void MeshViewer::initCamera( InitialCameraData& camera_data )
{
// Set up camera
/*float max_dim = m_aabb.maxExtent();
float3 eye = m_aabb.center();
eye.y = m_aabb.m_min.y;
eye.z = max_dim;
float3 lookAt = eye;
lookAt.z = m_aabb.center().z;*/
float3 eye = make_float3(130.f, 400.f, 90.f);
float3 lookAt = m_aabb.center();
camera_data = InitialCameraData(eye, lookAt, make_float3( 0.0f, 1.0f, 0.0f ), 30.0f); // (eye, lookAt, up, vfov)
// Declare camera variables. The values do not matter, they will be overwritten in trace.
m_context[ "eye"]->setFloat(make_float3(0.0f, 0.0f, 0.0f));
m_context[ "U" ]->setFloat(make_float3(0.0f, 0.0f, 0.0f));
m_context[ "V" ]->setFloat(make_float3(0.0f, 0.0f, 0.0f));
m_context[ "W" ]->setFloat(make_float3(0.0f, 0.0f, 0.0f));
}
void CannonBall::initScene( InitialCameraData& camera_data )
{
// Two Rays, on light and one shadow
m_context->setRayTypeCount( 2 );
m_context->setEntryPointCount( 1 );
m_context->setStackSize( 2520 );
m_context["max_depth"]->setInt( 6 );
m_context["radiance_ray_type"]->setUint( 0u );
m_context["shadow_ray_type"]->setUint( 1u );
m_context["scene_epsilon"]->setFloat( 1.e-3f );
// Output buffer
optix::Variable output_buffer = m_context["output_buffer"];
output_buffer->set(createOutputBuffer(RT_FORMAT_UNSIGNED_BYTE4, WIDTH, HEIGHT ) );
// Set up camera
camera_data = InitialCameraData( optix::make_float3( 8.3f, 4.0f, -20.0f ), // eye
optix::make_float3( 0.5f, 0.3f, 1.0f ), // lookat
optix::make_float3( 0.0f, 1.0f, 0.0f ), // up
60.0f ); // vfov
// Declare camera variables. The values do not matter, they will be overwritten in trace.
m_context["eye"]->setFloat( optix::make_float3( 0.0f, 0.0f, 0.0f ) );
m_context["U"]->setFloat( optix::make_float3( 0.0f, 0.0f, 0.0f ) );
m_context["V"]->setFloat( optix::make_float3( 0.0f, 0.0f, 0.0f ) );
m_context["W"]->setFloat( optix::make_float3( 0.0f, 0.0f, 0.0f ) );
// Ray generation program
std::string ptx_path = helpers.getPTXPath( project_name, "pinhole_camera.cu" );
optix::Program ray_gen_program = m_context->createProgramFromPTXFile( ptx_path, "pinhole_camera" );
m_context->setRayGenerationProgram( 0, ray_gen_program );
// Exception program
optix::Program exception_program = m_context->createProgramFromPTXFile( ptx_path, "exception" );
m_context->setExceptionProgram( 0, exception_program );
m_context["bad_color"]->setFloat( 0.0f, 1.0f, 0.0f );
// Miss program
m_context->setMissProgram( 0, m_context->createProgramFromPTXFile( helpers.getPTXPath( project_name, "constantbg.cu" ), "miss" ) );
m_context["bg_color"]->setFloat( optix::make_float3(108.0f/255.0f, 166.0f/255.0f, 205.0f/255.0f) * 0.5f );
// Setup lights
m_context["ambient_light_color"]->setFloat(0,0,0);
BasicLight lights[] = {
{ { -7.0f, 15.0f, -7.0f }, { .8f, .8f, .8f }, 1 }
};
optix::Buffer light_buffer = m_context->createBuffer(RT_BUFFER_INPUT);
light_buffer->setFormat(RT_FORMAT_USER);
light_buffer->setElementSize(sizeof(BasicLight));
light_buffer->setSize( sizeof(lights)/sizeof(lights[0]) );
memcpy(light_buffer->map(), lights, sizeof(lights));
light_buffer->unmap();
m_context["lights"]->set(light_buffer);
// Create scene geometry
createGeometry();
// FInalize
m_context->validate();
m_context->compile();
}
