Square root calls are computationally expensive. In this case, they can be avoided. Instead of checking distance<RadA+RadB, check distance squared against (RadA+RadB) squared. The dot product of Vector3Subtract(B,A) with itself gives distance squared, so I used this code instead of an element-by-element computation of distance squared. The only downside is that your geometric code is very readable, whereas this is less so.
Users can define their custom memory management macros.
NOTE: Most external libraries support custom macros in the same way, raylib should redefine those macros to raylib ones, to unify custom memory loading. That redefinition is only implemented as example for stb_image.h in [textures] module.
Issue was related to vertex tangent attibutes not uploaded to GPU, a quick solution was implemented for new vertex attributes loading for already existing meshes... I don't like it specially but it will work for now.
This is quite a big change, Model struct has been redesigned to support multiple meshes and multiple materials, most 3d fileformats contain multiple meshes and reference multiple materials.
Consequently, multiple functions have been reviewed.
LoadOBJ(), LoadIQM(), LoadGLFT() now return a Model.
Current LoadOBJ() is not valid anymore, actually, tinyobj_loader_c library is considered for replacement.
- Added Vector3OrthoNormalize() to raymath.h - not sure if it is correct
- Implemented MeshBinormals() - Mesh struct has not a place for them...
- Updated model_material_pbr example - tested but not working on my GPU
(old Intel HD), actually, it never worked on it...
That way, a user needs only to touch a single file to configure what
features raylib is built with.
Include guards are left out intentionally, because config.h should only
be included in source files, not headers.
Later on, config.h can also define the raylib version (#461).
