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comparison Outdoor.cpp @ 2368:91b6c0a338ad

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ODMFace::IsBackfaceCulled to ODMFace::IsBackfaceNotCulled, cleaned up a bit
author Grumpy7
date Mon, 12 May 2014 00:13:39 +0200
parents 7942b5727708
children bddcaf5d5db2
comparison
equal deleted inserted replaced
2367:7942b5727708 2368:91b6c0a338ad
574 pOutdoor->loc_time.day_fogrange_2 = ::day_fogrange_2; 574 pOutdoor->loc_time.day_fogrange_2 = ::day_fogrange_2;
575 pOutdoor->loc_time.day_attrib = ::day_attrib; 575 pOutdoor->loc_time.day_attrib = ::day_attrib;
576 } 576 }
577 577
578 //----- (00482170) -------------------------------------------------------- 578 //----- (00482170) --------------------------------------------------------
579 bool ODMFace::IsBackfaceCulled(RenderVertexSoft *a2, struct Polygon *polygon) 579 bool ODMFace::IsBackfaceNotCulled(RenderVertexSoft *a2, struct Polygon *polygon)
580 { 580 {
581 unsigned int v5; // edx@1 581 unsigned int numOfVertices; // edx@1
582 RenderVertexSoft *v6; // ecx@2 582 RenderVertexSoft *currVertex; // ecx@2
583 double v7; // st7@5 583 double v7; // st7@5
584 double v8; // st6@5 584 double v8; // st6@5
585 double v9; // st5@5 585 double v9; // st5@5
586 double v10; // st6@9
587 double v11; // st5@9
588 double v12; // st4@9
589 double v14; // ST2C_8@17
590 double v15; // ST20_8@17
591 double v16; // ST0C_8@17
592 double v17; // ST0C_8@17
593 float v18; // [sp+8h] [bp-38h]@5 586 float v18; // [sp+8h] [bp-38h]@5
594 float v19; // [sp+10h] [bp-30h]@5 587 float v19; // [sp+10h] [bp-30h]@5
595 float v20; // [sp+14h] [bp-2Ch]@5 588 float v20; // [sp+14h] [bp-2Ch]@5
596 float v21; // [sp+18h] [bp-28h]@5 589 float v21; // [sp+18h] [bp-28h]@5
597 float v22; // [sp+1Ch] [bp-24h]@5 590 float v22; // [sp+1Ch] [bp-24h]@5
605 float a3b; // [sp+48h] [bp+8h]@17 598 float a3b; // [sp+48h] [bp+8h]@17
606 float a3c; // [sp+48h] [bp+8h]@17 599 float a3c; // [sp+48h] [bp+8h]@17
607 float a3d; // [sp+48h] [bp+8h]@17 600 float a3d; // [sp+48h] [bp+8h]@17
608 float a3e; // [sp+48h] [bp+8h]@17 601 float a3e; // [sp+48h] [bp+8h]@17
609 602
610 v5 = polygon->uNumVertices; 603 numOfVertices = polygon->uNumVertices;
611 if ( (signed int)v5 < 3 ) 604 if ( numOfVertices < 3 )
612 return false; 605 return false;
613 v6 = &a2[v5 - 1]; 606 currVertex = &a2[numOfVertices - 1];
614 if ( a2->vWorldPosition.z == a2[1].vWorldPosition.z && a2[1].vWorldPosition.z == v6->vWorldPosition.z ) 607 if ( a2->vWorldPosition.z == a2[1].vWorldPosition.z && a2[1].vWorldPosition.z == currVertex->vWorldPosition.z )
615 *(int *)&polygon->flags |= 0x10u; 608 polygon->flags |= 0x10u;
616 v19 = a2[1].vWorldViewPosition.x - a2->vWorldViewPosition.x; 609
617 v18 = a2[1].vWorldViewPosition.y - a2->vWorldViewPosition.y;
618 v20 = a2[1].vWorldViewPosition.z - a2->vWorldViewPosition.z;
619 v21 = v6->vWorldViewPosition.x - a2->vWorldViewPosition.x;
620 v22 = v6->vWorldViewPosition.y - a2->vWorldViewPosition.y;
621 v23 = v6->vWorldViewPosition.z - a2->vWorldViewPosition.z;
622 v28 = a2[1].vWorldPosition.x - a2->vWorldPosition.x; 610 v28 = a2[1].vWorldPosition.x - a2->vWorldPosition.x;
623 v27 = a2[1].vWorldPosition.y - a2->vWorldPosition.y; 611 v27 = a2[1].vWorldPosition.y - a2->vWorldPosition.y;
624 a3a = a2[1].vWorldPosition.z - a2->vWorldPosition.z; 612 a3a = a2[1].vWorldPosition.z - a2->vWorldPosition.z;
625 v7 = v6->vWorldPosition.x - a2->vWorldPosition.x; 613
626 v8 = v6->vWorldPosition.y - a2->vWorldPosition.y; 614
627 v9 = v6->vWorldPosition.z - a2->vWorldPosition.z; 615 for (int i = 0; i < numOfVertices; i++)
628 v26 = v27 * v9 - v8 * a3a; 616 {
629 v24 = v7 * a3a - v9 * v28; 617 v7 = currVertex->vWorldPosition.x - a2->vWorldPosition.x;
630 v25 = v8 * v28 - v7 * v27; 618 v8 = currVertex->vWorldPosition.y - a2->vWorldPosition.y;
631 if ( v26 == 0.0 && v24 == 0.0 && v25 == 0.0 ) 619 v9 = currVertex->vWorldPosition.z - a2->vWorldPosition.z;
632 { 620 v26 = v27 * v9 - v8 * a3a;
633 while ( 1 ) 621 v24 = v7 * a3a - v9 * v28;
634 { 622 v25 = v8 * v28 - v7 * v27;
635 --v5; 623 if ( v24 != 0.0 || v25 != 0.0 || v26 != 0.0 )
636 if ( (signed int)v5 < 2 ) 624 break;
637 break; 625 currVertex--;
638 v10 = v6->vWorldPosition.x - a2->vWorldPosition.x; 626 }
639 v11 = v6->vWorldPosition.y - a2->vWorldPosition.y; 627
640 v12 = v6->vWorldPosition.z - a2->vWorldPosition.z;
641 v26 = v27 * v12 - v11 * a3a;
642 v24 = v10 * a3a - v12 * v28;
643 v25 = v11 * v28 - v10 * v27;
644 if ( v26 != 0.0 )
645 break;
646 if ( v24 != 0.0 || v25 != 0.0 )
647 break;
648 --v6;
649 }
650 v21 = v6->vWorldViewPosition.x - a2->vWorldViewPosition.x;
651 v22 = v6->vWorldViewPosition.y - a2->vWorldViewPosition.y;
652 v23 = v6->vWorldViewPosition.z - a2->vWorldViewPosition.z;
653 }
654 if ( ((double)pGame->pIndoorCameraD3D->vPartyPos.x - a2->vWorldPosition.x) * v26 628 if ( ((double)pGame->pIndoorCameraD3D->vPartyPos.x - a2->vWorldPosition.x) * v26
655 + ((double)pGame->pIndoorCameraD3D->vPartyPos.z - a2->vWorldPosition.z) * v25 629 + ((double)pGame->pIndoorCameraD3D->vPartyPos.z - a2->vWorldPosition.z) * v25
656 + ((double)pGame->pIndoorCameraD3D->vPartyPos.y - a2->vWorldPosition.y) * v24 > 0.0 ) 630 + ((double)pGame->pIndoorCameraD3D->vPartyPos.y - a2->vWorldPosition.y) * v24 > 0.0 )
657 { 631 {
632
633 v19 = a2[1].vWorldViewPosition.x - a2->vWorldViewPosition.x;
634 v18 = a2[1].vWorldViewPosition.y - a2->vWorldViewPosition.y;
635 v20 = a2[1].vWorldViewPosition.z - a2->vWorldViewPosition.z;
636 v21 = currVertex->vWorldViewPosition.x - a2->vWorldViewPosition.x;
637 v22 = currVertex->vWorldViewPosition.y - a2->vWorldViewPosition.y;
638 v23 = currVertex->vWorldViewPosition.z - a2->vWorldViewPosition.z;
639
658 a3b = v23 * v18 - v22 * v20; 640 a3b = v23 * v18 - v22 * v20;
659 v14 = a3b + 6.7553994e15; 641 polygon->v_18.x = bankersRounding(a3b);
660 polygon->v_18.x = LODWORD(v14);
661 a3c = v21 * v20 - v23 * v19; 642 a3c = v21 * v20 - v23 * v19;
662 v15 = a3c + 6.7553994e15; 643 polygon->v_18.y = bankersRounding(a3c);
663 polygon->v_18.y = LODWORD(v15);
664 a3d = v22 * v19 - v21 * v18; 644 a3d = v22 * v19 - v21 * v18;
665 v16 = a3d + 6.7553994e15; 645 polygon->v_18.z = bankersRounding(a3d);
666 polygon->v_18.z = LODWORD(v16);
667 polygon->_normalize_v_18(); 646 polygon->_normalize_v_18();
668 a3e = -((double)polygon->v_18.x * a2->vWorldViewPosition.x) 647 a3e = -((double)polygon->v_18.x * a2->vWorldViewPosition.x)
669 - (double)polygon->v_18.y * a2->vWorldViewPosition.y 648 - (double)polygon->v_18.y * a2->vWorldViewPosition.y
670 - (double)polygon->v_18.z * a2->vWorldViewPosition.z; 649 - (double)polygon->v_18.z * a2->vWorldViewPosition.z;
671 v17 = a3e + 6.7553994e15; 650 polygon->field_24 = bankersRounding(a3e);
672 polygon->field_24 = LODWORD(v17);
673 return true; 651 return true;
674 } 652 }
675 else 653 else
676 return false; 654 return false;
677 } 655 }