--- a/volume_upsample2.asm	2026-03-16 15:19:50.820204181 -0400
+++ b/volume_upsample2.asm	2026-03-16 15:19:31.707007465 -0400
@@ -254,103 +182,92 @@
 else
   mov r0.w, l(0)
 endif
-if_nz r0.w
-  utof r1.xy, r2.xyxx
-  mul r1.xy, r1.xyxx, cb3[2].zwzz
-  mul r1.xy, r1.xyxx, cb1[4].zzzz
-  mad r1.zw, -cb1[1].zzzw, l(0.000000, 0.000000, 0.500000, 0.500000), cb1[4].zzzz
-  max r1.xy, r1.xyxx, l(0.000000, 0.000000, 0.000000, 0.000000)
-  min r1.xy, r1.zwzz, r1.xyxx
-  sample_l_indexable(texture2d)(float,float,float,float) r3.xyz, r1.xyxx, t1.xyzw, s0, l(0.000000)
-  sample_l_indexable(texture2d)(float,float,float,float) r1.xyz, r1.xyxx, t2.xyzw, s0, l(0.000000)
+if_nz r0.z
+  iadd r0.xy, -r0.xyxx, r2.yxyy
+  mov r4.xy, vThreadID.xyxx
+  mov r4.zw, l(0,0,0,0)
+  ld_indexable(texture2d)(float,float,float,float) r0.z, r4.xyzw, t0.yzxw
+  not r4.xy, r0.xyxx
+  imad r0.y, r4.x, l(-9), r0.y
+  imad r0.w, r4.x, l(-9), -r4.y
+  ishl r0.w, r0.w, l(8)
+  or r0.w, r0.w, r0.y
+  imad r0.x, r0.x, l(9), -r4.y
+  ishl r0.xy, r0.xyxx, l(16, 24, 0, 0)
+  or r0.x, r0.x, r0.w
+  or r0.x, r0.y, r0.x
+  bfi r0.y, l(1), l(1), vThreadIDInGroup.y, l(0)
+  bfi r0.y, l(1), l(0), vThreadIDInGroup.x, r0.y
+  and r0.w, r0.x, l(255)
+  ld_structured r1.w, r0.w, l(0), g0.xxxx
+  add r1.w, r0.z, -r1.w
+  add r1.w, |r1.w|, l(1.192092896E-07)
+  iadd r3.w, -r1.w, l(0x7ef312ac)
+  mad r4.x, -r3.w, r1.w, l(2.000000)
+  mul r3.w, r3.w, r4.x
+  mad r1.w, -r3.w, r1.w, l(2.000000)
+  mul r1.w, r1.w, r3.w
+  mul r3.w, r1.w, icb[r0.y + 0].x
+  ld_structured r4.xyz, r0.w, l(0), g1.xyzx
+  ld_structured r5.xyz, r0.w, l(0), g2.xyzx
+  mad r0.w, r1.w, icb[r0.y + 0].x, l(1.192092896E-07)
+  ubfe r6.xy, l(8, 8, 0, 0), l(8, 16, 0, 0), r0.xxxx
+  ld_structured r1.w, r6.x, l(0), g0.xxxx
+  add r1.w, r0.z, -r1.w
+  add r1.w, |r1.w|, l(1.192092896E-07)
+  iadd r4.w, -r1.w, l(0x7ef312ac)
+  mad r5.w, -r4.w, r1.w, l(2.000000)
+  mul r4.w, r4.w, r5.w
+  mad r1.w, -r4.w, r1.w, l(2.000000)
+  mul r1.w, r1.w, r4.w
+  mul r4.w, r1.w, icb[r0.y + 0].y
+  ld_structured r7.xyz, r6.x, l(0), g1.xyzx
+  mul r7.xyz, r4.wwww, r7.xyzx
+  mad r4.xyz, r4.xyzx, r3.wwww, r7.xyzx
+  ld_structured r6.xzw, r6.x, l(0), g2.xxyz
+  mul r6.xzw, r4.wwww, r6.xxzw
+  mad r5.xyz, r5.xyzx, r3.wwww, r6.xzwx
+  mad r0.w, r1.w, icb[r0.y + 0].y, r0.w
+  ld_structured r1.w, r6.y, l(0), g0.xxxx
+  add r1.w, r0.z, -r1.w
+  add r1.w, |r1.w|, l(1.192092896E-07)
+  iadd r3.w, -r1.w, l(0x7ef312ac)
+  mad r4.w, -r3.w, r1.w, l(2.000000)
+  mul r3.w, r3.w, r4.w
+  mad r1.w, -r3.w, r1.w, l(2.000000)
+  mul r1.w, r1.w, r3.w
+  mul r3.w, r1.w, icb[r0.y + 0].z
+  ld_structured r6.xzw, r6.y, l(0), g1.xxyz
+  mad r4.xyz, r6.xzwx, r3.wwww, r4.xyzx
+  ld_structured r6.xyz, r6.y, l(0), g2.xyzx
+  mad r5.xyz, r6.xyzx, r3.wwww, r5.xyzx
+  mad r0.w, r1.w, icb[r0.y + 0].z, r0.w
+  ushr r0.x, r0.x, l(24)
+  ld_structured r1.w, r0.x, l(0), g0.xxxx
+  add r0.z, r0.z, -r1.w
+  add r0.z, |r0.z|, l(1.192092896E-07)
+  iadd r1.w, -r0.z, l(0x7ef312ac)
+  mad r3.w, -r1.w, r0.z, l(2.000000)
+  mul r1.w, r1.w, r3.w
+  mad r0.z, -r1.w, r0.z, l(2.000000)
+  mul r0.z, r0.z, r1.w
+  mul r1.w, r0.z, icb[r0.y + 0].w
+  ld_structured r6.xyz, r0.x, l(0), g1.xyzx
+  mad r4.xyz, r6.xyzx, r1.wwww, r4.xyzx
+  ld_structured r6.xyz, r0.x, l(0), g2.xyzx
+  mad r5.xyz, r6.xyzx, r1.wwww, r5.xyzx
+  mad r0.x, r0.z, icb[r0.y + 0].w, r0.w
+  iadd r0.y, -r0.x, l(0x7ef312ac)
+  mad r0.z, -r0.y, r0.x, l(2.000000)
+  mul r0.y, r0.z, r0.y
+  mad r0.x, -r0.y, r0.x, l(2.000000)
+  mul r0.x, r0.x, r0.y
+  mul r3.xyz, r0.xxxx, r4.xyzx
+  mul r1.xyz, r0.xxxx, r5.xyzx
 else
-  if_nz r0.z
-    iadd r0.xy, -r0.xyxx, r2.yxyy
-    mov r4.xy, vThreadID.xyxx
-    mov r4.zw, l(0,0,0,0)
-    ld_indexable(texture2d)(float,float,float,float) r0.z, r4.xyzw, t0.yzxw
-    not r4.xy, r0.xyxx
-    imad r0.y, r4.x, l(-9), r0.y
-    imad r0.w, r4.x, l(-9), -r4.y
-    ishl r0.w, r0.w, l(8)
-    or r0.w, r0.w, r0.y
-    imad r0.x, r0.x, l(9), -r4.y
-    ishl r0.xy, r0.xyxx, l(16, 24, 0, 0)
-    or r0.x, r0.x, r0.w
-    or r0.x, r0.y, r0.x
-    bfi r0.y, l(1), l(1), vThreadIDInGroup.y, l(0)
-    bfi r0.y, l(1), l(0), vThreadIDInGroup.x, r0.y
-    and r0.w, r0.x, l(255)
-    ld_structured r1.w, r0.w, l(0), g0.xxxx
-    add r1.w, r0.z, -r1.w
-    add r1.w, |r1.w|, l(1.192092896E-07)
-    iadd r3.w, -r1.w, l(0x7ef312ac)
-    mad r4.x, -r3.w, r1.w, l(2.000000)
-    mul r3.w, r3.w, r4.x
-    mad r1.w, -r3.w, r1.w, l(2.000000)
-    mul r1.w, r1.w, r3.w
-    mul r3.w, r1.w, icb[r0.y + 0].x
-    ld_structured r4.xyz, r0.w, l(0), g1.xyzx
-    ld_structured r5.xyz, r0.w, l(0), g2.xyzx
-    mad r0.w, r1.w, icb[r0.y + 0].x, l(1.192092896E-07)
-    ubfe r6.xy, l(8, 8, 0, 0), l(8, 16, 0, 0), r0.xxxx
-    ld_structured r1.w, r6.x, l(0), g0.xxxx
-    add r1.w, r0.z, -r1.w
-    add r1.w, |r1.w|, l(1.192092896E-07)
-    iadd r4.w, -r1.w, l(0x7ef312ac)
-    mad r5.w, -r4.w, r1.w, l(2.000000)
-    mul r4.w, r4.w, r5.w
-    mad r1.w, -r4.w, r1.w, l(2.000000)
-    mul r1.w, r1.w, r4.w
-    mul r4.w, r1.w, icb[r0.y + 0].y
-    ld_structured r7.xyz, r6.x, l(0), g1.xyzx
-    mul r7.xyz, r4.wwww, r7.xyzx
-    mad r4.xyz, r4.xyzx, r3.wwww, r7.xyzx
-    ld_structured r6.xzw, r6.x, l(0), g2.xxyz
-    mul r6.xzw, r4.wwww, r6.xxzw
-    mad r5.xyz, r5.xyzx, r3.wwww, r6.xzwx
-    mad r0.w, r1.w, icb[r0.y + 0].y, r0.w
-    ld_structured r1.w, r6.y, l(0), g0.xxxx
-    add r1.w, r0.z, -r1.w
-    add r1.w, |r1.w|, l(1.192092896E-07)
-    iadd r3.w, -r1.w, l(0x7ef312ac)
-    mad r4.w, -r3.w, r1.w, l(2.000000)
-    mul r3.w, r3.w, r4.w
-    mad r1.w, -r3.w, r1.w, l(2.000000)
-    mul r1.w, r1.w, r3.w
-    mul r3.w, r1.w, icb[r0.y + 0].z
-    ld_structured r6.xzw, r6.y, l(0), g1.xxyz
-    mad r4.xyz, r6.xzwx, r3.wwww, r4.xyzx
-    ld_structured r6.xyz, r6.y, l(0), g2.xyzx
-    mad r5.xyz, r6.xyzx, r3.wwww, r5.xyzx
-    mad r0.w, r1.w, icb[r0.y + 0].z, r0.w
-    ushr r0.x, r0.x, l(24)
-    ld_structured r1.w, r0.x, l(0), g0.xxxx
-    add r0.z, r0.z, -r1.w
-    add r0.z, |r0.z|, l(1.192092896E-07)
-    iadd r1.w, -r0.z, l(0x7ef312ac)
-    mad r3.w, -r1.w, r0.z, l(2.000000)
-    mul r1.w, r1.w, r3.w
-    mad r0.z, -r1.w, r0.z, l(2.000000)
-    mul r0.z, r0.z, r1.w
-    mul r1.w, r0.z, icb[r0.y + 0].w
-    ld_structured r6.xyz, r0.x, l(0), g1.xyzx
-    mad r4.xyz, r6.xyzx, r1.wwww, r4.xyzx
-    ld_structured r6.xyz, r0.x, l(0), g2.xyzx
-    mad r5.xyz, r6.xyzx, r1.wwww, r5.xyzx
-    mad r0.x, r0.z, icb[r0.y + 0].w, r0.w
-    iadd r0.y, -r0.x, l(0x7ef312ac)
-    mad r0.z, -r0.y, r0.x, l(2.000000)
-    mul r0.y, r0.z, r0.y
-    mad r0.x, -r0.y, r0.x, l(2.000000)
-    mul r0.x, r0.x, r0.y
-    mul r3.xyz, r0.xxxx, r4.xyzx
-    mul r1.xyz, r0.xxxx, r5.xyzx
-  else
-    mov r2.zw, l(0,0,0,0)
-    ld_indexable(texture2d)(float,float,float,float) r3.xyz, r2.xyww, t1.xyzw
-    ld_indexable(texture2d)(float,float,float,float) r1.xyz, r2.xyzw, t2.xyzw
-  endif
+  mov r2.zw, l(0,0,0,0)
+  ld_indexable(texture2d)(float,float,float,float) r3.xyz, r2.xyww, t1.xyzw
+  ld_indexable(texture2d)(float,float,float,float) r1.xyz, r2.xyzw, t2.xyzw
 endif
 store_uav_typed u1.xyzw, vThreadID.xyyy, r1.xyzz
 store_uav_typed u0.xyzw, vThreadID.xyyy, r3.xyzz