://youtube.com/watch?v=VxsS7u-vgc8
Recorded at the Qt Developer Days in Berlin in 2012. • Slides available at http://qtconference.kdab.com/node/25 • Modern OpenGL abandons the old fixed-function pipeline in exchange for a programmable pipeline using shaders and buffer objects. This offers much more flexibility to developers and opens the door to a huge range of effects and techniques whilst at the same time making available huge performance improvements. • This presentation will teach you about the modern OpenGL pipeline and show how to create modern shader-based OpenGL applications with Qt 5. We will then demonstrate a selection of rendering techniques that go beyond the simple ADS-lighting model used in legacy OpenGL. Some examples that we will cover using OpenGL 3.x or 4.x: • Basic shader and buffer object usage - hello triangle • Simple phong lighting • Toon/cell shading • Ambient occlusion using texture mapping • Reflection and refraction with environment maps • Instanced geometry • Single-pass wire-frame rendering using Geometry Shaders • GPU based tessellation • Post-processing effects • Intended audience: Qt developers with an interest in OpenGL
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