X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=skeleton.h;h=2be9a9aaff7ac7bd8945f9b5e37ed5d0ca0ff7ff;hb=14b3d5c13faab36bd37ae27aa8c1501ba7146f89;hp=052975239bd6988290a2c731b8d4d4565fdc4b7a;hpb=aed3995840d5472275b7bf143efed7c4f9daa358;p=carveJwlIkooP6JGAAIwe30JlM.git

diff --git a/skeleton.h b/skeleton.h
index 0529752..2be9a9a 100644
--- a/skeleton.h
+++ b/skeleton.h
@@ -134,13 +134,13 @@ VG_STATIC void skeleton_sample_anim( struct skeleton *skele,
                                   float time,
                                   mdl_keyframe *output )
 {
-   float animtime = time*anim->rate;
+   f32 animtime  = fmodf( time*anim->rate, anim->length ),
+       animframe = floorf( animtime ),
+       t = animtime - animframe;
 
-   u32 frame = ((u32)animtime) % anim->length,
+   u32 frame = (u32)animframe % anim->length,
        next  = (frame+1) % anim->length;
 
-   float t = vg_fractf( animtime );
-
    mdl_keyframe *base  = anim->anim_data + (skele->bone_count-1)*frame,
                 *nbase = anim->anim_data + (skele->bone_count-1)*next;
 
@@ -165,7 +165,8 @@ typedef enum anim_apply
 {
    k_anim_apply_always,
    k_anim_apply_defer_ik,
-   k_anim_apply_deffered_only
+   k_anim_apply_deffered_only,
+   k_anim_apply_absolute
 }
 anim_apply;
 
@@ -203,6 +204,18 @@ int should_apply_bone( struct skeleton *skele, u32 id, anim_apply type )
 VG_STATIC void skeleton_apply_pose( struct skeleton *skele, mdl_keyframe *pose,
                                     anim_apply passtype )
 {
+   if( passtype == k_anim_apply_absolute ){
+      for( u32 i=1; i<skele->bone_count; i++ ){
+         mdl_keyframe *kf = &pose[i-1];
+
+         v3f *posemtx = skele->final_mtx[i];
+
+         q_m3x3( kf->q, posemtx );
+         v3_copy( kf->co, posemtx[3] );
+      }
+      return;
+   }
+
    m4x3_identity( skele->final_mtx[0] );
    skele->bones[0].defer = 0;
    skele->bones[0].flags &= ~k_bone_flag_ik;
@@ -233,6 +246,18 @@ VG_STATIC void skeleton_apply_pose( struct skeleton *skele, mdl_keyframe *pose,
    }
 }
 
+/* 
+ * Take the final matrices and decompose it into an absolute positioned anim
+ */
+VG_STATIC void skeleton_decompose_mtx_absolute( struct skeleton *skele, 
+                                                mdl_keyframe *anim ){
+   for( u32 i=1; i<skele->bone_count; i++ ){
+      struct skeleton_bone *sb = &skele->bones[i];
+      mdl_keyframe *kf = &anim[i-1];
+      m4x3_decompose( skele->final_mtx[i], kf->co, kf->q, kf->s );
+   }
+}
+
 /* 
  * creates the reference inverse matrix for an IK bone, as it has an initial 
  * intrisic rotation based on the direction that the IK is setup..