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feat: add frustum culling to quest marker rendering for consistency

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Add view-frustum intersection testing to QuestMarkerRenderer::render() using
Frustum::intersectsSphere(), bringing quest marker culling in line with the
character instance and WMO group frustum culling improvements. Reduces marker
visibility testing overhead in scenes with many off-screen quest givers.
This commit is contained in:
Kelsi 2026-03-11 13:30:07 -07:00
parent 2c25e08a25
commit fe2987dae1
1 changed files with 10 additions and 0 deletions
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10
src/rendering/quest_marker_renderer.cpp
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@ -1,5 +1,6 @@
#include "rendering/quest_marker_renderer.hpp"
#include "rendering/camera.hpp"
#include "rendering/frustum.hpp"
#include "rendering/vk_context.hpp"
#include "rendering/vk_shader.hpp"
#include "rendering/vk_pipeline.hpp"
@ -374,6 +375,10 @@ void QuestMarkerRenderer::render(VkCommandBuffer cmd, VkDescriptorSet perFrameSe
glm::mat4 view = camera.getViewMatrix();
glm::vec3 cameraPos = camera.getPosition();
// Extract frustum planes for visibility testing
Frustum frustum;
frustum.extractFromMatrix(camera.getViewProjectionMatrix());
// Get camera right and up vectors for billboarding
glm::vec3 cameraRight = glm::vec3(view[0][0], view[1][0], view[2][0]);
glm::vec3 cameraUp = glm::vec3(view[0][1], view[1][1], view[2][1]);
@ -398,6 +403,11 @@ void QuestMarkerRenderer::render(VkCommandBuffer cmd, VkDescriptorSet perFrameSe
glm::vec3 toCamera = cameraPos - marker.position;
float distSq = glm::dot(toCamera, toCamera);
if (distSq > CULL_DIST_SQ) continue;
// Frustum cull quest markers (small sphere for icon)
constexpr float markerCullRadius = 0.5f;
if (!frustum.intersectsSphere(marker.position, markerCullRadius)) continue;
float dist = std::sqrt(distSq);
// Calculate fade alpha