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UnitGLTFOpenGL.pas
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unit UnitGLTFOpenGL;
{$ifdef fpc}
{$mode delphi}
{$ifdef cpu386}
{$asmmode intel}
{$endif}
{$ifdef cpuamd64}
{$asmmode intel}
{$endif}
{$endif}
{$m+}
{$scopedenums on}
interface
uses SysUtils,Classes,Math,PasJSON,PasGLTF,{$ifdef fpcgl}gl,glext,{$else}dglOpenGL,{$endif}
UnitOpenGLImage,UnitOpenGLShader,UnitOpenGLShadingShader,UnitOpenGLSolidColorShader;
type EGLTFOpenGL=class(Exception);
TGLTFOpenGL=class
public
type TGetURI=function(const aURI:TPasGLTFUTF8String):TStream of object;
TBoundingBox=record
case boolean of
false:(
Min:TPasGLTF.TVector3;
Max:TPasGLTF.TVector3;
);
true:(
MinMax:array[0..1] of TPasGLTF.TVector3;
);
end;
PBoundingBox=^TBoundingBox;
TScene=record
Name:TPasGLTFUTF8String;
Nodes:TPasGLTFSizeUIntDynamicArray;
end;
PScene=^TScene;
TScenes=array of TScene;
TInstance=class
public
type TNode=record
public
type TOverwriteFlag=
(
Translation,
Rotation,
Scale,
Weights
);
TOverwriteFlags=set of TOverwriteFlag;
public
OverwriteFlags:TOverwriteFlags;
OverwriteTranslation:TPasGLTF.TVector3;
OverwriteRotation:TPasGLTF.TVector4;
OverwriteScale:TPasGLTF.TVector3;
OverwriteWeights:TPasGLTFFloatDynamicArray;
WorkWeights:TPasGLTFFloatDynamicArray;
WorkMatrix:TPasGLTF.TMatrix4x4;
end;
PNode=^TNode;
TNodes=array of TNode;
TSkin=record
Used:boolean;
end;
PSkin=^TSkin;
TSkins=array of TSkin;
private
fParent:TGLTFOpenGL;
fScene:TPasGLTFSizeInt;
fAnimation:TPasGLTFSizeInt;
fAnimationTime:TPasGLTFFloat;
fNodes:TNodes;
fSkins:TSkins;
fDynamicBoundingBox:TBoundingBox;
fWorstCaseStaticBoundingBox:TBoundingBox;
procedure SetScene(const aScene:TPasGLTFSizeInt);
procedure SetAnimation(const aAnimation:TPasGLTFSizeInt);
function GetScene:TGLTFOpenGL.PScene;
public
constructor Create(const aParent:TGLTFOpenGL); reintroduce;
destructor Destroy; override;
procedure Update;
procedure UpdateDynamicBoundingBox(const aHighQuality:boolean=false);
procedure UpdateWorstCaseStaticBoundingBox;
procedure Upload;
procedure Draw(const aModelMatrix:TPasGLTF.TMatrix4x4;
const aViewMatrix:TPasGLTF.TMatrix4x4;
const aProjectionMatrix:TPasGLTF.TMatrix4x4;
const aShadowMapMatrix:TPasGLTF.TMatrix4x4;
const aNonSkinnedNormalShadingShader:TShadingShader;
const aNonSkinnedAlphaTestShadingShader:TShadingShader;
const aSkinnedNormalShadingShader:TShadingShader;
const aSkinnedAlphaTestShadingShader:TShadingShader;
const aAlphaModes:TPasGLTF.TMaterial.TAlphaModes=[]);
procedure DrawJoints(const aModelMatrix:TPasGLTF.TMatrix4x4;
const aViewMatrix:TPasGLTF.TMatrix4x4;
const aProjectionMatrix:TPasGLTF.TMatrix4x4;
const aSolidColorShader:TSolidColorShader);
function GetJointPoints:TPasGLTF.TVector3DynamicArray;
function GetJointMatrices:TPasGLTF.TMatrix4x4DynamicArray;
property Scene:TPasGLTFSizeInt read fScene write SetScene;
property Animation:TPasGLTFSizeInt read fAnimation write SetAnimation;
property AnimationTime:TPasGLTFFloat read fAnimationTime write fAnimationTime;
property Nodes:TNodes read fNodes;
property Skins:TSkins read fSkins;
property DynamicBoundingBox:TBoundingBox read fDynamicBoundingBox;
property WorstCaseStaticBoundingBox:TBoundingBox read fWorstCaseStaticBoundingBox;
published
property Parent:TGLTFOpenGL read fParent;
end;
TAnimation=record
public
type TChannel=record
public
type TTarget=
(
Translation,
Rotation,
Scale,
Weights
);
TInterpolation=
(
Linear,
Step,
CubicSpline
);
public
Name:TPasGLTFUTF8String;
Node:TPasGLTFSizeInt;
Target:TTarget;
Interpolation:TInterpolation;
InputTimeArray:TPasGLTFFloatDynamicArray;
OutputScalarArray:TPasGLTFFloatDynamicArray;
OutputVector3Array:TPasGLTF.TVector3DynamicArray;
OutputVector4Array:TPasGLTF.TVector4DynamicArray;
Last:TPasGLTFSizeInt;
end;
PChannel=^TChannel;
TChannels=array of TChannel;
public
Channels:TChannels;
Name:TPasGLTFUTF8String;
end;
PAnimation=^TAnimation;
TAnimations=array of TAnimation;
TVertexAttributeBindingLocations=class
public
const Position=0;
Normal=1;
Tangent=2;
TexCoord0=3;
TexCoord1=4;
Color0=5;
Joints0=6;
Joints1=7;
Weights0=8;
Weights1=9;
VertexIndex=10;
end;
TVertex=packed record
Position:TPasGLTF.TVector3;
VertexIndex:TPasGLTFUInt32;
Normal:TPasGLTF.TVector3;
Tangent:TPasGLTF.TVector4;
TexCoord0:TPasGLTF.TVector2;
TexCoord1:TPasGLTF.TVector2;
Color0:TPasGLTF.TVector4;
Joints0:TPasGLTF.TUInt32Vector4;
Joints1:TPasGLTF.TUInt32Vector4;
Weights0:TPasGLTF.TVector4;
Weights1:TPasGLTF.TVector4;
end;
PVertex=^TVertex;
TVertices=array of TVertex;
TMaterial=record
public
type TTextureTransform=record
Active:boolean;
Offset:TPasGLTF.TVector2;
Rotation:TPasGLTFFloat;
Scale:TPasGLTF.TVector2;
end;
PTextureTransform=^TTextureTransform;
TTexture=record
Index:TPasGLTFSizeInt;
TexCoord:TPasGLTFSizeInt;
TextureTransform:TTextureTransform;
end;
PTexture=^TTexture;
TPBRMetallicRoughness=record
BaseColorFactor:TPasGLTF.TVector4;
BaseColorTexture:TTexture;
RoughnessFactor:TPasGLTFFloat;
MetallicFactor:TPasGLTFFloat;
MetallicRoughnessTexture:TTexture;
end;
TPBRSpecularGlossiness=record
DiffuseFactor:TPasGLTF.TVector4;
DiffuseTexture:TTexture;
GlossinessFactor:TPasGLTFFloat;
SpecularFactor:TPasGLTF.TVector3;
SpecularGlossinessTexture:TTexture;
end;
PPBRSpecularGlossiness=^TPBRSpecularGlossiness;
TPBRSheen=record
Active:boolean;
IntensityFactor:TPasGLTFFloat;
ColorFactor:TPasGLTF.TVector3;
ColorIntensityTexture:TTexture;
end;
PPBRSheen=^TPBRSheen;
TUniformBufferObjectData=packed record
BaseColorFactor:TPasGLTF.TVector4;
SpecularFactor:TPasGLTF.TVector4; // actually TVector3, but for easier and more convenient alignment reasons a TVector4
EmissiveFactor:TPasGLTF.TVector4; // actually TVector3, but for easier and more convenient alignment reasons a TVector4
MetallicRoughnessNormalScaleOcclusionStrengthFactor:TPasGLTF.TVector4;
SheenColorFactorSheenIntensityFactor:TPasGLTF.TVector4;
ClearcoatFactorClearcoatRoughnessFactor:TPasGLTF.TVector4;
// uvec4 AlphaCutOffFlags begin
AlphaCutOff:TPasGLTFFloat; // for with uintBitsToFloat on GLSL code side
Flags:TPasGLTFUInt32;
Textures0:TPasGLTFUInt32;
Textures1:TPasGLTFUInt32;
// uvec4 uAlphaCutOffFlags end
TextureTransforms:array[0..15] of TPasGLTF.TMatrix4x4;
end;
PUniformBufferObjectData=^TUniformBufferObjectData;
TShadingModel=
(
PBRMetallicRoughness,
PBRSpecularGlossiness,
Unlit
);
public
Name:TPasGLTFUTF8String;
ShadingModel:TShadingModel;
AlphaCutOff:TPasGLTFFloat;
AlphaMode:TPasGLTF.TMaterial.TAlphaMode;
DoubleSided:boolean;
NormalTexture:TTexture;
NormalTextureScale:TPasGLTFFloat;
OcclusionTexture:TTexture;
OcclusionTextureStrength:TPasGLTFFloat;
EmissiveFactor:TPasGLTF.TVector3;
EmissiveTexture:TTexture;
PBRMetallicRoughness:TPBRMetallicRoughness;
PBRSpecularGlossiness:TPBRSpecularGlossiness;
PBRSheen:TPBRSheen;
UniformBufferObjectData:TUniformBufferObjectData;
UniformBufferObjectIndex:TPasGLTFSizeInt;
UniformBufferObjectOffset:TPasGLTFSizeInt;
end;
PMaterial=^TMaterial;
TMaterials=array of TMaterial;
TMesh=record
public
type TPrimitive=record
public
type TTarget=record
public
type TTargetVertex=record
Position:TPasGLTF.TVector3;
Normal:TPasGLTF.TVector3;
Tangent:TPasGLTF.TVector3;
end;
PTargetVertex=^TTargetVertex;
TTargetVertices=array of TTargetVertex;
public
Vertices:TTargetVertices;
end;
PTarget=^TTarget;
TTargets=array of TTarget;
public
PrimitiveMode:glEnum;
Material:TPasGLTFSizeInt;
Vertices:TVertices;
Indices:TPasGLTFUInt32DynamicArray;
Targets:TTargets;
StartBufferVertexOffset:TPasGLTFSizeUInt;
StartBufferIndexOffset:TPasGLTFSizeUInt;
CountVertices:TPasGLTFSizeUInt;
CountIndices:TPasGLTFSizeUInt;
MorphTargetVertexShaderStorageBufferObjectIndex:TPasGLTFSizeInt;
MorphTargetVertexShaderStorageBufferObjectOffset:TPasGLTFSizeUInt;
MorphTargetVertexShaderStorageBufferObjectByteOffset:TPasGLTFSizeUInt;
MorphTargetVertexShaderStorageBufferObjectByteSize:TPasGLTFSizeUInt;
end;
PPrimitive=^TPrimitive;
TPrimitives=array of TPrimitive;
public
Name:TPasGLTFUTF8String;
Primitives:TPrimitives;
BoundingBox:TBoundingBox;
Weights:TPasGLTFFloatDynamicArray;
// JointWeights:TPasGLTFFloatDynamicArray;
end;
PMesh=^TMesh;
TMeshes=array of TMesh;
TSkin=record
Name:TPasGLTFUTF8String;
Skeleton:TPasGLTFSizeInt;
InverseBindMatrices:TPasGLTF.TMatrix4x4DynamicArray;
Matrices:TPasGLTF.TMatrix4x4DynamicArray;
Joints:TPasGLTFSizeIntDynamicArray;
SkinShaderStorageBufferObjectIndex:TPasGLTFSizeInt;
SkinShaderStorageBufferObjectOffset:TPasGLTFSizeUInt;
SkinShaderStorageBufferObjectByteOffset:TPasGLTFSizeUInt;
SkinShaderStorageBufferObjectByteSize:TPasGLTFSizeUInt;
end;
PSkin=^TSkin;
TSkins=array of TSkin;
TNode=record
public
type TOverwriteFlag=
(
Translation,
Rotation,
Scale,
Weights
);
TOverwriteFlags=set of TOverwriteFlag;
TMeshPrimitiveMetaData=record
ShaderStorageBufferObjectIndex:TPasGLTFSizeInt;
ShaderStorageBufferObjectOffset:TPasGLTFSizeUInt;
ShaderStorageBufferObjectByteOffset:TPasGLTFSizeUInt;
ShaderStorageBufferObjectByteSize:TPasGLTFSizeUInt;
end;
PMeshPrimitiveMetaData=^TMeshPrimitiveMetaData;
TMeshPrimitiveMetaDataArray=array of TMeshPrimitiveMetaData;
public
Name:TPasGLTFUTF8String;
Children:TPasGLTFSizeUIntDynamicArray;
Weights:TPasGLTFFloatDynamicArray;
Mesh:TPasGLTFSizeInt;
Camera:TPasGLTFSizeInt;
Skin:TPasGLTFSizeInt;
Joint:TPasGLTFSizeInt;
Light:TPasGLTFSizeInt;
Matrix:TPasGLTF.TMatrix4x4;
Translation:TPasGLTF.TVector3;
Rotation:TPasGLTF.TVector4;
Scale:TPasGLTF.TVector3;
MeshPrimitiveMetaDataArray:TMeshPrimitiveMetaDataArray;
end;
PNode=^TNode;
TNodes=array of TNode;
TImage=record
Name:TPasGLTFUTF8String;
URI:TPasGLTFUTF8String;
MIMEType:TPasGLTFUTF8String;
Data:TBytes;
end;
PImage=^TImage;
TImages=array of TImage;
TSampler=record
Name:TPasGLTFUTF8String;
MagFilter:TPasGLTF.TSampler.TMagFilter;
MinFilter:TPasGLTF.TSampler.TMinFilter;
WrapS:TPasGLTF.TSampler.TWrappingMode;
WrapT:TPasGLTF.TSampler.TWrappingMode;
end;
PSampler=^TSampler;
TSamplers=array of TSampler;
TTexture=record
Name:TPasGLTFUTF8String;
Image:TPasGLTFSizeInt;
Sampler:TPasGLTFSizeInt;
Handle:glUInt;
end;
PTexture=^TTexture;
TTextures=array of TTexture;
TJoint=record
public
type TChildren=array of TPasGLTFSizeInt;
public
Parent:TPasGLTFSizeInt;
Node:TPasGLTFSizeInt;
Children:TChildren;
CountChildren:TPasGLTFSizeInt;
end;
PJoint=^TJoint;
TJoints=array of TJoint;
TJointVertices=array of TPasGLTF.TVector3;
TSkinShaderStorageBufferObject=record
Count:TPasGLTFSizeInt;
Size:TPasGLTFSizeInt;
ShaderStorageBufferObjectHandle:glUInt;
Skins:TPasGLTFSizeIntDynamicArray;
CountSkins:TPasGLTFSizeInt;
end;
PSkinShaderStorageBufferObject=^TSkinShaderStorageBufferObject;
TSkinShaderStorageBufferObjects=array of TSkinShaderStorageBufferObject;
TMorphTargetVertex=packed record
Position:TPasGLTF.TVector4;
Normal:TPasGLTF.TVector4;
Tangent:TPasGLTF.TVector4;
Reversed:TPasGLTF.TVector4; // just for alignment of 64 bytes for now
end;
PMorphTargetVertex=^TMorphTargetVertex;
TMorphTargetVertexDynamicArray=array of TMorphTargetVertex;
TMorphTargetVertexShaderStorageBufferObject=record
Count:TPasGLTFSizeInt;
Size:TPasGLTFSizeInt;
ShaderStorageBufferObjectHandle:glUInt;
Data:TBytes;
end;
PMorphTargetVertexShaderStorageBufferObject=^TMorphTargetVertexShaderStorageBufferObject;
TMorphTargetVertexShaderStorageBufferObjects=array of TMorphTargetVertexShaderStorageBufferObject;
TFrameGlobalsUniformBufferObjectData=packed record
InverseViewMatrix:TPasGLTF.TMatrix4x4;
ModelMatrix:TPasGLTF.TMatrix4x4;
ViewProjectionMatrix:TPasGLTF.TMatrix4x4;
ShadowMapMatrix:TPasGLTF.TMatrix4x4;
NormalMatrix:TPasGLTF.TMatrix4x4;
end;
PFrameGlobalsUniformBufferObjectData=^TFrameGlobalsUniformBufferObjectData;
TMaterialUniformBufferObject=record
UniformBufferObjectHandle:glUInt;
Size:TPasGLTFSizeInt;
Materials:TPasGLTFSizeIntDynamicArray;
Count:TPasGLTFSizeInt;
end;
PMaterialUniformBufferObject=^TMaterialUniformBufferObject;
TMaterialUniformBufferObjects=array of TMaterialUniformBufferObject;
TNodeMeshPrimitiveShaderStorageBufferObjectDataItem=packed record
Matrix:TPasGLTF.TMatrix4x4;
// uvec4 MetaData; begin
Reversed:TPasGLTFUInt32;
JointOffset:TPasGLTFUInt32;
CountVertices:TPasGLTFUInt32;
CountMorphTargets:TPasGLTFUInt32;
// uvec4 MetaData; end
MorphTargetWeights:array[0..0] of TPasGLTFFloat;
end;
PNodeMeshPrimitiveShaderStorageBufferObjectDataItem=^TNodeMeshPrimitiveShaderStorageBufferObjectDataItem;
TNodeMeshPrimitiveShaderStorageBufferObjectDataItems=array of TNodeMeshPrimitiveShaderStorageBufferObjectDataItem;
TNodeMeshPrimitiveShaderStorageBufferObjectItem=record
Node:TPasGLTFSizeInt;
Mesh:TPasGLTFSizeInt;
Primitive:TPasGLTFSizeInt;
end;
PNodeMeshPrimitiveShaderStorageBufferObjectItem=^TNodeMeshPrimitiveShaderStorageBufferObjectItem;
TNodeMeshPrimitiveShaderStorageBufferObjectItems=array of TNodeMeshPrimitiveShaderStorageBufferObjectItem;
TNodeMeshPrimitiveShaderStorageBufferObject=record
ShaderStorageBufferObjectHandle:glUInt;
Size:TPasGLTFSizeInt;
Items:TNodeMeshPrimitiveShaderStorageBufferObjectItems;
Count:TPasGLTFSizeInt;
end;
PNodeMeshPrimitiveShaderStorageBufferObject=^TNodeMeshPrimitiveShaderStorageBufferObject;
TNodeMeshPrimitiveShaderStorageBufferObjects=array of TNodeMeshPrimitiveShaderStorageBufferObject;
TLightDataType=class
public
const None=0;
Directional=1;
Point=2;
Spot=3;
end;
TLightShaderStorageBufferObjectDataItem=packed record
// uvec4 MetaData; begin
Type_:TPasGLTFUInt32;
Reserved:TPasGLTFUInt32;
LightAngleScale:TPasGLTFFloat;
LightAngleOffset:TPasGLTFFloat;
// uvec4 MetaData; end
ColorIntensity:TPasGLTF.TVector4; // XYZ = Color RGB, W = Intensity
PositionRange:TPasGLTF.TVector4; // XYZ = Position, W = Range
Direction:TPasGLTF.TVector4; // XYZ = Direction, W = Unused
end;
PLightShaderStorageBufferObjectDataItem=^TLightShaderStorageBufferObjectDataItem;
TLightShaderStorageBufferObjectData=packed record
// uvec4 MetaData; begin
Count:TPasGLTFUInt32;
Reserved:array[0..2] of TPasGLTFUInt32;
// uvec4 MetaData; end
Lights:array[0..0] of TLightShaderStorageBufferObjectDataItem;
end;
PLightShaderStorageBufferObjectData=^TLightShaderStorageBufferObjectData;
TLightShaderStorageBufferObject=record
ShaderStorageBufferObjectHandle:glUInt;
Size:TPasGLTFSizeInt;
Data:PLightShaderStorageBufferObjectData;
end;
TLight=record
public
Type_:TPasGLTFUInt32;
Node:TPasGLTFInt32;
Intensity:TPasGLTFFloat;
Range:TPasGLTFFloat;
InnerConeAngle:TPasGLTFFloat;
OuterConeAngle:TPasGLTFFloat;
Color:TPasGLTF.TVector3;
end;
PLight=^TLight;
TLights=array of TLight;
const EmptyBoundingBox:TBoundingBox=(Min:(Infinity,Infinity,Infinity);Max:(NegInfinity,NegInfinity,NegInfinity));
private
fReady:boolean;
fUploaded:boolean;
fLights:TLights;
fAnimations:TAnimations;
fMaterials:TMaterials;
fMeshes:TMeshes;
fSkins:TSkins;
fNodes:TNodes;
fImages:TImages;
fSamplers:TSamplers;
fTextures:TTextures;
fJoints:TJoints;
fScenes:TScenes;
fScene:TPasGLTFSizeInt;
fJointVertices:TJointVertices;
fSkinShaderStorageBufferObjects:TSkinShaderStorageBufferObjects;
fMorphTargetVertexShaderStorageBufferObjects:TMorphTargetVertexShaderStorageBufferObjects;
fNodeMeshPrimitiveShaderStorageBufferObjects:TNodeMeshPrimitiveShaderStorageBufferObjects;
fMaterialUniformBufferObjects:TMaterialUniformBufferObjects;
fLightShaderStorageBufferObject:TLightShaderStorageBufferObject;
fVertexBufferObjectHandle:glInt;
fIndexBufferObjectHandle:glInt;
fVertexArrayHandle:glInt;
fJointVertexBufferObjectHandle:glInt;
fJointVertexArrayHandle:glInt;
fStaticBoundingBox:TBoundingBox;
fFrameGlobalsUniformBufferObjectHandle:glUInt;
fShaderStorageBufferOffsetAlignment:glInt;
fMaximumShaderStorageBufferBlockSize:glInt;
fUniformBufferOffsetAlignment:glInt;
fMaximumUniformBufferBlockSize:glInt;
fRootPath:String;
fGetURI:TGetURI;
function DefaultGetURI(const aURI:TPasGLTFUTF8String):TStream;
public
constructor Create; reintroduce;
destructor Destroy; override;
procedure Clear;
procedure LoadFromDocument(const aDocument:TPasGLTF.TDocument);
procedure LoadFromStream(const aStream:TStream);
procedure LoadFromFile(const aFileName:String);
procedure Upload;
procedure Unload;
function GetAnimationBeginTime(const aAnimation:TPasGLTFSizeInt):TPasGLTFFloat;
function GetAnimationEndTime(const aAnimation:TPasGLTFSizeInt):TPasGLTFFloat;
function AcquireInstance:TGLTFOpenGL.TInstance;
public
property StaticBoundingBox:TBoundingBox read fStaticBoundingBox;
property Lights:TLights read fLights;
property Animations:TAnimations read fAnimations;
property Materials:TMaterials read fMaterials;
property Meshes:TMeshes read fMeshes;
property Skins:TSkins read fSkins;
property Nodes:TNodes read fNodes;
property Images:TImages read fImages;
property Samplers:TSamplers read fSamplers;
property Textures:TTextures read fTextures;
property Joints:TJoints read fJoints;
property Scenes:TScenes read fScenes;
property Scene:TPasGLTFSizeInt read fScene;
published
property GetURI:TGetURI read fGetURI write fGetURI;
property RootPath:String read fRootPath write fRootPath;
end;
implementation
const Epsilon=1e-8;
{$ifdef fpcgl}
GL_TEXTURE_MAX_ANISOTROPY=$84fe;
GL_MAX_TEXTURE_MAX_ANISOTROPY=$84ff;
GL_SHADER_STORAGE_BUFFER=$90d2;
GL_MAX_SHADER_STORAGE_BLOCK_SIZE=$90de;
GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT=$90df;
{$endif}
type TVector2=TPasGLTF.TVector2;
PVector2=^TVector2;
TVector3=TPasGLTF.TVector3;
PVector3=^TVector3;
TVector4=TPasGLTF.TVector4;
PVector4=^TVector4;
TMatrix=TPasGLTF.TMatrix4x4;
PMatrix=^TMatrix;
const EmptyMaterialUniformBufferObjectData:TGLTFOpenGL.TMaterial.TUniformBufferObjectData=
(
BaseColorFactor:(1.0,1.0,1.0,1.0);
SpecularFactor:(1.0,1.0,1.0,0.0);
EmissiveFactor:(0.0,0.0,0.0,0.0);
MetallicRoughnessNormalScaleOcclusionStrengthFactor:(1.0,1.0,1.0,1.0);
SheenColorFactorSheenIntensityFactor:(1.0,1.0,1.0,1.0);
ClearcoatFactorClearcoatRoughnessFactor:(1.0,1.0,1.0,1.0);
AlphaCutOff:1.0;
Flags:0;
Textures0:$ffffffff;
Textures1:$ffffffff;
TextureTransforms:(
(1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0),
(1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0),
(1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0),
(1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0),
(1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0),
(1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0),
(1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0),
(1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0),
(1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0),
(1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0),
(1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0),
(1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0),
(1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0),
(1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0),
(1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0),
(1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0,0.0,0.0,0.0,0.0,1.0)
);
);
function CompareFloats(const a,b:TPasGLTFFloat):TPasGLTFInt32;
begin
if a<b then begin
result:=-1;
end else if a>b then begin
result:=1;
end else begin
result:=0;
end;
end;
function Vector2Add(const a,b:TVector2):TVector2;
begin
result[0]:=a[0]+b[0];
result[1]:=a[1]+b[1];
end;
function Vector2Sub(const a,b:TVector2):TVector2;
begin
result[0]:=a[0]-b[0];
result[1]:=a[1]-b[1];
end;
function Vector3(const aX,aY,aZ:TPasGLTFFloat):TVector3;
begin
result[0]:=aX;
result[1]:=aY;
result[2]:=aZ;
end;
function Vector3Add(const a,b:TVector3):TVector3;
begin
result[0]:=a[0]+b[0];
result[1]:=a[1]+b[1];
result[2]:=a[2]+b[2];
end;
function Vector3Sub(const a,b:TVector3):TVector3;
begin
result[0]:=a[0]-b[0];
result[1]:=a[1]-b[1];
result[2]:=a[2]-b[2];
end;
function Vector3Cross(const a,b:TVector3):TVector3;
begin
result[0]:=(a[1]*b[2])-(a[2]*b[1]);
result[1]:=(a[2]*b[0])-(a[0]*b[2]);
result[2]:=(a[0]*b[1])-(a[1]*b[0]);
end;
function Vector3Dot(const a,b:TVector3):TPasGLTFFloat;
begin
result:=(a[0]*b[0])+(a[1]*b[1])+(a[2]*b[2]);
end;
function Vector3Normalize(const aVector:TVector3):TVector3;
var l:TPasGLTFFloat;
begin
l:=sqrt(sqr(aVector[0])+sqr(aVector[1])+sqr(aVector[2]));
if abs(l)>Epsilon then begin
result[0]:=aVector[0]/l;
result[1]:=aVector[1]/l;
result[2]:=aVector[2]/l;
end else begin
result[0]:=0.0;
result[1]:=0.0;
result[2]:=0.0;
end;
end;
function Vector3Neg(const aVector:TVector3):TVector3;
begin
result[0]:=-aVector[0];
result[1]:=-aVector[1];
result[2]:=-aVector[2];
end;
function Vector3Scale(const aVector:TVector3;const aFactor:TPasGLTFFloat):TVector3;
begin
result[0]:=aVector[0]*aFactor;
result[1]:=aVector[1]*aFactor;
result[2]:=aVector[2]*aFactor;
end;
function Vector3MatrixMul(const m:TPasGLTF.TMatrix4x4;const v:TVector3):TVector3;
begin
result[0]:=(m[0]*v[0])+(m[4]*v[1])+(m[8]*v[2])+m[12];
result[1]:=(m[1]*v[0])+(m[5]*v[1])+(m[9]*v[2])+m[13];
result[2]:=(m[2]*v[0])+(m[6]*v[1])+(m[10]*v[2])+m[14];
end;
function Vector4Dot(const a,b:TVector4):TPasGLTFFloat;
begin
result:=(a[0]*b[0])+(a[1]*b[1])+(a[2]*b[2])+(a[3]*b[3]);
end;
function Vector4Neg(const aVector:TVector4):TVector4;
begin
result[0]:=-aVector[0];
result[1]:=-aVector[1];
result[2]:=-aVector[2];
result[3]:=-aVector[3];
end;
function Vector4Normalize(const aVector:TVector4):TVector4;
var l:TPasGLTFFloat;
begin
l:=sqrt(sqr(aVector[0])+sqr(aVector[1])+sqr(aVector[2])+sqr(aVector[3]));
if abs(l)>Epsilon then begin
result[0]:=aVector[0]/l;
result[1]:=aVector[1]/l;
result[2]:=aVector[2]/l;
result[3]:=aVector[3]/l;
end else begin
result[0]:=0.0;
result[1]:=0.0;
result[2]:=0.0;
result[3]:=0.0;
end;
end;
function QuaternionMul(const q1,q2:TVector4):TVector4;
begin
result[0]:=((q1[3]*q2[0])+(q1[0]*q2[3])+(q1[1]*q2[2]))-(q1[2]*q2[1]);
result[1]:=((q1[3]*q2[1])+(q1[1]*q2[3])+(q1[2]*q2[0]))-(q1[0]*q2[2]);
result[2]:=((q1[3]*q2[2])+(q1[2]*q2[3])+(q1[0]*q2[1]))-(q1[1]*q2[0]);
result[3]:=(q1[3]*q2[3])-((q1[0]*q2[0])+(q1[1]*q2[1])+(q1[2]*q2[2]));
end;
function QuaternionConjugate(const AQuaternion:TVector4):TVector4;
begin
result[0]:=-AQuaternion[0];
result[1]:=-AQuaternion[1];
result[2]:=-AQuaternion[2];
result[3]:=AQuaternion[3];
end;
function QuaternionInverse(const AQuaternion:TVector4):TVector4;var Normal:TPasGLTFFloat;
begin
Normal:=sqrt(sqr(AQuaternion[0])+sqr(AQuaternion[1])+sqr(AQuaternion[2])+sqr(AQuaternion[3]));
if abs(Normal)>1e-18 then begin
Normal:=1.0/Normal;
end;
result[0]:=-(AQuaternion[0]*Normal);
result[1]:=-(AQuaternion[1]*Normal);
result[2]:=-(AQuaternion[2]*Normal);
result[3]:=(AQuaternion[3]*Normal);
end;
function QuaternionAdd(const q1,q2:TVector4):TVector4;
begin
result[0]:=q1[0]+q2[0];
result[1]:=q1[1]+q2[1];
result[2]:=q1[2]+q2[2];
result[3]:=q1[3]+q2[3];
end;
function QuaternionSub(const q1,q2:TVector4):TVector4;
begin
result[0]:=q1[0]-q2[0];
result[1]:=q1[1]-q2[1];
result[2]:=q1[2]-q2[2];
result[3]:=q1[3]-q2[3];
end;
function QuaternionScalarMul(const q:TVector4;const s:TPasGLTFFloat):TVector4;
begin
result[0]:=q[0]*s;
result[1]:=q[1]*s;
result[2]:=q[2]*s;
result[3]:=q[3]*s;
end;
function QuaternionSlerp(const q1,q2:TVector4;const t:TPasGLTFFloat):TVector4;
const EPSILON=1e-12;
var Omega,co,so,s0,s1,s2:TPasGLTFFloat;
begin
co:=(q1[0]*q2[0])+(q1[1]*q2[1])+(q1[2]*q2[2])+(q1[3]*q2[3]);
if co<0.0 then begin
co:=-co;
s2:=-1.0;
end else begin
s2:=1.0;
end;
if (1.0-co)>EPSILON then begin
Omega:=ArcCos(co);
so:=sin(Omega);
s0:=sin((1.0-t)*Omega)/so;
s1:=sin(t*Omega)/so;
end else begin
s0:=1.0-t;
s1:=t;
end;
result[0]:=(s0*q1[0])+(s1*(s2*q2[0]));
result[1]:=(s0*q1[1])+(s1*(s2*q2[1]));
result[2]:=(s0*q1[2])+(s1*(s2*q2[2]));
result[3]:=(s0*q1[3])+(s1*(s2*q2[3]));
end;
function QuaternionUnflippedSlerp(const q1,q2:TVector4;const t:TPasGLTFFloat):TVector4; {$ifdef caninline}inline;{$endif}
var Omega,co,so,s0,s1:TPasGLTFFloat;
begin
co:=(q1[0]*q2[0])+(q1[1]*q2[1])+(q1[2]*q2[2])+(q1[3]*q2[3]);
if (1.0-co)>1e-8 then begin
Omega:=ArcCos(co);
so:=sin(Omega);
s0:=sin((1.0-t)*Omega)/so;
s1:=sin(t*Omega)/so;
end else begin
s0:=1.0-t;
s1:=t;
end;
result[0]:=(s0*q1[0])+(s1*q2[0]);
result[1]:=(s0*q1[1])+(s1*q2[1]);
result[2]:=(s0*q1[2])+(s1*q2[2]);
result[3]:=(s0*q1[3])+(s1*q2[3]);
end;
function QuaternionLog(const AQuaternion:TVector4):TVector4;
var Theta,SinTheta,Coefficent:TPasGLTFFloat;
begin
result[0]:=AQuaternion[0];
result[1]:=AQuaternion[1];
result[2]:=AQuaternion[2];
result[3]:=0.0;
if abs(AQuaternion[3])<1.0 then begin
Theta:=ArcCos(AQuaternion[3]);
SinTheta:=sin(Theta);
if abs(SinTheta)>1e-6 then begin
Coefficent:=Theta/SinTheta;
result[0]:=result[0]*Coefficent;
result[1]:=result[1]*Coefficent;
result[2]:=result[2]*Coefficent;
end;
end;
end;
function QuaternionExp(const AQuaternion:TVector4):TVector4;
var Angle,Sinus,Coefficent:TPasGLTFFloat;
begin
Angle:=sqrt(sqr(AQuaternion[0])+sqr(AQuaternion[1])+sqr(AQuaternion[2]));
Sinus:=sin(Angle);
result[3]:=cos(Angle);
if abs(Sinus)>1e-6 then begin
Coefficent:=Sinus/Angle;
result[0]:=AQuaternion[0]*Coefficent;
result[1]:=AQuaternion[1]*Coefficent;
result[2]:=AQuaternion[2]*Coefficent;
end else begin
result[0]:=AQuaternion[0];
result[1]:=AQuaternion[1];
result[2]:=AQuaternion[2];
end;
end;
function QuaternionKochanekBartelsSplineInterpolate(const t,t0,t1,t2,t3:TPasGLTFFloat;q0,q1,q2,q3:TVector4;const Tension1,Continuity1,Bias1,Tension2,Continuity2,Bias2:TPasGLTFFloat):TVector4;
var qLog10,qLog21,qLog32,qTOut,qTIn:TVector4;
AdjustMulOneMinusTensionMulHalf:TPasGLTFFloat;
begin
if Vector4Dot(q0,q1)<0.0 then begin
q1:=Vector4Neg(q1);
end;
if Vector4Dot(q1,q2)<0.0 then begin
q2:=Vector4Neg(q2);
end;
if Vector4Dot(q2,q3)<0.0 then begin
q3:=Vector4Neg(q3);
end;
qLog10:=QuaternionLog(QuaternionMul(QuaternionConjugate(q0),q1));
qLog21:=QuaternionLog(QuaternionMul(QuaternionConjugate(q1),q2));
qLog32:=QuaternionLog(QuaternionMul(QuaternionConjugate(q2),q3));
AdjustMulOneMinusTensionMulHalf:=((((t2-t1)/(t2-t0)){*2.0})*(1.0-Tension1)){*0.5};
qTOut:=QuaternionAdd(QuaternionScalarMul(qLog10,AdjustMulOneMinusTensionMulHalf*(1.0+Continuity1)*(1.0+Bias1)),
QuaternionScalarMul(qLog21,AdjustMulOneMinusTensionMulHalf*(1.0-Continuity1)*(1.0-Bias1)));
AdjustMulOneMinusTensionMulHalf:=((((t2-t1)/(t3-t1)){*2.0})*(1.0-Tension2)){*0.5};
qTIn:=QuaternionAdd(QuaternionScalarMul(qLog21,AdjustMulOneMinusTensionMulHalf*(1.0-Continuity2)*(1.0+Bias2)),
QuaternionScalarMul(qLog32,AdjustMulOneMinusTensionMulHalf*(1.0+Continuity2)*(1.0-Bias2)));
result:=QuaternionUnflippedSlerp(QuaternionUnflippedSlerp(q1,q2,t),
QuaternionUnflippedSlerp(QuaternionMul(q1,QuaternionExp(QuaternionScalarMul(QuaternionSub(qTOut,qLog21),0.5))),
QuaternionMul(q2,QuaternionExp(QuaternionScalarMul(QuaternionSub(qLog21,qTIn),0.5))),
t),
2.0*(t*(1.0-t)));
end;
function MatrixFrom2DRotation(const aRotation:TPasGLTFFloat):TMatrix;
var Sinus,Cosinus:TPasGLTFFloat;
begin
Sinus:=0.0;
Cosinus:=0.0;
SinCos(aRotation,Sinus,Cosinus);
result[0]:=Cosinus;
result[1]:=Sinus;
result[2]:=0.0;
result[3]:=0.0;
result[4]:=-Sinus;
result[5]:=Cosinus;
result[6]:=0.0;
result[7]:=0.0;
result[8]:=0.0;
result[9]:=0.0;
result[10]:=1.0;
result[11]:=0.0;
result[12]:=0.0;
result[13]:=0.0;
result[14]:=0.0;
result[15]:=1.0;
end;
function MatrixFromRotation(const aRotation:TVector4):TMatrix;
var qx2,qy2,qz2,qxqx2,qxqy2,qxqz2,qxqw2,qyqy2,qyqz2,qyqw2,qzqz2,qzqw2,l:TPasGLTFFloat;
Rotation:TPasGLTF.TVector4;
begin
l:=sqrt(sqr(aRotation[0])+sqr(aRotation[1])+sqr(aRotation[2])+sqr(aRotation[3]));
Rotation[0]:=aRotation[0]/l;
Rotation[1]:=aRotation[1]/l;
Rotation[2]:=aRotation[2]/l;
Rotation[3]:=aRotation[3]/l;
qx2:=Rotation[0]+Rotation[0];
qy2:=Rotation[1]+Rotation[1];
qz2:=Rotation[2]+Rotation[2];
qxqx2:=Rotation[0]*qx2;
qxqy2:=Rotation[0]*qy2;
qxqz2:=Rotation[0]*qz2;
qxqw2:=Rotation[3]*qx2;
qyqy2:=Rotation[1]*qy2;
qyqz2:=Rotation[1]*qz2;
qyqw2:=Rotation[3]*qy2;
qzqz2:=Rotation[2]*qz2;
qzqw2:=Rotation[3]*qz2;
result[0]:=1.0-(qyqy2+qzqz2);
result[1]:=qxqy2+qzqw2;
result[2]:=qxqz2-qyqw2;
result[3]:=0.0;
result[4]:=qxqy2-qzqw2;
result[5]:=1.0-(qxqx2+qzqz2);
result[6]:=qyqz2+qxqw2;
result[7]:=0.0;
result[8]:=qxqz2+qyqw2;
result[9]:=qyqz2-qxqw2;
result[10]:=1.0-(qxqx2+qyqy2);
result[11]:=0.0;
result[12]:=0.0;
result[13]:=0.0;
result[14]:=0.0;
result[15]:=1.0;
end;
function MatrixFromScale(const aScale:TVector3):TMatrix;
begin
result[0]:=aScale[0];
result[1]:=0.0;
result[2]:=0.0;
result[3]:=0.0;
result[4]:=0.0;
result[5]:=aScale[1];
result[6]:=0.0;
result[7]:=0.0;
result[8]:=0.0;
result[9]:=0.0;
result[10]:=aScale[2];
result[11]:=0.0;
result[12]:=0.0;
result[13]:=0.0;
result[14]:=0.0;
result[15]:=1.0;
end;
function MatrixFromTranslation(const aTranslation:TVector3):TMatrix;
begin
result[0]:=1.0;
result[1]:=0.0;
result[2]:=0.0;
result[3]:=0.0;