void AccuracyRingRenderable::RenderSpheres(Eegeo::Rendering::GLState &glState) const
{
glState.BindTexture2D(0);
glState.ColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
glState.DepthMask(GL_FALSE);
glState.DepthTest.Enable();
glState.DepthFunc(GL_LESS);
glState.CullFace.Disable();
glState.StencilTest.Enable();
glState.StencilFunc(GL_ALWAYS, 1, 0xFF);
glState.StencilOpSeparate(GL_FRONT, GL_KEEP, GL_KEEP, GL_INCR_WRAP);
glState.StencilOpSeparate(GL_BACK, GL_KEEP, GL_KEEP, GL_DECR_WRAP);
Eegeo::m44 transform;
Eegeo::m44 mvp;
transform.Scale(m_outerRingRadius*2);
transform.SetRow(3, Eegeo::v4(m_cameraRelativePosition, 1.0f));
Eegeo::m44::Mul(mvp, m_viewProjection, transform);
m_sphereRenderable.SetModelViewProjection(mvp);
m_sphereRenderable.Render(glState);
transform.Scale(m_innerRingRadius*2);
transform.SetRow(3, Eegeo::v4(m_cameraRelativePosition, 1.0f));
Eegeo::m44::Mul(mvp, m_viewProjection, transform);
m_sphereRenderable.SetModelViewProjection(mvp);
m_sphereRenderable.Render(glState);
}
void AccuracyRingRenderable::RenderClearStencil(Eegeo::Rendering::GLState& glState) const
{
m_colorMaterial.SetState(glState);
glState.DepthMask(GL_FALSE);
glState.DepthTest.Enable();
glState.DepthFunc(GL_ALWAYS);
glState.ColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
glState.Blend.Disable();
glState.StencilTest.Enable();
glState.StencilFunc(GL_ALWAYS, StencilClear, 0xFF);
glState.StencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE);
m_quadRenderable.Render(glState);
}