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kraken/KREngine/kraken/KRMesh.h
Kearwood Gilbert e0aaafc327 - Implemented KRBehavior class 
- Imported animations now have the auto_play and loop flags set to false by default
- Implemented Pre-Rotation, Post-Rotation, Scale Offset, Rotate Offset, Scale Pivot, and Rotate Pivot transform attributes.
- Reduced use of euler angles, replacing them with Quaternions where possible
- Fixed bug with incorrect Y rotation in KRMat4::rotate
- Material / GL Context changes have been optimized to reduce redundant glUniform calls
- New KRMesh format implemented, with support for importing BindPose matrices
- Fixed bug that caused a duplicate "default_camera" node to be added rather than picking up an existing "default_camera" node imported from FBX.  This enables animations to drive the camera correctly.
- Implemented KRVector3::Scale
- Implemented KRVector3::KRVector3(double *v);
2013-05-24 12:20:47 -07:00

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//
// KRMesh.h
// KREngine
//
// Copyright 2012 Kearwood Gilbert. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other materials
// provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// The views and conclusions contained in the software and documentation are those of the
// authors and should not be interpreted as representing official policies, either expressed
// or implied, of Kearwood Gilbert.
//
#include "KREngine-common.h"
#include "KRVector2.h"
#include "KRMat4.h"
#include "KRContext.h"
#include "KRBone.h"
#include "KREngine-common.h"
#define MAX_VBO_SIZE 65535
#define KRENGINE_MAX_BONE_WEIGHTS_PER_VERTEX 4
#define KRENGINE_MAX_NAME_LENGTH 256
// MAX_VBO_SIZE must be divisible by 3 so triangles aren't split across VBO objects...
#define BUFFER_OFFSET(i) ((char *)NULL + (i))
#ifndef KRMesh_I
#define KRMesh_I
#include "KRMaterialManager.h"
#include "KRCamera.h"
#include "KRViewport.h"
#include "KRHitInfo.h"
class KRMaterial;
class KRNode;
class KRMesh : public KRResource {
public:
KRMesh(KRContext &context, std::string name, KRDataBlock *data);
KRMesh(KRContext &context, std::string name);
virtual ~KRMesh();
bool hasTransparency();
typedef enum {
KRENGINE_ATTRIB_VERTEX = 0,
KRENGINE_ATTRIB_NORMAL,
KRENGINE_ATTRIB_TANGENT,
KRENGINE_ATTRIB_TEXUVA,
KRENGINE_ATTRIB_TEXUVB,
KRENGINE_ATTRIB_BONEINDEXES,
KRENGINE_ATTRIB_BONEWEIGHTS,
KRENGINE_ATTRIB_VERTEX_SHORT,
KRENGINE_ATTRIB_NORMAL_SHORT,
KRENGINE_ATTRIB_TANGENT_SHORT,
KRENGINE_ATTRIB_TEXUVA_SHORT,
KRENGINE_ATTRIB_TEXUVB_SHORT,
KRENGINE_NUM_ATTRIBUTES
} vertex_attrib_t;
typedef enum {
KRENGINE_MODEL_FORMAT_TRIANGLES = 0,
KRENGINE_MODEL_FORMAT_STRIP,
KRENGINE_MODEL_FORMAT_INDEXED_TRIANGLES,
KRENGINE_MODEL_FORMAT_INDEXED_STRIP
} model_format_t;
typedef struct {
model_format_t format;
std::vector<KRVector3> vertices;
std::vector<__uint16_t> vertex_indexes;
std::vector<std::pair<int, int> > vertex_index_bases;
std::vector<KRVector2> uva;
std::vector<KRVector2> uvb;
std::vector<KRVector3> normals;
std::vector<KRVector3> tangents;
std::vector<int> submesh_starts;
std::vector<int> submesh_lengths;
std::vector<std::string> material_names;
std::vector<std::string> bone_names;
std::vector<std::vector<int> > bone_indexes;
std::vector<KRMat4> bone_bind_poses;
std::vector<std::vector<float> > bone_weights;
} mesh_info;
void render(const std::string &object_name, KRCamera *pCamera, std::vector<KRPointLight *> &point_lights, std::vector<KRDirectionalLight *> &directional_lights, std::vector<KRSpotLight *>&spot_lights, const KRViewport &viewport, const KRMat4 &matModel, KRTexture *pLightMap, KRNode::RenderPass renderPass, const std::vector<KRBone *> &bones);
std::string m_lodBaseName;
virtual std::string getExtension();
virtual bool save(const std::string& path);
virtual bool save(KRDataBlock &data);
void LoadData(/*std::vector<__uint16_t> vertex_indexes, std::vector<std::pair<int, int> > vertex_index_bases, std::vector<KRVector3> vertices, std::vector<KRVector2> uva, std::vector<KRVector2> uvb, std::vector<KRVector3> normals, std::vector<KRVector3> tangents, std::vector<int> submesh_starts, std::vector<int> submesh_lengths, std::vector<std::string> material_names, std::vector<std::string> bone_names, std::vector<KRMat4> bone_bind_poses, std::vector<std::vector<int> > bone_indexes, std::vector<std::vector<float> > bone_weights, model_format_t model_format, */const mesh_info &mi, bool calculate_normals, bool calculate_tangents);
void loadPack(KRDataBlock *data);
void convertToIndexed();
void optimize();
void optimizeIndexes();
void renderSubmesh(int iSubmesh, KRNode::RenderPass renderPass, const std::string &object_name, const std::string &material_name);
GLfloat getMaxDimension();
KRVector3 getMinPoint() const;
KRVector3 getMaxPoint() const;
typedef struct {
GLint start_vertex;
GLsizei vertex_count;
char szMaterialName[KRENGINE_MAX_NAME_LENGTH];
} Submesh;
typedef struct {
union {
struct { // For Indexed triangles / strips
uint16_t index_group;
uint16_t index_group_offset;
};
int32_t start_vertex; // For non-indexed trigangles / strips
};
int32_t vertex_count;
char szName[KRENGINE_MAX_NAME_LENGTH];
} pack_material;
typedef struct {
char szName[KRENGINE_MAX_NAME_LENGTH];
float bind_pose[16];
} pack_bone;
int getLODCoverage() const;
std::string getLODBaseName() const;
static bool lod_sort_predicate(const KRMesh *m1, const KRMesh *m2);
bool has_vertex_attribute(vertex_attrib_t attribute_type) const;
static bool has_vertex_attribute(int vertex_attrib_flags, vertex_attrib_t attribute_type);
int getSubmeshCount() const;
int getVertexCount(int submesh) const;
int getTriangleVertexIndex(int submesh, int index) const;
KRVector3 getVertexPosition(int index) const;
KRVector3 getVertexNormal(int index) const;
KRVector3 getVertexTangent(int index) const;
KRVector2 getVertexUVA(int index) const;
KRVector2 getVertexUVB(int index) const;
int getBoneIndex(int index, int weight_index) const;
float getBoneWeight(int index, int weight_index) const;
void setVertexPosition(int index, const KRVector3 &v);
void setVertexNormal(int index, const KRVector3 &v);
void setVertexTangent(int index, const KRVector3 & v);
void setVertexUVA(int index, const KRVector2 &v);
void setVertexUVB(int index, const KRVector2 &v);
void setBoneIndex(int index, int weight_index, int bone_index);
void setBoneWeight(int index, int weight_index, float bone_weight);
static size_t VertexSizeForAttributes(__int32_t vertex_attrib_flags);
static size_t AttributeOffset(__int32_t vertex_attrib, __int32_t vertex_attrib_flags);
int getBoneCount();
char *getBoneName(int bone_index);
KRMat4 getBoneBindPose(int bone_index);
model_format_t getModelFormat() const;
bool lineCast(const KRVector3 &v0, const KRVector3 &v1, KRHitInfo &hitinfo) const;
bool rayCast(const KRVector3 &v0, const KRVector3 &dir, KRHitInfo &hitinfo) const;
static int GetLODCoverage(const std::string &name);
private:
void getSubmeshes();
// bool rayCast(const KRVector3 &line_v0, const KRVector3 &dir, int tri_index0, int tri_index1, int tri_index2, KRHitInfo &hitinfo) const;
static bool rayCast(const KRVector3 &line_v0, const KRVector3 &dir, const KRVector3 &tri_v0, const KRVector3 &tri_v1, const KRVector3 &tri_v2, const KRVector3 &tri_n0, const KRVector3 &tri_n1, const KRVector3 &tri_n2, KRHitInfo &hitinfo);
int m_lodCoverage; // This LOD level is activated when the bounding box of the model will cover less than this percent of the screen (100 = highest detail model)
vector<KRMaterial *> m_materials;
set<KRMaterial *> m_uniqueMaterials;
bool m_hasTransparency;
KRVector3 m_minPoint, m_maxPoint;
KRDataBlock *m_pData;
typedef struct {
char szTag[16];
int32_t model_format; // 0 == Triangle list, 1 == Triangle strips, 2 == Indexed triangle list, 3 == Indexed triangle strips, rest are reserved (model_format_t enum)
int32_t vertex_attrib_flags;
int32_t vertex_count;
int32_t submesh_count;
int32_t bone_count;
float minx, miny, minz, maxx, maxy, maxz; // Axis aligned bounding box, in model's coordinate space
int32_t index_count;
int32_t index_base_count;
unsigned char reserved[444]; // Pad out to 512 bytes
} pack_header;
vector<Submesh *> m_submeshes;
int m_vertex_attribute_offset[KRENGINE_NUM_ATTRIBUTES];
int m_vertex_size;
void updateAttributeOffsets();
void clearData();
void clearBuffers();
void setName(const std::string name);
pack_material *getSubmesh(int mesh_index) const;
unsigned char *getVertexData() const;
unsigned char *getVertexData(int index) const;
__uint16_t *getIndexData() const;
__uint32_t *getIndexBaseData() const;
pack_header *getHeader() const;
pack_bone *getBone(int index);
void getIndexedRange(int index_group, int &start_index_offset, int &start_vertex_offset, int &index_count, int &vertex_count) const;
};
#endif // KRMesh_I
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