void MarchingCubesInterface::CreateMesh()
{
//Begin the construction of the mesh
GetMeshBuilder()->BeginMesh();
//Sample the scalar field value on each vertice of grid
SampleSpace();
//For each cube defined by the grid, emit geometry if the cube intersect the surface.
March();
//Add a dummy triangle to avoid empty mesh
Vertex v;
m_meshBuilder->AddVertex(v);
m_meshBuilder->AddVertex(v);
m_meshBuilder->AddVertex(v);
m_meshBuilder->AddTriangle(0,1,2);
//Finalize the mesh
GetMeshBuilder()->EndMesh();
}
void RNFR067_IsoSplash::Prepare(Wz4RenderContext *ctx)
{
for(sInt i=0;i<4;i++)
{
if(Mtrl[i])
Mtrl[i]->BeforeFrame(Para.LightEnv);
}
SphereEnable = (Para.SphereAmp!=0.0f);
SphereAmp.x = 1.0f / Para.SphereDirections.x;
SphereAmp.y = 1.0f / Para.SphereDirections.y;
SphereAmp.z = 1.0f / Para.SphereDirections.z;
SphereAmp = SphereAmp * SphereAmp;
CubeEnable = (Para.CubeAmp!=0.0f);
CubeAmp.x = 1.0f / Para.CubeDirections.x;
CubeAmp.y = 1.0f / Para.CubeDirections.y;
CubeAmp.z = 1.0f / Para.CubeDirections.z;
NoiseEnable = (Para.NoiseAmp1!=0.0f) || (Para.NoiseAmp2!=0.0f);
NoiseFreq1 = Para.NoiseFreq1*0x10000;
NoisePhase1 = Para.NoisePhase1*0x10000;
NoiseAmp1 = Para.NoiseAmp1;
NoiseFreq2 = Para.NoiseFreq2*0x10000;
NoisePhase2 = Para.NoisePhase2*0x10000;
NoiseAmp2 = Para.NoiseAmp2;
RotEnable = 0;
RubberEnable = 0;
if(Para.Rot.x!=0 || Para.Rot.y!=0 || Para.Rot.z!=0)
RotEnable = 1;
if(Para.Rubber.x!=0 || Para.Rubber.y!=0 || Para.Rubber.z!=0)
RotEnable = RubberEnable = 1;
PolarEnable = (Para.PolarAmp!=0.0f);
for(sInt i=0;i<Size;i++)
{
sF32 py = sF32(i-1)/sF32((1<<Para.OctreeDivisions)*8);
RubberMat[i].EulerXYZ((Para.Rot.x+Para.Rubber.x*py)*sPI2F,
(Para.Rot.y+Para.Rubber.y*py)*sPI2F,
(Para.Rot.z+Para.Rubber.z*py)*sPI2F);
}
sF32 f = 1.0f/((1<<Para.OctreeDivisions)*8);
for(sInt y=0;y<Size;y++)
{
for(sInt x=0;x<Size;x++)
{
sF32 px = (x-1)*f*2-1;
sF32 py = (y-1)*f*2-1;
NoiseXY[Size*y+x] = NoiseAmp1*sPerlin2D(sInt(px*NoiseFreq1.x+NoisePhase1.x),
sInt(py*NoiseFreq1.y+NoisePhase1.y),255,Para.NoiseSeed1)
+ NoiseAmp2*sPerlin2D(sInt(px*NoiseFreq2.x+NoisePhase2.x),
sInt(py*NoiseFreq2.y+NoisePhase2.y),255,Para.NoiseSeed2);
NoiseYZ[Size*y+x] = NoiseAmp1*sPerlin2D(sInt(px*NoiseFreq1.y+NoisePhase1.y),
sInt(py*NoiseFreq1.z+NoisePhase1.z),255,Para.NoiseSeed1)
+ NoiseAmp2*sPerlin2D(sInt(px*NoiseFreq2.y+NoisePhase2.y),
sInt(py*NoiseFreq2.z+NoisePhase2.z),255,Para.NoiseSeed2);
NoiseZX[Size*y+x] = NoiseAmp1*sPerlin2D(sInt(px*NoiseFreq1.z+NoisePhase1.z),
sInt(py*NoiseFreq1.x+NoisePhase1.x),255,Para.NoiseSeed1)
+ NoiseAmp2*sPerlin2D(sInt(px*NoiseFreq2.z+NoisePhase2.z),
sInt(py*NoiseFreq2.x+NoisePhase2.x),255,Para.NoiseSeed2);
PolarPhi[Size*y+x] = sFSin(sATan2(px,py)*Para.PolarXZ*0.5f);
}
}
// do it
MakeNodes();
March();
sAABBoxC box;
sF32 s = Para.GridSize/2.0f;
box.Radius.Init(s,s,s);
box.Center.Init(0,0,0);
for(sInt i=0;i<4;i++)
if(Mtrl[i])
Mtrl[i]->BeforeFrame(Para.LightEnv,1,&box,Matrices.GetCount(),Matrices.GetData());
}
