| 7 | namespace ospray { |
| 8 | |
| 9 | void MotionTransform::readParams(ISPCDeviceObject &obj) |
| 10 | { |
| 11 | transforms = obj.getParamDataT<affine3f>("motion.transform"); |
| 12 | if (transforms) { |
| 13 | motionBlur = transforms->size() > 1; |
| 14 | quaternion = false; |
| 15 | transform = (*transforms)[0]; |
| 16 | } else { // look for SRT |
| 17 | auto shift = obj.getParamDataT<vec3f>("motion.pivot"); |
| 18 | auto scale = obj.getParamDataT<vec3f>("motion.scale"); |
| 19 | auto rotation = obj.getParamDataT<quatf>("motion.rotation"); |
| 20 | auto translation = obj.getParamDataT<vec3f>("motion.translation"); |
| 21 | quaternion = shift || scale || rotation || translation; |
| 22 | if (quaternion) { |
| 23 | // determine (minimum) size |
| 24 | size_t size = std::numeric_limits<size_t>::max(); |
| 25 | if (shift) |
| 26 | size = shift->size(); |
| 27 | if (scale) |
| 28 | size = std::min(size, scale->size()); |
| 29 | if (rotation) |
| 30 | size = std::min(size, rotation->size()); |
| 31 | if (translation) |
| 32 | size = std::min(size, translation->size()); |
| 33 | motionBlur = size > 1; |
| 34 | quaternions.resize(size); |
| 35 | for (size_t i = 0; i < size; i++) { |
| 36 | auto *qdecomp = &quaternions[i]; |
| 37 | rtcInitQuaternionDecomposition(qdecomp); |
| 38 | if (shift) { |
| 39 | const vec3f &s = (*shift)[i]; |
| 40 | rtcQuaternionDecompositionSetShift(qdecomp, s.x, s.y, s.z); |
| 41 | } |
| 42 | if (scale) { |
| 43 | const vec3f &s = (*scale)[i]; |
| 44 | rtcQuaternionDecompositionSetScale(qdecomp, s.x, s.y, s.z); |
| 45 | } |
| 46 | if (rotation) { |
| 47 | const quatf &q = (*rotation)[i]; |
| 48 | rtcQuaternionDecompositionSetQuaternion(qdecomp, q.r, q.i, q.j, q.k); |
| 49 | } |
| 50 | if (translation) { |
| 51 | const vec3f &t = (*translation)[i]; |
| 52 | rtcQuaternionDecompositionSetTranslation(qdecomp, t.x, t.y, t.z); |
| 53 | } |
| 54 | } |
| 55 | } else { // add single transform |
| 56 | quaternions.clear(); |
| 57 | motionBlur = false; |
| 58 | transform = obj.getParam<affine3f>( |
| 59 | "transform", obj.getParam<affine3f>("xfm", affine3f(one))); |
| 60 | } |
| 61 | } |
| 62 | time = range1f(0.0f, 1.0f); |
| 63 | if (motionBlur) { |
| 64 | time = obj.getParam<range1f>("time", range1f(0.0f, 1.0f)); |
| 65 | if (time.upper < time.lower) |
| 66 | time.upper = time.lower; |