Rendering Process of producing “realistic” images or pictures

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Presentation transcript:

Rendering Process of producing “realistic” images or pictures Elements: Electromagnetic Radiation Materials (optical properties) Human visual system Light Eyes (Detectors) Light-Material interaction

Rendering Classification 1. Photo-Realistic Rendering - Electromagnetic/Quantum Theory 2. Non-Photo-Realistic Rendering 3. Scientific Visualization Rendering 2. Techniques 2.1 Surface Rendering 2.2 Volume Rendering 2.3 Image Based Rendering 2.4 Texture Based Rendering

Photo-Realistic Rendering

Texture Effects

Reflection, Shadows and Refraction effects

Non-Photorealistic Rendering

Scientific Visualization Rendering

Volume Rendering Voxels Display Ilumination Model Data Structurel

Volume Rendering Espectral

Texture Based Rendering

Image-Based Rendering

Image-Based Rendering

Light-Surface Interaction Absortion, Reflexion and Transmission Reflexion: Diffuse and Specular Simple Model Ambient Contribution:

Shading for Polygonal Surfaces Flat Shading Simple Local Ilumination Model:

Gourand Shading

Phong Shading

Shading Stytes Faceted Gouraud Phong

3D Visualization Model: Without transparency, shadows and global effects Clipping 3D Hidden Surfaces Projection Clipping 2D Scan conversion Shadding for each pixel Display the result

Global Illumination Model by Ray Tracing

Rendering Effects Refraction Shadows Light source, spectral effects, etc

Texture Effects

Ray Tracing with Global Illumination Model Reflection, Shadows and Refraction effects

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