OpenGL experiments

Recently I have been learning basic realtime 3D graphics using OpenGL ES 2.0, GLSL and C++. This is my first time coding anything more serious in 3D and also OpenGL! In theory this could run on any platform that supports OpenGL ES 2.0; ranging from PCs to Smart Phones. All of the content was used purely for learning purposes.

Cross-Platform window management using PowerVR VRShell.
Initialization of projection and view matrices with the help of GLM (OpengGL Mathematics).
Rendering 3x colored cubes using a single Vertex Buffer Object. Simple interpolating-color fragment shader.

Loading of image data using FreeImage. Rendering of three rotating and textured cubes.

Used Libraries: OpenGL ES 2.0, GLM, FreeImage, OOIS, Boost

World Triangles

Implemented free-fly quaternion-based camera. Rendering single-textured world.

Rendering a world with multiple different textures.

Fighting with invalid Texture UVs

Still fighting with invalid Texture UVs.

Rendering Glastheim castle entrance

Calculating per-triangle normals. Some faces aren’t calculated correctly yet because the order of triangle vertices was output wrong.

Correct triangle normals mixed with texture color.

Single-light lightening that uses the previously calculated vertex normals.

More shading. This time with a slightly red light color.

Blue light color.

The previous scene without the shading effect.

Added Specular Reflections. The bright spots.

More specular reflections. It makes the image smoother.

More specular reflections. Smooth!

Specular Reflections in Glastheim

Loading and rendering of basic models. Untextured with simple vertex normals.

Model with Smooth Vertex Normals generated by averaging triangle normals of adjacent vertices.

Rendering of multiple textured models. The orientation is still awfully wrong.

A very slightly less strange world.

Still a Strange World. Now slightly better positioned.

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