diff options
Diffstat (limited to 'indra/newview/llvowlsky.cpp')
-rw-r--r-- | indra/newview/llvowlsky.cpp | 714 |
1 files changed, 357 insertions, 357 deletions
diff --git a/indra/newview/llvowlsky.cpp b/indra/newview/llvowlsky.cpp index 9b2871c6a9..776d65487c 100644 --- a/indra/newview/llvowlsky.cpp +++ b/indra/newview/llvowlsky.cpp @@ -1,25 +1,25 @@ -/** +/** * @file llvowlsky.cpp * @brief LLVOWLSky class implementation * * $LicenseInfo:firstyear=2007&license=viewerlgpl$ * Second Life Viewer Source Code * Copyright (C) 2010, Linden Research, Inc. - * + * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License only. - * + * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. - * + * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * + * * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA * $/LicenseInfo$ */ @@ -41,60 +41,60 @@ constexpr U32 MAX_SKY_DETAIL = 180; inline U32 LLVOWLSky::getNumStacks(void) { - return llmin(MAX_SKY_DETAIL, llmax(MIN_SKY_DETAIL, gSavedSettings.getU32("WLSkyDetail"))); + return llmin(MAX_SKY_DETAIL, llmax(MIN_SKY_DETAIL, gSavedSettings.getU32("WLSkyDetail"))); } inline U32 LLVOWLSky::getNumSlices(void) { - return 2 * llmin(MAX_SKY_DETAIL, llmax(MIN_SKY_DETAIL, gSavedSettings.getU32("WLSkyDetail"))); + return 2 * llmin(MAX_SKY_DETAIL, llmax(MIN_SKY_DETAIL, gSavedSettings.getU32("WLSkyDetail"))); } inline U32 LLVOWLSky::getStripsNumVerts(void) { - return (getNumStacks() - 1) * getNumSlices(); + return (getNumStacks() - 1) * getNumSlices(); } inline U32 LLVOWLSky::getStripsNumIndices(void) { - return 2 * ((getNumStacks() - 2) * (getNumSlices() + 1)) + 1 ; + return 2 * ((getNumStacks() - 2) * (getNumSlices() + 1)) + 1 ; } inline U32 LLVOWLSky::getStarsNumVerts(void) { - return 1000; + return 1000; } inline U32 LLVOWLSky::getStarsNumIndices(void) { - return 1000; + return 1000; } LLVOWLSky::LLVOWLSky(const LLUUID &id, const LLPCode pcode, LLViewerRegion *regionp) - : LLStaticViewerObject(id, pcode, regionp, TRUE) + : LLStaticViewerObject(id, pcode, regionp, TRUE) { - initStars(); + initStars(); } void LLVOWLSky::idleUpdate(LLAgent &agent, const F64 &time) { - + } BOOL LLVOWLSky::isActive(void) const { - return FALSE; + return FALSE; } LLDrawable * LLVOWLSky::createDrawable(LLPipeline * pipeline) { - pipeline->allocDrawable(this); + pipeline->allocDrawable(this); - //LLDrawPoolWLSky *poolp = static_cast<LLDrawPoolWLSky *>( - gPipeline.getPool(LLDrawPool::POOL_WL_SKY); + //LLDrawPoolWLSky *poolp = static_cast<LLDrawPoolWLSky *>( + gPipeline.getPool(LLDrawPool::POOL_WL_SKY); - mDrawable->setRenderType(LLPipeline::RENDER_TYPE_WL_SKY); + mDrawable->setRenderType(LLPipeline::RENDER_TYPE_WL_SKY); - return mDrawable; + return mDrawable; } // a tiny helper function for controlling the sky dome tesselation. @@ -103,274 +103,274 @@ inline F32 calcPhi(const U32 &i, const F32 &reciprocal_num_stacks) // Calc: PI/8 * 1-((1-t^4)*(1-t^4)) { 0<t<1 } // Demos: \pi/8*\left(1-((1-x^{4})*(1-x^{4}))\right)\ \left\{0<x\le1\right\} - // i should range from [0..SKY_STACKS] so t will range from [0.f .. 1.f] - F32 t = float(i) * reciprocal_num_stacks; //SL-16127: remove: / float(getNumStacks()); + // i should range from [0..SKY_STACKS] so t will range from [0.f .. 1.f] + F32 t = float(i) * reciprocal_num_stacks; //SL-16127: remove: / float(getNumStacks()); - // ^4 the parameter of the tesselation to bias things toward 0 (the dome's apex) - t *= t; - t *= t; + // ^4 the parameter of the tesselation to bias things toward 0 (the dome's apex) + t *= t; + t *= t; - // invert and square the parameter of the tesselation to bias things toward 1 (the horizon) - t = 1.f - t; - t = t*t; - t = 1.f - t; + // invert and square the parameter of the tesselation to bias things toward 1 (the horizon) + t = 1.f - t; + t = t*t; + t = 1.f - t; - return (F_PI / 8.f) * t; + return (F_PI / 8.f) * t; } void LLVOWLSky::resetVertexBuffers() { - mStripsVerts.clear(); - mStarsVerts = nullptr; + mStripsVerts.clear(); + mStarsVerts = nullptr; mFsSkyVerts = nullptr; - gPipeline.markRebuild(mDrawable, LLDrawable::REBUILD_ALL); + gPipeline.markRebuild(mDrawable, LLDrawable::REBUILD_ALL); } - + void LLVOWLSky::cleanupGL() { - mStripsVerts.clear(); - mStarsVerts = nullptr; + mStripsVerts.clear(); + mStarsVerts = nullptr; mFsSkyVerts = nullptr; - LLDrawPoolWLSky::cleanupGL(); + LLDrawPoolWLSky::cleanupGL(); } void LLVOWLSky::restoreGL() { - LLDrawPoolWLSky::restoreGL(); - gPipeline.markRebuild(mDrawable, LLDrawable::REBUILD_ALL); + LLDrawPoolWLSky::restoreGL(); + gPipeline.markRebuild(mDrawable, LLDrawable::REBUILD_ALL); } BOOL LLVOWLSky::updateGeometry(LLDrawable * drawable) { LL_PROFILE_ZONE_SCOPED; - LLStrider<LLVector3> vertices; - LLStrider<LLVector2> texCoords; - LLStrider<U16> indices; + LLStrider<LLVector3> vertices; + LLStrider<LLVector2> texCoords; + LLStrider<U16> indices; if (mFsSkyVerts.isNull()) { mFsSkyVerts = new LLVertexBuffer(LLDrawPoolWLSky::ADV_ATMO_SKY_VERTEX_DATA_MASK); if (!mFsSkyVerts->allocateBuffer(4, 6)) - { - LL_WARNS() << "Failed to allocate Vertex Buffer on full screen sky update" << LL_ENDL; - } + { + LL_WARNS() << "Failed to allocate Vertex Buffer on full screen sky update" << LL_ENDL; + } - BOOL success = mFsSkyVerts->getVertexStrider(vertices) - && mFsSkyVerts->getTexCoord0Strider(texCoords) - && mFsSkyVerts->getIndexStrider(indices); + BOOL success = mFsSkyVerts->getVertexStrider(vertices) + && mFsSkyVerts->getTexCoord0Strider(texCoords) + && mFsSkyVerts->getIndexStrider(indices); - if(!success) - { - LL_ERRS() << "Failed updating WindLight fullscreen sky geometry." << LL_ENDL; - } + if(!success) + { + LL_ERRS() << "Failed updating WindLight fullscreen sky geometry." << LL_ENDL; + } *vertices++ = LLVector3(-1.0f, -1.0f, 0.0f); *vertices++ = LLVector3( 1.0f, -1.0f, 0.0f); *vertices++ = LLVector3(-1.0f, 1.0f, 0.0f); *vertices++ = LLVector3( 1.0f, 1.0f, 0.0f); - *texCoords++ = LLVector2(0.0f, 0.0f); + *texCoords++ = LLVector2(0.0f, 0.0f); *texCoords++ = LLVector2(1.0f, 0.0f); *texCoords++ = LLVector2(0.0f, 1.0f); *texCoords++ = LLVector2(1.0f, 1.0f); - *indices++ = 0; - *indices++ = 1; - *indices++ = 2; + *indices++ = 0; + *indices++ = 1; + *indices++ = 2; *indices++ = 1; - *indices++ = 3; - *indices++ = 2; + *indices++ = 3; + *indices++ = 2; mFsSkyVerts->unmapBuffer(); } - { + { const F32 dome_radius = LLEnvironment::instance().getCurrentSky()->getDomeRadius(); - 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 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 total_stacks = getNumStacks(); - const U32 verts_per_stack = getNumSlices(); + 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; + // 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; + // round up to a whole number of segments + const U32 strips_segments = (total_stacks+stacks_per_seg-1) / stacks_per_seg; - mStripsVerts.resize(strips_segments, NULL); + mStripsVerts.resize(strips_segments, NULL); #if RELEASE_SHOW_DEBUG - LL_INFOS() << "WL Skydome strips in " << strips_segments << " batches." << LL_ENDL; + LL_INFOS() << "WL Skydome strips in " << strips_segments << " batches." << LL_ENDL; - LLTimer timer; - timer.start(); + LLTimer timer; + timer.start(); #endif - for (U32 i = 0; i < strips_segments ;++i) - { - LLVertexBuffer * segment = new LLVertexBuffer(LLDrawPoolWLSky::SKY_VERTEX_DATA_MASK); - mStripsVerts[i] = segment; + for (U32 i = 0; i < strips_segments ;++i) + { + LLVertexBuffer * segment = new LLVertexBuffer(LLDrawPoolWLSky::SKY_VERTEX_DATA_MASK); + 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; - } + 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); + // 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_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); + 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); - bool allocated = segment->allocateBuffer(num_verts_this_seg, num_indices_this_seg); + bool allocated = segment->allocateBuffer(num_verts_this_seg, num_indices_this_seg); #if RELEASE_SHOW_WARNS - if( !allocated ) - { - LL_WARNS() << "Failed to allocate Vertex Buffer on update to " - << num_verts_this_seg << " vertices and " - << num_indices_this_seg << " indices" << LL_ENDL; - } + if( !allocated ) + { + LL_WARNS() << "Failed to allocate Vertex Buffer on update to " + << num_verts_this_seg << " vertices and " + << num_indices_this_seg << " indices" << LL_ENDL; + } #else - (void) allocated; + (void) allocated; #endif - // lock the buffer - BOOL success = segment->getVertexStrider(vertices) - && segment->getTexCoord0Strider(texCoords) - && segment->getIndexStrider(indices); + // lock the buffer + BOOL success = segment->getVertexStrider(vertices) + && segment->getTexCoord0Strider(texCoords) + && segment->getIndexStrider(indices); #if RELEASE_SHOW_DEBUG - if(!success) - { - LL_ERRS() << "Failed updating WindLight sky geometry." << LL_ENDL; - } + if(!success) + { + LL_ERRS() << "Failed updating WindLight sky geometry." << LL_ENDL; + } #else - (void) success; + (void) success; #endif - // fill it - buildStripsBuffer(begin_stack, end_stack, vertices, texCoords, indices, dome_radius, verts_per_stack, total_stacks); + // fill it + buildStripsBuffer(begin_stack, end_stack, vertices, texCoords, indices, dome_radius, verts_per_stack, total_stacks); + + // and unlock the buffer + segment->unmapBuffer(); + } - // and unlock the buffer - segment->unmapBuffer(); - } - #if RELEASE_SHOW_DEBUG - LL_INFOS() << "completed in " << llformat("%.2f", timer.getElapsedTimeF32().value()) << "seconds" << LL_ENDL; + LL_INFOS() << "completed in " << llformat("%.2f", timer.getElapsedTimeF32().value()) << "seconds" << LL_ENDL; #endif - } + } - updateStarColors(); - updateStarGeometry(drawable); + updateStarColors(); + updateStarGeometry(drawable); - LLPipeline::sCompiles++; + LLPipeline::sCompiles++; - return TRUE; + return TRUE; } void LLVOWLSky::drawStars(void) { - // render the stars as a sphere centered at viewer camera - if (mStarsVerts.notNull()) - { - mStarsVerts->setBuffer(); - mStarsVerts->drawArrays(LLRender::TRIANGLES, 0, getStarsNumVerts()*4); - } + // render the stars as a sphere centered at viewer camera + if (mStarsVerts.notNull()) + { + mStarsVerts->setBuffer(); + mStarsVerts->drawArrays(LLRender::TRIANGLES, 0, getStarsNumVerts()*4); + } } void LLVOWLSky::drawFsSky(void) { if (mFsSkyVerts.isNull()) - { - updateGeometry(mDrawable); - } + { + updateGeometry(mDrawable); + } LLGLDisable disable_blend(GL_BLEND); - mFsSkyVerts->setBuffer(); - mFsSkyVerts->drawRange(LLRender::TRIANGLES, 0, mFsSkyVerts->getNumVerts() - 1, mFsSkyVerts->getNumIndices(), 0); - gPipeline.addTrianglesDrawn(mFsSkyVerts->getNumIndices()); - LLVertexBuffer::unbind(); + mFsSkyVerts->setBuffer(); + mFsSkyVerts->drawRange(LLRender::TRIANGLES, 0, mFsSkyVerts->getNumVerts() - 1, mFsSkyVerts->getNumIndices(), 0); + gPipeline.addTrianglesDrawn(mFsSkyVerts->getNumIndices()); + LLVertexBuffer::unbind(); } void LLVOWLSky::drawDome(void) { - if (mStripsVerts.empty()) - { - updateGeometry(mDrawable); - } + if (mStripsVerts.empty()) + { + updateGeometry(mDrawable); + } - LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE); + LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE); - std::vector< LLPointer<LLVertexBuffer> >::const_iterator strips_vbo_iter, end_strips; - end_strips = mStripsVerts.end(); - for(strips_vbo_iter = mStripsVerts.begin(); strips_vbo_iter != end_strips; ++strips_vbo_iter) - { - LLVertexBuffer * strips_segment = strips_vbo_iter->get(); + std::vector< LLPointer<LLVertexBuffer> >::const_iterator strips_vbo_iter, end_strips; + end_strips = mStripsVerts.end(); + for(strips_vbo_iter = mStripsVerts.begin(); strips_vbo_iter != end_strips; ++strips_vbo_iter) + { + LLVertexBuffer * strips_segment = strips_vbo_iter->get(); - strips_segment->setBuffer(); + strips_segment->setBuffer(); - strips_segment->drawRange( - LLRender::TRIANGLE_STRIP, - 0, strips_segment->getNumVerts()-1, strips_segment->getNumIndices(), - 0); - gPipeline.addTrianglesDrawn(strips_segment->getNumIndices()); - } + strips_segment->drawRange( + LLRender::TRIANGLE_STRIP, + 0, strips_segment->getNumVerts()-1, strips_segment->getNumIndices(), + 0); + gPipeline.addTrianglesDrawn(strips_segment->getNumIndices()); + } - LLVertexBuffer::unbind(); + LLVertexBuffer::unbind(); } void LLVOWLSky::initStars() { const F32 DISTANCE_TO_STARS = LLEnvironment::instance().getCurrentSky()->getDomeRadius(); - // Initialize star map - mStarVertices.resize(getStarsNumVerts()); - mStarColors.resize(getStarsNumVerts()); - mStarIntensities.resize(getStarsNumVerts()); - - std::vector<LLVector3>::iterator v_p = mStarVertices.begin(); - std::vector<LLColor4>::iterator v_c = mStarColors.begin(); - std::vector<F32>::iterator v_i = mStarIntensities.begin(); - - U32 i; - - for (i = 0; i < getStarsNumVerts(); ++i) - { - v_p->mV[VX] = ll_frand() - 0.5f; - v_p->mV[VY] = ll_frand() - 0.5f; - - // we only want stars on the top half of the dome! - - v_p->mV[VZ] = ll_frand()/2.f; - - v_p->normVec(); - *v_p *= DISTANCE_TO_STARS; - *v_i = llmin((F32)pow(ll_frand(),2.f) + 0.1f, 1.f); - v_c->mV[VRED] = 0.75f + ll_frand() * 0.25f ; - v_c->mV[VGREEN] = 1.f ; - v_c->mV[VBLUE] = 0.75f + ll_frand() * 0.25f ; - v_c->mV[VALPHA] = 1.f; - v_c->clamp(); - v_p++; - v_c++; - v_i++; - } + // Initialize star map + mStarVertices.resize(getStarsNumVerts()); + mStarColors.resize(getStarsNumVerts()); + mStarIntensities.resize(getStarsNumVerts()); + + std::vector<LLVector3>::iterator v_p = mStarVertices.begin(); + std::vector<LLColor4>::iterator v_c = mStarColors.begin(); + std::vector<F32>::iterator v_i = mStarIntensities.begin(); + + U32 i; + + for (i = 0; i < getStarsNumVerts(); ++i) + { + v_p->mV[VX] = ll_frand() - 0.5f; + v_p->mV[VY] = ll_frand() - 0.5f; + + // we only want stars on the top half of the dome! + + v_p->mV[VZ] = ll_frand()/2.f; + + v_p->normVec(); + *v_p *= DISTANCE_TO_STARS; + *v_i = llmin((F32)pow(ll_frand(),2.f) + 0.1f, 1.f); + v_c->mV[VRED] = 0.75f + ll_frand() * 0.25f ; + v_c->mV[VGREEN] = 1.f ; + v_c->mV[VBLUE] = 0.75f + ll_frand() * 0.25f ; + v_c->mV[VALPHA] = 1.f; + v_c->clamp(); + v_p++; + v_c++; + v_i++; + } } void LLVOWLSky::buildStripsBuffer(U32 begin_stack, @@ -382,200 +382,200 @@ void LLVOWLSky::buildStripsBuffer(U32 begin_stack, const U32& num_slices, const U32& num_stacks) { - U32 i, j; - F32 phi0, theta, x0, y0, z0; - const F32 reciprocal_num_stacks = 1.f / num_stacks; + U32 i, j; + F32 phi0, theta, x0, y0, z0; + const F32 reciprocal_num_stacks = 1.f / num_stacks; - llassert(end_stack <= num_stacks); + llassert(end_stack <= num_stacks); - // stacks are iterated one-indexed since phi(0) was handled by the fan above + // stacks are iterated one-indexed since phi(0) was handled by the fan above #if NEW_TESS - for(i = begin_stack; i <= end_stack; ++i) + for(i = begin_stack; i <= end_stack; ++i) #else - for(i = begin_stack + 1; i <= end_stack+1; ++i) + for(i = begin_stack + 1; i <= end_stack+1; ++i) #endif - { - phi0 = calcPhi(i, reciprocal_num_stacks); + { + phi0 = calcPhi(i, reciprocal_num_stacks); - for(j = 0; j < num_slices; ++j) - { - theta = F_TWO_PI * (float(j) / float(num_slices)); + for(j = 0; j < num_slices; ++j) + { + theta = F_TWO_PI * (float(j) / float(num_slices)); - // standard transformation from spherical to - // rectangular coordinates - x0 = sin(phi0) * cos(theta); - y0 = cos(phi0); - z0 = sin(phi0) * sin(theta); + // standard transformation from spherical to + // rectangular coordinates + x0 = sin(phi0) * cos(theta); + y0 = cos(phi0); + z0 = sin(phi0) * sin(theta); #if NEW_TESS *vertices++ = LLVector3(x0 * dome_radius, y0 * dome_radius, z0 * dome_radius); #else if (i == num_stacks-2) - { - *vertices++ = LLVector3(x0*dome_radius, y0*dome_radius-1024.f*2.f, z0*dome_radius); - } - else if (i == num_stacks-1) - { - *vertices++ = LLVector3(0, y0*dome_radius-1024.f*2.f, 0); - } - else - { - *vertices++ = LLVector3(x0 * dome_radius, y0 * dome_radius, z0 * dome_radius); - } + { + *vertices++ = LLVector3(x0*dome_radius, y0*dome_radius-1024.f*2.f, z0*dome_radius); + } + else if (i == num_stacks-1) + { + *vertices++ = LLVector3(0, y0*dome_radius-1024.f*2.f, 0); + } + else + { + *vertices++ = LLVector3(x0 * dome_radius, y0 * dome_radius, z0 * dome_radius); + } #endif - // generate planar uv coordinates - // note: x and z are transposed in order for things to animate - // correctly in the global coordinate system where +x is east and - // +y is north - *texCoords++ = LLVector2((-z0 + 1.f) / 2.f, (-x0 + 1.f) / 2.f); - } - } - - //build triangle strip... - *indices++ = 0 ; - - S32 k = 0 ; - for(i = 1; i <= end_stack - begin_stack; ++i) - { - *indices++ = i * num_slices + k ; - - k = (k+1) % num_slices ; - for(j = 0; j < num_slices ; ++j) - { - *indices++ = (i-1) * num_slices + k ; - *indices++ = i * num_slices + k ; - - k = (k+1) % num_slices ; - } - - if((--k) < 0) - { - k = num_slices - 1 ; - } - - *indices++ = i * num_slices + k ; - } + // generate planar uv coordinates + // note: x and z are transposed in order for things to animate + // correctly in the global coordinate system where +x is east and + // +y is north + *texCoords++ = LLVector2((-z0 + 1.f) / 2.f, (-x0 + 1.f) / 2.f); + } + } + + //build triangle strip... + *indices++ = 0 ; + + S32 k = 0 ; + for(i = 1; i <= end_stack - begin_stack; ++i) + { + *indices++ = i * num_slices + k ; + + k = (k+1) % num_slices ; + for(j = 0; j < num_slices ; ++j) + { + *indices++ = (i-1) * num_slices + k ; + *indices++ = i * num_slices + k ; + + k = (k+1) % num_slices ; + } + + if((--k) < 0) + { + k = num_slices - 1 ; + } + + *indices++ = i * num_slices + k ; + } } void LLVOWLSky::updateStarColors() { - std::vector<LLColor4>::iterator v_c = mStarColors.begin(); - std::vector<F32>::iterator v_i = mStarIntensities.begin(); - std::vector<LLVector3>::iterator v_p = mStarVertices.begin(); - - const F32 var = 0.15f; - const F32 min = 0.5f; //0.75f; - //const F32 sunclose_max = 0.6f; - //const F32 sunclose_range = 1 - sunclose_max; - - //F32 below_horizon = - llmin(0.0f, gSky.mVOSkyp->getToSunLast().mV[2]); - //F32 brightness_factor = llmin(1.0f, below_horizon * 20); - - static S32 swap = 0; - swap++; - - if ((swap % 2) == 1) - { - F32 intensity; // max intensity of each star - U32 x; - for (x = 0; x < getStarsNumVerts(); ++x) - { - //F32 sundir_factor = 1; - LLVector3 tostar = *v_p; - tostar.normVec(); - //const F32 how_close_to_sun = tostar * gSky.mVOSkyp->getToSunLast(); - //if (how_close_to_sun > sunclose_max) - //{ - // sundir_factor = (1 - how_close_to_sun) / sunclose_range; - //} - intensity = *(v_i); - F32 alpha = v_c->mV[VALPHA] + (ll_frand() - 0.5f) * var * intensity; - if (alpha < min * intensity) - { - alpha = min * intensity; - } - if (alpha > intensity) - { - alpha = intensity; - } - //alpha *= brightness_factor * sundir_factor; - - alpha = llclamp(alpha, 0.f, 1.f); - v_c->mV[VALPHA] = alpha; - v_c++; - v_i++; - v_p++; - } - } + std::vector<LLColor4>::iterator v_c = mStarColors.begin(); + std::vector<F32>::iterator v_i = mStarIntensities.begin(); + std::vector<LLVector3>::iterator v_p = mStarVertices.begin(); + + const F32 var = 0.15f; + const F32 min = 0.5f; //0.75f; + //const F32 sunclose_max = 0.6f; + //const F32 sunclose_range = 1 - sunclose_max; + + //F32 below_horizon = - llmin(0.0f, gSky.mVOSkyp->getToSunLast().mV[2]); + //F32 brightness_factor = llmin(1.0f, below_horizon * 20); + + static S32 swap = 0; + swap++; + + if ((swap % 2) == 1) + { + F32 intensity; // max intensity of each star + U32 x; + for (x = 0; x < getStarsNumVerts(); ++x) + { + //F32 sundir_factor = 1; + LLVector3 tostar = *v_p; + tostar.normVec(); + //const F32 how_close_to_sun = tostar * gSky.mVOSkyp->getToSunLast(); + //if (how_close_to_sun > sunclose_max) + //{ + // sundir_factor = (1 - how_close_to_sun) / sunclose_range; + //} + intensity = *(v_i); + F32 alpha = v_c->mV[VALPHA] + (ll_frand() - 0.5f) * var * intensity; + if (alpha < min * intensity) + { + alpha = min * intensity; + } + if (alpha > intensity) + { + alpha = intensity; + } + //alpha *= brightness_factor * sundir_factor; + + alpha = llclamp(alpha, 0.f, 1.f); + v_c->mV[VALPHA] = alpha; + v_c++; + v_i++; + v_p++; + } + } } BOOL LLVOWLSky::updateStarGeometry(LLDrawable *drawable) { - LLStrider<LLVector3> verticesp; - LLStrider<LLColor4U> colorsp; - LLStrider<LLVector2> texcoordsp; - - if (mStarsVerts.isNull()) - { - mStarsVerts = new LLVertexBuffer(LLDrawPoolWLSky::STAR_VERTEX_DATA_MASK); - if (!mStarsVerts->allocateBuffer(getStarsNumVerts()*6, 0)) - { - LL_WARNS() << "Failed to allocate Vertex Buffer for Sky to " << getStarsNumVerts() * 6 << " vertices" << LL_ENDL; - } - } - - BOOL success = mStarsVerts->getVertexStrider(verticesp) - && mStarsVerts->getColorStrider(colorsp) - && mStarsVerts->getTexCoord0Strider(texcoordsp); - - if(!success) - { - LL_ERRS() << "Failed updating star geometry." << LL_ENDL; - } - - // *TODO: fix LLStrider with a real prefix increment operator so it can be - // used as a model of OutputIterator. -Brad - // std::copy(mStarVertices.begin(), mStarVertices.end(), verticesp); - - if (mStarVertices.size() < getStarsNumVerts()) - { - LL_ERRS() << "Star reference geometry insufficient." << LL_ENDL; - } - - for (U32 vtx = 0; vtx < getStarsNumVerts(); ++vtx) - { - LLVector3 at = mStarVertices[vtx]; - at.normVec(); - LLVector3 left = at%LLVector3(0,0,1); - LLVector3 up = at%left; - - F32 sc = 16.0f + (ll_frand() * 20.0f); - left *= sc; - up *= sc; - - *(verticesp++) = mStarVertices[vtx]; - *(verticesp++) = mStarVertices[vtx]+up; - *(verticesp++) = mStarVertices[vtx]+left+up; - *(verticesp++) = mStarVertices[vtx]; - *(verticesp++) = mStarVertices[vtx]+left+up; - *(verticesp++) = mStarVertices[vtx]+left; - - *(texcoordsp++) = LLVector2(1,0); - *(texcoordsp++) = LLVector2(1,1); - *(texcoordsp++) = LLVector2(0,1); - *(texcoordsp++) = LLVector2(1,0); - *(texcoordsp++) = LLVector2(0,1); - *(texcoordsp++) = LLVector2(0,0); - - *(colorsp++) = LLColor4U(mStarColors[vtx]); - *(colorsp++) = LLColor4U(mStarColors[vtx]); - *(colorsp++) = LLColor4U(mStarColors[vtx]); - *(colorsp++) = LLColor4U(mStarColors[vtx]); - *(colorsp++) = LLColor4U(mStarColors[vtx]); - *(colorsp++) = LLColor4U(mStarColors[vtx]); - } - - mStarsVerts->unmapBuffer(); - return TRUE; + LLStrider<LLVector3> verticesp; + LLStrider<LLColor4U> colorsp; + LLStrider<LLVector2> texcoordsp; + + if (mStarsVerts.isNull()) + { + mStarsVerts = new LLVertexBuffer(LLDrawPoolWLSky::STAR_VERTEX_DATA_MASK); + if (!mStarsVerts->allocateBuffer(getStarsNumVerts()*6, 0)) + { + LL_WARNS() << "Failed to allocate Vertex Buffer for Sky to " << getStarsNumVerts() * 6 << " vertices" << LL_ENDL; + } + } + + BOOL success = mStarsVerts->getVertexStrider(verticesp) + && mStarsVerts->getColorStrider(colorsp) + && mStarsVerts->getTexCoord0Strider(texcoordsp); + + if(!success) + { + LL_ERRS() << "Failed updating star geometry." << LL_ENDL; + } + + // *TODO: fix LLStrider with a real prefix increment operator so it can be + // used as a model of OutputIterator. -Brad + // std::copy(mStarVertices.begin(), mStarVertices.end(), verticesp); + + if (mStarVertices.size() < getStarsNumVerts()) + { + LL_ERRS() << "Star reference geometry insufficient." << LL_ENDL; + } + + for (U32 vtx = 0; vtx < getStarsNumVerts(); ++vtx) + { + LLVector3 at = mStarVertices[vtx]; + at.normVec(); + LLVector3 left = at%LLVector3(0,0,1); + LLVector3 up = at%left; + + F32 sc = 16.0f + (ll_frand() * 20.0f); + left *= sc; + up *= sc; + + *(verticesp++) = mStarVertices[vtx]; + *(verticesp++) = mStarVertices[vtx]+up; + *(verticesp++) = mStarVertices[vtx]+left+up; + *(verticesp++) = mStarVertices[vtx]; + *(verticesp++) = mStarVertices[vtx]+left+up; + *(verticesp++) = mStarVertices[vtx]+left; + + *(texcoordsp++) = LLVector2(1,0); + *(texcoordsp++) = LLVector2(1,1); + *(texcoordsp++) = LLVector2(0,1); + *(texcoordsp++) = LLVector2(1,0); + *(texcoordsp++) = LLVector2(0,1); + *(texcoordsp++) = LLVector2(0,0); + + *(colorsp++) = LLColor4U(mStarColors[vtx]); + *(colorsp++) = LLColor4U(mStarColors[vtx]); + *(colorsp++) = LLColor4U(mStarColors[vtx]); + *(colorsp++) = LLColor4U(mStarColors[vtx]); + *(colorsp++) = LLColor4U(mStarColors[vtx]); + *(colorsp++) = LLColor4U(mStarColors[vtx]); + } + + mStarsVerts->unmapBuffer(); + return TRUE; } |