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100% working time synchronization and skeletal animation interpolation

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This commit is contained in:
Fatbag 2012-02-19 22:54:20 -06:00
parent ad9054fbd7
commit 3aea20fa94
4 changed files with 117 additions and 79 deletions
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2
Libraries/libvitaboy/CMakeLists.txt
View file

@ -34,4 +34,4 @@ add_executable(vbparse vbparse.cpp)
target_link_libraries(vbparse libvitaboy_static)
add_executable(Renderer Renderer.cpp)
target_link_libraries(Renderer libvitaboy_shared "${CMAKE_SOURCE_DIR}/Libraries/libvitaboy/libSOIL.a" opengl32 glu32)
target_link_libraries(Renderer libvitaboy_shared "${CMAKE_SOURCE_DIR}/Libraries/libvitaboy/libSOIL.a" opengl32 glu32 winmm)

189
Libraries/libvitaboy/Renderer.cpp
View file

@ -44,6 +44,7 @@
*/
#include <windows.h> // Header File For Windows
#include <math.h>
#include <gl\gl.h> // Header File For The OpenGL32 Library
#include <gl\glu.h> // Header File For The GLu32 Library
#include <gl\glext.h>
@ -59,8 +60,6 @@ bool keys[256] = {0}; // Array Used For The Keyboard Routine
bool active=TRUE; // Window Active Flag Set To TRUE By Default
bool fullscreen=TRUE; // Fullscreen Flag Set To Fullscreen Mode By Default
bool press = false;
float zoom = -10;
struct CharacterPlacement_t {
Vertex_t Translation;
@ -83,10 +82,13 @@ unsigned Mesh_UseTexture[] = { Texture_Body, Texture_Head, Texture_Hand, Texture
const char* MeshActivate[] = {NULL, "HEAD", "L_HAND", "R_HAND"};
Animation_t Animation;
float AnimationTime = 0;
bool ShowMesh = true;
bool ShowSkeleton = true;
LARGE_INTEGER ClockFreq, PreviousTime;
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM); // Declaration For WndProc
int LoadGLTextures() // Load Bitmaps And Convert To Textures
@ -242,31 +244,57 @@ void DrawMeshes(){
glDisable(GL_TEXTURE_2D);
}
void AdvanceFrame(Skeleton_t& Skeleton, Animation_t& Animation){
static unsigned Frame = 0;
void AdvanceFrame(Skeleton_t& Skeleton, Animation_t& Animation, float TimeDelta){
float Duration = (float)Animation.Motions[0].FrameCount/30;
AnimationTime += TimeDelta;
while(AnimationTime >= Duration) AnimationTime -= Duration;
if(AnimationTime<0) AnimationTime = 0;
for(unsigned i=0; i<Animation.MotionsCount; i++){
unsigned BoneIndex = FindBone(Skeleton, Animation.Motions[i].BoneName, Skeleton.BoneCount);
if(BoneIndex != (unsigned)-1){
Bone_t& Bone = Skeleton.Bones[BoneIndex];
if(BoneIndex == (unsigned)-1) continue;
Bone_t& Bone = Skeleton.Bones[BoneIndex];
unsigned Frame = AnimationTime*30;
float FractionShown = AnimationTime*30 - Frame;
unsigned NextFrame = (Frame+1 != Animation.Motions[0].FrameCount) ? Frame+1 : 0;
if(Animation.Motions[i].HasTranslation){
Translation_t& Translation = Animation.Motions[i].Translations[Frame];
Translation_t& NextTranslation = Animation.Motions[i].Translations[NextFrame];
Bone.Translation.x = (1-FractionShown)*Translation.x + FractionShown*NextTranslation.x;
Bone.Translation.y = (1-FractionShown)*Translation.y + FractionShown*NextTranslation.y;
Bone.Translation.z = (1-FractionShown)*Translation.z + FractionShown*NextTranslation.z;
}
if(Animation.Motions[i].HasRotation){
Rotation_t& Rotation = Animation.Motions[i].Rotations[Frame];
Rotation_t& NextRotation = Animation.Motions[i].Rotations[NextFrame];
if(Animation.Motions[i].HasTranslation){
Translation_t& Translation = Animation.Motions[i].Translations[Frame];
Bone.Translation.x = Translation.x;
Bone.Translation.y = Translation.y;
Bone.Translation.z = Translation.z;
//Use Slerp to interpolate
float w1, w2 = 1;
float cosTheta = DotProduct(&Rotation, &NextRotation);
if(cosTheta < 0){
cosTheta *= -1;
w2 *= -1;
}
if(Animation.Motions[i].HasRotation){
Rotation_t& Rotation = Animation.Motions[i].Rotations[Frame];
Bone.Rotation.x = Rotation.x;
Bone.Rotation.y = Rotation.y;
Bone.Rotation.z = Rotation.z;
Bone.Rotation.w = Rotation.w;
float theta = (float) acos(cosTheta);
float sinTheta = (float) sin(theta);
if(sinTheta > 0.001f){
w1 = (float) sin((1.0f-FractionShown)*theta)/sinTheta;
w2 *= (float) sin(FractionShown *theta)/sinTheta;
} else {
w1 = 1.0f - FractionShown;
w2 = FractionShown;
}
Bone.Rotation.x = w1*Rotation.x + w2*NextRotation.x;
Bone.Rotation.y = w1*Rotation.y + w2*NextRotation.y;
Bone.Rotation.z = w1*Rotation.z + w2*NextRotation.z;
Bone.Rotation.w = w1*Rotation.w + w2*NextRotation.w;
}
}
if(++Frame >= Animation.Motions[0].FrameCount) Frame = 0;
}
void DrawBonesSkeleton(Bone_t& Bone){
@ -275,7 +303,7 @@ void DrawBonesSkeleton(Bone_t& Bone){
float RotationMatrix[16];
FindQuaternionMatrix(RotationMatrix, &Bone.Rotation);
glMultMatrixf(RotationMatrix);
if(!strcmp(Bone.Name, "ROOT"))
glColor3f(1.0, 0.0, 0.0);
else if(!strcmp(Bone.Name, "HEAD"))
@ -283,7 +311,7 @@ void DrawBonesSkeleton(Bone_t& Bone){
else
glColor3f(0.0, 1.0, 0.0);
glBegin(GL_POINTS); glVertex3f(0, 0, 0); glEnd();
for(unsigned i=0; i<Bone.ChildrenCount; i++){
glPushMatrix();
DrawBonesSkeleton(*Bone.Children[i]);
@ -293,19 +321,26 @@ void DrawBonesSkeleton(Bone_t& Bone){
int DrawGLScene(void) // Here's Where We Do All The Drawing
{
if(keys['A']) /*{if(zoom <=-1.0f) zoom+=0.05f; }*/ zoom+=0.05f;
if(keys['S']) /*{if(zoom >=-10.0f) zoom-=0.05f; }*/ zoom-=0.05f;
if(keys[VK_UP]){ if((Character.Rotation.x-=1.0f) <=-360) Character.Rotation.x+=360; }
if(keys[VK_DOWN]){ if((Character.Rotation.x+=1.0f) >=360) Character.Rotation.x-=360; }
if(keys[VK_LEFT]){ if((Character.Rotation.y-=1.0f) <=-360) Character.Rotation.y+=360; }
if(keys[VK_RIGHT]){ if((Character.Rotation.y+=1.0f) >=360) Character.Rotation.y-=360; }
if(keys['X']){ if((Character.Rotation.z-=1.0f) <=-360) Character.Rotation.z+=360; }
if(keys['Z']){ if((Character.Rotation.z+=1.0f) >=360) Character.Rotation.z-=360; }
if(keys['K']){ Character.Translation.y-=0.05f; }
if(keys['I']){ Character.Translation.y+=0.05f; }
if(keys['J']){ Character.Translation.x-=0.05f; }
if(keys['L']){ Character.Translation.x+=0.05f; }
if(keys['N']){ AdvanceFrame(Skeleton, Animation); }
LARGE_INTEGER CurrentTime;
QueryPerformanceCounter(&CurrentTime);
float TimeDelta = (float)(CurrentTime.QuadPart-PreviousTime.QuadPart)/ClockFreq.QuadPart;
if(TimeDelta < 0) TimeDelta = 0; //Safe-guard in case of system delay
PreviousTime = CurrentTime;
if(keys['A']) /*{if(zoom <=-1.0f) zoom+=0.05f; }*/ zoom+=3*TimeDelta;
if(keys['S']) /*{if(zoom >=-10.0f) zoom-=0.05f; }*/ zoom-=3*TimeDelta;
if(keys[VK_UP]){ if((Character.Rotation.x-=60*TimeDelta) <=-360) Character.Rotation.x+=360; }
if(keys[VK_DOWN]){ if((Character.Rotation.x+=60*TimeDelta) >=360) Character.Rotation.x-=360; }
if(keys[VK_LEFT]){ if((Character.Rotation.y-=60*TimeDelta) <=-360) Character.Rotation.y+=360; }
if(keys[VK_RIGHT]){ if((Character.Rotation.y+=60*TimeDelta) >=360) Character.Rotation.y-=360; }
if(keys['X']){ if((Character.Rotation.z-=60*TimeDelta) <=-360) Character.Rotation.z+=360; }
if(keys['Z']){ if((Character.Rotation.z+=60*TimeDelta) >=360) Character.Rotation.z-=360; }
if(keys['K']){ Character.Translation.y-=3*TimeDelta; }
if(keys['I']){ Character.Translation.y+=3*TimeDelta; }
if(keys['J']){ Character.Translation.x-=3*TimeDelta; }
if(keys['L']){ Character.Translation.x+=3*TimeDelta; }
if(keys['N']){ AdvanceFrame(Skeleton, Animation, TimeDelta); }
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // Clear The Screen And The Depth Buffer
@ -377,7 +412,8 @@ void KillGLWindow(void) // Properly Kill The Window
* height - Height Of The GL Window Or Fullscreen Mode *
* bits - Number Of Bits To Use For Color (8/16/24/32) *
* fullscreenflag - Use Fullscreen Mode (TRUE) Or Windowed Mode (FALSE) */
typedef bool (APIENTRY *PFNWGLSWAPINTERVALFARPROC)(int);
BOOL CreateGLWindow(const char * title, int width, int height, int bits, bool fullscreenflag)
{
GLuint PixelFormat; // Holds The Results After Searching For A Match
@ -539,6 +575,13 @@ BOOL CreateGLWindow(const char * title, int width, int height, int bits, bool fu
MessageBox(NULL,"Initialization Failed.","ERROR",MB_OK|MB_ICONEXCLAMATION);
return FALSE; // Return FALSE
}
PFNWGLSWAPINTERVALFARPROC wglSwapIntervalEXT = 0;
wglSwapIntervalEXT = (PFNWGLSWAPINTERVALFARPROC)wglGetProcAddress("wglSwapIntervalEXT");
if(wglSwapIntervalEXT) wglSwapIntervalEXT(1);
QueryPerformanceFrequency(&ClockFreq);
QueryPerformanceCounter(&PreviousTime);
return TRUE; // Success
}
@ -574,6 +617,7 @@ LRESULT CALLBACK WndProc( HWND hWnd, // Handle For This Window
break; // Exit
}
case WM_QUIT:
case WM_CLOSE: // Did We Receive A Close Message?
{
PostQuitMessage(0); // Send A Quit Message
@ -583,6 +627,18 @@ LRESULT CALLBACK WndProc( HWND hWnd, // Handle For This Window
case WM_KEYDOWN: // Is A Key Being Held Down?
{
keys[wParam] = TRUE; // If So, Mark It As TRUE
if(wParam == VK_ESCAPE){
PostQuitMessage(0);
}else if(wParam == VK_F1){
KillGLWindow(); // Kill Our Current Window
fullscreen=!fullscreen; // Toggle Fullscreen / Windowed Mode
// Recreate Our OpenGL Window
if (!CreateGLWindow("NeHe's Solid Object Tutorial",640,480,16,fullscreen))
{
PostQuitMessage(0); // Quit If Window Was Not Created
}
}
return 0; // Jump Back
}
@ -608,9 +664,6 @@ int WINAPI WinMain( HINSTANCE, // Instance
LPSTR, // Command Line Parameters
int) // Window Show State
{
MSG msg; // Windows Message Structure
BOOL done=FALSE; // Bool Variable To Exit Loop
// Ask The User Which Screen Mode They Prefer
if (MessageBox(NULL,"Would You Like To Run In Fullscreen Mode?", "Start FullScreen?",MB_YESNO|MB_ICONQUESTION)==IDNO)
{
@ -772,52 +825,32 @@ int WINAPI WinMain( HINSTANCE, // Instance
ReadAnimation(Animation);
free(InData);
AdvanceFrame(Skeleton, Animation);
AdvanceFrame(Skeleton, Animation, 0);
// Create Our OpenGL Window
if (!CreateGLWindow("libvitaboy - Renderer",640,480,16,fullscreen))
{
return 0; // Quit If Window Was Not Created
}
while(!done) // Loop That Runs While done=FALSE
{
if (PeekMessage(&msg,NULL,0,0,PM_REMOVE)) // Is There A Message Waiting?
{
if (msg.message==WM_QUIT) // Have We Received A Quit Message?
{
done=TRUE; // If So done=TRUE
}
else // If Not, Deal With Window Messages
{
TranslateMessage(&msg); // Translate The Message
DispatchMessage(&msg); // Dispatch The Message
}
}
else // If There Are No Messages
{
// Draw The Scene. Watch For ESC Key And Quit Messages From DrawGLScene()
if ((active && !DrawGLScene()) || keys[VK_ESCAPE]) // Active? Was There A Quit Received?
{
done=TRUE; // ESC or DrawGLScene Signalled A Quit
}
else // Not Time To Quit, Update Screen
{
SwapBuffers(hDC); // Swap Buffers (Double Buffering)
}
if (keys[VK_F1]) // Is F1 Being Pressed?
{
keys[VK_F1]=FALSE; // If So Make Key FALSE
KillGLWindow(); // Kill Our Current Window
fullscreen=!fullscreen; // Toggle Fullscreen / Windowed Mode
// Recreate Our OpenGL Window
if (!CreateGLWindow("NeHe's Solid Object Tutorial",640,480,16,fullscreen))
{
return 0; // Quit If Window Was Not Created
}
}
}
bool quit = false;
MSG msg;
while(true){
while(PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)){
TranslateMessage(&msg); // Translate The Message
DispatchMessage(&msg); // Dispatch The Message
if(msg.message == WM_QUIT)
quit = true;
}
if(quit) break;
DrawGLScene();
SwapBuffers(hDC);
LARGE_INTEGER RenderTime;
QueryPerformanceCounter(&RenderTime);
float SleepDuration = ((float)1/60 - (float)(RenderTime.QuadPart-PreviousTime.QuadPart)/ClockFreq.QuadPart) * 1000;
if(SleepDuration > 1) Sleep((unsigned) SleepDuration);
}
// Shutdown

4
Libraries/libvitaboy/libvitaboy.cpp
View file

@ -36,6 +36,10 @@ void ReadPropEntries(Prop_t& Prop){
}
}
float DotProduct(Rotation_t * q1, Rotation_t * q2){
return q1->x*q2->x + q1->y*q2->y + q1->z*q2->z + q1->w*q2->w;
}
void CombineQuaternions(Rotation_t * Destination, Rotation_t * Source){
// the constructor takes its arguments as (x, y, z, w)
float dx = Destination->x;

1
Libraries/libvitaboy/libvitaboy.hpp
View file

@ -122,6 +122,7 @@ struct PropsList_t {
void ReadPropEntry(KeyValuePair_t& Entry);
void ReadPropEntries(Prop_t& Prop);
void ReadPropsList(PropsList_t& PropsList);
float DotProduct(Rotation_t * q1, Rotation_t * q2);
void CombineQuaternions(Rotation_t * Destination, Rotation_t * Source);
void FindQuaternionMatrix(float * Matrix, Rotation_t * Quaternion);