void ModelViewer::DrawBackground()
{
m_renderer->SetDepthWrite(false);
m_renderer->SetBlendMode(Graphics::BLEND_SOLID);
m_renderer->SetOrthographicProjection(0.f, 1.f, 0.f, 1.f, -1.f, 1.f);
m_renderer->SetTransform(matrix4x4f::Identity());
static Graphics::VertexArray va(Graphics::ATTRIB_POSITION | Graphics::ATTRIB_DIFFUSE);
va.Clear();
const Color4f top = Color::BLACK;
const Color4f bottom = Color4f(0.3f);
va.Add(vector3f(0.f, 0.f, 0.f), bottom);
va.Add(vector3f(1.f, 0.f, 0.f), bottom);
va.Add(vector3f(1.f, 1.f, 0.f), top);
va.Add(vector3f(0.f, 0.f, 0.f), bottom);
va.Add(vector3f(1.f, 1.f, 0.f), top);
va.Add(vector3f(0.f, 1.f, 0.f), top);
m_renderer->DrawTriangles(&va, Graphics::vtxColorMaterial);
}
Graphics::VertexArray *Thruster::CreateGlowGeometry()
{
Graphics::VertexArray *verts =
new Graphics::VertexArray(Graphics::ATTRIB_POSITION | Graphics::ATTRIB_UV0);
//create glow billboard for linear thrusters
const float w = 0.2;
vector3f one(-w, -w, 0.f); //top left
vector3f two(-w, w, 0.f); //top right
vector3f three(w, w, 0.f); //bottom right
vector3f four(w, -w, 0.f); //bottom left
//uv coords
const vector2f topLeft(0.f, 1.f);
const vector2f topRight(1.f, 1.f);
const vector2f botLeft(0.f, 0.f);
const vector2f botRight(1.f, 0.f);
for (int i = 0; i < 5; i++) {
verts->Add(one, topLeft);
verts->Add(two, topRight);
verts->Add(three, botRight);
verts->Add(three, botRight);
verts->Add(four, botLeft);
verts->Add(one, topLeft);
one.z += .1f;
two.z = three.z = four.z = one.z;
}
return verts;
}
void DistanceFieldFont::AddGlyph(Graphics::VertexArray &va, const vector2f &pos, const Glyph& g, vector2f &bounds)
{
vector3f norm(0.f, 0.f, 1.f);
const vector2f &uv = g.uv; //uv offset
const float uWidth = g.uvSize.x;
const float vHeight = g.uvSize.y;
const float w = g.size.x;
const float h = g.size.y;
va.Add(vector3f(pos.x, pos.y, 0.f), norm, vector2f(uv.x, uv.y+vHeight));
va.Add(vector3f(pos.x + w, pos.y, 0.f), norm, vector2f(uv.x+uWidth, uv.y+vHeight));
va.Add(vector3f(pos.x, pos.y + h, 0.f), norm, vector2f(uv.x, uv.y));
va.Add(vector3f(pos.x, pos.y + h, 0.f), norm, vector2f(uv.x, uv.y));
va.Add(vector3f(pos.x + w, pos.y, 0.f), norm, vector2f(uv.x+uWidth, uv.y+vHeight));
va.Add(vector3f(pos.x + w, pos.y + h, 0.f), norm, vector2f(uv.x+uWidth, uv.y));
bounds.x = std::max(bounds.x, pos.x + w);
bounds.y = std::max(bounds.y, pos.y + h);
}
Graphics::VertexArray *Thruster::CreateThrusterGeometry()
{
Graphics::VertexArray *verts =
new Graphics::VertexArray(Graphics::ATTRIB_POSITION | Graphics::ATTRIB_UV0);
//zero at thruster center
//+x down
//+y right
//+z backwards (or thrust direction)
const float w = 0.5f;
vector3f one(0.f, -w, 0.f); //top left
vector3f two(0.f, w, 0.f); //top right
vector3f three(0.f, w, 1.f); //bottom right
vector3f four(0.f, -w, 1.f); //bottom left
//uv coords
const vector2f topLeft(0.f, 1.f);
const vector2f topRight(1.f, 1.f);
const vector2f botLeft(0.f, 0.f);
const vector2f botRight(1.f, 0.f);
//add four intersecting planes to create a volumetric effect
for (int i=0; i < 4; i++) {
verts->Add(one, topLeft);
verts->Add(two, topRight);
verts->Add(three, botRight);
verts->Add(three, botRight);
verts->Add(four, botLeft);
verts->Add(one, topLeft);
one.ArbRotate(vector3f(0.f, 0.f, 1.f), DEG2RAD(45.f));
two.ArbRotate(vector3f(0.f, 0.f, 1.f), DEG2RAD(45.f));
three.ArbRotate(vector3f(0.f, 0.f, 1.f), DEG2RAD(45.f));
four.ArbRotate(vector3f(0.f, 0.f, 1.f), DEG2RAD(45.f));
}
return verts;
}
void StaticGeometry::DrawBoundingBox(Graphics::Renderer *r, const Aabb &bb)
{
vector3f min(bb.min.x, bb.min.y, bb.min.z);
vector3f max(bb.max.x, bb.max.y, bb.max.z);
vector3f fbl(min.x, min.y, min.z); //front bottom left
vector3f fbr(max.x, min.y, min.z); //front bottom right
vector3f ftl(min.x, max.y, min.z); //front top left
vector3f ftr(max.x, max.y, min.z); //front top right
vector3f rtl(min.x, max.y, max.z); //rear top left
vector3f rtr(max.x, max.y, max.z); //rear top right
vector3f rbl(min.x, min.y, max.z); //rear bottom left
vector3f rbr(max.x, min.y, max.z); //rear bottom right
Graphics::VertexArray *vts = new Graphics::VertexArray(Graphics::ATTRIB_POSITION | Graphics::ATTRIB_DIFFUSE);
Color c(Color::WHITE);
//vertices
vts->Add(fbl, c); //0
vts->Add(fbr, c); //1
vts->Add(ftl, c); //2
vts->Add(ftr, c); //3
vts->Add(rtl, c); //4
vts->Add(rtr, c); //5
vts->Add(rbl, c); //6
vts->Add(rbr, c); //7
RefCountedPtr<Graphics::Material> mat(Graphics::vtxColorMaterial);
Graphics::Surface surf(Graphics::TRIANGLES, vts, mat);
//indices
std::vector<unsigned short> &ind = surf.GetIndices();
//Front face
ind.push_back(3);
ind.push_back(1);
ind.push_back(0);
ind.push_back(0);
ind.push_back(2);
ind.push_back(3);
//Rear face
ind.push_back(7);
ind.push_back(5);
ind.push_back(6);
ind.push_back(6);
ind.push_back(5);
ind.push_back(4);
//Top face
ind.push_back(4);
ind.push_back(5);
ind.push_back(3);
ind.push_back(3);
ind.push_back(2);
ind.push_back(4);
//bottom face
ind.push_back(1);
ind.push_back(7);
ind.push_back(6);
ind.push_back(6);
ind.push_back(0);
ind.push_back(1);
//left face
ind.push_back(0);
ind.push_back(6);
ind.push_back(4);
ind.push_back(4);
ind.push_back(2);
ind.push_back(0);
//right face
ind.push_back(5);
ind.push_back(7);
ind.push_back(1);
ind.push_back(1);
ind.push_back(3);
ind.push_back(5);
r->SetWireFrameMode(true);
r->DrawSurface(&surf);
r->SetWireFrameMode(false);
}