////////////////////////////////////////////////////////////////////////////////
// SoftShadowsRenderer::updateLightCamera()
////////////////////////////////////////////////////////////////////////////////
void SoftShadowsRenderer::updateLightCamera(const nv::matrix4f &view)
{
// Assuming that the bbox of mesh1 contains everything
nv::vec3f center = m_knightMesh->getWorldCenter();
nv::vec3f extents = m_knightMesh->getExtents();
nv::vec3f box[2];
box[0] = center - extents;
box[1] = center + extents;
nv::vec3f bbox[2];
transformBoundingBox(bbox, box, view);
float frustumWidth = std::max(fabs(bbox[0][0]), fabs(bbox[1][0])) * 2.0f;
float frustumHeight = std::max(fabs(bbox[0][1]), fabs(bbox[1][1])) * 2.0f;
float zNear = -bbox[1][2];
float zFar = LIGHT_ZFAR;
nv::matrix4f proj;
perspectiveFrustum(proj, frustumWidth, frustumHeight, zNear, zFar);
m_lightViewProj = proj * view;
nv::matrix4f clip2Tex;
clip2Tex.set_scale(nv::vec3f(0.5f, 0.5f, 0.5f));
clip2Tex.set_translate(nv::vec3f(0.5f, 0.5f, 0.5f));
nv::matrix4f viewProjClip2Tex = clip2Tex * m_lightViewProj;
nv::matrix4f inverseView = nv::inverse(view);
nv::vec3f lightCenterWorld = transformCoord(inverseView, nv::vec3f(0.0f, 0.0f, 0.0f));
if (m_shadowMapShader)
{
m_shadowMapShader->enable();
m_shadowMapShader->setViewProjMatrix(m_lightViewProj);
m_shadowMapShader->disable();
CHECK_GL_ERROR();
}
if (m_visTexShader)
{
m_visTexShader->enable();
m_visTexShader->setLightZNear(zNear);
m_visTexShader->setLightZFar(zFar);
m_visTexShader->disable();
CHECK_GL_ERROR();
}
if (m_pcssShader)
{
m_pcssShader->enable();
m_pcssShader->setLightViewMatrix(view);
m_pcssShader->setLightViewProjClip2TexMatrix(viewProjClip2Tex);
m_pcssShader->setLightZNear(zNear);
m_pcssShader->setLightZFar(zFar);
m_pcssShader->setLightPosition(lightCenterWorld);
m_pcssShader->disable();
CHECK_GL_ERROR();
}
updateLightSize(frustumWidth, frustumHeight);
CHECK_GL_ERROR();
}
Instance::Instance(Keyframed<Vector> t, Keyframed<double> rx, Keyframed<double> ry, Keyframed<double> rz, Keyframed<Vector> s, std::shared_ptr<Shape> i):Shape(std::make_shared<NullMaterial>(),BoundingBox()),t(t),rx(rx),ry(ry),rz(rz),s(s),i(i),memo()
{
transformBoundingBox();
}
