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FBX2glTF
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Change the way that unit conversion affects the scene.

This commit is contained in:
PLAINCONCEPTS\davila 2018-01-25 15:42:04 +01:00 committed by Pär Winzell
parent f6ce7e345d
commit 4ec8c8e34d
1 changed files with 14 additions and 11 deletions
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23
src/Fbx2Raw.cpp
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@ -26,6 +26,8 @@
extern bool verboseOutput;
float scaleFactor;
template<typename _type_>
class FbxLayerElementAccess
{
@ -758,13 +760,16 @@ static void ReadMesh(RawModel &raw, FbxScene *pScene, FbxNode *pNode, const std:
RawSurface &rawSurface = raw.GetSurface(rawSurfaceIndex);
Mat4f scaleMatrix = Mat4f::FromScaleVector(Vec3f(scaleFactor, scaleFactor, scaleFactor));
Mat4f invScaleMatrix = scaleMatrix.Inverse();
rawSurface.skeletonRootId = (skinning.IsSkinned()) ? skinning.GetRootNode() : pNode->GetUniqueID();
for (int jointIndex = 0; jointIndex < skinning.GetNodeCount(); jointIndex++) {
const long jointId = skinning.GetJointId(jointIndex);
raw.GetNode(raw.GetNodeById(jointId)).isJoint = true;
rawSurface.jointIds.emplace_back(jointId);
rawSurface.inverseBindMatrices.push_back(toMat4f(skinning.GetInverseBindMatrix(jointIndex)));
rawSurface.inverseBindMatrices.push_back(invScaleMatrix * toMat4f(skinning.GetInverseBindMatrix(jointIndex)) * scaleMatrix);
rawSurface.jointGeometryMins.emplace_back(FLT_MAX, FLT_MAX, FLT_MAX);
rawSurface.jointGeometryMaxs.emplace_back(-FLT_MAX, -FLT_MAX, -FLT_MAX);
}
@ -870,9 +875,9 @@ static void ReadMesh(RawModel &raw, FbxScene *pScene, FbxNode *pNode, const std:
const FbxVector2 fbxUV1 = uvLayer1.GetElement(polygonIndex, polygonVertexIndex, controlPointIndex, FbxVector2(0.0f, 0.0f));
RawVertex &vertex = rawVertices[vertexIndex];
vertex.position[0] = (float) fbxPosition[0];
vertex.position[1] = (float) fbxPosition[1];
vertex.position[2] = (float) fbxPosition[2];
vertex.position[0] = (float) fbxPosition[0] * scaleFactor;
vertex.position[1] = (float) fbxPosition[1] * scaleFactor;
vertex.position[2] = (float) fbxPosition[2] * scaleFactor;
vertex.normal[0] = (float) fbxNormal[0];
vertex.normal[1] = (float) fbxNormal[1];
vertex.normal[2] = (float) fbxNormal[2];
@ -906,7 +911,7 @@ static void ReadMesh(RawModel &raw, FbxScene *pScene, FbxNode *pNode, const std:
RawBlendVertex blendVertex;
// the morph target data must be transformed just as with the vertex positions above
const FbxVector4 &shapePosition = transform.MultNormalize(targetShape->positions[controlPointIndex]);
blendVertex.position = toVec3f(shapePosition - fbxPosition);
blendVertex.position = toVec3f(shapePosition - fbxPosition) * scaleFactor;
if (targetShape->normals.LayerPresent()) {
const FbxVector4 &normal = targetShape->normals.GetElement(
polygonIndex, polygonVertexIndex, controlPointIndex, FbxVector4(0.0f, 0.0f, 0.0f, 0.0f), inverseTransposeTransform, true);
@ -1108,7 +1113,7 @@ static void ReadNodeHierarchy(
const FbxQuaternion localRotation = localTransform.GetQ();
const FbxVector4 localScaling = computeLocalScale(pNode);
node.translation = toVec3f(localTranslation);
node.translation = toVec3f(localTranslation) * scaleFactor;
node.rotation = toQuatf(localRotation);
node.scale = toVec3f(localScaling);
@ -1205,7 +1210,7 @@ static void ReadAnimations(RawModel &raw, FbxScene *pScene)
fabs(localScale[1] - baseScaling[1]) > epsilon ||
fabs(localScale[2] - baseScaling[2]) > epsilon);
channel.translations.push_back(toVec3f(localTranslation));
channel.translations.push_back(toVec3f(localTranslation) * scaleFactor);
channel.rotations.push_back(toQuatf(localRotation));
channel.scales.push_back(toVec3f(localScale));
}
@ -1419,9 +1424,7 @@ bool LoadFBXFile(RawModel &raw, const char *fbxFileName, const char *textureExte
// Use meters as the default unit for glTF
FbxSystemUnit sceneSystemUnit = pScene->GetGlobalSettings().GetSystemUnit();
if (sceneSystemUnit != FbxSystemUnit::m) {
FbxSystemUnit::m.ConvertScene(pScene);
}
scaleFactor = FbxSystemUnit::m.GetConversionFactorFrom(sceneSystemUnit);
ReadNodeHierarchy(raw, pScene, pScene->GetRootNode(), 0, "");
ReadNodeAttributes(raw, pScene, pScene->GetRootNode(), textureLocations);