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deargui-vpl/ref/virtools/Samples/Behaviors/ParticlesSystem/behaviors src/ParticleSystemRenderCB.cpp

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#include "CKAll.h"
#include "CKRasterizer.h"
#include "ParticleEmitter.h"
#include "ParticleSystemRenderCallbacks.h"
int (*renderParticles)(CKRenderContext *dev,CKRenderObject *obj,void *arg);
// ACC - July 10,2002
// Need to add code into each RenderCB to test if shutdown
// Then we need to wait on PE to be finished
//
extern VxMutex logguard;
extern FILE* ACCLOG;
#ifdef USE_THR
void
ThreadWaitForCompletion(ParticleEmitter* em,const char* RenderingMethod)
{
#ifdef MT_VERB
// ACC, July 10, 2002
{
VxMutexLock lock (logguard);
fprintf(ACCLOG, "About to render a %s\n",RenderingMethod);
fflush(ACCLOG);
}
#endif
// Wait
if (!em->hasBeenRendered && em->hasBeenEnqueud) {
WaitForSingleObject(em->hasBeenComputedEvent, INFINITE);
em->hasBeenRendered = TRUE;
}
}
#endif
bool
IsRenderingNeeded(ParticleEmitter *em)
{
// This section of code can go into the render call back, and return premature
// if particle is shutdown
// if there is no more particles and the behavior is inactive
// We get the activity
CKBehavior* beh = em->m_Behavior;
int activity = 0;
beh->GetLocalParameterValue(1,&activity);
if(!activity && !(em->getParticles())) {
ShowParticles(beh,FALSE);
beh->ActivateOutput(1);
return false;
}
if(!em->particleCount)
return false;
return true;
}
int
RenderParticles_P(CKRenderContext *dev,CKRenderObject *obj,void *arg)
{
CK3dEntity* mov = (CK3dEntity *)obj;
ParticleEmitter *em = (ParticleEmitter*)arg;
#ifdef USE_THR
ThreadWaitForCompletion(em,"Point");
#endif
if (!IsRenderingNeeded(em))
return CKBR_OK;
VxDrawPrimitiveData* data = dev->GetDrawPrimitiveStructure(CKRST_DP_TR_CL_VC,em->particleCount);
VxMatrix oldmatrix = dev->GetWorldTransformationMatrix();
dev->SetWorldTransformationMatrix(oldmatrix*mov->GetInverseWorldMatrix());
// we don't let write to the ZBuffer
dev->SetTexture(NULL);
dev->SetState(VXRENDERSTATE_ZWRITEENABLE , FALSE);
dev->SetState(VXRENDERSTATE_SRCBLEND, em->m_SrcBlend);
dev->SetState(VXRENDERSTATE_DESTBLEND, em->m_DestBlend);
if(em->m_DestBlend!=VXBLEND_ZERO) dev->SetState(VXRENDERSTATE_ALPHABLENDENABLE, TRUE);
else dev->SetState(VXRENDERSTATE_ALPHABLENDENABLE, FALSE);
dev->SetTextureStageState(CKRST_TSS_STAGEBLEND,0,1);
Particle* p = em->getParticles();
XPtrStrided<VxVector4> positions(data->Positions);
XPtrStrided<DWORD> colors(data->Colors);
while(p) {
*positions = p->pos;
*colors = RGBAFTOCOLOR(&(p->m_Color));
// next point
p = p->next;
++colors;
++positions;
}
// The drawing
dev->DrawPrimitive(VX_POINTLIST,(WORD*)NULL,em->particleCount,data);
// we let write to the ZBuffer
dev->SetState(VXRENDERSTATE_ZWRITEENABLE , TRUE);
dev->SetWorldTransformationMatrix(oldmatrix);
return 0;
}
int
RenderParticles_L(CKRenderContext *dev,CKRenderObject *obj,void *arg)
{
CK3dEntity* mov = (CK3dEntity *)obj;
ParticleEmitter *em = (ParticleEmitter*)arg;
#ifdef USE_THR
ThreadWaitForCompletion(em,"Line");
#endif
if (!IsRenderingNeeded(em))
return CKBR_OK;
VxDrawPrimitiveData* data = dev->GetDrawPrimitiveStructure(CKRST_DP_TR_CL_VC,2*em->particleCount);
VxMatrix oldmatrix = dev->GetWorldTransformationMatrix();
dev->SetWorldTransformationMatrix(oldmatrix*mov->GetInverseWorldMatrix());
// we don't let write to the ZBuffer
dev->SetTexture(NULL);
dev->SetState(VXRENDERSTATE_ZWRITEENABLE , FALSE);
dev->SetState(VXRENDERSTATE_SRCBLEND, em->m_SrcBlend);
dev->SetState(VXRENDERSTATE_DESTBLEND, em->m_DestBlend);
if(em->m_DestBlend!=VXBLEND_ZERO) dev->SetState(VXRENDERSTATE_ALPHABLENDENABLE, TRUE);
else dev->SetState(VXRENDERSTATE_ALPHABLENDENABLE, FALSE);
dev->SetTextureStageState(CKRST_TSS_STAGEBLEND,0,1);
Particle* p = em->getParticles();
int i=0;
VxColor oldColor;
XPtrStrided<VxVector4> positions(data->Positions);
XPtrStrided<DWORD> colors(data->Colors);
while(p) {
// Colors
oldColor.r = p->m_Color.r - p->deltaColor.r*p->m_DeltaTime;
oldColor.g = p->m_Color.g - p->deltaColor.g*p->m_DeltaTime;
oldColor.b = p->m_Color.b - p->deltaColor.b*p->m_DeltaTime;
oldColor.a = p->m_Color.a - p->deltaColor.a*p->m_DeltaTime;
// Start of line
*positions = p->pos - p->dir*p->m_DeltaTime;
++positions;
*colors = RGBAFTOCOLOR(&oldColor);
++colors;
// End of line
*positions = p->pos + p->dir*p->m_Angle;
++positions;
*colors = RGBAFTOCOLOR(&(p->m_Color));
++colors;
// Next particle
p = p->next;
}
// the Drawing itself
dev->DrawPrimitive(VX_LINELIST,(WORD*)NULL,em->particleCount,data);
// we let write to the ZBuffer
dev->SetState(VXRENDERSTATE_ZWRITEENABLE , TRUE);
dev->SetWorldTransformationMatrix(oldmatrix);
return 0;
}
int
RenderParticles_LL(CKRenderContext *dev,CKRenderObject *obj,void *arg)
{
CK3dEntity* mov = (CK3dEntity *)obj;
ParticleEmitter *em = (ParticleEmitter*)arg;
#ifdef USE_THR
ThreadWaitForCompletion(em,"LongLine");
#endif
if (!IsRenderingNeeded(em))
return CKBR_OK;
VxDrawPrimitiveData* data = dev->GetDrawPrimitiveStructure(CKRST_DP_TR_CL_VC,
(em->m_TrailCount) * 2 * em->particleCount);
VxMatrix oldmatrix = dev->GetWorldTransformationMatrix();
dev->SetWorldTransformationMatrix(oldmatrix*mov->GetInverseWorldMatrix());
// we don't let write to the ZBuffer
dev->SetTexture(NULL);
dev->SetState(VXRENDERSTATE_ZWRITEENABLE , FALSE);
dev->SetState(VXRENDERSTATE_SRCBLEND, em->m_SrcBlend);
dev->SetState(VXRENDERSTATE_DESTBLEND, em->m_DestBlend);
if(em->m_DestBlend!=VXBLEND_ZERO) dev->SetState(VXRENDERSTATE_ALPHABLENDENABLE, TRUE);
else dev->SetState(VXRENDERSTATE_ALPHABLENDENABLE, FALSE);
dev->SetTextureStageState(CKRST_TSS_STAGEBLEND,0,1);
Particle* p = em->getParticles();
int i=0;
VxColor oldColor;
XPtrStrided<VxVector4> positions(data->Positions);
XPtrStrided<DWORD> colors(data->Colors);
DWORD num_prims = 0;
while(p)
{
#define for if (false) {} else for
ParticleEmitter::ParticleHistoric &ph = em->GetParticleHistoric(p);
// L. Puts the particle in the VB
// Assumes, that when count isn't to the max, start is always 0;
unsigned int prev = 0;
unsigned int px = 1;
unsigned int l1end = 0;
unsigned int l2end = 0;
if (ph.start == 0)
{
l1end = ph.count;
l2end = 0;
}
else
{
l1end = ph.start;
l2end = ph.particles.Size();
*positions = ph.particles[l2end - 1].pos;
++positions;
*colors = RGBAFTOCOLOR(&(p->m_Color));
++colors;
*positions = ph.particles[0].pos;
++positions;
*colors = RGBAFTOCOLOR(&(p->m_Color));
++colors;
}
for (; px < l1end; prev = px++)
{
*positions = ph.particles[prev].pos;
++positions;
*colors = RGBAFTOCOLOR(&(p->m_Color));
++colors;
*positions = ph.particles[px].pos;
++positions;
*colors = RGBAFTOCOLOR(&(p->m_Color));
++colors;
}
for (prev = px++; px < l2end; prev = px++)
{
*positions = ph.particles[prev].pos;
++positions;
*colors = RGBAFTOCOLOR(&(p->m_Color));
++colors;
*positions = ph.particles[px].pos;
++positions;
*colors = RGBAFTOCOLOR(&(p->m_Color));
++colors;
}
num_prims += ph.count - 1;
// Next particle
p = p->next;
}
// the Drawing itself
dev->DrawPrimitive(VX_LINELIST,(WORD*)NULL,num_prims,data);
// we let write to the ZBuffer
dev->SetState(VXRENDERSTATE_ZWRITEENABLE , TRUE);
dev->SetWorldTransformationMatrix(oldmatrix);
return 0;
}
int
RenderParticles_S(CKRenderContext *dev,CKRenderObject *obj,void *arg)
{
CK3dEntity* mov = (CK3dEntity *)obj;
ParticleEmitter *em = (ParticleEmitter*)arg;
#ifdef USE_THR
ThreadWaitForCompletion(em,"Sprite");
#endif
if (!IsRenderingNeeded(em))
return CKBR_OK;
const int VBUFFERSIZE = 4000;
int pc = em->particleCount;
#ifndef PSX2
VxDrawPrimitiveData* data = dev->GetDrawPrimitiveStructure((CKRST_DPFLAGS)(CKRST_DP_TR_CL_VCT|CKRST_DP_VBUFFER),(4*pc>VBUFFERSIZE)?VBUFFERSIZE:4*pc);
#else
VxDrawPrimitiveData* data = dev->GetDrawPrimitiveStructure((CKRST_DPFLAGS)(CKRST_DP_TR_CL_VCT),(4*pc>VBUFFERSIZE)?VBUFFERSIZE:4*pc);
#endif
XPtrStrided<VxUV> uvs(data->TexCoord);
XPtrStrided<VxVector4> positions(data->Positions);
XPtrStrided<DWORD> colors(data->Colors);
///
// Indices
if (pc*6 > ParticleEmitter::m_GlobalIndicesCount) {
delete [] ParticleEmitter::m_GlobalIndices;
ParticleEmitter::m_GlobalIndicesCount = pc*6;
ParticleEmitter::m_GlobalIndices = new WORD[ParticleEmitter::m_GlobalIndicesCount];
int ni = 0;
int fi = 0;
for (int i=0; i<pc; ++i) {
ParticleEmitter::m_GlobalIndices[fi] = ni;
ParticleEmitter::m_GlobalIndices[fi+1] = ni+1;
ParticleEmitter::m_GlobalIndices[fi+2] = ni+2;
ParticleEmitter::m_GlobalIndices[fi+3] = ni;
ParticleEmitter::m_GlobalIndices[fi+4] = ni+2;
ParticleEmitter::m_GlobalIndices[fi+5] = ni+3;
fi += 6;
ni += 4;
}
}
// Render States
// TMP TMP em->SetState(dev);
CK3dEntity *cam = dev->GetViewpoint();
const VxMatrix& mat = cam->GetWorldMatrix();
VxMatrix oldmatrix = dev->GetWorldTransformationMatrix();
VxMatrix realmatrix = oldmatrix*mov->GetInverseWorldMatrix();
dev->SetWorldTransformationMatrix(realmatrix);
VxVector camright; Vx3DRotateVector(&camright,realmatrix,&mat[0]);
VxVector camup; Vx3DRotateVector(&camup,realmatrix,&mat[1]);
camright.Normalize();
camup.Normalize();
BOOL changeuv = FALSE;
float step = 1.0f;
int framehc = 0;
if(em->m_TextureFrameCount>1) {
changeuv = TRUE;
framehc = 1+(int)(sqrtf((float)(em->m_TextureFrameCount-1)));
step = 1.0f/framehc;
}
Particle* p = em->getParticles();
VxVector cr,cu;
VxVector rcr,rcu;
VxVector pos;
float u = 0.0f;
float v = 0.0f;
int np=0;
int remaining = 4*pc;
unsigned int (*ColorConvertor) (const VxColor*);
if (dev->GetRasterizerContext()->m_Driver->m_3DCaps.CKRasterizerSpecificCaps & CKRST_SPECIFICCAPS_VERTEXCOLORABGR)
ColorConvertor = &BGRAFTOCOLOR;
else
ColorConvertor = &RGBAFTOCOLOR;
while(p) {
pos = p->pos;
// Precalcul for positions
float halfsize = p->m_Size*0.5f;
cr = camright*halfsize;
cu = camup*halfsize;
// Angle rotation, if necessary
if(p->m_Angle) {
float cosa = cosf(p->m_Angle);
float sina = sinf(p->m_Angle);
rcr = cr*cosa - cu*sina;
rcu = cr*sina + cu*cosa;
cr = rcr;
cu = rcu;
}
// Precalcul for color
// We must now swap the color according to the rasterizer
DWORD col = (*ColorConvertor)(&(p->m_Color));
// Precalcul for uvs
if (changeuv) {
v = 0.0f;
int c = p->m_CurrentFrame;
while(c >= framehc) {
v += step;
c -= framehc;
}
u=c*step;
}
// Filling vertices
*positions = pos-cr+cu;
++positions;
*colors = col;
++colors;
uvs->u = u;
uvs->v = v;
++uvs;
*positions = pos+cr+cu;
++positions;
*colors = col;
++colors;
uvs->u = u+step;
uvs->v = v;
++uvs;
*positions = pos+cr-cu;
++positions;
*colors = col;
++colors;
uvs->u = u+step;
uvs->v = v+step;
++uvs;
*positions = pos-cr-cu;
++positions;
*colors = col;
++colors;
uvs->u = u;
uvs->v = v+step;
++uvs;
++np;
p = p->next;
if (np*4 == VBUFFERSIZE) { // need to flush the vertex buffer
// The Primitive Drawing
em->DrawPrimitive(dev, FALSE, VX_TRIANGLELIST, ParticleEmitter::m_GlobalIndices, 6*np, data );
remaining -= VBUFFERSIZE;
np = 0; // restart
if (remaining > 0) {
#ifndef PSX2
data = dev->GetDrawPrimitiveStructure((CKRST_DPFLAGS)(CKRST_DP_TR_CL_VCT|CKRST_DP_VBUFFER),(remaining>VBUFFERSIZE)?VBUFFERSIZE:remaining);
#else
data = dev->GetDrawPrimitiveStructure((CKRST_DPFLAGS)(CKRST_DP_TR_CL_VCT),(remaining>VBUFFERSIZE)?VBUFFERSIZE:remaining);
#endif
uvs = data->TexCoord;
positions = data->Positions;
colors = data->Colors;
}
}
}
// The Primitive Drawing
if (remaining) em->DrawPrimitive(dev, FALSE, VX_TRIANGLELIST, ParticleEmitter::m_GlobalIndices, 6*np, data );
// we let write to the ZBuffer
dev->SetState(VXRENDERSTATE_ZWRITEENABLE , TRUE);
dev->SetWorldTransformationMatrix(oldmatrix);
return 1;
}
//-----------------------------------------------------------------------------
// Long sprite (with trail)
int
RenderParticles_LS(CKRenderContext *dev,CKRenderObject *obj,void *arg)
{
CK3dEntity* mov = (CK3dEntity *)obj;
ParticleEmitter *em = (ParticleEmitter*)arg;
#ifdef USE_THR
ThreadWaitForCompletion(em,"LongSprite");
#endif
if (!IsRenderingNeeded(em))
return CKBR_OK;
const int VBUFFERSIZE = 4000;
assert(em->m_TrailCount > 0);
int pc = em->particleCount * em->m_TrailCount;
#ifndef PSX2
VxDrawPrimitiveData* data = dev->GetDrawPrimitiveStructure((CKRST_DPFLAGS)(CKRST_DP_TR_CL_VCT|CKRST_DP_VBUFFER),(4*pc>VBUFFERSIZE)?VBUFFERSIZE:4*pc);
#else
VxDrawPrimitiveData* data = dev->GetDrawPrimitiveStructure((CKRST_DPFLAGS)(CKRST_DP_TR_CL_VCT),(4*pc>VBUFFERSIZE)?VBUFFERSIZE:4*pc);
#endif
XPtrStrided<VxUV> uvs(data->TexCoord);
XPtrStrided<VxVector4> positions(data->Positions);
XPtrStrided<DWORD> colors(data->Colors);
///
// Indices
if (pc*6 > ParticleEmitter::m_GlobalIndicesCount) {
delete [] ParticleEmitter::m_GlobalIndices;
ParticleEmitter::m_GlobalIndicesCount = pc*6;
ParticleEmitter::m_GlobalIndices = new WORD[ParticleEmitter::m_GlobalIndicesCount];
int ni = 0;
int fi = 0;
for (int i=0; i<pc; ++i) {
ParticleEmitter::m_GlobalIndices[fi] = ni;
ParticleEmitter::m_GlobalIndices[fi+1] = ni+1;
ParticleEmitter::m_GlobalIndices[fi+2] = ni+2;
ParticleEmitter::m_GlobalIndices[fi+3] = ni;
ParticleEmitter::m_GlobalIndices[fi+4] = ni+2;
ParticleEmitter::m_GlobalIndices[fi+5] = ni+3;
fi += 6;
ni += 4;
}
}
// Render States
// TMP TMP em->SetState(dev);
CK3dEntity *cam = dev->GetViewpoint();
const VxMatrix& mat = cam->GetWorldMatrix();
VxMatrix oldmatrix = dev->GetWorldTransformationMatrix();
VxMatrix realmatrix = oldmatrix*mov->GetInverseWorldMatrix();
dev->SetWorldTransformationMatrix(realmatrix);
VxVector camright; Vx3DRotateVector(&camright,realmatrix,&mat[0]);
VxVector camup; Vx3DRotateVector(&camup,realmatrix,&mat[1]);
camright.Normalize();
camup.Normalize();
BOOL changeuv = FALSE;
float step = 1.0f;
int framehc = 0;
if(em->m_TextureFrameCount>1) {
changeuv = TRUE;
framehc = 1+(int)(sqrtf((float)(em->m_TextureFrameCount-1)));
step = 1.0f/framehc;
}
Particle* p = em->getParticles();
int np=0;
int remaining = 4*pc;
while(p)
{
struct local
{
static inline void FillParticle(const Particle *p,
VxDrawPrimitiveData* data, XPtrStrided<VxVector4>& positions, XPtrStrided<DWORD>& colors,
XPtrStrided<VxUV>& uvs, const VxVector &camup, const VxVector &camright,
BOOL changeuv, int framehc, float step)
{
VxVector pos = p->pos;
// Precalcul for positions
float halfsize = p->m_Size * 0.5f;
VxVector cr = camright*halfsize;
VxVector cu = camup*halfsize;
VxVector rcr , rcu;
// Angle rotation, if necessary
if(p->m_Angle) {
float cosa = cosf(p->m_Angle);
float sina = sinf(p->m_Angle);
rcr = cr*cosa - cu*sina;
rcu = cr*sina + cu*cosa;
cr = rcr;
cu = rcu;
}
// Precalcul for color
DWORD col = RGBAFTOCOLOR(&(p->m_Color));
float u = 0.0f;
float v = 0.0f;
// Precalcul for uvs
if (changeuv) {
v = 0.0f;
int c = p->m_CurrentFrame;
while(c >= framehc) {
v += step;
c -= framehc;
}
u=c*step;
}
// Filling vertices
*positions = pos-cr+cu;
++positions;
*colors = col;
++colors;
uvs->u = u;
uvs->v = v;
++uvs;
*positions = pos+cr+cu;
++positions;
*colors = col;
++colors;
uvs->u = u+step;
uvs->v = v;
++uvs;
*positions = pos+cr-cu;
++positions;
*colors = col;
++colors;
uvs->u = u+step;
uvs->v = v+step;
++uvs;
*positions = pos-cr-cu;
++positions;
*colors = col;
++colors;
uvs->u = u;
uvs->v = v+step;
++uvs;
}
};
// need to flush the vertex buffer
if ((np + em->m_TrailCount) * 4 > VBUFFERSIZE)
{
// The Primitive Drawing
em->DrawPrimitive(dev, FALSE, VX_TRIANGLELIST, ParticleEmitter::m_GlobalIndices, 6 * np, data );
remaining -= np * 4;
np = 0; // restart
if (remaining > 0) {
#ifndef PSX2
data = dev->GetDrawPrimitiveStructure((CKRST_DPFLAGS)(CKRST_DP_TR_CL_VCT|CKRST_DP_VBUFFER),(remaining>VBUFFERSIZE)?VBUFFERSIZE:remaining);
#else
data = dev->GetDrawPrimitiveStructure((CKRST_DPFLAGS)(CKRST_DP_TR_CL_VCT),(remaining>VBUFFERSIZE)?VBUFFERSIZE:remaining);
#endif
uvs = data->TexCoord;
positions = data->Positions;
colors = data->Colors;
}
}
if (em->m_TrailCount == 0)
{
local::FillParticle(p, data, positions, colors, uvs, camup, camright,
changeuv, framehc, step);
++np;
}
else
{
// Assumes that when start != 0, count == m_TrailCount
// So the buffer is full, and order does not matter.
ParticleEmitter::ParticleHistoric &ph = em->GetParticleHistoric(p);
for (int px = 0; px < ph.count; ++px)
{
local::FillParticle(&ph.particles[px], data, positions, colors,
uvs, camup, camright, changeuv, framehc, step);
++np;
}
}
p = p->next;
}
// The Primitive Drawing
if (remaining && np > 0)
em->DrawPrimitive(dev, FALSE, VX_TRIANGLELIST, ParticleEmitter::m_GlobalIndices, 6 * np, data );
dev->ReleaseCurrentVB();
// we let write to the ZBuffer
dev->SetState(VXRENDERSTATE_ZWRITEENABLE , TRUE);
dev->SetWorldTransformationMatrix(oldmatrix);
return 1;
}
int
RenderParticles_FS(CKRenderContext *dev,CKRenderObject *obj,void *arg)
{
CK3dEntity* mov = (CK3dEntity *)obj;
ParticleEmitter *em = (ParticleEmitter*)arg;
#ifdef USE_THR
ThreadWaitForCompletion(em,"FastSprite");
#endif
if (!IsRenderingNeeded(em))
return CKBR_OK;
int pc = em->particleCount;
VxDrawPrimitiveData* data = dev->GetDrawPrimitiveStructure((CKRST_DPFLAGS)(CKRST_DP_TR_CL_VCT),3*pc);
XPtrStrided<VxUV> uvs(data->TexCoord);
XPtrStrided<VxVector4> positions(data->Positions);
XPtrStrided<DWORD> colors(data->Colors);
// Render States
// TMP TMP em->SetState(dev);
CK3dEntity *cam = dev->GetViewpoint();
const VxMatrix& mat = cam->GetWorldMatrix();
VxMatrix oldmatrix = dev->GetWorldTransformationMatrix();
VxMatrix realmatrix = oldmatrix*mov->GetInverseWorldMatrix();
dev->SetWorldTransformationMatrix(realmatrix);
VxVector camright; Vx3DRotateVector(&camright,realmatrix,&mat[0]);
VxVector camup; Vx3DRotateVector(&camup,realmatrix,&mat[1]);
camright.Normalize();
camup.Normalize();
BOOL changeuv = FALSE;
float step = 1.0f;
int framehc = 0;
if(em->m_TextureFrameCount>1) {
changeuv = TRUE;
framehc = 1+(int)(sqrtf((float)(em->m_TextureFrameCount-1)));
step = 1.0f/framehc;
}
Particle* p = em->getParticles();
VxVector cr,cu;
VxVector rcr,rcu;
VxVector pos;
float u = 0.0f;
float v = 0.0f;
int count = 0;
while(p) {
cr = camright*p->m_Size*0.5f;
cu = camup*p->m_Size*0.5f;
// Positions
if(p->m_Angle) {
float cosa = cosf(p->m_Angle);
float sina = sinf(p->m_Angle);
rcr = cr*cosa - cu*sina;
rcu = cr*sina + cu*cosa;
cr = rcr;
cu = rcu;
}
pos = p->pos;
// Colors
DWORD col = RGBAFTOCOLOR(&(p->m_Color));
// The texture coordinates
if(changeuv) {
v = 0.0f;
int c = p->m_CurrentFrame;
while(c >= framehc) {
v += step;
c -= framehc;
}
u=c*step;
}
*positions = pos+cu;
++positions;
*colors = col;
++colors;
uvs->u = u+step*0.5f;
uvs->v = v;
++uvs;
*positions = pos+cr-cu;
++positions;
*colors = col;
++colors;
uvs->u = u+step;
uvs->v = v+step;
++uvs;
*positions = pos-cr-cu;
++positions;
*colors = col;
++colors;
uvs->u = u;
uvs->v = v+step;
++uvs;
p = p->next;
++count;
}
// The Primitive Drawing
em->DrawPrimitive(dev, FALSE, VX_TRIANGLELIST, (WORD*)NULL, 3*pc, data );
// we let write to the ZBuffer
dev->SetState(VXRENDERSTATE_ZWRITEENABLE , TRUE);
dev->SetWorldTransformationMatrix(oldmatrix);
return 1;
}
// Oriented Sprite
int
RenderParticles_OS(CKRenderContext *dev,CKRenderObject *obj,void *arg)
{
CK3dEntity* mov = (CK3dEntity *)obj;
ParticleEmitter *em = (ParticleEmitter*)arg;
#ifdef USE_THR
ThreadWaitForCompletion(em,"OrientableSprite");
#endif
if (!IsRenderingNeeded(em))
return CKBR_OK;
int pc = em->particleCount;
#ifndef PSX2
VxDrawPrimitiveData* data = dev->GetDrawPrimitiveStructure((CKRST_DPFLAGS)(CKRST_DP_TR_CL_VCT/*|CKRST_DP_VBUFFER*/),4*pc);
#else
VxDrawPrimitiveData* data = dev->GetDrawPrimitiveStructure((CKRST_DPFLAGS)(CKRST_DP_TR_CL_VCT),4*pc);
#endif
XPtrStrided<VxUV> uvs(data->TexCoord);
XPtrStrided<VxVector4> positions(data->Positions);
XPtrStrided<DWORD> colors(data->Colors);
///
// Indices
if (pc*6 > ParticleEmitter::m_GlobalIndicesCount) {
delete [] ParticleEmitter::m_GlobalIndices;
ParticleEmitter::m_GlobalIndicesCount = pc*6;
ParticleEmitter::m_GlobalIndices = new WORD[ParticleEmitter::m_GlobalIndicesCount];
int ni = 0;
int fi = 0;
for (int i=0; i<pc; ++i) {
ParticleEmitter::m_GlobalIndices[fi] = ni;
ParticleEmitter::m_GlobalIndices[fi+1] = ni+1;
ParticleEmitter::m_GlobalIndices[fi+2] = ni+2;
ParticleEmitter::m_GlobalIndices[fi+3] = ni;
ParticleEmitter::m_GlobalIndices[fi+4] = ni+2;
ParticleEmitter::m_GlobalIndices[fi+5] = ni+3;
fi += 6;
ni += 4;
}
}
// Set States
// TMP TMP em->SetState(dev,TRUE);
CK3dEntity *cam = dev->GetViewpoint();
const VxMatrix& mat = cam->GetWorldMatrix();
VxMatrix oldmatrix = dev->GetWorldTransformationMatrix();
VxMatrix realmatrix = oldmatrix*mov->GetInverseWorldMatrix();
dev->SetWorldTransformationMatrix(realmatrix);
VxVector camright; Vx3DRotateVector(&camright,realmatrix,&mat[0]);
VxVector camup; Vx3DRotateVector(&camup,realmatrix,&mat[1]);
VxVector camdir; Vx3DRotateVector(&camdir,realmatrix,&mat[2]);
camright.Normalize();
camup.Normalize();
camdir.Normalize();
BOOL changeuv = FALSE;
float step = 1.0f;
int framehc = 0;
if(em->m_TextureFrameCount>1) {
changeuv = TRUE;
framehc = 1+(int)((float)(sqrtf((float)(em->m_TextureFrameCount-1))));
step = 1.0f/framehc;
}
Particle* p = em->getParticles();
VxVector pos,dir,old,vv(0,0,0),ww(0,0,0);
float oldsize;
VxColor oldColor;
float u = 0.0f;
float v = 0.0f;
int ni = 0;
int fi = 0;
while(p) {
pos = p->pos;
dir = p->dir;
// the old pos
old = pos - dir*p->m_DeltaTime;
// the old size
oldsize = p->m_Size - p->m_DeltaSize * p->m_DeltaTime;
// we exagerate the current position according to the latenty
pos += dir*p->m_Angle;
vv = pos - old;
vv.Normalize();
ww = Normalize(CrossProduct(camdir,vv));
// the colors
oldColor.r = p->m_Color.r - p->deltaColor.r*p->m_DeltaTime;
oldColor.g = p->m_Color.g - p->deltaColor.g*p->m_DeltaTime;
oldColor.b = p->m_Color.b - p->deltaColor.b*p->m_DeltaTime;
oldColor.a = p->m_Color.a - p->deltaColor.a*p->m_DeltaTime;
DWORD col = RGBAFTOCOLOR(&(p->m_Color));
DWORD oldcol = RGBAFTOCOLOR(&oldColor);
// The texture coordinates
if(changeuv) {
v = 0.0f;
int c = p->m_CurrentFrame;
while(c >= framehc) {
v += step;
c -= framehc;
}
u=c*step;
}
// Filling vertices
*positions = pos+vv*p->m_Size+ww*p->m_Size;
++positions;
*colors = col;
++colors;
uvs->u = u;
uvs->v = v;
++uvs;
*positions = pos+vv*p->m_Size-ww*p->m_Size;
++positions;
*colors = col;
++colors;
uvs->u = u+step;
uvs->v = v;
++uvs;
*positions = old-vv*oldsize-ww*oldsize;
++positions;
*colors = oldcol;
++colors;
uvs->u = u+step;
uvs->v = v+step;
++uvs;
*positions = old-vv*oldsize+ww*oldsize;
++positions;
*colors = oldcol;
++colors;
uvs->u = u;
uvs->v = v+step;
++uvs;
p = p->next;
ni += 4;
}
// The Primitive Drawing
em->DrawPrimitive(dev, TRUE, VX_TRIANGLELIST, ParticleEmitter::m_GlobalIndices, 6*pc, data );
// we let write to the ZBuffer
dev->SetState(VXRENDERSTATE_ZWRITEENABLE , TRUE);
dev->SetWorldTransformationMatrix(oldmatrix);
return 1;
}
//-----------------------------------------------------------------------------
// Long Oriented Sprite (with trail)
int
RenderParticles_LOS(CKRenderContext *dev,CKRenderObject *obj,void *arg)
{
CK3dEntity* mov = (CK3dEntity *)obj;
ParticleEmitter *em = (ParticleEmitter*)arg;
#ifdef USE_THR
ThreadWaitForCompletion(em,"LongOrientableSprite");
#endif
if (!IsRenderingNeeded(em))
return CKBR_OK;
const int VBUFFERSIZE = 4000;
assert(em->m_TrailCount > 1);
int pc = em->particleCount;
// Maximum number of vertices per particle.
const int num_vtx_max = (em->m_TrailCount) * 2;
// Maximum number of indices per particle.
const int num_idx_max = (em->m_TrailCount - 1) * 2 * 3;
#ifndef PSX2
VxDrawPrimitiveData* data = dev->GetDrawPrimitiveStructure((CKRST_DPFLAGS)(CKRST_DP_TR_CL_VCT|CKRST_DP_VBUFFER),(num_vtx_max*pc>VBUFFERSIZE)?VBUFFERSIZE:num_vtx_max*pc);
#else
VxDrawPrimitiveData* data = dev->GetDrawPrimitiveStructure((CKRST_DPFLAGS)(CKRST_DP_TR_CL_VCT),(num_vtx_max*pc>VBUFFERSIZE)?VBUFFERSIZE:num_vtx_max*pc);
#endif
XPtrStrided<VxUV> uvs(data->TexCoord);
XPtrStrided<VxVector4> positions(data->Positions);
XPtrStrided<DWORD> colors(data->Colors);
// Index buffer
CKWORD *index_buffer = dev->GetDrawPrimitiveIndices(pc * num_idx_max);
// Render States
// TMP TMP em->SetState(dev);
CK3dEntity *cam = dev->GetViewpoint();
const VxMatrix& mat = cam->GetWorldMatrix();
VxMatrix oldmatrix = dev->GetWorldTransformationMatrix();
VxMatrix realmatrix = oldmatrix*mov->GetInverseWorldMatrix();
dev->SetWorldTransformationMatrix(realmatrix);
VxVector camdir; Vx3DRotateVector(&camdir,realmatrix,&mat[2]);
BOOL changeuv = FALSE;
float step = 1.0f;
int framehc = 0;
if(em->m_TextureFrameCount>1) {
changeuv = TRUE;
framehc = 1+(int)(sqrtf((float)(em->m_TextureFrameCount-1)));
step = 1.0f/framehc;
}
Particle* p = em->getParticles();
int remaining = num_vtx_max * pc;
int fi=0; // face index
int ni=0; // number of indices
while(p)
{
// Precalcul for positions
float halfsize = p->m_Size * 0.5f;
VxVector cd = CrossProduct(camdir, p->dir);
cd.Normalize();
cd *= halfsize;
// Precalcul for color
DWORD col = RGBAFTOCOLOR(&(p->m_Color));
float u = 0.0f;
float v = 0.0f;
// Precalcul for uvs
if (changeuv) {
v = 0.0f;
int c = p->m_CurrentFrame;
while(c >= framehc) {
v += step;
c -= framehc;
}
u=c*step;
}
// Assumes that when start != 0, count == m_TrailCount
// So the buffer is full.
// Along u texture coordinate.
ParticleEmitter::ParticleHistoric &ph = em->GetParticleHistoric(p);
// Number of vertices per particles.
const int num_vtx = (ph.count) * 2;
// need to flush the vertex buffer
if (ni + num_vtx > VBUFFERSIZE)
{
// The Primitive Drawing
em->DrawPrimitive(dev, FALSE, VX_TRIANGLELIST, index_buffer, fi, data );
remaining -= ni;
fi = 0;
ni = 0;
if (remaining > 0)
{
#ifndef PSX2
data = dev->GetDrawPrimitiveStructure((CKRST_DPFLAGS)(CKRST_DP_TR_CL_VCT|CKRST_DP_VBUFFER),(remaining>VBUFFERSIZE)?VBUFFERSIZE:remaining);
#else
data = dev->GetDrawPrimitiveStructure((CKRST_DPFLAGS)(CKRST_DP_TR_CL_VCT),(remaining>VBUFFERSIZE)?VBUFFERSIZE:remaining);
#endif
uvs = data->TexCoord;
positions = data->Positions;
colors = data->Colors;
index_buffer = dev->GetDrawPrimitiveIndices(pc * num_idx_max);
}
}
float local_step = step * (1.0f / (ph.count + 1));
int start = ph.start;
int size = ph.count;
while (start || size)
{
for (int px = start; px < size; ++px)
{
VxVector &pos = ph.particles[px].pos;
DWORD col = RGBAFTOCOLOR(&ph.particles[px].m_Color);
// Filling vertices
*positions = pos + cd;
++positions;
*colors = col;
++colors;
uvs->u = u;
uvs->v = v;
++uvs;
*positions = pos - cd;
++positions;
*colors = col;
++colors;
uvs->u = u;
uvs->v = v + step;
++uvs;
u += local_step;
if (px != ph.start)
{
index_buffer[fi] = ni-2;
index_buffer[fi+1] = ni;
index_buffer[fi+2] = ni+1;
index_buffer[fi+3] = ni-2;
index_buffer[fi+4] = ni+1;
index_buffer[fi+5] = ni-1;
fi += 6;
}
ni += 2;
}
if (size == ph.count)
{
start = 0;
size = ph.start;
}
else
{
start = size = 0;
}
}
p = p->next;
}
// The Primitive Drawing
if (remaining && fi > 0)
{
data->VertexCount = ni;
em->DrawPrimitive(dev, FALSE, VX_TRIANGLELIST, index_buffer, fi, data);
}
dev->ReleaseCurrentVB();
// we let write to the ZBuffer
dev->SetState(VXRENDERSTATE_ZWRITEENABLE , TRUE);
dev->SetWorldTransformationMatrix(oldmatrix);
return 1;
}
// Comet Sprite
int
RenderParticles_CS(CKRenderContext *dev,CKRenderObject *obj,void *arg)
{
CK3dEntity* mov = (CK3dEntity *)obj;
ParticleEmitter *em = (ParticleEmitter*)arg;
#ifdef USE_THR
ThreadWaitForCompletion(em,"Comet");
#endif
if (!IsRenderingNeeded(em))
return CKBR_OK;
int pc = em->particleCount;
VxDrawPrimitiveData* data = dev->GetDrawPrimitiveStructure(CKRST_DP_TR_CL_VCT,4*pc);
XPtrStrided<VxUV> uvs(data->TexCoord);
XPtrStrided<VxVector4> positions(data->Positions);
XPtrStrided<DWORD> colors(data->Colors);
///
// Indices
if (pc*6 > ParticleEmitter::m_GlobalIndicesCount) {
delete [] ParticleEmitter::m_GlobalIndices;
ParticleEmitter::m_GlobalIndicesCount = pc*6;
ParticleEmitter::m_GlobalIndices = new WORD[ParticleEmitter::m_GlobalIndicesCount];
int ni = 0;
int fi = 0;
for (int i=0; i<pc; ++i) {
ParticleEmitter::m_GlobalIndices[fi] = ni;
ParticleEmitter::m_GlobalIndices[fi+1] = ni+1;
ParticleEmitter::m_GlobalIndices[fi+2] = ni+2;
ParticleEmitter::m_GlobalIndices[fi+3] = ni;
ParticleEmitter::m_GlobalIndices[fi+4] = ni+2;
ParticleEmitter::m_GlobalIndices[fi+5] = ni+3;
fi += 6;
ni += 4;
}
}
// Set States
// TMP TMP em->SetState(dev,TRUE);
CK3dEntity *cam = dev->GetViewpoint();
const VxMatrix& mat = cam->GetWorldMatrix();
VxMatrix oldmatrix = dev->GetWorldTransformationMatrix();
VxMatrix realmatrix = oldmatrix*mov->GetInverseWorldMatrix();
dev->SetWorldTransformationMatrix(realmatrix);
VxVector camright; Vx3DRotateVector(&camright,realmatrix,&mat[0]);
VxVector camup; Vx3DRotateVector(&camup,realmatrix,&mat[1]);
VxVector camdir; Vx3DRotateVector(&camdir,realmatrix,&mat[2]);
camright.Normalize();
camup.Normalize();
camdir.Normalize();
BOOL changeuv = FALSE;
float step = 1.0f;
int framehc = 0;
if(em->m_TextureFrameCount>1) {
changeuv = TRUE;
framehc = 1+(int)((float)(sqrtf((float)(em->m_TextureFrameCount-1))));
step = 1.0f/framehc;
}
Particle* p = em->getParticles();
VxVector pos,dir,center,old,vv(0,0,0),ww(0,0,0);
VxColor oldColor;
float u = 0.0f;
float v = 0.0f;
int ni = 0;
int fi = 0;
while(p) {
pos = p->pos;
dir = p->dir;
float halfsize = p->m_Size;
float speed = Magnitude(dir);
dir /= speed;
// the old pos
old = pos - dir*(2.0f*halfsize+speed*p->m_Angle*p->m_DeltaTime);
vv = pos - old;
float fu = -halfsize*DotProduct(dir,camright);
float fv = -halfsize*DotProduct(dir,camup);
ww = -fv*camright+fu*camup;
center = pos - halfsize*dir;
// w = Normalize(CrossProduct(camdir,v));
// Colors
oldColor.r = p->m_Color.r - p->deltaColor.r*p->m_DeltaTime;
oldColor.g = p->m_Color.g - p->deltaColor.g*p->m_DeltaTime;
oldColor.b = p->m_Color.b - p->deltaColor.b*p->m_DeltaTime;
oldColor.a = p->m_Color.a - p->deltaColor.a*p->m_DeltaTime;
DWORD col = RGBAFTOCOLOR(&(p->m_Color));
DWORD oldcol = RGBAFTOCOLOR(&oldColor);
// The texture coordinates
if(changeuv) {
v = 0.0f;
int c = p->m_CurrentFrame;
while(c >= framehc) {
v += step;
c -= framehc;
}
u=c*step;
}
// Filling vertices
*positions = center+ww;
++positions;
*colors = col;
++colors;
uvs->u = u;
uvs->v = v;
++uvs;
*positions = pos;
++positions;
*colors = col;
++colors;
uvs->u = u+step;
uvs->v = v;
++uvs;
*positions = center-ww;
++positions;
*colors = col;
++colors;
uvs->u = u+step;
uvs->v = v+step;
++uvs;
*positions = old;
++positions;
*colors = oldcol;
++colors;
uvs->u = u;
uvs->v = v+step;
++uvs;
p = p->next;
ni += 4;
}
// The Primitive Drawing
em->DrawPrimitive(dev, TRUE, VX_TRIANGLELIST, ParticleEmitter::m_GlobalIndices, 6*pc, data );
// we let write to the ZBuffer
dev->SetState(VXRENDERSTATE_ZWRITEENABLE , TRUE);
dev->SetWorldTransformationMatrix(oldmatrix);
return 1;
}
int
RenderParticles_RS(CKRenderContext *dev,CKRenderObject *obj,void *arg)
{
CK3dEntity* mov = (CK3dEntity *)obj;
ParticleEmitter *em = (ParticleEmitter*)arg;
// ACC, July 10, 2002
#ifdef USE_THR
ThreadWaitForCompletion(em,"Radial");
#endif
if (!IsRenderingNeeded(em))
return CKBR_OK;
int pc = em->particleCount;
VxDrawPrimitiveData* data = dev->GetDrawPrimitiveStructure(CKRST_DP_TR_CL_VCT,4*pc);
///
// Indices
if (pc*6 > ParticleEmitter::m_GlobalIndicesCount) {
delete [] ParticleEmitter::m_GlobalIndices;
ParticleEmitter::m_GlobalIndicesCount = pc*6;
ParticleEmitter::m_GlobalIndices = new WORD[ParticleEmitter::m_GlobalIndicesCount];
int ni = 0;
int fi = 0;
for (int i=0; i<pc; ++i) {
ParticleEmitter::m_GlobalIndices[fi] = ni;
ParticleEmitter::m_GlobalIndices[fi+1] = ni+1;
ParticleEmitter::m_GlobalIndices[fi+2] = ni+2;
ParticleEmitter::m_GlobalIndices[fi+3] = ni;
ParticleEmitter::m_GlobalIndices[fi+4] = ni+2;
ParticleEmitter::m_GlobalIndices[fi+5] = ni+3;
fi += 6;
ni += 4;
}
}
XPtrStrided<VxUV> uvs(data->TexCoord);
XPtrStrided<VxVector4> positions(data->Positions);
XPtrStrided<DWORD> colors(data->Colors);
// Render States
// TMP TMP em->SetState(dev);
CK3dEntity *cam = dev->GetViewpoint();
VxMatrix oldmatrix = dev->GetWorldTransformationMatrix();
dev->SetWorldTransformationMatrix( cam->GetWorldMatrix() );
BOOL changeuv = FALSE;
float step = 1.0f;
int framehc = 0;
if(em->m_TextureFrameCount>1) {
changeuv = TRUE;
framehc = 1+(int)(sqrtf((float)(em->m_TextureFrameCount-1)));
step = 1.0f/framehc;
}
Particle* p = em->getParticles();
VxVector pos,old(0,0,0),vv(0,0,0),ww(0,0,0);
float u = 0.0f;
float v = 0.0f;
CK3dEntity* ent = (CK3dEntity*)dev->GetCKContext()->GetObject(em->m_Entity);
cam->InverseTransform(&old,&vv,ent);
const VxMatrix& worldCam = cam->GetWorldMatrix();
// move the reference point backward in camera space (don't work with z-buffer test, so added the choice for this offset in the settings)
old += Normalize(old)* em->m_RadialParticleOffset;
CK_ID oldtex = -1;
const VxMatrix& invCam = cam->GetInverseWorldMatrix();
VxMatrix finalMat = /*ent->GetWorldMatrix()*/invCam;
int fi = 0;
int ni = 0;
while(p) {
Vx3DMultiplyMatrixVector(&pos,finalMat,&p->pos);
vv.x = pos.x - old.x;
vv.y = pos.y - old.y;
vv.Normalize();
ww.x = -vv.y;
ww.y = vv.x;
// the colors
DWORD col = RGBAFTOCOLOR(&(p->m_Color));
// The texture coordinates
if(changeuv) {
v = 0.0f;
int c = p->m_CurrentFrame;
while(c >= framehc) {
v += step;
c -= framehc;
}
u=c*step;
}
// Filling vertices
*positions = pos+vv*p->m_Size+ww*p->m_Size;
++positions;
*colors = col;
++colors;
uvs->u = u;
uvs->v = v;
++uvs;
*positions = pos+vv*p->m_Size-ww*p->m_Size;
++positions;
*colors = col;
++colors;
uvs->u = u+step;
uvs->v = v;
++uvs;
*positions = old-vv*p->m_Size-ww*p->m_Size;
++positions;
*colors = col;
++colors;
uvs->u = u+step;
uvs->v = v+step;
++uvs;
*positions = old-vv*p->m_Size+ww*p->m_Size;
++positions;
*colors = col;
++colors;
uvs->u = u;
uvs->v = v+step;
++uvs;
p = p->next;
ni += 4;
}
em->DrawPrimitive(dev, FALSE, VX_TRIANGLELIST, ParticleEmitter::m_GlobalIndices, pc*6, data );
// we let write to the ZBuffer
dev->SetState(VXRENDERSTATE_ZWRITEENABLE , TRUE);
dev->SetWorldTransformationMatrix(oldmatrix);
return 1;
}
// TODO : change this callback : not very nice...
int
RenderParticles_O(CKRenderContext *dev,CKRenderObject *obj,void *arg)
{
// int todo_manage_reflection_in_objects;
CK3dEntity* mov = (CK3dEntity *)obj;
ParticleEmitter *em = (ParticleEmitter*)arg;
#ifdef USE_THR
ThreadWaitForCompletion(em,"Object");
#endif
if (!IsRenderingNeeded(em))
return CKBR_OK;
VxMatrix backup = mov->GetWorldMatrix();
CKGroup* group = (CKGroup*)dev->GetCKContext()->GetObject(em->m_Group);
if(!group) return 1;
CK3dEntity* ent;
CKMaterial* mat;
CKMesh* mesh;
Particle* p = em->getParticles();
VxVector dir,up,right;
int oc = group->GetObjectCount();
while(p) {
if(p->m_GroupIndex < oc) ent = (CK3dEntity*)group->GetObject(p->m_GroupIndex);
else ent = (CK3dEntity*)group->GetObject(0);
if(CKIsChildClassOf(ent,CKCID_3DENTITY)) {
mesh = ent->GetCurrentMesh();
if(mesh) {
mat = mesh->GetFaceMaterial(0);
if(mat) mat->SetDiffuse((p->m_Color));
ent->SetPosition(&(p->pos), NULL);
dir = Normalize(p->dir);
up.Set(0,1,0);
right = CrossProduct(up,dir);
up = CrossProduct(dir,right);
ent->SetOrientation(&dir,&up,&right);
if(p->m_Angle) {
ent->Rotate(&dir,p->m_Angle);
}
VxVector v(p->m_Size,p->m_Size,p->m_Size);
ent->SetScale(&v);
ent->Render( dev, FALSE );
}
}
p = p->next;
}
dev->SetWorldTransformationMatrix(backup);
return 1;
}
//////////////////////////////////////////////////////////////////////////
// PointSprite (Hardware) Render
int
RenderParticles_PS(CKRenderContext *dev,CKRenderObject *obj,void *arg)
{
CK3dEntity* mov = (CK3dEntity *)obj;
ParticleEmitter *em = (ParticleEmitter*)arg;
#ifdef USE_THR
ThreadWaitForCompletion(em,"PointSprite");
#endif
if (!IsRenderingNeeded(em))
return CKBR_OK;
const int VBUFFERSIZE = 4000;
int pc = em->particleCount;
VxDrawPrimitiveData* data = dev->GetDrawPrimitiveStructure(CKRST_DPFLAGS(CKRST_DP_TR_CL_VC|CKRST_DP_VBUFFER), (pc>VBUFFERSIZE)?VBUFFERSIZE:pc);
VxMatrix oldmatrix = dev->GetWorldTransformationMatrix();
// To manage reflection
dev->SetWorldTransformationMatrix(oldmatrix*mov->GetInverseWorldMatrix());
// we don't let write to the ZBuffer
// TMP TMP em->SetState(dev);
float averageSize = em->m_StartSize * 2.0f;
float minSize = 0.0f;
float maxSize = 4096.0f;
dev->SetState(VXRENDERSTATE_POINTSPRITEENABLE, TRUE);
dev->SetState(VXRENDERSTATE_POINTSIZE, *(DWORD*)&averageSize);
dev->SetState(VXRENDERSTATE_POINTSIZE_MIN,*(DWORD*)&minSize);
dev->SetState(VXRENDERSTATE_POINTSIZE_MAX,*(DWORD*)&maxSize);
dev->SetState(VXRENDERSTATE_POINTSCALEENABLE, TRUE);
float pointScaleA = 1.0f;
float pointScaleB = 0.0f;
float pointScaleC = 1.0f;
dev->SetState(VXRENDERSTATE_POINTSCALE_A,*(DWORD*)&pointScaleA);
dev->SetState(VXRENDERSTATE_POINTSCALE_B,*(DWORD*)&pointScaleB);
dev->SetState(VXRENDERSTATE_POINTSCALE_C,*(DWORD*)&pointScaleC);
Particle* p = em->getParticles();
XPtrStrided<VxVector4> positions(data->Positions);
XPtrStrided<DWORD> colors(data->Colors);
int np = 0;
int remaining = pc;
unsigned int (*ColorConvertor) (const VxColor*);
if (dev->GetRasterizerContext()->m_Driver->m_3DCaps.CKRasterizerSpecificCaps & CKRST_SPECIFICCAPS_VERTEXCOLORABGR)
ColorConvertor = &BGRAFTOCOLOR;
else
ColorConvertor = &RGBAFTOCOLOR;
while (p) {
*positions = p->pos;
*colors = (*ColorConvertor)(&(p->m_Color));
// next point
p = p->next;
++colors;
++positions;
++np;
if (np == VBUFFERSIZE) { // need to flush the vertex buffer
// The Primitive Drawing
em->DrawPrimitive(dev, FALSE, VX_POINTLIST, (WORD*)0, np, data);
remaining -= VBUFFERSIZE;
np = 0; // restart
if (remaining > 0) {
data = dev->GetDrawPrimitiveStructure((CKRST_DPFLAGS)(CKRST_DP_TR_CL_VCT|CKRST_DP_VBUFFER),(remaining>VBUFFERSIZE)?VBUFFERSIZE:remaining);
positions = data->Positions;
colors = data->Colors;
}
}
}
// The Primitive Drawing
if (remaining)
em->DrawPrimitive(dev, FALSE, VX_POINTLIST, (WORD*)NULL, remaining, data);
// we let write to the ZBuffer
dev->SetState(VXRENDERSTATE_ZWRITEENABLE , TRUE);
dev->SetState(VXRENDERSTATE_POINTSPRITEENABLE, FALSE);
dev->SetWorldTransformationMatrix(oldmatrix);
return 0;
}
// FixedPointSprite (Hardware) Render
int
RenderParticles_FPS(CKRenderContext *dev,CKRenderObject *obj,void *arg)
{
CK3dEntity* mov = (CK3dEntity *)obj;
ParticleEmitter *em = (ParticleEmitter*)arg;
#ifdef USE_THR
ThreadWaitForCompletion(em,"PointSprite");
#endif
if (!IsRenderingNeeded(em))
return CKBR_OK;
const int VBUFFERSIZE = 4000;
int pc = em->particleCount;
VxDrawPrimitiveData* data = dev->GetDrawPrimitiveStructure(CKRST_DPFLAGS(CKRST_DP_TR_CL_VC|CKRST_DP_VBUFFER), (pc>VBUFFERSIZE)?VBUFFERSIZE:pc);
VxMatrix oldmatrix = dev->GetWorldTransformationMatrix();
// To manage reflection
dev->SetWorldTransformationMatrix(oldmatrix*mov->GetInverseWorldMatrix());
// we don't let write to the ZBuffer
// TMP TMP em->SetState(dev);
float averageSize = em->m_StartSize * 2.0f;
float minSize = 0.0f;
float maxSize = 4096.0f;
dev->SetState(VXRENDERSTATE_POINTSPRITEENABLE, TRUE);
dev->SetState(VXRENDERSTATE_POINTSIZE, *(DWORD*)&averageSize);
dev->SetState(VXRENDERSTATE_POINTSIZE_MIN,*(DWORD*)&minSize);
dev->SetState(VXRENDERSTATE_POINTSIZE_MAX,*(DWORD*)&maxSize);
dev->SetState(VXRENDERSTATE_POINTSCALEENABLE, FALSE);
Particle* p = em->getParticles();
XPtrStrided<VxVector4> positions(data->Positions);
XPtrStrided<DWORD> colors(data->Colors);
int np = 0;
int remaining = pc;
unsigned int (*ColorConvertor) (const VxColor*);
if (dev->GetRasterizerContext()->m_Driver->m_3DCaps.CKRasterizerSpecificCaps & CKRST_SPECIFICCAPS_VERTEXCOLORABGR)
ColorConvertor = &BGRAFTOCOLOR;
else
ColorConvertor = &RGBAFTOCOLOR;
while (p) {
*positions = p->pos;
*colors = (*ColorConvertor)(&(p->m_Color));
// next point
p = p->next;
++colors;
++positions;
++np;
if (np == VBUFFERSIZE) { // need to flush the vertex buffer
// The Primitive Drawing
em->DrawPrimitive(dev, FALSE, VX_POINTLIST, (WORD*)0, np, data);
remaining -= VBUFFERSIZE;
np = 0; // restart
if (remaining > 0) {
data = dev->GetDrawPrimitiveStructure((CKRST_DPFLAGS)(CKRST_DP_TR_CL_VCT|CKRST_DP_VBUFFER),(remaining>VBUFFERSIZE)?VBUFFERSIZE:remaining);
positions = data->Positions;
colors = data->Colors;
}
}
}
// The Primitive Drawing
if (remaining)
em->DrawPrimitive(dev, FALSE, VX_POINTLIST, (WORD*)NULL, remaining, data);
// we let write to the ZBuffer
dev->SetState(VXRENDERSTATE_ZWRITEENABLE , TRUE);
dev->SetState(VXRENDERSTATE_POINTSPRITEENABLE, FALSE);
dev->SetWorldTransformationMatrix(oldmatrix);
return 0;
}
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