/// @par
///
/// Spans will only be added for triangles that overlap the heightfield grid.
///
/// @see rcHeightfield
bool rcRasterizeTriangles(rcContext* ctx, const float* verts, const unsigned char* areas, const int nt,
rcHeightfield& solid, const int flagMergeThr)
{
rcAssert(ctx);
rcScopedTimer timer(ctx, RC_TIMER_RASTERIZE_TRIANGLES);
const float ics = 1.0f/solid.cs;
const float ich = 1.0f/solid.ch;
// Rasterize triangles.
for (int i = 0; i < nt; ++i)
{
const float* v0 = &verts[(i*3+0)*3];
const float* v1 = &verts[(i*3+1)*3];
const float* v2 = &verts[(i*3+2)*3];
// Rasterize.
if (!rasterizeTri(v0, v1, v2, areas[i], solid, solid.bmin, solid.bmax, solid.cs, ics, ich, flagMergeThr))
{
ctx->log(RC_LOG_ERROR, "rcRasterizeTriangles: Out of memory.");
return false;
}
}
return true;
}
void PipeLine::drawTriMesh(void){
//FIXME visual culling
VertexIterator::TriangleIterator allTriangles(curMesh_->triangleIterator());
for(auto& i:allTriangles ){
Float4* f1=i.f1_;
Float4* f2=i.f2_;
Float4* f3=i.f3_;
//back face cull
if( cullStateEnabled_ && backFaceCull(*f1,*f2,*f3) )
continue;
assemblyV.reset();
assemblyV.clone(f1,0);
assemblyV.clone(f2,1);
assemblyV.clone(f3,2);
// clip in clipspace lerp
/*
剪裁空间内插值求交点 不需要透视矫正
*/
int ret = clipTriangleInClipSpace();
if(ret == 3){
// Clip space TO screen space
assemblyV.toScreen(uniforms_->viewPort_,assemblyV.NOTRICLIP);
rasterizeTri(0,1,2);
}
else if(ret == 4){
// Clip space TO screen space
assemblyV.toScreen(uniforms_->viewPort_,assemblyV.TRICLIPED);
rasterizeTri(0,1,2);
rasterizeTri(3,0,2);
}
else // ret == 0
continue;
}
}
/// @par
///
/// No spans will be added if the triangle does not overlap the heightfield grid.
///
/// @see rcHeightfield
void rcRasterizeTriangle(rcContext* ctx, const float* v0, const float* v1, const float* v2,
const unsigned char area, rcHeightfield& solid,
const int flagMergeThr)
{
rcAssert(ctx);
ctx->startTimer(RC_TIMER_RASTERIZE_TRIANGLES);
const float ics = 1.0f/solid.cs;
const float ich = 1.0f/solid.ch;
rasterizeTri(v0, v1, v2, area, solid, solid.bmin, solid.bmax, solid.cs, ics, ich, flagMergeThr);
ctx->stopTimer(RC_TIMER_RASTERIZE_TRIANGLES);
}
void rcRasterizeTriangle(const float* v0, const float* v1, const float* v2,
const unsigned char area, rcHeightfield& solid,
const int flagMergeThr)
{
rcTimeVal startTime = rcGetPerformanceTimer();
const float ics = 1.0f/solid.cs;
const float ich = 1.0f/solid.ch;
rasterizeTri(v0, v1, v2, area, solid, solid.bmin, solid.bmax, solid.cs, ics, ich, flagMergeThr);
rcTimeVal endTime = rcGetPerformanceTimer();
if (rcGetBuildTimes())
rcGetBuildTimes()->rasterizeTriangles += rcGetDeltaTimeUsec(startTime, endTime);
}
/// @par
///
/// No spans will be added if the triangle does not overlap the heightfield grid.
///
/// @see rcHeightfield
bool rcRasterizeTriangle(rcContext* ctx, const float* v0, const float* v1, const float* v2,
const unsigned char area, rcHeightfield& solid,
const int flagMergeThr)
{
rcAssert(ctx);
rcScopedTimer timer(ctx, RC_TIMER_RASTERIZE_TRIANGLES);
const float ics = 1.0f/solid.cs;
const float ich = 1.0f/solid.ch;
if (!rasterizeTri(v0, v1, v2, area, solid, solid.bmin, solid.bmax, solid.cs, ics, ich, flagMergeThr))
{
ctx->log(RC_LOG_ERROR, "rcRasterizeTriangle: Out of memory.");
return false;
}
return true;
}
/// @par
///
/// Spans will only be added for triangles that overlap the heightfield grid.
///
/// @see rcHeightfield
void rcRasterizeTriangles(rcContext* ctx, const float* verts, const unsigned char* areas, const int nt,
rcHeightfield& solid, const int flagMergeThr)
{
rcAssert(ctx);
ctx->startTimer(RC_TIMER_RASTERIZE_TRIANGLES);
const float ics = 1.0f/solid.cs;
const float ich = 1.0f/solid.ch;
// Rasterize triangles.
for (int i = 0; i < nt; ++i)
{
const float* v0 = &verts[(i*3+0)*3];
const float* v1 = &verts[(i*3+1)*3];
const float* v2 = &verts[(i*3+2)*3];
// Rasterize.
rasterizeTri(v0, v1, v2, areas[i], solid, solid.bmin, solid.bmax, solid.cs, ics, ich, flagMergeThr);
}
ctx->stopTimer(RC_TIMER_RASTERIZE_TRIANGLES);
}
void rcRasterizeTriangles(const float* verts, const unsigned char* areas, const int nt,
rcHeightfield& solid, const int flagMergeThr)
{
rcTimeVal startTime = rcGetPerformanceTimer();
const float ics = 1.0f/solid.cs;
const float ich = 1.0f/solid.ch;
// Rasterize triangles.
for (int i = 0; i < nt; ++i)
{
const float* v0 = &verts[(i*3+0)*3];
const float* v1 = &verts[(i*3+1)*3];
const float* v2 = &verts[(i*3+2)*3];
// Rasterize.
rasterizeTri(v0, v1, v2, areas[i], solid, solid.bmin, solid.bmax, solid.cs, ics, ich, flagMergeThr);
}
rcTimeVal endTime = rcGetPerformanceTimer();
if (rcGetBuildTimes())
rcGetBuildTimes()->rasterizeTriangles += rcGetDeltaTimeUsec(startTime, endTime);
}