   Bottleneck in MD5 animation
Well met, I have implemented animation into my 3d engine [dx11]. I chose the md5 format, known from doom 3 I think, because it appeared to be the most simple format for bonebased animations (correct me, if im wrong on this).Anyway, I manage to make it work, but appearently I created a bottleneck somewhere, because even a very simple anymation with 3 bones and like 50 polys makes everything slow as hell when played more than 10 times at once on the screen.  I doublechecked the code for the animation itself, im not allocating memory every frame or something like that. So my best guess is that it has to do with the passing from CPU to GPU, which is done like this: D3D11_MAPPED_SUBRESOURCE mappedResource;d3d11DevCon->Map(matrixBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource);cbPerObject* dataPtr;dataPtr = (cbPerObject*)mappedResource.pData;dataPtr->worldMatrix = World;dataPtr->viewMatrix = camView;dataPtr->projectionMatrix = camProjection;d3d11DevCon->Unmap(matrixBuffer, 0);d3d11DevCon->VSSetConstantBuffers(0, 1, &matrixBuffer);   for(int i=0;i<numSubsets;i++){ d3d11DevCon->IASetIndexBuffer(subsets[i].indexBuff, DXGI_FORMAT_R32_UINT, 0);d3d11DevCon->IASetVertexBuffers( 0, 1, &subsets[i].vertBuff, &stride, &offset );d3d11DevCon->PSSetShaderResources( 0, 1, &subsets[i].texture);d3d11DevCon->DrawIndexed(subsets[i].indices.size(), 0, 0 ); }I am only using Vertex and Pixelshader, both very basic. EDIT: After further inverstigation, I figured that this part is the slow one, not the actual rendering. It's the update for the vertices using the bones.EDIT2: Okey, I managed to narrow down the problem - using more-poly objects makes me lose more performace. Therefore, the problem lies not in something nasty called per object, but something called per vertex/joint .... Or MD5 is just a really slow format, but I can't see why this would be the case. Someone please enlighten me :( struct Weight{int jointID;float bias;D3DXVECTOR3 normal;D3DXVECTOR3 pos;}; struct ModelSubset{ int numTriangles; vector<Vertex> vertices;vector<DWORD> indices;vector<Weight> weights; ID3D11ShaderResourceView* texture; vector<D3DXVECTOR3> positions;VertexPosNormalTex *verts;unsigned long *indis; ID3D11Buffer* vertBuff; ID3D11Buffer* indexBuff;};   void animatedModel::updateWithAnimation(float deltaTime, int animationID){  currentAnimationID = animationID;animations[animationID].currAnimTime += deltaTime; // Update the current animation time if(animations[animationID].currAnimTime > animations[animationID].totalAnimTime){animations[animationID].currAnimTime = 0.0f;} // Which frame are we onfloat currentFrame = animations[animationID].currAnimTime * animations[animationID].frameRate; int frame0 = floorf( currentFrame );int frame1 = frame0 + 1; // Make sure we don't go over the number of frames if(frame0 == animations[animationID].numFrames-1){frame1 = 0;} float interpolation = currentFrame - frame0; // Get the remainder (in time) between frame0 and frame1 to use as interpolation factor vector<joint> interpolatedSkeleton; // Create a frame skeleton to store the interpolated skeletons in // Compute the interpolated skeletonfor( int i = 0; i < animations[animationID].numJoints; i++){joint tempJoint;joint joint0 = animations[animationID].frameSkeleton[frame0][i]; // Get the i'th joint of frame0's skeletonjoint joint1 = animations[animationID].frameSkeleton[frame1][i]; // Get the i'th joint of frame1's skeleton tempJoint.parentID = joint0.parentID; // Set the tempJoints parent id // Turn the two quaternions into XMVECTORs for easy computationsD3DXQUATERNION joint0Orient = D3DXQUATERNION(joint0.orientation.x, joint0.orientation.y, joint0.orientation.z, joint0.orientation.w);D3DXQUATERNION joint1Orient = D3DXQUATERNION(joint1.orientation.x, joint1.orientation.y, joint1.orientation.z, joint1.orientation.w); // Interpolate positionstempJoint.pos.x = joint0.pos.x + (interpolation * (joint1.pos.x - joint0.pos.x));tempJoint.pos.y = joint0.pos.y + (interpolation * (joint1.pos.y - joint0.pos.y));tempJoint.pos.z = joint0.pos.z + (interpolation * (joint1.pos.z - joint0.pos.z)); // Interpolate orientations using spherical interpolation (Slerp)D3DXQUATERNION tempO;D3DXQuaternionSlerp(&tempO, &joint0Orient, &joint1Orient, interpolation);tempJoint.orientation.x = tempO.x;tempJoint.orientation.y = tempO.y;tempJoint.orientation.z = tempO.z;tempJoint.orientation.w = tempO.w; interpolatedSkeleton.push_back(tempJoint); // Push the joint back into our interpolated skeleton} for ( int k = 0; k < numSubsets; k++){for ( int i = 0; i < subsets[k].vertices.size(); ++i ){Vertex tempVert = subsets[k].vertices[i];tempVert.pos = D3DXVECTOR3(0, 0, 0); // Make sure the vertex's pos is cleared firsttempVert.normal = D3DXVECTOR3(0,0,0); // Clear vertices normal // Sum up the joints and weights information to get vertex's position and normalfor ( int j = 0; j < tempVert.WeightCount; ++j ){Weight tempWeight = subsets[k].weights[tempVert.StartWeight + j];joint tempJoint = interpolatedSkeleton[tempWeight.jointID]; // Convert joint orientation and weight pos to vectors for easier computationD3DXQUATERNION tempJointOrientation = D3DXQUATERNION(tempJoint.orientation.x, tempJoint.orientation.y, tempJoint.orientation.z, tempJoint.orientation.w);D3DXQUATERNION tempWeightPos = D3DXQUATERNION(tempWeight.pos.x, tempWeight.pos.y, tempWeight.pos.z, 0.0f); // We will need to use the conjugate of the joint orientation quaternionD3DXQUATERNION tempJointOrientationConjugate;D3DXQuaternionInverse(&tempJointOrientationConjugate, &tempJointOrientation); // Calculate vertex position (in joint space, eg. rotate the point around (0,0,0)) for this weight using the joint orientation quaternion and its conjugate// We can rotate a point using a quaternion with the equation "rotatedPoint = quaternion * point * quaternionConjugate"D3DXVECTOR3 rotatedPoint;D3DXQUATERNION temp1, temp2;D3DXQuaternionMultiply(&temp1, &tempJointOrientation, &tempWeightPos);D3DXQuaternionMultiply(&temp2, &temp1, &tempJointOrientationConjugate);rotatedPoint.x = temp2.x;rotatedPoint.y = temp2.y;rotatedPoint.z = temp2.z; // Now move the verices position from joint space (0,0,0) to the joints position in world space, taking the weights bias into accounttempVert.pos.x += ( tempJoint.pos.x + rotatedPoint.x ) * tempWeight.bias;tempVert.pos.y += ( tempJoint.pos.y + rotatedPoint.y ) * tempWeight.bias;tempVert.pos.z += ( tempJoint.pos.z + rotatedPoint.z ) * tempWeight.bias; // Compute the normals for this frames skeleton using the weight normals from before// We can comput the normals the same way we compute the vertices position, only we don't have to translate them (just rotate)D3DXQUATERNION tempWeightNormal = D3DXQUATERNION(tempWeight.normal.x, tempWeight.normal.y, tempWeight.normal.z, 0.0f); // Rotate the normalD3DXVECTOR3 rotatedPoint2;D3DXQUATERNION temp3, temp4;D3DXQuaternionMultiply(&temp3, &tempJointOrientation, &tempWeightPos);D3DXQuaternionMultiply(&temp4, &temp3, &tempJointOrientationConjugate);rotatedPoint2.x = temp4.x; rotatedPoint2.y = temp4.y; rotatedPoint2.z = temp4.z; // Add to vertices normal and ake weight bias into accounttempVert.normal.x -= rotatedPoint2.x * tempWeight.bias;tempVert.normal.y -= rotatedPoint2.y * tempWeight.bias;tempVert.normal.z -= rotatedPoint2.z * tempWeight.bias;} subsets[k].positions[i] = tempVert.pos; // Store the vertices position in the position vector instead of straight into the vertex vectorsubsets[k].vertices[i].normal = tempVert.normal; // Store the vertices normalD3DXVec3Normalize(&subsets[k].vertices[i].normal, &subsets[k].vertices[i].normal); }  // Put the positions into the vertices for this subsetfor(int i = 0; i < subsets[k].vertices.size(); i++){subsets[k].vertices[i].pos = subsets[k].positions[i];subsets[k].verts[i].pos = subsets[k].vertices[i].pos;subsets[k].verts[i].normal = subsets[k].vertices[i].normal;subsets[k].verts[i].texcoord = subsets[k].vertices[i].texCoord;}  D3D11_MAPPED_SUBRESOURCE mappedVertBuff;d3d11DevCon->Map(subsets[k].vertBuff, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedVertBuff);VertexPosNormalTex *updatedV; updatedV = (VertexPosNormalTex *)mappedVertBuff.pData;for(int h=0;h<subsets[k].vertices.size();h++){updatedV[h].pos = subsets[k].verts[h].pos;updatedV[h].normal = subsets[k].verts[h].normal;updatedV[h].texcoord = subsets[k].verts[h].texcoord;}d3d11DevCon->Unmap(subsets[k].vertBuff, 0); }}