Ragdoll Matrix Help
by Aussiemandias · in Torque 3D Professional · 07/23/2014 (9:30 am) · 3 replies
I'm trying to add a ragdoll into my game. Essentially I get the world matrix of the physics object and then multiply that by my models node rotations so it all lines up. This works pretty good, except for one thing.
It's 2x bigger than it should be.
Does anyone have any idea how to fix this? I've tried scaling the matrix but that just changes the thickness of the model.
In this picture the red skeleton at the bottom is the position of the nodes in world space.
I'm pretty stuck at this point, does anyone have any ideas? I find matrixes very confusing.
It's 2x bigger than it should be.
Does anyone have any idea how to fix this? I've tried scaling the matrix but that just changes the thickness of the model.
In this picture the red skeleton at the bottom is the position of the nodes in world space.
MatrixF worldMat(true); //Node matrix in world space mShapeInstance->getShape()->getNodeWorldTransform(nodeId,&worldMat); MatrixF physMat = mPhysicsRagdoll->getNodeTransform(bone); //Phyics matrix in world space MatrixF finalMat(true); finalMat = physMat; finalMat.mul(worldMat); return finalMat;
I'm pretty stuck at this point, does anyone have any ideas? I find matrixes very confusing.
#2
I only have one other question. I have an offset specified as a Point3F that I want to add to the position of the bone (for offsetting the mesh)
This works if the model is upright but if the model falls over then the offset applies wrongly. This is because I'm not rotating the offset with the rigid body as it falls, so an offset of 2.0 on the Z axis will still be on the Z axis when the model is face down.
Anyone know how to fix this? I want to release it to the community once it's done.
07/24/2014 (1:40 am)
I had a look at that and it helped me solve an issue I had with specifying joint rotations. Here's the result.I only have one other question. I have an offset specified as a Point3F that I want to add to the position of the bone (for offsetting the mesh)
This works if the model is upright but if the model falls over then the offset applies wrongly. This is because I'm not rotating the offset with the rigid body as it falls, so an offset of 2.0 on the Z axis will still be on the Z axis when the model is face down.
Anyone know how to fix this? I want to release it to the community once it's done.
#3
07/24/2014 (1:32 pm)
mObjToWorld.mulP(offset)? 
Chris DeBoy