Although this doesn't look as good as the PCF version it is a lot less calculation intensive and therefore more suitable for weaker hardware.
It also tends to bleed through walls a lot less.
Add smoothGroup member to OBJFace struct, and assign the current smooth group number to it
Move face normal calculation code to CalculateNormalFlat
Add AddVertFaces method, which initializes and populates the vertFaces array of arrays, which holds references to triangle references per vertex
Only initialize and populate vertFaces if the model has missing normals and smooth groups
Assign smooth groups to triangle data
Add CalculateNormalSmooth method, which calculates the normals for each face the vertex is attached to, depending on whether or not the faces are part of the given smooth group, and averages them out
Add OBJTriRef struct, which holds references to triangles on OBJ surfaces
Make {agg,cur}SurfFaceCount unsigned ints
Change nvec to a value instead of a pointer
They would also pass the test if a menu just was open but not the actual invoker.
Also error out if this happens so that modders can see that they are doing unsupported things. Silent failure is not a good idea here.
(This clearly shows that using 'long' as parameters in any interface must be stopped. It is fundamentally unsafe to have a type whose size is not reliable - it's either an int-sized nor a pointer sized value, depending on the platform, and essentially worthless.)
Legacy used some strange blending formula to calculate its colormaps for colored 3D floor lighting, this is not available in the software lighting mode, so for these the engine has to temporarily revert to light mode 2 to render them correctly.
These were caused by some bogus comment in the original compatibility.txt which erroneously added a "SPAC_PCross" remark to a line which actually set "SPAC_Cross".
For this to work the 2D mode has to be properly set and unset at the right places so that no double mapping occurs and no render operation can happen while in 2D mode.
# Conflicts:
# src/d_main.cpp
# src/v_video.h
Pass surf->vbStart to SetupFrame instead of 0, and pass 0 to DrawArrays instead of surf->vbStart.
Use a potentially faster method of modifying the OBJ file text buffer by modifying it directly.
Add RealignVector and FixUV methods to begin work on re-aligning OBJ models to the same orientation as MD3 models.
Re-align OBJ models to match MD3 models
Fix normal calculation for re-aligned OBJs
Ensure AddSkins does not go out of bounds of surfaceskinIDs
Do not precache skins that were replaced by the user.
Fix OBJs with a large number of materials not being fully rendered
Print a warning message if a material referenced by the OBJ could not be found.
Free surface triangles once they are no longer needed
Also, use continue instead of return so that surfaces after those with missing materials are still rendered.
Fail if a face side has no vertex reference. Vertex references are required for a valid OBJ.
Clean up OBJ model code
Remove commented code, mainly Printf's that aren't used any more.
Add more documentation comments, and tweak existing documentation comments
Replace ParseVector2 and ParseVector3 with a template ParseVector function
