know-how

Gamma correction

ago

Gamma correction in openGL is very easily to achieve, but why do you need gamma correction? Let's keep it simple... First of all your textures you use as input for your openGL renderer are most likely in non linear color space. Your renderer on the other hand is probably calculating light under the assumption of linear color spaced color values in your loaded textures. So you might be working in two different color spaces. After your renderer is done it writes the colors to the screen, which uses non linear color space like your textures do! So what happens is, that your calculation might be visually wrong... So how can you solve this? The answer is very easy: (more…)

3D QT Engine

Switcher’s updated design part III

ago

Switcher’s development is still in progress. Visually there has not changed much yet, but internally much code has been updated. This project is now also on GitHub: QtEngine_v0_1_empty Here i am starting the engine on the actual target device for the first time. Had a small problem at the beginning Read more…

3D QT Engine

Switcher needs a new UI

ago

Well Switcher’s initial release has a very bad UI design. Here is a little preview animation rendered, that represents the new idea for the UI. It will be done without Qt’s elements and rendered in OpenGL ES 2.0.   Youtube link

3D QT Engine

Little Model viewer in work

ago

Working on a small piece of software to have a GUI and to preview Models in the engine. Screen: (The model might be familiar to the most of you. It’s betty, the first spaceship of  Gallaxy on Fire 2 and just used to have something pretty on the screen instead Read more…

3D QT Engine

Pure freedom

ago

The “Shader” class has been completely rewritten and the renderer adjusted to fit the new shader class. It is now possible to write own shaders, own rendering techniques and so on … For this freedom the shader class has to be reimplemented as own shader class with a few own Read more…