void FaceInstance::addLight(const Matrix4& localToWorld, const RendererLight& light)
{
const Plane3& facePlane = getFace().plane3();
Plane3 tmp = Plane3(facePlane.normal(), -facePlane.dist())
.transformed(localToWorld);
if (!tmp.testPoint(light.worldOrigin()) || !tmp.testPoint(light.getLightOrigin()))
{
m_lights.addLight(light);
}
}
void StandardDeferred::renderLight(LightType lightType, const RendererLight& light, const RendererView& view,
const GBufferTextures& gBufferInput, const SPtr<Texture>& lightOcclusion)
{
const auto& viewProps = view.getProperties();
bool isMSAA = view.getProperties().numSamples > 1;
SPtr<GpuParamBlockBuffer> perViewBuffer = view.getPerViewBuffer();
light.getParameters(mPerLightBuffer);
if (lightType == LightType::Directional)
{
DeferredDirectionalLightMat* material = DeferredDirectionalLightMat::getVariation(isMSAA, true);
material->bind(gBufferInput, lightOcclusion, perViewBuffer, mPerLightBuffer);
gRendererUtility().drawScreenQuad();
// Draw pixels requiring per-sample evaluation
if(isMSAA)
{
DeferredDirectionalLightMat* msaaMaterial = DeferredDirectionalLightMat::getVariation(true, false);
msaaMaterial->bind(gBufferInput, lightOcclusion, perViewBuffer, mPerLightBuffer);
gRendererUtility().drawScreenQuad();
}
}
else // Radial or spot
{
// Check if viewer is inside the light volume
float distSqrd = (light.internal->getBounds().getCenter() - viewProps.viewOrigin).squaredLength();
// Extend the bounds slighty to cover the case when the viewer is outside, but the near plane is intersecting
// the light bounds. We need to be conservative since the material for rendering outside will not properly
// render the inside of the light volume.
float boundRadius = light.internal->getBounds().getRadius() + viewProps.nearPlane * 3.0f;
bool isInside = distSqrd < (boundRadius * boundRadius);
SPtr<Mesh> stencilMesh;
if(lightType == LightType::Radial)
stencilMesh = RendererUtility::instance().getSphereStencil();
else // Spot
stencilMesh = RendererUtility::instance().getSpotLightStencil();
DeferredPointLightMat* material = DeferredPointLightMat::getVariation(isInside, isMSAA, true);
material->bind(gBufferInput, lightOcclusion, perViewBuffer, mPerLightBuffer);
// Note: If MSAA is enabled this will be rendered multisampled (on polygon edges), see if this can be avoided
gRendererUtility().draw(stencilMesh);
// Draw pixels requiring per-sample evaluation
if(isMSAA)
{
DeferredPointLightMat* msaaMaterial = DeferredPointLightMat::getVariation(isInside, true, false);
msaaMaterial->bind(gBufferInput, lightOcclusion, perViewBuffer, mPerLightBuffer);
gRendererUtility().draw(stencilMesh);
}
}
}
// Local helper
inline void Surface_addLight(const MD5Surface& surface,
VectorLightList& lights,
const Matrix4& localToWorld,
const RendererLight& light)
{
if (light.testAABB(aabb_for_oriented_aabb(surface.localAABB(), localToWorld))) {
lights.addLight(light);
}
}
// Add a light to this model instance
void PicoModelNode::insertLight(const RendererLight& light)
{
// Calculate transform from the superclass
const Matrix4& l2w = localToWorld();
// If the light's AABB intersects the oriented AABB of this model instance,
// add the light to our light list
if (light.intersectsAABB(AABB::createFromOrientedAABB(_picoModel->localAABB(), l2w)))
{
_lights.addLight(light);
}
}
// Local helper
inline void Surface_addLight(const MD5Surface& surface,
render::lib::VectorLightList& lights,
const Matrix4& localToWorld,
const RendererLight& light)
{
if (light.intersectsAABB(
AABB::createFromOrientedAABB(surface.localAABB(), localToWorld)
)
)
{
lights.addLight(light);
}
}
bool MD5ModelNode::intersectsLight(const RendererLight& light) const
{
return light.intersectsAABB(worldAABB());
}
bool MD5ModelNode::testLight(const RendererLight& light) const {
return light.testAABB(worldAABB());
}