void LightPathtracer::SetScreenSize(const gl::Texture2D& _newBackbuffer)
{
_newBackbuffer.BindImage(0, gl::Texture::ImageAccess::READ_WRITE);
m_lockTexture.reset(new gl::Texture2D(_newBackbuffer.GetWidth(), _newBackbuffer.GetHeight(), gl::TextureFormat::R32UI));
m_lockTexture->ClearToZero(0);
m_lockTexture->BindImage(1, gl::Texture::ImageAccess::READ_WRITE);
// Rule: Every block (size = m_localSizeLightPathtracer) should work with the same initial light sample!
int numPixels = _newBackbuffer.GetWidth() * _newBackbuffer.GetHeight();
m_numRaysPerLightSample = std::max(m_localSizeLightPathtracer, (numPixels / m_rendererSystem.GetNumInitialLightSamples() / m_localSizeLightPathtracer) * m_localSizeLightPathtracer);
//m_numRaysPerLightSample = 1<<16;
if(m_lightpathtraceUBO)
{
gl::MappedUBOView mapView(m_lightpathtraceUBOInfo, m_lightpathtraceUBO->Map(gl::Buffer::MapType::WRITE, gl::Buffer::MapWriteFlag::NONE));
mapView["NumRaysPerLightSample"].Set(static_cast<std::int32_t>(m_numRaysPerLightSample));
m_lightpathtraceUBO->Unmap();
}
}
void Pathtracer::SetScreenSize(const gl::Texture2D& _newBackbuffer)
{
_newBackbuffer.BindImage(0, gl::Texture::ImageAccess::READ_WRITE);
}