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Avoid needless second pass on non-glow particles.

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Shyotl
2013-11-13 02:27:01 -06:00
parent 3ed249cba5
commit ba84bf1461
2 changed files with 3 additions and 1 deletions
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1
indra/newview/lldrawpoolalpha.cpp
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@@ -598,6 +598,7 @@ void LLDrawPoolAlpha::renderAlpha(U32 mask, S32 pass)
// If this alpha mesh has glow, then draw it a second time to add the destination-alpha (=glow). Interleaving these state-changing calls could be expensive, but glow must be drawn Z-sorted with alpha. // If this alpha mesh has glow, then draw it a second time to add the destination-alpha (=glow). Interleaving these state-changing calls could be expensive, but glow must be drawn Z-sorted with alpha.
if (current_shader && if (current_shader &&
draw_glow_for_this_partition && draw_glow_for_this_partition &&
params.mHasGlow && //only do this second pass for batches that actually have glow
params.mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_EMISSIVE)) params.mVertexBuffer->hasDataType(LLVertexBuffer::TYPE_EMISSIVE))
{ {
// install glow-accumulating blend mode // install glow-accumulating blend mode

3
indra/newview/llvopartgroup.cpp
View File

@@ -716,7 +716,8 @@ void LLVOPartGroup::getGeometry(S32 idx,
*colorsp++ = color; *colorsp++ = color;
*colorsp++ = color; *colorsp++ = color;
//if (pglow.mV[3] || part.mGlow.mV[3]) //Only add emissive attributes if glowing (doing it for all particles is INCREDIBLY inefficient as it leads to a second, slower, render pass.)
if (pglow.mV[3] > F_ALMOST_ZERO || part.mGlow.mV[3] > F_ALMOST_ZERO)
{ //only write glow if it is not zero { //only write glow if it is not zero
*emissivep++ = pglow; *emissivep++ = pglow;
*emissivep++ = pglow; *emissivep++ = pglow;