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[rlsw] Fix clipping boundary overflow #5342

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Merged
raysan5 merged 1 commit into from
Nov 8, 2025
Merged

[rlsw] Fix clipping boundary overflow #5342

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12 changes: 6 additions & 6 deletions src/external/rlsw.h
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Original file line number Diff line number Diff line change
Expand Up @@ -2118,12 +2118,12 @@ static inline int sw_clip_##name(
// Frustum cliping functions
//-------------------------------------------------------------------------------------------
#define IS_INSIDE_PLANE_W(h) ((h)[3] >= SW_CLIP_EPSILON)
#define IS_INSIDE_PLANE_X_POS(h) ((h)[0] <= (h)[3])
#define IS_INSIDE_PLANE_X_NEG(h) (-(h)[0] <= (h)[3])
#define IS_INSIDE_PLANE_Y_POS(h) ((h)[1] <= (h)[3])
#define IS_INSIDE_PLANE_Y_NEG(h) (-(h)[1] <= (h)[3])
#define IS_INSIDE_PLANE_Z_POS(h) ((h)[2] <= (h)[3])
#define IS_INSIDE_PLANE_Z_NEG(h) (-(h)[2] <= (h)[3])
#define IS_INSIDE_PLANE_X_POS(h) ( (h)[0] < (h)[3]) // Exclusive for +X
#define IS_INSIDE_PLANE_X_NEG(h) (-(h)[0] < (h)[3]) // Exclusive for -X
#define IS_INSIDE_PLANE_Y_POS(h) ( (h)[1] < (h)[3]) // Exclusive for +Y
#define IS_INSIDE_PLANE_Y_NEG(h) (-(h)[1] < (h)[3]) // Exclusive for -Y
#define IS_INSIDE_PLANE_Z_POS(h) ( (h)[2] <= (h)[3]) // Inclusive for +Z
#define IS_INSIDE_PLANE_Z_NEG(h) (-(h)[2] <= (h)[3]) // Inclusive for -Z

#define COMPUTE_T_PLANE_W(hPrev, hCurr) ((SW_CLIP_EPSILON - (hPrev)[3])/((hCurr)[3] - (hPrev)[3]))
#define COMPUTE_T_PLANE_X_POS(hPrev, hCurr) (((hPrev)[3] - (hPrev)[0])/(((hPrev)[3] - (hPrev)[0]) - ((hCurr)[3] - (hCurr)[0])))
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