YourWishes/cglm
1
0
Fork 0
mirror of https://github.com/recp/cglm.git synced 2026-08-31 11:12:48 -05:00
Code Issues Packages Projects Releases Wiki Activity

normalize: norm == 0.0f to norm < FLT_EPSILON, improving handling of very small vectors to prevent instability and overflow

Browse Source
This commit is contained in:
Recep Aslantas
2024-03-25 02:22:46 +03:00
parent 6a7d03bafb
commit 1de373a9bd
8 changed files with 30 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files
include/cglm/vec4.h
+4 -4
View File
@@ -487,7 +487,7 @@ glm_vec4_scale_as(vec4 v, float s, vec4 dest) {
float norm;
norm = glm_vec4_norm(v);
if (norm == 0.0f) {
if (CGLM_UNLIKELY(norm < FLT_EPSILON)) {
glm_vec4_zero(dest);
return;
}
@@ -918,7 +918,7 @@ glm_vec4_normalize_to(vec4 v, vec4 dest) {
/* dot = _mm_cvtss_f32(xdot); */
dot = wasm_f32x4_extract_lane(xdot, 0);
if (dot == 0.0f) {
if (CGLM_UNLIKELY(dot < FLT_EPSILON)) {
glmm_store(dest, wasm_f32x4_const_splat(0.f));
return;
}
@@ -932,7 +932,7 @@ glm_vec4_normalize_to(vec4 v, vec4 dest) {
xdot = glmm_vdot(x0, x0);
dot = _mm_cvtss_f32(xdot);
if (dot == 0.0f) {
if (CGLM_UNLIKELY(dot < FLT_EPSILON)) {
glmm_store(dest, _mm_setzero_ps());
return;
}
@@ -943,7 +943,7 @@ glm_vec4_normalize_to(vec4 v, vec4 dest) {
norm = glm_vec4_norm(v);
if (norm == 0.0f) {
if (CGLM_UNLIKELY(norm < FLT_EPSILON)) {
glm_vec4_zero(dest);
return;
}