edgevoid/armorpaint
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases 1 Wiki Activity

base: add mat4_tween

Browse Source
This commit is contained in:
luboslenco
2026-06-02 12:35:05 +02:00
parent 3dd6b3b104
commit 88222b1d83
2 changed files with 10 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
base/sources/iron_math.c
+9
View File
@@ -601,6 +601,15 @@ mat4_t mat4_compose(vec4_t loc, quat_t rot, vec4_t scl) {
return m;
}
mat4_t mat4_tween(mat4_t a, mat4_t b, float t) {
mat4_decomposed_t *da = mat4_decompose(a);
mat4_decomposed_t *db = mat4_decompose(b);
vec4_t loc = {da->loc.x + t * (db->loc.x - da->loc.x), da->loc.y + t * (db->loc.y - da->loc.y), da->loc.z + t * (db->loc.z - da->loc.z), 1.0f};
vec4_t scl = {da->scl.x + t * (db->scl.x - da->scl.x), da->scl.y + t * (db->scl.y - da->scl.y), da->scl.z + t * (db->scl.z - da->scl.z), 1.0f};
quat_t rot = quat_slerp(da->rot, db->rot, t);
return mat4_compose(loc, rot, scl);
}
mat4_decomposed_t *mat4_decompose(mat4_t m) {
vec4_t loc;
quat_t rot;
base/sources/iron_math.h
+1
View File
@@ -144,6 +144,7 @@ mat4_t mat4_persp(float fov_y, float aspect, float zn, float zf);
mat4_t mat4_ortho(float left, float right, float bottom, float top, float znear, float zfar);
mat4_t mat4_rot_z(float alpha);
mat4_t mat4_compose(vec4_t loc, quat_t rot, vec4_t scl);
mat4_t mat4_tween(mat4_t a, mat4_t b, float t);
mat4_decomposed_t *mat4_decompose(mat4_t m);
mat4_t mat4_set_loc(mat4_t m, vec4_t v);
mat4_t mat4_from_quat(quat_t q);