set_vertex_data()

void MayaFlux::Nodes::GpuSync::GeometryWriterNode::set_vertex_data	(	const void *	data,
		size_t	size_bytes
	)

Copy raw vertex data into buffer.

Parameters

data	Pointer to vertex data
size_bytes	Number of bytes to copy

Direct memory copy into m_vertex_buffer. User is responsible for ensuring data format matches stride.

Definition at line 46 of file GeometryWriterNode.cpp.

{
    if (!data || size_bytes == 0) {
        MF_ERROR(Journal::Component::Nodes, Journal::Context::NodeProcessing,
            "Cannot set vertex data: null data or zero size");
        return;
    }
 
    if (m_vertex_stride == 0) {
        MF_ERROR(Journal::Component::Nodes, Journal::Context::NodeProcessing,
            "Cannot set vertex data: stride is 0");
        return;
    }
 
    auto expected_vertex_count = static_cast<uint32_t>(size_bytes / m_vertex_stride);
 
    if (size_bytes % m_vertex_stride != 0) {
        MF_WARN(Journal::Component::Nodes, Journal::Context::NodeProcessing,
            "Vertex data size {} is not multiple of stride {}",
            size_bytes, m_vertex_stride);
    }
 
    size_t required_floats = size_bytes / sizeof(float);
    if (m_vertex_buffer.size() < required_floats) {
        m_vertex_buffer.resize(required_floats);
    }
 
    std::memcpy(m_vertex_buffer.data(), data, size_bytes);
    m_vertex_count = expected_vertex_count;
    m_needs_layout_update = true;
    m_vertex_data_dirty = true;
 
    MF_DEBUG(Journal::Component::Nodes, Journal::Context::NodeProcessing,
        "GeometryWriterNode: Set vertex data ({} vertices, {} bytes)",
        m_vertex_count, size_bytes);
}

References m_needs_layout_update, m_vertex_buffer, m_vertex_count, m_vertex_data_dirty, m_vertex_stride, MF_DEBUG, MF_ERROR, MF_WARN, MayaFlux::Journal::NodeProcessing, and MayaFlux::Journal::Nodes.