diff options
Diffstat (limited to 'indra/newview/llspatialpartition.cpp')
| -rw-r--r-- | indra/newview/llspatialpartition.cpp | 60 |
1 files changed, 35 insertions, 25 deletions
diff --git a/indra/newview/llspatialpartition.cpp b/indra/newview/llspatialpartition.cpp index cc54f21a7e..7adffb6925 100644 --- a/indra/newview/llspatialpartition.cpp +++ b/indra/newview/llspatialpartition.cpp @@ -1516,31 +1516,37 @@ void LLSpatialGroup::checkOcclusion() } else if (isOcclusionState(QUERY_PENDING)) { //otherwise, if a query is pending, read it back - GLuint res = 1; - if (!isOcclusionState(DISCARD_QUERY) && mOcclusionQuery[LLViewerCamera::sCurCameraID]) - { - glGetQueryObjectuivARB(mOcclusionQuery[LLViewerCamera::sCurCameraID], GL_QUERY_RESULT_ARB, &res); - } - if (isOcclusionState(DISCARD_QUERY)) - { - res = 2; - } + GLuint available = 0; + glGetQueryObjectuivARB(mOcclusionQuery[LLViewerCamera::sCurCameraID], GL_QUERY_RESULT_AVAILABLE_ARB, &available); + if (available) + { //result is available, read it back, otherwise wait until next frame + GLuint res = 1; + if (!isOcclusionState(DISCARD_QUERY) && mOcclusionQuery[LLViewerCamera::sCurCameraID]) + { + glGetQueryObjectuivARB(mOcclusionQuery[LLViewerCamera::sCurCameraID], GL_QUERY_RESULT_ARB, &res); + } - if (res > 0) - { - assert_states_valid(this); - clearOcclusionState(LLSpatialGroup::OCCLUDED, LLSpatialGroup::STATE_MODE_DIFF); - assert_states_valid(this); - } - else - { - assert_states_valid(this); - setOcclusionState(LLSpatialGroup::OCCLUDED, LLSpatialGroup::STATE_MODE_DIFF); - assert_states_valid(this); - } + if (isOcclusionState(DISCARD_QUERY)) + { + res = 2; + } - clearOcclusionState(QUERY_PENDING | DISCARD_QUERY); + if (res > 0) + { + assert_states_valid(this); + clearOcclusionState(LLSpatialGroup::OCCLUDED, LLSpatialGroup::STATE_MODE_DIFF); + assert_states_valid(this); + } + else + { + assert_states_valid(this); + setOcclusionState(LLSpatialGroup::OCCLUDED, LLSpatialGroup::STATE_MODE_DIFF); + assert_states_valid(this); + } + + clearOcclusionState(QUERY_PENDING | DISCARD_QUERY); + } } else if (mSpatialPartition->isOcclusionEnabled() && isOcclusionState(LLSpatialGroup::OCCLUDED)) { //check occlusion has been issued for occluded node that has not had a query issued @@ -1566,7 +1572,8 @@ void LLSpatialGroup::doOcclusion(LLCamera* camera) } else { - { + if (!isOcclusionState(QUERY_PENDING) || isOcclusionState(DISCARD_QUERY)) + { //no query pending, or previous query to be discarded LLFastTimer t(FTM_RENDER_OCCLUSION); if (!mOcclusionQuery[LLViewerCamera::sCurCameraID]) @@ -1590,7 +1597,10 @@ void LLSpatialGroup::doOcclusion(LLCamera* camera) glEnable(GL_DEPTH_CLAMP); } - glBeginQueryARB(GL_SAMPLES_PASSED_ARB, mOcclusionQuery[LLViewerCamera::sCurCameraID]); + U32 mode = gGLManager.mHasOcclusionQuery2 ? GL_ANY_SAMPLES_PASSED : GL_SAMPLES_PASSED_ARB; + + glBeginQueryARB(mode, mOcclusionQuery[LLViewerCamera::sCurCameraID]); + glVertexPointer(3, GL_FLOAT, 16, mOcclusionVerts); if (camera->getOrigin().isExactlyZero()) { //origin is invalid, draw entire box @@ -1604,7 +1614,7 @@ void LLSpatialGroup::doOcclusion(LLCamera* camera) glDrawRangeElements(GL_TRIANGLE_FAN, 0, 7, 8, GL_UNSIGNED_BYTE, get_box_fan_indices(camera, mBounds[0])); } - glEndQueryARB(GL_SAMPLES_PASSED_ARB); + glEndQueryARB(mode); if (use_depth_clamp) { |