MrMonopoly/raylib
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

add quick notes about line clipping algorithms used

Browse Source
This commit is contained in:
Bigfoot71 2025-03-19 02:19:28 +01:00
parent fe600a5ea1
commit 268a410a13
1 changed files with 2 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/external/rlsw.h vendored
View File

@ -1856,6 +1856,7 @@ static inline uint8_t sw_line_clip_encode_2d(const float screen[2], int xMin, in
return code;
}
// Cohen-Sutherland algorithm, faster but for 2D only
static inline bool sw_line_clip_2d(sw_vertex_t* v1, sw_vertex_t* v2)
{
int xMin = RLSW.vpMin[0];
@ -1931,6 +1932,7 @@ static inline bool sw_line_clip_coord_3d(float q, float p, float* t1, float* t2)
return 1;
}
// Liang-Barsky algorithm variant, more robust but slightly slower
static inline bool sw_line_clip_3d(sw_vertex_t* v1, sw_vertex_t* v2)
{
// TODO: Lerp all vertices here, not just homogeneous coordinates