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Fix shadows not rendering until player moves by deferring shadow pass until character position is set

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Kelsi 2026-02-23 05:45:22 -08:00
parent 639df4815e
commit 6fc2c36dae
1 changed files with 8 additions and 0 deletions
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8
src/rendering/renderer.cpp
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@ -3705,7 +3705,13 @@ glm::mat4 Renderer::computeLightSpaceMatrix() {
// Keep a stable shadow focus center and move it smoothly toward the player
// to avoid visible shadow "state jumps" during movement.
glm::vec3 desiredCenter = characterPosition;
// Don't initialize shadow center until the player has a real world position.
// characterPosition starts at (0,0,0) and gets set once the server places us.
if (!shadowCenterInitialized) {
if (glm::dot(desiredCenter, desiredCenter) < 1.0f) {
// Position not set yet — skip shadow rendering this frame.
return glm::mat4(0.0f);
}
shadowCenter = desiredCenter;
shadowCenterInitialized = true;
} else {
@ -3860,6 +3866,8 @@ void Renderer::renderShadowPass() {
// Compute and store light space matrix; write to per-frame UBO
lightSpaceMatrix = computeLightSpaceMatrix();
// Zero matrix means character position isn't set yet — skip shadow pass entirely.
if (lightSpaceMatrix == glm::mat4(0.0f)) return;
uint32_t frame = vkCtx->getCurrentFrame();
auto* ubo = reinterpret_cast<GPUPerFrameData*>(perFrameUBOMapped[frame]);
if (ubo) {