void Billboard::Render(const matrix4x4f &trans, const RenderData *rd)
{
PROFILE_SCOPED()
Graphics::Renderer *r = GetRenderer();
const matrix3x3f rot = trans.GetOrient().Transpose();
//some hand-tweaked scaling, to make the lights seem larger from distance
const float size = m_size * Graphics::GetFovFactor() * Clamp(trans.GetTranslate().Length() / 500.f, 0.25f, 15.f);
const vector3f rotv1 = rot * vector3f(size*0.5f, -size*0.5f, 0.0f);
const vector3f rotv2 = rot * vector3f(size*0.5f, size*0.5f, 0.0f);
if( !m_vbuffer.Valid() )
{
//create buffer and upload data
Graphics::VertexBufferDesc vbd;
vbd.attrib[0].semantic = Graphics::ATTRIB_POSITION;
vbd.attrib[0].format = Graphics::ATTRIB_FORMAT_FLOAT3;
vbd.attrib[1].semantic = Graphics::ATTRIB_UV0;
vbd.attrib[1].format = Graphics::ATTRIB_FORMAT_FLOAT2;
vbd.numVertices = 6;
vbd.usage = Graphics::BUFFER_USAGE_DYNAMIC; // we could be updating this per-frame
m_vbuffer.Reset( r->CreateVertexBuffer(vbd) );
}
#pragma pack(push, 4)
struct PosUVVert {
vector3f pos;
vector2f uv;
};
#pragma pack(pop)
PosUVVert* vtxPtr = m_vbuffer->Map<PosUVVert>(Graphics::BUFFER_MAP_WRITE);
vtxPtr[0].pos = (m_offset - rotv1); vtxPtr[0].uv = vector2f(0.f, 0.f); //top left
vtxPtr[1].pos = (m_offset - rotv2); vtxPtr[1].uv = vector2f(0.f, 1.f); //bottom left
vtxPtr[2].pos = (m_offset + rotv2); vtxPtr[2].uv = vector2f(1.f, 0.f); //top right
vtxPtr[3].pos = (m_offset + rotv2); vtxPtr[3].uv = vector2f(1.f, 0.f); //top right
vtxPtr[4].pos = (m_offset - rotv2); vtxPtr[4].uv = vector2f(0.f, 1.f); //bottom left
vtxPtr[5].pos = (m_offset + rotv1); vtxPtr[5].uv = vector2f(1.f, 1.f); //bottom right
m_vbuffer->Unmap();
r->SetTransform(trans);
r->DrawBuffer(m_vbuffer.Get(), m_renderState, m_material.Get());
r->GetStats().AddToStatCount(Graphics::Stats::STAT_BILLBOARD, 1);
}
void StaticGeometry::DrawBoundingBox(const Aabb &bb)
{
const vector3f min(bb.min.x, bb.min.y, bb.min.z);
const vector3f max(bb.max.x, bb.max.y, bb.max.z);
const vector3f fbl(min.x, min.y, min.z); //front bottom left
const vector3f fbr(max.x, min.y, min.z); //front bottom right
const vector3f ftl(min.x, max.y, min.z); //front top left
const vector3f ftr(max.x, max.y, min.z); //front top right
const vector3f rtl(min.x, max.y, max.z); //rear top left
const vector3f rtr(max.x, max.y, max.z); //rear top right
const vector3f rbl(min.x, min.y, max.z); //rear bottom left
const vector3f rbr(max.x, min.y, max.z); //rear bottom right
const Color c(Color::WHITE);
std::unique_ptr<Graphics::VertexArray> vts(new Graphics::VertexArray(Graphics::ATTRIB_POSITION | Graphics::ATTRIB_DIFFUSE));
//Front face
vts->Add(ftr, c); //3
vts->Add(fbr, c); //1
vts->Add(fbl, c); //0
vts->Add(fbl, c); //0
vts->Add(ftl, c); //2
vts->Add(ftr, c); //3
//Rear face
vts->Add(rbr, c); //7
vts->Add(rtr, c); //5
vts->Add(rbl, c); //6
vts->Add(rbl, c); //6
vts->Add(rtr, c); //5
vts->Add(rtl, c); //4
//Top face
vts->Add(rtl, c); //4
vts->Add(rtr, c); //5
vts->Add(ftr, c); //3
vts->Add(ftr, c); //3
vts->Add(ftl, c); //2
vts->Add(rtl, c); //4
//bottom face
vts->Add(fbr, c); //1
vts->Add(rbr, c); //7
vts->Add(rbl, c); //6
vts->Add(rbl, c); //6
vts->Add(fbl, c); //0
vts->Add(fbr, c); //1
//left face
vts->Add(fbl, c); //0
vts->Add(rbl, c); //6
vts->Add(rtl, c); //4
vts->Add(rtl, c); //4
vts->Add(ftl, c); //2
vts->Add(fbl, c); //0
//right face
vts->Add(rtr, c); //5
vts->Add(rbr, c); //7
vts->Add(fbr, c); //1
vts->Add(fbr, c); //1
vts->Add(ftr, c); //3
vts->Add(rtr, c); //5
Graphics::Renderer *r = GetRenderer();
Graphics::RenderStateDesc rsd;
rsd.cullMode = Graphics::CULL_NONE;
RefCountedPtr<Graphics::VertexBuffer> vb;
//create buffer and upload data
Graphics::VertexBufferDesc vbd;
vbd.attrib[0].semantic = Graphics::ATTRIB_POSITION;
vbd.attrib[0].format = Graphics::ATTRIB_FORMAT_FLOAT3;
vbd.attrib[1].semantic = Graphics::ATTRIB_DIFFUSE;
vbd.attrib[1].format = Graphics::ATTRIB_FORMAT_UBYTE4;
vbd.numVertices = vts->GetNumVerts();
vbd.usage = Graphics::BUFFER_USAGE_STATIC;
vb.Reset( m_renderer->CreateVertexBuffer(vbd) );
vb->Populate( *vts );
r->SetWireFrameMode(true);
r->DrawBuffer(vb.Get(), r->CreateRenderState(rsd), Graphics::vtxColorMaterial);
r->SetWireFrameMode(false);
}
