wangkepfe/OpenGL-Terrain-RealTimeRendering

OpenGL rendering engine for terrain simulation

C++

OpenGL-Terrain-RealTimeRendering

OpenGL rendering engine for terrain simulation

Video Demo & Screen Shot

External Dependencies

GLEW
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)