wangkepfe / opengl-terrain-realtimerendering

OpenGL rendering engine for terrain simulation

OpenGL-Terrain-RealTimeRendering

OpenGL rendering engine for terrain simulation

Video Demo & Screen Shot

External Dependencies

1. GLEW
2. SDL

Scene Components

1. sky dome

• change with day time
• used hash noise to implement stars and remove artificial sky color border
• reference: https://github.com/kosua20/opengl-skydome

2. clouds

• shape/color changing with day time
• tried terrain-like clouds
• noise-generated texture clouds in use

3. terrain land

• procedural generated
• with geomipmap (terrain is subdivided into chunks, not the best implementation. To be improved)
• multi textures, diffrent by height and noise map

4. lake

• two frame buffer objects, one for refraction, one for reflection
• used both depth test and stencil test
• used texture noise
• bug: weird edge looking

5. plants

• a huge number of plants by instanced rendering
• particle system(to do)

Render Techniques

1. Depth/Stencil Testing

2. Alpha Blending

3. Frame Buffers

4. Instancing

5. Anti Aliasing

• MSAA, multi-sampled anti-aliasing

6. Normal mapping

7. Gamma Correction

8. HDR(high dynamic range) (to do)

9. Shadow mapping (in progress, debugging)

8. Bloom effect (to do)

11. SSAO(screen-space ambient occlusion) (to do)

12. PBR(physical based rendering) (to do)