Example #1
0
void MeshViewer::trace( const RayGenCameraData& camera_data )
{
	if (m_animation && GLUTDisplay::isBenchmark())
	{
		static float angleU = 0.0f, angleV = 0.0f, scale = 1.0f, dscale = 0.96f, backside = 0.0f;
		static int phase = 0, accumed_frames = 0;
		const float maxang = M_PIf * 0.2f;
		const float rotvel = M_2_PIf*0.1f;
		float3 c = m_aabb.center();
		float3 e = camera_data.eye;

		Matrix3x3 m = make_matrix3x3(Matrix4x4::rotate(angleV + backside, normalize(camera_data.V)) * 
			Matrix4x4::rotate(angleU, normalize(camera_data.U)) * Matrix4x4::scale(make_float3(scale, scale, scale)));

		m_context["eye"]->setFloat( c-m*(c-e) );
		m_context["U"]->setFloat( m*camera_data.U );
		m_context["V"]->setFloat( m*camera_data.V );
		m_context["W"]->setFloat( m*camera_data.W );
	} else {
		m_context["eye"]->setFloat( camera_data.eye );
		m_context["U"]->setFloat( camera_data.U );
		m_context["V"]->setFloat( camera_data.V );
		m_context["W"]->setFloat( camera_data.W );
	}

	//Buffer buffer = m_context["output_buffer"]->getBuffer();
	//RTsize buffer_width, buffer_height;
	//buffer->getSize( buffer_width, buffer_height );

	//float3 V = m_context["V"]->getFloat3();
	//float pixel_size = V.y * (-(((0 / (float) HEIGHT) * 2.f) - ((1 / (float) HEIGHT) * 2.f)));
	//m_context["pixel_size"]->setFloat(pixel_size);

	//m_context->launch( 0, static_cast<unsigned int>(buffer_width), 1 );

	Buffer buffer = m_context["output_buffer"]->getBuffer();
	RTsize buffer_width, buffer_height;
	buffer->getSize( buffer_width, buffer_height );

	float3 V = m_context["V"]->getFloat3();
	float pixel_size = V.y * (-(((0 / (float) HEIGHT) * 2.f) - ((1 / (float) HEIGHT) * 2.f)));
	m_context["pixel_size"]->setFloat(pixel_size);

	m_context->launch( 0, WIDTH, HEIGHT);

	m_context->launch( 1, static_cast<unsigned int>(buffer_width), 1 );
}
Quaternion make_quaternion(const float4x4 &rot)
{
  return make_quaternion(make_matrix3x3(rot));
}