void VertexArray::SetTo2DQuad(float x1, float y1, float x2, float y2, float u1, float v1, float u2, float v2, float z)
{
float vcorners[12];
float uvs[8];
int bfaces[6];
SetVertexData2DQuad(x1,y1,x2,y2,u1,v1,u2,v2, vcorners, uvs, bfaces);
for (int i = 2; i < 12; i += 3)
vcorners[i] = z;
SetFaces(bfaces, 6);
SetVertices(vcorners, 12);
SetTexCoordSets(1);
SetTexCoords(0, uvs, 8);
}
void VertexArray::Add(
const unsigned char newcol[], int newcolcount,
const float newnorm[], int newnormcount,
const float newvert[], int newvertcount,
const int newfaces[], int newfacecount,
const float newtc[], int newtccount)
{
assert(texcoords.size() == 1);
SetFaces(newfaces, newfacecount, faces.size(), vertices.size() / 3);
SetVertices(newvert, newvertcount, vertices.size());
SetNormals(newnorm, newnormcount, normals.size());
SetColors(newcol, newcolcount, colors.size());
SetTexCoords(0, newtc, newtccount, texcoords[0].size());
}
void VertexArray::SetTo2DButton(float x, float y, float w, float h, float sidewidth, bool flip)
{
float vcorners[12*3];
float uvs[8*3];
int bfaces[6*3];
//y1 = 1.0 - y1;
//y2 = 1.0 - y2;
Vec2 corner1;
Vec2 corner2;
Vec2 dim;
dim.Set(w,h);
Vec2 center;
center.Set(x,y);
corner1 = center - dim*0.5;
corner2 = center + dim*0.5;
float x1 = corner1[0];
float y1 = corner1[1];
float x2 = corner2[0];
float y2 = corner2[1];
if (flip)
{
float y3 = y1;
y1 = y2;
y2 = y3;
}
//left
SetVertexData2DQuad(x1-sidewidth,y1,x1,y2, 0,0,0.5,1, vcorners, uvs, bfaces);
//center
SetVertexData2DQuad(x1,y1,x2,y2, 0.5,0,0.5,1, &(vcorners[12]), &(uvs[8]), &(bfaces[6]), 4);
//right
SetVertexData2DQuad(x2,y1,x2+sidewidth,y2, 0.5,0,1,1, &(vcorners[12*2]), &(uvs[8*2]), &(bfaces[6*2]), 8);
SetFaces(bfaces, 6*3);
SetVertices(vcorners, 12*3);
SetTexCoordSets(1);
SetTexCoords(0, uvs, 8*3);
}
void VertexArray::SetToBillboard(float x1, float y1, float x2, float y2)
{
int bfaces[6];
bfaces[0] = 0;
bfaces[1] = 1;
bfaces[2] = 2;
bfaces[3] = 0;
bfaces[4] = 2;
bfaces[5] = 3;
SetFaces(bfaces, 6);
float normals[12];
for (int i = 0; i < 12; i+=3)
{
normals[i] = 0;
normals[i+1] = 0;
normals[i+2] = 1;
}
SetNormals(normals, 12);
//build this:
//x1, y1, 0
//x2, y1, 0
//x2, y2, 0
//x1, y2, 0
float verts[12];
verts[2] = verts[5] = verts[8] = verts[11] = 0.0;
verts[0] = verts[9] = x1;
verts[3] = verts[6] = x2;
verts[1] = verts[4] = y1;
verts[7] = verts[10] = y2;
SetVertices(verts, 12);
float tc[8];
tc[0] = tc[1] = tc[3] = tc[6] = 0.0;
tc[2] = tc[4] = tc[5] = tc[7] = 1.0;
SetTexCoordSets(1);
SetTexCoords(0, tc, 8);
}
void FaceObject::DoCreateNode(SceneView* view,
optixu::Transform& transform,
optixu::GeometryGroup& group)
{
optixu::Context context = view->GetContext();
if (m_group.get())
{
group = m_group;
return;
}
auto model = view->GetScene()->GetModel();
group = context->createGeometryGroup();
m_curvedFaceInstance = context->createGeometryInstance();
m_planarFaceInstance = context->createGeometryInstance();
optixu::Geometry curvedGeometry = model->GetPlanarFaceGeometry();
optixu::Geometry planarGeometry = model->GetCurvedFaceGeometry();
m_planarFaceInstance->setGeometry(planarGeometry);
m_curvedFaceInstance->setGeometry(curvedGeometry);
m_group = group;
group->setChildCount(2);
group->setChild(0, m_planarFaceInstance);
group->setChild(1, m_curvedFaceInstance);
// Somehow sharing the acceleration structure didnt' work. Revisit if
// performance indicates.
m_group->setAcceleration(context->createAcceleration("Sbvh", "Bvh"));
m_facesEnabledBuffer =
view->GetScene()->GetModel()->GetFacesEnabledBuffer();
std::vector<int> temp(m_faceIds.begin(), m_faceIds.end());
SetFaces(temp, true);
}
void VertexArray::SetTo2DBox(float x, float y, float w, float h, float marginwidth, float marginheight, float clipx)
{
const unsigned int quads = 9;
float vcorners[12*quads];
float uvs[8*quads];
int bfaces[6*quads];
//y1 = 1.0 - y1;
//y2 = 1.0 - y2;
Vec2 corner1;
Vec2 corner2;
Vec2 dim;
dim.Set(w,h);
Vec2 center;
center.Set(x,y);
corner1 = center - dim*0.5;
corner2 = center + dim*0.5;
Vec2 margin;
margin.Set(marginwidth, marginheight);
float lxmax = std::max((corner1-margin)[0],std::min(clipx,corner1[0]));
float cxmax = std::max(corner1[0],std::min(clipx,corner2[0]));
float rxmax = std::max(corner2[0],std::min(clipx,(corner2+margin)[0]));
float lumax = (lxmax-(corner1-margin)[0])/(corner1[0]-(corner1-margin)[0])*0.5;
float rumax = (rxmax-corner2[0])/((corner2+margin)[0]-corner2[0])*0.5+0.5;
//upper left
SetVertexData2DQuad((corner1-margin)[0],(corner1-margin)[1],lxmax,corner1[1],
0,0,lumax,0.5, vcorners,uvs,bfaces);
//upper center
SetVertexData2DQuad(corner1[0],(corner1-margin)[1],cxmax,corner1[1],
0.5,0,0.5,0.5,
&(vcorners[12*1]),&(uvs[8*1]),&(bfaces[6*1]),4*1);
//upper right
SetVertexData2DQuad(corner2[0],(corner1-margin)[1],rxmax,corner1[1],
0.5,0,rumax,0.5,
&(vcorners[12*2]),&(uvs[8*2]),&(bfaces[6*2]),4*2);
//center left
SetVertexData2DQuad((corner1-margin)[0],corner1[1],lxmax,corner2[1],
0,0.5,lumax,0.5,
&(vcorners[12*3]),&(uvs[8*3]),&(bfaces[6*3]),4*3);
//center center
SetVertexData2DQuad(corner1[0],corner1[1],cxmax,corner2[1],
0.5,0.5,0.5,0.5,
&(vcorners[12*4]),&(uvs[8*4]),&(bfaces[6*4]),4*4);
//center right
SetVertexData2DQuad(corner2[0],corner1[1],rxmax,corner2[1],
0.5,0.5,rumax,0.5,
&(vcorners[12*5]),&(uvs[8*5]),&(bfaces[6*5]),4*5);
//lower left
SetVertexData2DQuad((corner1-margin)[0],corner2[1],lxmax,(corner2+margin)[1],
0,0.5,lumax,1,
&(vcorners[12*6]),&(uvs[8*6]),&(bfaces[6*6]),4*6);
//lower center
SetVertexData2DQuad(corner1[0],corner2[1],cxmax,(corner2+margin)[1],
0.5,0.5,0.5,1,
&(vcorners[12*7]),&(uvs[8*7]),&(bfaces[6*7]),4*7);
//lower right
SetVertexData2DQuad(corner2[0],corner2[1],rxmax,(corner2+margin)[1],
0.5,0.5,rumax,1,
&(vcorners[12*8]),&(uvs[8*8]),&(bfaces[6*8]),4*8);
SetFaces(bfaces, 6*quads);
SetVertices(vcorners, 12*quads);
SetTexCoordSets(1);
SetTexCoords(0, uvs, 8*quads);
}
