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fix calculate normals

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git-svn-id: svn://kolibrios.org@6510 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
IgorA 2016-09-03 09:55:17 +00:00
parent e643356bbc
commit a30d0dccf8
1 changed files with 43 additions and 54 deletions
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97
programs/develop/info3ds/info_o3d.inc
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@ -344,7 +344,8 @@ align 4
ret
endp
;ãáâ ­®¢ª  ­®à¬ «¥© ¤«ï £à ­¥©
;description:
; ¢ëç¨á«¥­¨¥ ­®à¬ «¥© ¤«ï £à ­¥© ¯® 3-¬ ¢¥à設 ¬
align 4
proc obj_set_normals, o_data:dword
locals
@ -396,76 +397,56 @@ align 4
;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]
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
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]
fld dword[esi+8]
fmul dword[esi+28]
fstp dword[edi+32] ;c3=(x3-x1)*(y3-y1)
fld dword[edi]
fadd dword[edi+4]
fadd dword[edi+8]
fsubp
fstp dword[eax] ;set normal.a
fld dword[edi+12]
fadd dword[edi+16]
fadd dword[edi+20]
;B = (z2-z1) * (x3-x1) - (x2-x1) * (z3-z1)
fld dword[esi+8]
fmul dword[esi+24]
fld dword[esi]
fmul dword[esi+32]
fsubp
fstp dword[eax+4] ;set normal.b
fld dword[edi+24]
fadd dword[edi+28]
fadd dword[edi+32]
;C = (x2-x1) * (y3-y1) - (y2-y1) * (x3-x1)
fld dword[esi]
fmul dword[esi+28]
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 ¢¥à設ë (¯® 2¡) + ᢮©á⢠ (2¡))
@ -832,7 +813,6 @@ end if
;
bt dword[draw_mode],bit_light
jnc .norm
;[obj_normals_tri_count]
stdcall [glNormal3fv], edx
add edx,12
.norm:
@ -1038,6 +1018,15 @@ align 4
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]