/indra/newview/llsky.cpp
https://bitbucket.org/lindenlab/viewer-beta/ · C++ · 481 lines · 346 code · 80 blank · 55 comment · 38 complexity · 2435c0d98c0de3b7f5655950a20ecc56 MD5 · raw file
- /**
- * @file llsky.cpp
- * @brief IndraWorld sky class
- *
- * $LicenseInfo:firstyear=2000&license=viewerlgpl$
- * 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
- * $/LicenseInfo$
- */
- // Ideas:
- // -haze should be controlled by global query from sims
- // -need secondary optical effects on sun (flare)
- // -stars should be brought down from sims
- // -star intensity should be driven by global ambient level from sims,
- // so that eclipses, etc can be easily done.
- //
- #include "llviewerprecompiledheaders.h"
- #include "llsky.h"
- // linden library includes
- #include "llerror.h"
- #include "llmath.h"
- #include "math.h"
- #include "v4color.h"
- #include "llviewerobjectlist.h"
- #include "llviewerobject.h"
- #include "llviewercamera.h"
- #include "pipeline.h"
- #include "lldrawpool.h"
- #include "llvosky.h"
- #include "llcubemap.h"
- #include "llviewercontrol.h"
- #include "llvowlsky.h"
- F32 azimuth_from_vector(const LLVector3 &v);
- F32 elevation_from_vector(const LLVector3 &v);
- LLSky gSky;
- // ---------------- LLSky ----------------
- const F32 LLSky::NIGHTTIME_ELEVATION = -8.0f; // degrees
- const F32 LLSky::NIGHTTIME_ELEVATION_COS = (F32)sin(NIGHTTIME_ELEVATION*DEG_TO_RAD);
- //////////////////////////////////////////////////////////////////////
- // Construction/Destruction
- //////////////////////////////////////////////////////////////////////
- LLSky::LLSky()
- {
- // Set initial clear color to black
- // Set fog color
- mFogColor.mV[VRED] = mFogColor.mV[VGREEN] = mFogColor.mV[VBLUE] = 0.5f;
- mFogColor.mV[VALPHA] = 0.0f;
- mLightingGeneration = 0;
- mUpdatedThisFrame = TRUE;
- mOverrideSimSunPosition = FALSE;
- mSunPhase = 0.f;
- }
- LLSky::~LLSky()
- {
- }
- void LLSky::cleanup()
- {
- mVOSkyp = NULL;
- mVOWLSkyp = NULL;
- mVOGroundp = NULL;
- }
- void LLSky::destroyGL()
- {
- if (!mVOSkyp.isNull() && mVOSkyp->getCubeMap())
- {
- mVOSkyp->cleanupGL();
- }
- if (mVOWLSkyp.notNull())
- {
- mVOWLSkyp->cleanupGL();
- }
- }
- void LLSky::restoreGL()
- {
- if (mVOSkyp)
- {
- mVOSkyp->restoreGL();
- }
- if (mVOWLSkyp)
- {
- mVOWLSkyp->restoreGL();
- }
- }
- void LLSky::resetVertexBuffers()
- {
- if (gSky.mVOSkyp.notNull())
- {
- gPipeline.resetVertexBuffers(gSky.mVOSkyp->mDrawable);
- gPipeline.resetVertexBuffers(gSky.mVOGroundp->mDrawable);
- gPipeline.markRebuild(gSky.mVOSkyp->mDrawable, LLDrawable::REBUILD_ALL, TRUE);
- gPipeline.markRebuild(gSky.mVOGroundp->mDrawable, LLDrawable::REBUILD_ALL, TRUE);
- }
- if (gSky.mVOWLSkyp.notNull())
- {
- gSky.mVOWLSkyp->resetVertexBuffers();
- gPipeline.resetVertexBuffers(gSky.mVOWLSkyp->mDrawable);
- gPipeline.markRebuild(gSky.mVOWLSkyp->mDrawable, LLDrawable::REBUILD_ALL, TRUE);
- }
- }
- void LLSky::setOverrideSun(BOOL override)
- {
- if (!mOverrideSimSunPosition && override)
- {
- mLastSunDirection = getSunDirection();
- }
- else if (mOverrideSimSunPosition && !override)
- {
- setSunDirection(mLastSunDirection, LLVector3::zero);
- }
- mOverrideSimSunPosition = override;
- }
- void LLSky::setSunDirection(const LLVector3 &sun_direction, const LLVector3 &sun_ang_velocity)
- {
- if(mVOSkyp.notNull()) {
- mVOSkyp->setSunDirection(sun_direction, sun_ang_velocity);
- }
- }
- void LLSky::setSunTargetDirection(const LLVector3 &sun_direction, const LLVector3 &sun_ang_velocity)
- {
- mSunTargDir = sun_direction;
- }
- LLVector3 LLSky::getSunDirection() const
- {
- if (mVOSkyp)
- {
- return mVOSkyp->getToSun();
- }
- else
- {
- return LLVector3::z_axis;
- }
- }
- LLVector3 LLSky::getMoonDirection() const
- {
- if (mVOSkyp)
- {
- return mVOSkyp->getToMoon();
- }
- else
- {
- return LLVector3::z_axis;
- }
- }
- LLColor4 LLSky::getSunDiffuseColor() const
- {
- if (mVOSkyp)
- {
- return LLColor4(mVOSkyp->getSunDiffuseColor());
- }
- else
- {
- return LLColor4(1.f, 1.f, 1.f, 1.f);
- }
- }
- LLColor4 LLSky::getSunAmbientColor() const
- {
- if (mVOSkyp)
- {
- return LLColor4(mVOSkyp->getSunAmbientColor());
- }
- else
- {
- return LLColor4(0.f, 0.f, 0.f, 1.f);
- }
- }
- LLColor4 LLSky::getMoonDiffuseColor() const
- {
- if (mVOSkyp)
- {
- return LLColor4(mVOSkyp->getMoonDiffuseColor());
- }
- else
- {
- return LLColor4(1.f, 1.f, 1.f, 1.f);
- }
- }
- LLColor4 LLSky::getMoonAmbientColor() const
- {
- if (mVOSkyp)
- {
- return LLColor4(mVOSkyp->getMoonAmbientColor());
- }
- else
- {
- return LLColor4(0.f, 0.f, 0.f, 0.f);
- }
- }
- LLColor4 LLSky::getTotalAmbientColor() const
- {
- if (mVOSkyp)
- {
- return mVOSkyp->getTotalAmbientColor();
- }
- else
- {
- return LLColor4(1.f, 1.f, 1.f, 1.f);
- }
- }
- BOOL LLSky::sunUp() const
- {
- if (mVOSkyp)
- {
- return mVOSkyp->isSunUp();
- }
- else
- {
- return TRUE;
- }
- }
- LLColor4U LLSky::getFadeColor() const
- {
- if (mVOSkyp)
- {
- return mVOSkyp->getFadeColor();
- }
- else
- {
- return LLColor4(1.f, 1.f, 1.f, 1.f);
- }
- }
- //////////////////////////////////////////////////////////////////////
- // Public Methods
- //////////////////////////////////////////////////////////////////////
- void LLSky::init(const LLVector3 &sun_direction)
- {
- LLGLState::checkStates();
- LLGLState::checkTextureChannels();
- mVOWLSkyp = static_cast<LLVOWLSky*>(gObjectList.createObjectViewer(LLViewerObject::LL_VO_WL_SKY, NULL));
- mVOWLSkyp->initSunDirection(sun_direction, LLVector3::zero);
- gPipeline.createObject(mVOWLSkyp.get());
- LLGLState::checkStates();
- LLGLState::checkTextureChannels();
- mVOSkyp = (LLVOSky *)gObjectList.createObjectViewer(LLViewerObject::LL_VO_SKY, NULL);
- LLGLState::checkStates();
- LLGLState::checkTextureChannels();
- mVOSkyp->initSunDirection(sun_direction, LLVector3());
- LLGLState::checkStates();
- LLGLState::checkTextureChannels();
- gPipeline.createObject((LLViewerObject *)mVOSkyp);
- LLGLState::checkStates();
- LLGLState::checkTextureChannels();
- mVOGroundp = (LLVOGround*)gObjectList.createObjectViewer(LLViewerObject::LL_VO_GROUND, NULL);
- LLVOGround *groundp = mVOGroundp;
- gPipeline.createObject((LLViewerObject *)groundp);
- LLGLState::checkStates();
- LLGLState::checkTextureChannels();
- gSky.setFogRatio(gSavedSettings.getF32("RenderFogRatio"));
- ////////////////////////////
- //
- // Legacy code, ignore
- //
- //
- // Get the parameters.
- mSunDefaultPosition = gSavedSettings.getVector3("SkySunDefaultPosition");
- LLGLState::checkStates();
- LLGLState::checkTextureChannels();
- if (gSavedSettings.getBOOL("SkyOverrideSimSunPosition") || mOverrideSimSunPosition)
- {
- setSunDirection(mSunDefaultPosition, LLVector3(0.f, 0.f, 0.f));
- }
- else
- {
- setSunDirection(sun_direction, LLVector3(0.f, 0.f, 0.f));
- }
- LLGLState::checkStates();
- LLGLState::checkTextureChannels();
- mUpdatedThisFrame = TRUE;
- }
- void LLSky::setCloudDensityAtAgent(F32 cloud_density)
- {
- if (mVOSkyp)
- {
- mVOSkyp->setCloudDensity(cloud_density);
- }
- }
- void LLSky::setWind(const LLVector3& average_wind)
- {
- if (mVOSkyp)
- {
- mVOSkyp->setWind(average_wind);
- }
- }
- void LLSky::propagateHeavenlyBodies(F32 dt)
- {
- if (!mOverrideSimSunPosition)
- {
- LLVector3 curr_dir = getSunDirection();
- LLVector3 diff = mSunTargDir - curr_dir;
- const F32 dist = diff.normVec();
- if (dist > 0)
- {
- const F32 step = llmin (dist, 0.00005f);
- //const F32 step = min (dist, 0.0001);
- diff *= step;
- curr_dir += diff;
- curr_dir.normVec();
- if (mVOSkyp)
- {
- mVOSkyp->setSunDirection(curr_dir, LLVector3());
- }
- }
- }
- }
- F32 LLSky::getSunPhase() const
- {
- return mSunPhase;
- }
- void LLSky::setSunPhase(const F32 phase)
- {
- mSunPhase = phase;
- }
- //////////////////////////////////////////////////////////////////////
- // Private Methods
- //////////////////////////////////////////////////////////////////////
- LLColor4 LLSky::getFogColor() const
- {
- if (mVOSkyp)
- {
- return mVOSkyp->getFogColor();
- }
- return LLColor4(1.f, 1.f, 1.f, 1.f);
- }
- void LLSky::updateFog(const F32 distance)
- {
- if (mVOSkyp)
- {
- mVOSkyp->updateFog(distance);
- }
- }
- void LLSky::updateCull()
- {
- // *TODO: do culling for wl sky properly -Brad
- }
- void LLSky::updateSky()
- {
- if (!gPipeline.hasRenderType(LLPipeline::RENDER_TYPE_SKY))
- {
- return;
- }
- if (mVOSkyp)
- {
- mVOSkyp->updateSky();
- }
- }
- void LLSky::setFogRatio(const F32 fog_ratio)
- {
- if (mVOSkyp)
- {
- mVOSkyp->setFogRatio(fog_ratio);
- }
- }
- F32 LLSky::getFogRatio() const
- {
- if (mVOSkyp)
- {
- return mVOSkyp->getFogRatio();
- }
- else
- {
- return 0.f;
- }
- }
- // Returns angle (DEGREES) between the horizontal plane and "v",
- // where the angle is negative when v.mV[VZ] < 0.0f
- F32 elevation_from_vector(const LLVector3 &v)
- {
- F32 elevation = 0.0f;
- F32 xy_component = (F32) sqrt(v.mV[VX] * v.mV[VX] + v.mV[VY] * v.mV[VY]);
- if (xy_component != 0.0f)
- {
- elevation = RAD_TO_DEG * (F32) atan(v.mV[VZ]/xy_component);
- }
- else
- {
- if (v.mV[VZ] > 0.f)
- {
- elevation = 90.f;
- }
- else
- {
- elevation = -90.f;
- }
- }
- return elevation;
- }