//create a vertex buffer for efficiently rendering cubes
LLVertexBuffer* ll_create_cube_vb(U32 type_mask, U32 usage)
{
LLVertexBuffer* ret = new LLVertexBuffer(type_mask, usage);
ret->allocateBuffer(8, 64, true);
LLStrider<LLVector3> pos;
LLStrider<U16> idx;
ret->getVertexStrider(pos);
ret->getIndexStrider(idx);
pos[0] = LLVector3(-1,-1,-1);
pos[1] = LLVector3(-1,-1, 1);
pos[2] = LLVector3(-1, 1,-1);
pos[3] = LLVector3(-1, 1, 1);
pos[4] = LLVector3( 1,-1,-1);
pos[5] = LLVector3( 1,-1, 1);
pos[6] = LLVector3( 1, 1,-1);
pos[7] = LLVector3( 1, 1, 1);
for (U32 i = 0; i < 64; i++)
{
idx[i] = sOcclusionIndices[i];
}
ret->flush();
return ret;
}
void create_vertex_buffers_from_model(LLModel* model, std::vector<LLPointer <LLVertexBuffer> >& vertex_buffers)
{
#if 0 //VECTORIZE THIS ?
vertex_buffers.clear();
for (S32 i = 0; i < model->getNumVolumeFaces(); ++i)
{
const LLVolumeFace &vf = model->getVolumeFace(i);
U32 num_vertices = vf.mNumVertices;
U32 num_indices = vf.mNumIndices;
if (!num_vertices || ! num_indices)
{
continue;
}
LLVertexBuffer* vb =
new LLVertexBuffer(LLVertexBuffer::MAP_VERTEX | LLVertexBuffer::MAP_NORMAL | LLVertexBuffer::MAP_TEXCOORD0, 0);
vb->allocateBuffer(num_vertices, num_indices, TRUE);
LLStrider<LLVector3> vertex_strider;
LLStrider<LLVector3> normal_strider;
LLStrider<LLVector2> tc_strider;
LLStrider<U16> index_strider;
vb->getVertexStrider(vertex_strider);
vb->getNormalStrider(normal_strider);
vb->getTexCoord0Strider(tc_strider);
vb->getIndexStrider(index_strider);
// build vertices and normals
for (U32 i = 0; (S32)i < num_vertices; i++)
{
*(vertex_strider++) = vf.mVertices[i].mPosition;
*(tc_strider++) = vf.mVertices[i].mTexCoord;
LLVector3 normal = vf.mVertices[i].mNormal;
normal.normalize();
*(normal_strider++) = normal;
}
// build indices
for (U32 i = 0; i < num_indices; i++)
{
*(index_strider++) = vf.mIndices[i];
}
vertex_buffers.push_back(vb);
}
#endif
}
//split every triangle in LLVertexBuffer into even fourths (assumes index triangle lists)
void subdivide(LLVertexBuffer& in, LLVertexBuffer* ret)
{
S32 tri_in = in.getNumIndices()/3;
ret->allocateBuffer(tri_in*4*3, tri_in*4*3, TRUE);
LLStrider<LLVector3> vin, vout;
LLStrider<U16> indin, indout;
ret->getVertexStrider(vout);
in.getVertexStrider(vin);
ret->getIndexStrider(indout);
in.getIndexStrider(indin);
for (S32 i = 0; i < tri_in; i++)
{
LLVector3 v0 = vin[*indin++];
LLVector3 v1 = vin[*indin++];
LLVector3 v2 = vin[*indin++];
LLVector3 v3 = (v0 + v1) * 0.5f;
LLVector3 v4 = (v1 + v2) * 0.5f;
LLVector3 v5 = (v2 + v0) * 0.5f;
*vout++ = v0;
*vout++ = v3;
*vout++ = v5;
*vout++ = v3;
*vout++ = v4;
*vout++ = v5;
*vout++ = v3;
*vout++ = v1;
*vout++ = v4;
*vout++ = v5;
*vout++ = v4;
*vout++ = v2;
}
for (S32 i = 0; i < ret->getNumIndices(); i++)
{
*indout++ = i;
}
}
void chop(LLVertexBuffer& in, LLVertexBuffer* out)
{
//chop off all triangles below horizon
F32 d = LLWLParamManager::sParamMgr->getDomeOffset() * LLWLParamManager::sParamMgr->getDomeRadius();
std::vector<LLVector3> vert;
LLStrider<LLVector3> vin;
LLStrider<U16> index;
in.getVertexStrider(vin);
in.getIndexStrider(index);
U32 tri_count = in.getNumIndices()/3;
for (U32 i = 0; i < tri_count; i++)
{
LLVector3 &v1 = vin[index[i*3+0]];
LLVector3 &v2 = vin[index[i*3+1]];
LLVector3 &v3 = vin[index[i*3+2]];
if (v1.mV[1] > d ||
v2.mV[1] > d ||
v3.mV[1] > d)
{
v1.mV[1] = llmax(v1.mV[1], d);
v2.mV[1] = llmax(v1.mV[1], d);
v3.mV[1] = llmax(v1.mV[1], d);
vert.push_back(v1);
vert.push_back(v2);
vert.push_back(v3);
}
}
out->allocateBuffer(vert.size(), vert.size(), TRUE);
LLStrider<LLVector3> vout;
out->getVertexStrider(vout);
out->getIndexStrider(index);
for (U32 i = 0; i < vert.size(); i++)
{
*vout++ = vert[i];
*index++ = i;
}
}
void LLTerrainPartition::getGeometry(LLSpatialGroup* group)
{
LLFastTimer ftm(FTM_REBUILD_TERRAIN_VB);
LLVertexBuffer* buffer = group->mVertexBuffer;
//get vertex buffer striders
LLStrider<LLVector3> vertices;
LLStrider<LLVector3> normals;
LLStrider<LLVector2> texcoords2;
LLStrider<LLVector2> texcoords;
LLStrider<U16> indices;
llassert_always(buffer->getVertexStrider(vertices));
llassert_always(buffer->getNormalStrider(normals));
llassert_always(buffer->getTexCoord0Strider(texcoords));
llassert_always(buffer->getTexCoord1Strider(texcoords2));
llassert_always(buffer->getIndexStrider(indices));
U32 indices_index = 0;
U32 index_offset = 0;
for (std::vector<LLFace*>::iterator i = mFaceList.begin(); i != mFaceList.end(); ++i)
{
LLFace* facep = *i;
facep->setIndicesIndex(indices_index);
facep->setGeomIndex(index_offset);
facep->setVertexBuffer(buffer);
LLVOSurfacePatch* patchp = (LLVOSurfacePatch*) facep->getViewerObject();
patchp->getGeometry(vertices, normals, texcoords, texcoords2, indices);
indices_index += facep->getIndicesCount();
index_offset += facep->getGeomCount();
}
buffer->flush();
mFaceList.clear();
}
void LLParticlePartition::getGeometry(LLSpatialGroup* group)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
LLFastTimer ftm(mDrawableType == LLPipeline::RENDER_TYPE_GRASS ?
LLFastTimer::FTM_REBUILD_GRASS_VB :
LLFastTimer::FTM_REBUILD_PARTICLE_VB);
std::sort(mFaceList.begin(), mFaceList.end(), LLFace::CompareDistanceGreater());
U32 index_count = 0;
U32 vertex_count = 0;
group->clearDrawMap();
LLVertexBuffer* buffer = group->mVertexBuffer;
LLStrider<U16> indicesp;
LLStrider<LLVector3> verticesp;
LLStrider<LLVector3> normalsp;
LLStrider<LLVector2> texcoordsp;
LLStrider<LLColor4U> colorsp;
buffer->getVertexStrider(verticesp);
buffer->getNormalStrider(normalsp);
buffer->getColorStrider(colorsp);
buffer->getTexCoord0Strider(texcoordsp);
buffer->getIndexStrider(indicesp);
LLSpatialGroup::drawmap_elem_t& draw_vec = group->mDrawMap[mRenderPass];
for (std::vector<LLFace*>::iterator i = mFaceList.begin(); i != mFaceList.end(); ++i)
{
LLFace* facep = *i;
LLAlphaObject* object = (LLAlphaObject*) facep->getViewerObject();
facep->setGeomIndex(vertex_count);
facep->setIndicesIndex(index_count);
facep->mVertexBuffer = buffer;
facep->setPoolType(LLDrawPool::POOL_ALPHA);
object->getGeometry(facep->getTEOffset(), verticesp, normalsp, texcoordsp, colorsp, indicesp);
vertex_count += facep->getGeomCount();
index_count += facep->getIndicesCount();
S32 idx = draw_vec.size()-1;
BOOL fullbright = facep->isState(LLFace::FULLBRIGHT);
F32 vsize = facep->getVirtualSize();
if (idx >= 0 && draw_vec[idx]->mEnd == facep->getGeomIndex()-1 &&
draw_vec[idx]->mTexture == facep->getTexture() &&
(U16) (draw_vec[idx]->mEnd - draw_vec[idx]->mStart + facep->getGeomCount()) <= (U32) gGLManager.mGLMaxVertexRange &&
//draw_vec[idx]->mCount + facep->getIndicesCount() <= (U32) gGLManager.mGLMaxIndexRange &&
draw_vec[idx]->mEnd - draw_vec[idx]->mStart + facep->getGeomCount() < 4096 &&
draw_vec[idx]->mFullbright == fullbright)
{
draw_vec[idx]->mCount += facep->getIndicesCount();
draw_vec[idx]->mEnd += facep->getGeomCount();
draw_vec[idx]->mVSize = llmax(draw_vec[idx]->mVSize, vsize);
}
else
{
U32 start = facep->getGeomIndex();
U32 end = start + facep->getGeomCount()-1;
U32 offset = facep->getIndicesStart();
U32 count = facep->getIndicesCount();
LLDrawInfo* info = new LLDrawInfo(start,end,count,offset,facep->getTexture(), buffer, fullbright);
info->mExtents[0] = group->mObjectExtents[0];
info->mExtents[1] = group->mObjectExtents[1];
info->mVSize = vsize;
draw_vec.push_back(info);
//for alpha sorting
facep->setDrawInfo(info);
}
}
buffer->setBuffer(0);
mFaceList.clear();
}
BOOL LLVOWLSky::updateGeometry(LLDrawable * drawable)
{
LLFastTimer ftm(FTM_GEO_SKY);
LLStrider<LLVector3> vertices;
LLStrider<LLVector2> texCoords;
LLStrider<U16> indices;
#if DOME_SLICES
{
mFanVerts = new LLVertexBuffer(LLDrawPoolWLSky::SKY_VERTEX_DATA_MASK, GL_STATIC_DRAW_ARB);
mFanVerts->allocateBuffer(getFanNumVerts(), getFanNumIndices(), TRUE);
BOOL success = mFanVerts->getVertexStrider(vertices)
&& mFanVerts->getTexCoord0Strider(texCoords)
&& mFanVerts->getIndexStrider(indices);
if(!success)
{
llerrs << "Failed updating WindLight sky geometry." << llendl;
}
buildFanBuffer(vertices, texCoords, indices);
mFanVerts->flush();
}
{
const U32 max_buffer_bytes = gSavedSettings.getS32("RenderMaxVBOSize")*1024;
const U32 data_mask = LLDrawPoolWLSky::SKY_VERTEX_DATA_MASK;
const U32 max_verts = max_buffer_bytes / LLVertexBuffer::calcVertexSize(data_mask);
const U32 total_stacks = getNumStacks();
const U32 verts_per_stack = getNumSlices();
// each seg has to have one more row of verts than it has stacks
// then round down
const U32 stacks_per_seg = (max_verts - verts_per_stack) / verts_per_stack;
// round up to a whole number of segments
const U32 strips_segments = (total_stacks+stacks_per_seg-1) / stacks_per_seg;
llinfos << "WL Skydome strips in " << strips_segments << " batches." << llendl;
mStripsVerts.resize(strips_segments, NULL);
LLTimer timer;
timer.start();
for (U32 i = 0; i < strips_segments ;++i)
{
LLVertexBuffer * segment = new LLVertexBuffer(LLDrawPoolWLSky::SKY_VERTEX_DATA_MASK, GL_STATIC_DRAW_ARB);
mStripsVerts[i] = segment;
U32 num_stacks_this_seg = stacks_per_seg;
if ((i == strips_segments - 1) && (total_stacks % stacks_per_seg) != 0)
{
// for the last buffer only allocate what we'll use
num_stacks_this_seg = total_stacks % stacks_per_seg;
}
// figure out what range of the sky we're filling
const U32 begin_stack = i * stacks_per_seg;
const U32 end_stack = begin_stack + num_stacks_this_seg;
llassert(end_stack <= total_stacks);
const U32 num_verts_this_seg = verts_per_stack * (num_stacks_this_seg+1);
llassert(num_verts_this_seg <= max_verts);
const U32 num_indices_this_seg = 1+num_stacks_this_seg*(2+2*verts_per_stack);
llassert(num_indices_this_seg * sizeof(U16) <= max_buffer_bytes);
segment->allocateBuffer(num_verts_this_seg, num_indices_this_seg, TRUE);
// lock the buffer
BOOL success = segment->getVertexStrider(vertices)
&& segment->getTexCoord0Strider(texCoords)
&& segment->getIndexStrider(indices);
if(!success)
{
llerrs << "Failed updating WindLight sky geometry." << llendl;
}
// fill it
buildStripsBuffer(begin_stack, end_stack, vertices, texCoords, indices);
// and unlock the buffer
segment->flush();
}
llinfos << "completed in " << llformat("%.2f", timer.getElapsedTimeF32()) << "seconds" << llendl;
}
#else
mStripsVerts = new LLVertexBuffer(LLDrawPoolWLSky::SKY_VERTEX_DATA_MASK, GL_STATIC_DRAW_ARB);
const F32 RADIUS = LLWLParamManager::sParamMgr->getDomeRadius();
LLPointer<LLVertexBuffer> temp = new LLVertexBuffer(LLVertexBuffer::MAP_VERTEX, 0);
temp->allocateBuffer(12, 60, TRUE);
BOOL success = temp->getVertexStrider(vertices)
&& temp->getIndexStrider(indices);
if (success)
{
for (U32 i = 0; i < 12; i++)
{
*vertices++ = icosahedron_vert[i];
}
for (U32 i = 0; i < 60; i++)
{
*indices++ = icosahedron_ind[i];
}
}
LLPointer<LLVertexBuffer> temp2;
for (U32 i = 0; i < 8; i++)
{
temp2 = new LLVertexBuffer(LLVertexBuffer::MAP_VERTEX, 0);
subdivide(*temp, temp2);
temp = temp2;
}
temp->getVertexStrider(vertices);
for (S32 i = 0; i < temp->getNumVerts(); i++)
{
LLVector3 v = vertices[i];
v.normVec();
vertices[i] = v*RADIUS;
}
temp2 = new LLVertexBuffer(LLVertexBuffer::MAP_VERTEX, 0);
chop(*temp, temp2);
mStripsVerts->allocateBuffer(temp2->getNumVerts(), temp2->getNumIndices(), TRUE);
success = mStripsVerts->getVertexStrider(vertices)
&& mStripsVerts->getTexCoordStrider(texCoords)
&& mStripsVerts->getIndexStrider(indices);
LLStrider<LLVector3> v;
temp2->getVertexStrider(v);
LLStrider<U16> ind;
temp2->getIndexStrider(ind);
if (success)
{
for (S32 i = 0; i < temp2->getNumVerts(); ++i)
{
LLVector3 vert = *v++;
vert.normVec();
F32 z0 = vert.mV[2];
F32 x0 = vert.mV[0];
vert *= RADIUS;
*vertices++ = vert;
*texCoords++ = LLVector2((-z0 + 1.f) / 2.f, (-x0 + 1.f) / 2.f);
}
for (S32 i = 0; i < temp2->getNumIndices(); ++i)
{
*indices++ = *ind++;
}
}
mStripsVerts->flush();
#endif
updateStarColors();
updateStarGeometry(drawable);
LLPipeline::sCompiles++;
return TRUE;
}
void LLVOTree::updateMesh()
{
LLMatrix4 matrix;
// Translate to tree base HACK - adjustment in Z plants tree underground
const LLVector3 &pos_agent = getPositionAgent();
//gGL.translatef(pos_agent.mV[VX], pos_agent.mV[VY], pos_agent.mV[VZ] - 0.1f);
LLMatrix4 trans_mat;
trans_mat.setTranslation(pos_agent.mV[VX], pos_agent.mV[VY], pos_agent.mV[VZ] - 0.1f);
trans_mat *= matrix;
// Rotate to tree position and bend for current trunk/wind
// Note that trunk stiffness controls the amount of bend at the trunk as
// opposed to the crown of the tree
//
const F32 TRUNK_STIFF = 22.f;
LLQuaternion rot =
LLQuaternion(mTrunkBend.magVec()*TRUNK_STIFF*DEG_TO_RAD, LLVector4(mTrunkBend.mV[VX], mTrunkBend.mV[VY], 0)) *
LLQuaternion(90.f*DEG_TO_RAD, LLVector4(0,0,1)) *
getRotation();
LLMatrix4 rot_mat(rot);
rot_mat *= trans_mat;
F32 radius = getScale().magVec()*0.05f;
LLMatrix4 scale_mat;
scale_mat.mMatrix[0][0] =
scale_mat.mMatrix[1][1] =
scale_mat.mMatrix[2][2] = radius;
scale_mat *= rot_mat;
// const F32 THRESH_ANGLE_FOR_BILLBOARD = 15.f;
// const F32 BLEND_RANGE_FOR_BILLBOARD = 3.f;
F32 droop = mDroop + 25.f*(1.f - mTrunkBend.magVec());
S32 stop_depth = 0;
F32 alpha = 1.0;
U32 vert_count = 0;
U32 index_count = 0;
calcNumVerts(vert_count, index_count, mTrunkLOD, stop_depth, mDepth, mTrunkDepth, mBranches);
LLFace* facep = mDrawable->getFace(0);
LLVertexBuffer* buff = new LLVertexBuffer(LLDrawPoolTree::VERTEX_DATA_MASK, GL_STATIC_DRAW_ARB);
buff->allocateBuffer(vert_count, index_count, TRUE);
facep->setVertexBuffer(buff);
LLStrider<LLVector3> vertices;
LLStrider<LLVector3> normals;
LLStrider<LLVector2> tex_coords;
LLStrider<U16> indices;
U16 idx_offset = 0;
buff->getVertexStrider(vertices);
buff->getNormalStrider(normals);
buff->getTexCoord0Strider(tex_coords);
buff->getIndexStrider(indices);
genBranchPipeline(vertices, normals, tex_coords, indices, idx_offset, scale_mat, mTrunkLOD, stop_depth, mDepth, mTrunkDepth, 1.0, mTwist, droop, mBranches, alpha);
mReferenceBuffer->flush();
buff->flush();
}
