// todo: move this code to C# side.
// Renders world axis at the bottom-left corner.
static void RenderWorldAxis()
{
RenderContext* rc = RenderContext::Inst();
RenderSurface* surface = s_engineData->pRenderSurface;
LineRenderer *lr = LineRenderer::Inst();
Camera& cam = rc->Cam();
float margin = 36; // margin in pixels
float xl = 28; // axis length in pixels.
float vw = (float)surface->GetWidth();
float vh = (float)surface->GetHeight();
Matrix view = cam.View();
view.M41 = -vw/2 + margin;
view.M42 = -vh/2 + margin;
view.M43 = -xl;
float3 look = cam.CamLook();
bool perspective = !cam.IsOrtho();
// for orthographic hide one of the axis depending on view-type
const float epsilon = 0.001f; // use relatively large number for this test.
bool renderX = perspective || abs(look.x) < epsilon;
bool renderY = perspective || abs(look.y) < epsilon;
bool renderZ = perspective || abs(look.z) < epsilon;
Matrix proj = Matrix::CreateOrthographic(vw,vh,1,10000);
cam.SetViewProj(view,proj);
float3 centerV(0,0,0);
// draw x,y,z
if(renderX)
lr->DrawLine(centerV,float3(xl,0,0),float4(1,0,0,1));
if(renderY)
lr->DrawLine(centerV,float3(0,xl,0),float4(0,1,0,1));
if(renderZ)
lr->DrawLine(centerV,float3(0,0,xl),float4(0,0,1,1));
lr->RenderAll(rc);
Font* font = s_engineData->AxisFont;
if(font)
{
float fh = font->GetFontSize();
float fhh = fh /2.0f;
FontRenderer* fr = LvEdFonts::FontRenderer::Inst();
Matrix vp = view * proj;
// draw x,y,z
if(renderX)
{
float3 xpos = surface->Project(float3(xl,fhh,0),vp);
fr->DrawText(font,L"X",(int)xpos.x,(int)xpos.y,float4(1,0,0,1));
}
if(renderY)
{
float3 ypos = surface->Project(float3(0,xl+fhh,0),vp);
fr->DrawText(font,L"Y",(int)ypos.x,(int)ypos.y,float4(0,1,0,1));
}
if(renderZ)
{
float3 zpos = surface->Project(float3(0,fhh,xl),vp);
int ycoord =(int) ((zpos.y + fh) > vh ? vh - fh : zpos.y);
fr->DrawText(font,L"Z",(int)zpos.x,ycoord,float4(0,0,1,1));
}
fr->FlushPrintRequests( rc );
}
}
LVEDRENDERINGENGINE_API void __stdcall LvEd_Begin(ObjectGUID renderSurface, float viewxform[], float projxform[])
{
ErrorHandler::ClearError();
s_engineData->pRenderSurface = reinterpret_cast<RenderSurface*>(renderSurface);
RenderContext* rc = RenderContext::Inst();
ExpFog fog;
fog.enabled = 0;
if(s_engineData->GameLevel)
{
fog = s_engineData->GameLevel->GetFog();
}
rc->SetFog(fog);
// set render target and depth buffer.
rc->SetContext(gD3D11->GetImmediateContext());
ID3D11DeviceContext* d3dcontext = rc->Context();
ID3D11RenderTargetView* rt[1] = {s_engineData->pRenderSurface->GetRenderTargetView()};
// set render target and depth buffer.
d3dcontext->OMSetRenderTargets(1,rt,s_engineData->pRenderSurface->GetDepthStencilView());
// Setup the viewport
D3D11_VIEWPORT vp = s_engineData->pRenderSurface->GetViewPort();
d3dcontext->RSSetViewports( 1, &vp );
float4 vf(vp.Width,vp.Height,vp.TopLeftX,vp.TopLeftY);
rc->SetViewPort(vf);
Matrix view(viewxform);
rc->Cam().SetViewProj(view, Matrix(projxform));
d3dcontext->RSSetState(NULL);
d3dcontext->OMSetDepthStencilState(NULL,0);
d3dcontext->OMSetBlendState( NULL, NULL, 0xFFFFFFFF );
// setup default lighting.
DirLight& light = *LightingState::Inst()->DefaultDirLight();
light.ambient = float3(0.05f,0.06f,0.07f);
light.diffuse = float3(250.0f/255.0f, 245.0f/255.0f, 240.0f/255.0f);
light.specular = light.diffuse; // float3(0.4f,0.4f,0.4f);
light.dir = float3(0.258819073f, -0.965925932f, 0.0f);
d3dcontext->ClearDepthStencilView( s_engineData->pRenderSurface->GetDepthStencilView(), D3D11_CLEAR_DEPTH, 1.0f, 0 );
if(s_engineData->GameLevel->m_activeskyeDome && s_engineData->GameLevel->m_activeskyeDome->GetVisible())
{
s_engineData->GameLevel->m_activeskyeDome->Render(RenderContext::Inst());
}
else
{
float4 color = s_engineData->pRenderSurface->GetBkgColor();
d3dcontext->ClearRenderTargetView( s_engineData->pRenderSurface->GetRenderTargetView(), &color.x );
}
//Level editor may perform some rendering before LvEd_RenderGame get called.
s_engineData->basicRenderer->Begin(RenderContext::Inst()->Context(),
s_engineData->pRenderSurface,
RenderContext::Inst()->Cam().View(),
RenderContext::Inst()->Cam().Proj());
}
