diff options
| author | StapleButter <thetotalworm@gmail.com> | 2017-06-28 21:19:44 +0200 |
|---|---|---|
| committer | StapleButter <thetotalworm@gmail.com> | 2017-06-28 21:19:44 +0200 |
| commit | da10f9b3f6cad55dc5b10041be4e54f7d9b9373e (patch) | |
| tree | eeec4660fe38e50e23caff9d2290fd7ac8027bb9 /src/GPU3D_Soft.cpp | |
| parent | 209a639461a9223af7114593ebd9aef0c5486aed (diff) | |
fix rendering for crapoed 'butterfly' polygons
Diffstat (limited to 'src/GPU3D_Soft.cpp')
| -rw-r--r-- | src/GPU3D_Soft.cpp | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/src/GPU3D_Soft.cpp b/src/GPU3D_Soft.cpp index 482a28d..ab7f517 100644 --- a/src/GPU3D_Soft.cpp +++ b/src/GPU3D_Soft.cpp @@ -255,10 +255,10 @@ public: return x0; } - s32 Setup(s32 x0, s32 x1, s32 y0, s32 y1, s32 w0, s32 w1) + s32 Setup(s32 x0, s32 x1, s32 y0, s32 y1, s32 w0, s32 w1, s32 y) { this->x0 = x0; - this->y = y0; + this->y = y; if (x1 > x0) { @@ -310,6 +310,8 @@ public: else dx = 0; } + dx += (y - y0) * Increment; + s32 x = XVal(); if (XMajor) @@ -831,7 +833,7 @@ void SetupPolygonLeftEdge(RendererPolygon* rp, s32 y) rp->XL = rp->SlopeL.Setup(polygon->Vertices[rp->CurVL]->FinalPosition[0], polygon->Vertices[rp->NextVL]->FinalPosition[0], polygon->Vertices[rp->CurVL]->FinalPosition[1], polygon->Vertices[rp->NextVL]->FinalPosition[1], - polygon->FinalW[rp->CurVL], polygon->FinalW[rp->NextVL]); + polygon->FinalW[rp->CurVL], polygon->FinalW[rp->NextVL], y); } void SetupPolygonRightEdge(RendererPolygon* rp, s32 y) @@ -858,7 +860,7 @@ void SetupPolygonRightEdge(RendererPolygon* rp, s32 y) rp->XR = rp->SlopeR.Setup(polygon->Vertices[rp->CurVR]->FinalPosition[0], polygon->Vertices[rp->NextVR]->FinalPosition[0], polygon->Vertices[rp->CurVR]->FinalPosition[1], polygon->Vertices[rp->NextVR]->FinalPosition[1], - polygon->FinalW[rp->CurVR], polygon->FinalW[rp->NextVR]); + polygon->FinalW[rp->CurVR], polygon->FinalW[rp->NextVR], y); } void SetupPolygon(RendererPolygon* rp, Polygon* polygon) |