Read and display of models in PMD format

Read and display of models in PMD format

It has been May, and it took more than ten days to study the results. Write a log to commemorate it.
It is a three-dimensional model format and is mainly used in mikumikudance and pmdeditor. There are fewer descriptions about the format, so my research mainly involves the MMD library of itsuhane.
The PMD format file is also a simple binary file, because the file format is strict, so the chunk in the file is not very free, it is better to parse. The VMD file (Vocaloid motion data) describes the model action and requires interpolation of the model skeleton to achieve the animation effect. Since there may be no time after writing this log, therefore, we have not made any in-depth research on the components of PMD illumination, material, skeleton, and VMD.
Original blog, prohibit unauthorized reprint (original blog address: http://blog.csdn.net/jiangcaiyang123/article/details/8898734 ).
DemoProgram: Here

The following is the program's:

The default load here is Luo Tianyi's model. Of course, the program includes the initial speaker and the mirror speaker) kaito and so on can be loaded (a small problem still occurs when loading these models, and then carefully look at the format instructions to know that some work und is required to load the Models correctly ).
The program is built using the QT framework and OpenGL rendering. In addition, it uses the QT state machine framework and animation framework. Here, the effect of the "fly in" and "disappear" will be explained in a separate log. Due to limited knowledge, OpenGL rendering remains at the glbegin ()/glend () level, and I do not know why it is unsuccessful for Qt programs to use multi-sample anti-aliasing. If you do not know this, you will not be able to start this program in ubuntu13.04( the luo_eye.bmp file cannot be loaded). I hope to improve it in the next version.

The following is the Black History of the production of this program. It seems terrible now.

#1 texture not processed

#2. The texture is not properly processed ......

#3 terrible! Zookeeper has no eyes!

#4 the texture coordinate is incorrect even though the texture is available

#5 draw with only line segments, which is really like abstract painting

#6 view Luo Tianyi ...... O (> others <) O