Hello.
I switched from Lumen to Standard light settings due to low performance, as a result, some artifacts appeared in my game, glitches with light and shadows, some spots appeared on the walls and ceilings. Watch the video.
What is the reason for this and how to fix it?
When switching to standard light settings, the quality of indirect lighting might decrease compared to Lumen. Ensure that the lightmap resolution for affected surfaces (walls, ceilings) is sufficient to capture the desired level of detail. Increasing the lightmap resolution can help reduce artifacts like blotches or splotches on surfaces.
Lighting Setup: Review your lighting setup, including light sources, light bounces, and lightmass settings. Adjust the number of indirect lighting bounces and the intensity of light sources to achieve the desired balance between performance and visual quality. Ensure that lightmaps are properly baked for static objects to avoid discrepancies between direct and indirect lighting.
Shadow Settings: Check your shadow settings for directional lights and stationary lights. Adjust the shadow bias, resolution, and cascade settings to minimize shadow artifacts, such as flickering or jagged edges. Increasing the shadow map resolution can improve the quality of shadows cast by dynamic objects.
Mesh Geometry: Inspect the geometry of affected surfaces for issues like overlapping UVs, non-manifold geometry, or excessive triangles. Simplify geometry where possible and ensure that UVs are properly unwrapped to prevent lightmap stretching or distortion.
Post-Processing Effects: Evaluate the impact of post-processing effects like ambient occlusion, screen space reflections, and bloom on visual artifacts. Adjust the intensity and parameters of these effects to mitigate any adverse effects on image quality.
Testing and Iteration: Test your scene in different lighting conditions and camera angles to identify and address specific areas where artifacts are most prominent. Iterate on your lighting setup and mesh optimization techniques until you achieve the desired visual fidelity and performance.
