AM. Engine is a custom graphics engine written in C++ using OpenGL. It combines elements from previous engines I have build while also adding some new features.

Features:

Deferred Rendering

The basis of deferred rendering is to render each object onto a number textures on a separate Framebuffer using a geo shader One texture holds position details, one holds normal data and one holds albedo colour data. The fourth texture holds metallic, roughness and ambient occlusion data which allows support for Physical based rendering.

These textures are then processed through a Lighting Pass shader where lighting calculations are applied. This process allows many objects to be rendered at once without the bottleneck caused by forward rendering.

Randomly Generated Terrain

I have already implemented something similar to this in a previous project. However, instead of the terrain reading height values from a height map, values are now randomly generated from a psuedo-perlin noise system. Terrain tiles can be added, removed and edited from the GUI menu.

The terrain also supports the blending of up to 4 PBR materials. This is done by reading in a terrain blend map texture. The red, green, blue and black values from this texture are processed in the geo shader to determine the amount of each of the 4 registered materials to be used. Parallax mapping is also supported in the textures.

Water Rendering

A water texture is rendered onto a plane using scrolling textures to simulate ripples. The scene is rendered 2 extra times per frame onto 2 separate framebuffers to get reflections and refractions. These 2 textures are then mixed and specular reflections are added.

Physical based rendering, Assimp model loading, scene management and Level building GUI

As implemented by my previous project "Fun with PBR"

Get in touch at hello@ashmagorian.com