From 06a2d4eb274b1cd02b82bf2e5ffb458880ae8517 Mon Sep 17 00:00:00 2001 From: Leslie Linden Date: Mon, 28 Nov 2011 17:13:42 -0800 Subject: SH-2038 PROGRESS -- Hacked the code to not render alpha using VBO's on OS X since everything renders faster using VBO's except alpha for some mysterious reason. --- indra/newview/llvovolume.cpp | 21 ++++++++++++++++----- 1 file changed, 16 insertions(+), 5 deletions(-) (limited to 'indra/newview/llvovolume.cpp') diff --git a/indra/newview/llvovolume.cpp b/indra/newview/llvovolume.cpp index 3d013f286c..20f8674655 100644 --- a/indra/newview/llvovolume.cpp +++ b/indra/newview/llvovolume.cpp @@ -4624,6 +4624,19 @@ struct CompareBatchBreakerModified void LLVolumeGeometryManager::genDrawInfo(LLSpatialGroup* group, U32 mask, std::vector& faces, BOOL distance_sort, BOOL batch_textures) { + U32 buffer_usage = group->mBufferUsage; + +#if LL_DARWIN + // HACK from Leslie: + // Disable VBO usage for alpha on Mac OS X because it kills the framerate + // due to implicit calls to glTexSubImage that are beyond our control. + // (this works because the only calls here that sort by distance are alpha) + if (distance_sort) + { + buffer_usage = 0x0; + } +#endif + //calculate maximum number of vertices to store in a single buffer U32 max_vertices = (gSavedSettings.getS32("RenderMaxVBOSize")*1024)/LLVertexBuffer::calcVertexSize(group->mSpatialPartition->mVertexDataMask); max_vertices = llmin(max_vertices, (U32) 65535); @@ -4805,17 +4818,15 @@ void LLVolumeGeometryManager::genDrawInfo(LLSpatialGroup* group, U32 mask, std:: if (!buffer) { //create new buffer if needed - buffer = createVertexBuffer(mask, - group->mBufferUsage); + buffer = createVertexBuffer(mask, buffer_usage); buffer->allocateBuffer(geom_count, index_count, TRUE); } else { //resize pre-existing buffer - if (LLVertexBuffer::sEnableVBOs && buffer->getUsage() != group->mBufferUsage || + if (LLVertexBuffer::sEnableVBOs && buffer->getUsage() != buffer_usage || buffer->getTypeMask() != mask) { - buffer = createVertexBuffer(mask, - group->mBufferUsage); + buffer = createVertexBuffer(mask, buffer_usage); buffer->allocateBuffer(geom_count, index_count, TRUE); } else -- cgit v1.2.3