| 1 | // Copyright (C) 2011 Kornel Kisielewicz
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| 2 | // This file is part of NV Libraries.
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| 3 | // For conditions of distribution and use, see copyright notice in nv.hh
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| 4 |
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| 5 | #include "nv/gfx/skeletal_mesh.hh"
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| 6 |
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| 7 | #include <glm/gtc/matrix_access.hpp>
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| 8 | #include <glm/gtx/matrix_interpolation.hpp>
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| 9 | #include "nv/interface/context.hh"
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| 10 | #include "nv/interface/device.hh"
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| 11 |
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| 12 |
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| 13 | nv::skeletal_mesh::skeletal_mesh( device* a_device, md5_mesh_data* a_mesh_data )
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| 14 | : animated_mesh()
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| 15 | , m_mesh_data( nullptr )
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| 16 | , m_animation( nullptr )
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| 17 | , m_animation_time( 0 )
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| 18 | {
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| 19 | m_mesh_data = a_mesh_data->spawn();
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| 20 | m_va = a_device->create_vertex_array( a_mesh_data, nv::STREAM_DRAW );
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| 21 | }
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| 22 |
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| 23 |
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| 24 | void nv::skeletal_mesh::setup_animation( md5_animation* a_anim )
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| 25 | {
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| 26 | m_animation = a_anim;
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| 27 | m_animation_time = 0;
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| 28 | if ( m_animation )
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| 29 | {
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| 30 | m_transform.resize( m_animation->get_num_joints() );
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| 31 | update( 0 );
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| 32 | }
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| 33 | }
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| 34 |
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| 35 | void nv::skeletal_mesh::update( uint32 ms )
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| 36 | {
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| 37 | if ( m_animation )
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| 38 | {
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| 39 | m_animation_time += ms;
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| 40 | float frame_duration = 1000.f / (float)m_animation->get_frame_rate();
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| 41 | uint32 anim_duration = uint32( frame_duration * (float)m_animation->get_frame_count() );
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| 42 | while ( m_animation_time >= anim_duration ) m_animation_time -= anim_duration;
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| 43 | m_animation->update_skeleton( m_transform.data(), (float)m_animation_time * 0.001f );
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| 44 | m_mesh_data->apply( m_transform.data() );
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| 45 | vertex_buffer* vb = m_va->find_buffer( nv::POSITION );
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| 46 | vb->bind();
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| 47 | vb->update( m_mesh_data->data(), 0, m_mesh_data->size() );
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| 48 | vb->unbind();
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| 49 | }
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| 50 | }
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| 51 |
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| 52 | nv::skeletal_mesh::~skeletal_mesh()
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| 53 | {
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| 54 | delete m_va;
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| 55 | delete m_mesh_data;
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| 56 | }
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| 57 |
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| 58 | void nv::skeletal_mesh::run_animation( animation_entry* a_anim )
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| 59 | {
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| 60 | if ( a_anim != nullptr )
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| 61 | {
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| 62 | skeletal_animation_entry * anim = down_cast<skeletal_animation_entry>(a_anim);
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| 63 | setup_animation( anim->m_animation );
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| 64 | }
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| 65 | else
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| 66 | {
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| 67 | setup_animation( nullptr );
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| 68 | }
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| 69 | }
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