Qt3D: Problem with UV texture mapping.

shav

Hello everyone!

In my application I want to use PMX/PMD models. For this I've implemented parser for both model formats and this parser works perfect.
The models are renders by Qt3D module from Qt and this works fine.
I have the problem with UV texture. The results which I'm getting looke likt this:

Texture is here:

// Create geometry render
m_geometryRender = new Qt3DRender::QGeometryRenderer(this);
m_geometryRender->setInstanceCount(1);
auto geometry = new ShavMmdPmxGeometry(m_model, m_geometryRender);
m_geometryRender->setGeometry(geometry);

// Load UV texture
auto url = QUrl::fromLocalFile("<path to body texture>");
auto image = new Qt3DRender::QTextureImage(m_geometryRender);
image->setSource(url);

// Create material
auto diffuseMapMaterial = new Qt3DExtras::QDiffuseMapMaterial(m_geometryRender);
diffuseMapMaterial->diffuse()->addTextureImage(image);
diffuseMapMaterial->diffuse()->setMaximumAnisotropy(16.0f);

// Add components
addComponent(m_geometryRender);
addComponent(diffuseMapMaterial);

The code for create geometry:

// Initialise
m_positionAttribute = new Qt3DRender::QAttribute(this);
m_textureCoordinateAttribute = new Qt3DRender::QAttribute(this);
m_normalAttribute = new Qt3DRender::QAttribute(this);
m_indexAttribute = new Qt3DRender::QAttribute(this);

m_vertexBuffer = new Qt3DRender::QBuffer(this);
m_vertexBuffer->setUsage(Qt3DRender::QBuffer::StreamDraw);
m_indexBuffer = new Qt3DRender::QBuffer(this);
m_indexBuffer->setUsage(Qt3DRender::QBuffer::StreamDraw);

m_positionAttribute->setName(Qt3DRender::QAttribute::defaultPositionAttributeName());
m_positionAttribute->setVertexBaseType(Qt3DRender::QAttribute::Float);
m_positionAttribute->setVertexSize(3);
m_positionAttribute->setAttributeType(Qt3DRender::QAttribute::VertexAttribute);
m_positionAttribute->setBuffer(m_vertexBuffer);

m_normalAttribute->setName(Qt3DRender::QAttribute::defaultNormalAttributeName());
m_normalAttribute->setVertexBaseType(Qt3DRender::QAttribute::Float);
m_normalAttribute->setVertexSize(3);
m_normalAttribute->setAttributeType(Qt3DRender::QAttribute::VertexAttribute);
m_normalAttribute->setBuffer(m_vertexBuffer);

m_textureCoordinateAttribute->setAttributeType(Qt3DRender::QAttribute::VertexAttribute);
m_textureCoordinateAttribute->setBuffer(m_vertexBuffer);
m_textureCoordinateAttribute->setVertexBaseType(Qt3DRender::QAttribute::Float);
m_textureCoordinateAttribute->setVertexSize(2);
m_textureCoordinateAttribute->setName(Qt3DRender::QAttribute::defaultTextureCoordinateAttributeName());

m_indexAttribute->setAttributeType(Qt3DRender::QAttribute::IndexAttribute);
m_indexAttribute->setVertexBaseType(Qt3DRender::QAttribute::UnsignedShort);
m_indexAttribute->setBuffer(m_indexBuffer);

//Apply geometry
auto vertices = m_pmx->getVertices();
auto verticesCount = m_pmx->getVertexCount();
auto indicesCount = m_pmx->getIndices().count();
if(!vertices || verticesCount == 0 || indicesCount == 0) { return; }

const quint32 elementSize = 3 + 3 + 2;
const quint32 stride = elementSize * sizeof(float);

// Generate vertex data.
auto verticesData = m_pmx->toVertexByteArray();
m_vertexBuffer->setData(verticesData);
m_positionAttribute->setByteOffset(0);
m_positionAttribute->setByteStride(stride);
m_positionAttribute->setCount(verticesCount);

// Normal Attribytes
m_normalAttribute->setByteOffset(3 * sizeof(float));
m_normalAttribute->setByteStride(stride);
m_normalAttribute->setCount(verticesCount);

// Texture coordinate
m_textureCoordinateAttribute->setByteOffset(2 * sizeof(float));
m_textureCoordinateAttribute->setCount(verticesCount);

// Generate Indices
auto indicesData = m_pmx->toIndicesByteArray();
m_indexBuffer->setData(indicesData);
m_indexAttribute->setCount(indicesCount);

// Apply geometry
addAttribute(m_positionAttribute);
addAttribute(m_normalAttribute);
addAttribute(m_indexAttribute);
addAttribute(m_textureCoordinateAttribute);

My question is what I do wrong with texture render?

Unsolved Qt3D: Problem with UV texture mapping.