adds a ground plane to the scene */
| 305 | |
| 306 | /* adds a ground plane to the scene */ |
| 307 | unsigned int addGroundPlane (RTCScene scene_i) |
| 308 | { |
| 309 | /* create a triangulated plane with 2 triangles and 4 vertices */ |
| 310 | RTCGeometry geom = rtcNewGeometry (g_device, RTC_GEOMETRY_TYPE_TRIANGLE); |
| 311 | |
| 312 | /* set vertices */ |
| 313 | Vertex* vertices = (Vertex*) rtcSetNewGeometryBuffer(geom, RTC_BUFFER_TYPE_VERTEX, 0, RTC_FORMAT_FLOAT3, sizeof(Vertex), 4); |
| 314 | vertices[0].x = -10; vertices[0].y = -2; vertices[0].z = -10; |
| 315 | vertices[1].x = -10; vertices[1].y = -2; vertices[1].z = +10; |
| 316 | vertices[2].x = +10; vertices[2].y = -2; vertices[2].z = -10; |
| 317 | vertices[3].x = +10; vertices[3].y = -2; vertices[3].z = +10; |
| 318 | |
| 319 | /* set triangles */ |
| 320 | Triangle* triangles = (Triangle*) rtcSetNewGeometryBuffer(geom, RTC_BUFFER_TYPE_INDEX, 0, RTC_FORMAT_UINT3, sizeof(Triangle), 2); |
| 321 | triangles[0].v0 = 0; triangles[0].v1 = 1; triangles[0].v2 = 2; |
| 322 | triangles[1].v0 = 1; triangles[1].v1 = 3; triangles[1].v2 = 2; |
| 323 | |
| 324 | rtcCommitGeometry(geom); |
| 325 | unsigned int geomID = rtcAttachGeometry(scene_i, geom); |
| 326 | rtcReleaseGeometry(geom); |
| 327 | return geomID; |
| 328 | } |
| 329 | |
| 330 | /* called by the C++ code for initialization */ |
| 331 | extern "C" void device_init (char* cfg) |
no test coverage detected