void VImageState::OnPaint(VGraphicsInfo &Graphics, const VItemRenderInfo &parentState)
{
VTextureObject *pTex = GetCurrentTexture();
if (!pTex)
return;
VASSERT(parentState.m_pWindow);
VRectanglef rect = parentState.m_pWindow->GetBoundingBox();
VSimpleRenderState_t state = VGUIManager::DefaultGUIRenderState(m_eTranspType);
VColorRef iColor = parentState.iFadeColor*m_iColor;
state.SetFlag(m_iAdditionalStateFlags); // apply filtering for instance
if (m_eStretchMode==BORDER)
{
hkvVec2 v1 = rect.m_vMin;
hkvVec2 v2 = rect.m_vMax;
float bx = (float)pTex->GetTextureWidth()*0.5f;
float by = (float)pTex->GetTextureHeight()*0.5f;
float hx = 1.f / bx;
float hy = 1.f / by;
bx -= 1.f;
by -= 1.f;
Overlay2DVertex_t v[(4+4+1)*6]; // 9 quads
int iVertexCount = 0;
// corners
IVRender2DInterface::CreateQuadVertices(v1.x,v1.y, v1.x+bx,v1.y+by, 0,0,0.5f-hx,0.5f-hy, iColor, &v[iVertexCount]); iVertexCount+=6;
IVRender2DInterface::CreateQuadVertices(v2.x-bx,v1.y, v2.x,v1.y+by, 0.5f+hx,0,1,0.5f-hy, iColor, &v[iVertexCount]); iVertexCount+=6;
IVRender2DInterface::CreateQuadVertices(v2.x-bx,v2.y-by, v2.x,v2.y, 0.5f+hx,0.5f+hy,1,1, iColor, &v[iVertexCount]); iVertexCount+=6;
IVRender2DInterface::CreateQuadVertices(v1.x,v2.y-by, v1.x+bx,v2.y, 0,0.5f+hy,0.5f-hx,1, iColor, &v[iVertexCount]); iVertexCount+=6;
// edges
IVRender2DInterface::CreateQuadVertices(v1.x+bx,v1.y, v2.x-bx,v1.y+by, 0.5f-hx,0,0.5f+hx,0.5f-hy, iColor, &v[iVertexCount]); iVertexCount+=6;
IVRender2DInterface::CreateQuadVertices(v1.x+bx,v2.y-by, v2.x-bx,v2.y, 0.5f-hx,0.5f+hy,0.5f+hx,1, iColor, &v[iVertexCount]); iVertexCount+=6;
IVRender2DInterface::CreateQuadVertices(v1.x,v1.y+by, v1.x+bx,v2.y-by, 0,0.5f-hy,0.5f-hx,0.5f+hy, iColor, &v[iVertexCount]); iVertexCount+=6;
IVRender2DInterface::CreateQuadVertices(v2.x-bx,v1.y+by, v2.x,v2.y-by, 0.5f+hx,0.5f-hy,1,0.5f+hy, iColor, &v[iVertexCount]); iVertexCount+=6;
// inner rect
IVRender2DInterface::CreateQuadVertices(v1.x+bx,v1.y+by, v2.x-bx,v2.y-by, 0.5f-hx,0.5f-hy,0.5f+hx,0.5f+hy, iColor, &v[iVertexCount]); iVertexCount+=6;
RENDER_VERTICES(iVertexCount);
}
else if (m_eStretchMode==STRETCHED)
{
Overlay2DVertex_t v[6];
IVRender2DInterface::CreateQuadVertices(rect.m_vMin.x,rect.m_vMin.y,rect.m_vMax.x,rect.m_vMax.y,texCoord.m_vMin.x,texCoord.m_vMin.y,texCoord.m_vMax.x,texCoord.m_vMax.y,iColor,v);
RENDER_VERTICES(6);
}
else // actual texture size
{
Overlay2DVertex_t v[6];
rect.m_vMax.x = rect.m_vMin.x + (float)pTex->GetTextureWidth();
rect.m_vMax.y = rect.m_vMin.y + (float)pTex->GetTextureHeight();
IVRender2DInterface::CreateQuadVertices(rect.m_vMin.x,rect.m_vMin.y,rect.m_vMax.x,rect.m_vMax.y,texCoord.m_vMin.x,texCoord.m_vMin.y,texCoord.m_vMax.x,texCoord.m_vMax.y,iColor,v);
RENDER_VERTICES(6);
}
}
void VCoronaManager::RenderCorona (VCoronaCandidate& coronaCandidate, VTextureObject*& pTexture)
{
#ifdef SUPPORTS_CORONAS
VCoronaComponent *pCorona = coronaCandidate.m_pCorona;
VisRenderContext_cl* pContext = VisRenderContext_cl::GetCurrentContext();
VisLightSource_cl* pLight = (VisLightSource_cl*)pCorona->GetOwner();
hkvVec3 vLightPos(hkvNoInitialization);
pLight->GetVirtualPosition(vLightPos, pContext);
hkvVec3 vEyePos(hkvNoInitialization);
pContext->GetCamera()->GetPosition(vEyePos);
hkvVec3 vDir = pContext->GetCamera()->GetDirection();
// Corona texture
VTextureObject *pTex = pCorona->GetCoronaTexture();
if (pTex == NULL)
return;
if (pTexture != pTex)
{
pTexture = pTex;
Vision::RenderLoopHelper.BindMeshTexture(pTexture,0);
}
// Get light color
VColorRef color = pLight->GetColor();
hkvVec3 vDist = vLightPos - vEyePos;
float fEyeDist = vDir.dot(vDist);
//determine if camera is in light cone if the light is directional
float fDirectionalDampening = 1.0f;
if ( pLight->GetType() == VIS_LIGHT_SPOTLIGHT && pCorona->GetOnlyVisibleInSpotLight() )
{
fDirectionalDampening = 0.0f;
float fConeAngle = pLight->GetProjectionAngle();
float fConeLength = pLight->GetRadius();
hkvVec3 fConeDirection = pLight->GetDirection();
fConeDirection.normalize();
hkvVec3 vLightEyeDist = vEyePos - vLightPos;
//#2 check if the camera is inside the angle of the cone
float cosinusAngle = (vLightEyeDist/vLightEyeDist.getLength()).dot(fConeDirection);
float fDegree = hkvMath::acosDeg(cosinusAngle);
float normRadius = fDegree / (fConeAngle/2.0f);
if (normRadius < 1.0f)
{
//hardcoded falloff. For better performance, we avoid sampling the projection texture here.
const float fEpsilon = 64.0f/256.0f;
const float fQuadFactor = 1.0f/fEpsilon - 1.0f;
fDirectionalDampening = 1.0f / (1.0f + fQuadFactor*normRadius*normRadius);
// scale the function so that the value is exactly 0.0 at the edge and 1.0 in the center
fDirectionalDampening = (fDirectionalDampening - fEpsilon) / (1.0f - fEpsilon);
}
}
// Fog params
float fFogDampening = 1.0f;
if (pLight->GetType() != VIS_LIGHT_DIRECTED && Vision::World.IsLinearDepthFogEnabled())
{
const VFogParameters &fog = Vision::World.GetFogParameters();
float fFogStart = fog.fDepthStart;
float fFogEnd = fog.fDepthEnd;
float fFogFactor = (fFogEnd > fFogStart) ? ((fEyeDist - fFogStart) / (fFogEnd - fFogStart)) : 0.f;
fFogDampening = 1.0f - hkvMath::clamp(fFogFactor, 0.0f, 1.0f);
}
// Get corona rotation
float fRotation = 0.0f;
hkvVec4 vRotation(1.0f, 0.0f, 0.0f, 1.0f);
if (pCorona->CoronaFlags & VIS_CORONASCALE_ROTATING)
{
fRotation = hkvMath::mod (fEyeDist * 0.5f, 360.f);
vRotation.x = hkvMath::cosDeg (fRotation);
vRotation.y = -hkvMath::sinDeg (fRotation);
vRotation.z = -vRotation.y;
vRotation.w = vRotation.x;
}
// Texture dimensions
int iSizeX, iSizeY, depth;
pTex->GetTextureDimensions(iSizeX, iSizeY, depth);
hkvVec4 vScale(0.0f, 0.0f, 0.0f, 0.0f);
int iMainWidth, iMainHeight, iWidth, iHeight;
pContext->GetSize(iWidth, iHeight);
VisRenderContext_cl::GetMainRenderContext()->GetSize(iMainWidth, iMainHeight);
// Preserve texture aspect ratio
int iTexHeight = pTex->GetTextureHeight();
int iTexWidth = pTex->GetTextureWidth();
// Perspective scaling
// This scaling ensures roughly the same size on 720p as the old implementation.
vScale.z = iTexWidth * pCorona->CoronaScaling * 0.25f;
vScale.w = iTexHeight * pCorona->CoronaScaling * 0.25f;
// Screen-space scaling
// This scaling ensures roughly the same size on 720p as the old implementation.
const float fScaleFactor = pCorona->CoronaScaling * iMainHeight / 11.0f;
vScale.x = ((float)iTexWidth / 128.0f) * fScaleFactor * (float(iWidth) / float(iMainWidth));
vScale.y = ((float)iTexHeight / 128.0f) * fScaleFactor * (float(iHeight) / float(iMainHeight));
vScale.x *= 2.0f / iWidth;
vScale.y *= 2.0f / iHeight;
// Scale by visibility
if (pCorona->CoronaFlags & VIS_CORONASCALE_VISIBLEAREA)
{
vScale.x *= coronaCandidate.m_fCurrentVisibility;
vScale.y *= coronaCandidate.m_fCurrentVisibility;
vScale.z *= coronaCandidate.m_fCurrentVisibility;
vScale.w *= coronaCandidate.m_fCurrentVisibility;
}
VCompiledShaderPass* pShader = m_spCoronaTechnique->GetShader(0);
VShaderConstantBuffer *pVertexConstBuffer = pShader->GetConstantBuffer(VSS_VertexShader);
// xyz = worldspace position, w = 1.0 if VIS_CORONASCALE_DISTANCE is true, otherwise zero.
pVertexConstBuffer->SetSingleParameterF("coronaPosition", vLightPos.x, vLightPos.y, vLightPos.z, (pCorona->CoronaFlags & VIS_CORONASCALE_DISTANCE) ? 1.0f : 0.0f);
// xyz = light color, w = corona visibility.
pVertexConstBuffer->SetSingleParameterF("coronaColor", color.r/255.0f, color.g/255.0f, color.b/255.0f, coronaCandidate.m_fCurrentVisibility * fFogDampening * fDirectionalDampening);
// xyzw = 2x2 rotation matrix. float2x2 is not supported in shader model 2, so a float4 is used and multiplication is done manually in the shader.
pVertexConstBuffer->SetSingleParameterF("coronaRotation", vRotation.x, vRotation.y, vRotation.z, vRotation.w);
// xy = screen-space scaling. zw = view-space scaling.
pVertexConstBuffer->SetSingleParameterF("coronaScale", vScale.x, vScale.y, vScale.z, vScale.w);
Vision::RenderLoopHelper.RenderMeshes(pShader, VisMeshBuffer_cl::MB_PRIMTYPE_TRILIST, 0, 2, 6);
#endif
}