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Optimize M2/WMO render loop: cache UBO pointers, precompute model flags, reduce rebinds

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- Cache material UBO mapped pointers at creation time, eliminating
  per-batch vmaGetAllocationInfo() calls in the hot render path
- Precompute foliage/elven/lantern/kobold model name classifications
  at load time instead of per-instance string operations every frame
- Remove redundant descriptor set and push constant rebinds on WMO
  pipeline switches (preserved across compatible layouts)
- Pre-allocate glow sprite descriptor set once at init instead of
  allocating from the pool every frame
This commit is contained in:
Kelsi 2026-02-23 06:06:24 -08:00
parent 77012adbc6
commit efc7e65dfc
3 changed files with 58 additions and 74 deletions
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7
src/rendering/wmo_renderer.cpp
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@ -1475,17 +1475,14 @@ void WMORenderer::render(VkCommandBuffer cmd, VkDescriptorSet perFrameSet, const
neededPipeline = 1; // transparent (alpha blend, no depth write)
}
// Switch pipeline if needed
// Switch pipeline if needed (descriptor sets and push constants
// are preserved across compatible pipeline layout switches)
if (neededPipeline != currentPipelineKind) {
VkPipeline targetPipeline = activePipeline;
if (neededPipeline == 1) targetPipeline = transparentPipeline_;
else if (neededPipeline == 2) targetPipeline = glassPipeline_;
vkCmdBindPipeline(cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, targetPipeline);
vkCmdBindDescriptorSets(cmd, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout_,
0, 1, &perFrameSet, 0, nullptr);
vkCmdPushConstants(cmd, pipelineLayout_, VK_SHADER_STAGE_VERTEX_BIT,
0, sizeof(GPUPushConstants), &push);
currentPipelineKind = neededPipeline;
}