344,7 → 344,8 |
ret |
endp |
|
;ãáâ ®¢ª ®à¬ «¥© ¤«ï £à ¥© |
;description: |
; ¢ëç¨á«¥¨¥ ®à¬ «¥© ¤«ï £à ¥© ¯® 3-¬ ¢¥àè¨ ¬ |
align 4 |
proc obj_set_normals, o_data:dword |
locals |
396,76 → 397,56 |
;v1 <-> v2 |
fld dword[edi+12] |
fsub dword[edi] |
fstp dword[esi] ;(x1-x2) |
fstp dword[esi] ;(x2-x1) |
fld dword[edi+16] |
fsub dword[edi+4] |
fstp dword[esi+4] ;(y1-y2) |
fstp dword[esi+4] ;(y2-y1) |
fld dword[edi+20] |
fsub dword[edi+8] |
fstp dword[esi+8] ;(z1-z2) |
fstp dword[esi+8] ;(z2-z1) |
;v2 <-> v3 |
fld dword[edi+24] |
fsub dword[edi+12] |
fld dword[edi+12] |
fsub dword[edi+24] |
fstp dword[esi+12] ;(x2-x3) |
fld dword[edi+28] |
fsub dword[edi+16] |
fld dword[edi+16] |
fsub dword[edi+28] |
fstp dword[esi+16] ;(y2-y3) |
fld dword[edi+32] |
fsub dword[edi+20] |
fld dword[edi+20] |
fsub dword[edi+32] |
fstp dword[esi+20] ;(z2-z3) |
;v3 <-> v1 |
fld dword[edi] |
fsub dword[edi+24] |
fld dword[edi+24] |
fsub dword[edi] |
fstp dword[esi+24] ;(x3-x1) |
fld dword[edi+4] |
fsub dword[edi+28] |
fld dword[edi+28] |
fsub dword[edi+4] |
fstp dword[esi+28] ;(y3-y1) |
fld dword[edi+8] |
fsub dword[edi+32] |
fld dword[edi+32] |
fsub dword[edi+8] |
fstp dword[esi+32] ;(z3-z1) |
|
;a1,a2,a3 |
;A = (y2-y1) * (z3-z1) - (z2-z1) * (y3-y1) |
fld dword[esi+4] |
fmul dword[esi+8] |
fstp dword[edi] ;a1=(y1-y2)*(z1-z2) |
fld dword[esi+16] |
fmul dword[esi+20] |
fstp dword[edi+4] ;a2=(y2-y3)*(z2-z3) |
fld dword[esi+28] |
fmul dword[esi+32] |
fstp dword[edi+8] ;a3=(y3-y1)*(z3-z1) |
;b1,b2,b3 |
fld dword[esi+8] |
fmul dword[esi+28] |
fsubp |
fstp dword[eax] ;set normal.a |
|
;B = (z2-z1) * (x3-x1) - (x2-x1) * (z3-z1) |
fld dword[esi+8] |
fmul dword[esi+24] |
fld dword[esi] |
fmul dword[esi+8] |
fstp dword[edi+12] ;b1=(x1-x2)*(z1-z2) |
fld dword[esi+12] |
fmul dword[esi+20] |
fstp dword[edi+16] ;b2=(x2-x3)*(z2-z3) |
fld dword[esi+24] |
fmul dword[esi+32] |
fstp dword[edi+20] ;b3=(x3-x1)*(z3-z1) |
;c1,á2,á3 |
fsubp |
fstp dword[eax+4] ;set normal.b |
|
;C = (x2-x1) * (y3-y1) - (y2-y1) * (x3-x1) |
fld dword[esi] |
fmul dword[esi+4] |
fstp dword[edi+24] ;c1=(x1-x2)*(y1-y2) |
fld dword[esi+12] |
fmul dword[esi+16] |
fstp dword[edi+28] ;c2=(x2-x3)*(y2-y3) |
fld dword[esi+24] |
fmul dword[esi+28] |
fstp dword[edi+32] ;c3=(x3-x1)*(y3-y1) |
|
fld dword[edi] |
fadd dword[edi+4] |
fadd dword[edi+8] |
fstp dword[eax] ;set normal.a |
fld dword[edi+12] |
fadd dword[edi+16] |
fadd dword[edi+20] |
fstp dword[eax+4] ;set normal.b |
fld dword[edi+24] |
fadd dword[edi+28] |
fadd dword[edi+32] |
fld dword[esi+4] |
fmul dword[esi+24] |
fsubp |
fstp dword[eax+8] ;set normal.c |
|
add edx,8 ;à §¬¥à âà¥ã£®«ì¨ª = (3 ¢¥àè¨ë (¯® 2¡) + ᢮©á⢠(2¡)) |
832,7 → 813,6 |
; |
bt dword[draw_mode],bit_light |
jnc .norm |
;[obj_normals_tri_count] |
stdcall [glNormal3fv], edx |
add edx,12 |
.norm: |
1038,6 → 1018,15 |
add esi,2 |
;word[esi] - ®¬¥à âà¥ã£®«ì¨ª |
movzx ebx,word[esi] |
;®à¬ «¨ ¤«ï ®á¢¥é¥¨ï |
bt dword[draw_mode],bit_light |
jnc .norm |
mov eax,ebx |
imul eax,12 |
add eax,[edi+offs_obj_normals_tri_data] |
stdcall [glNormal3fv], eax |
.norm: |
|
shl ebx,3 |
add ebx,[edi+offs_obj_tri_data] |
|