Analytical-Displacement-Mapping

Implementation of analytic displacement mapping using hardware tessellation based on Nießner & Loop (2013)

Code

The components of the application related to analytical displacement mapping:

• tessrenderer.cpp - The main renderer class for tessellation
• procedural.glsl - Procedural generation of displacement coefficients
• displace.vert - Vertex Shader for displacement mapping
• displace.tesc - Tessellation Control Shader for displacement mapping
• displace.tese - Tessellation Evaluation Shader for displacement mapping
• displace.frag - Fragment Shader for displacement mapping

Overview of main features

Procedural textures:

• Bubblewrap
• Pinhead
• Chocolate bar
• Random

Normal types:

• Interpolated normals
• Approximate normals
• True normals

Shading:

• Phong shading (see examples above)
• Normal shading (Visualization for all types of normals)
• Approximation Error (Error of approximate errors compared to true normals)

Level-of-Detail:

• Screen-based edge length level-of-detail