mirror of
https://github.com/bevyengine/bevy
synced 2024-12-18 17:13:10 +00:00
d221665386
# Objective - Fixes #16078 ## Solution - Rename things to clarify that we _want_ unclipped depth for directional light shadow views, and need some way of disabling the GPU's builtin depth clipping - Use DEPTH_CLIP_CONTROL instead of the fragment shader emulation on supported platforms - Pass only the clip position depth instead of the whole clip position between vertex->fragment shader (no idea if this helps performance or not, compiler might optimize it anyways) - Meshlets - HW raster always uses DEPTH_CLIP_CONTROL since it targets a more limited set of platforms - SW raster was not handling DEPTH_CLAMP_ORTHO correctly, it ended up pretty much doing nothing. - This PR made me realize that SW raster technically should have depth clipping for all views that are not directional light shadows, but I decided not to bother writing it. I'm not sure that it ever matters in practice. If proven otherwise, I can add it. ## Testing - Did you test these changes? If so, how? - Lighting example. Both opaque (no fragment shader) and alpha masked geometry (fragment shader emulation) are working with depth_clip_control, and both work when it's turned off. Also tested meshlet example. - Are there any parts that need more testing? - Performance. I can't figure out a good test scene. - How can other people (reviewers) test your changes? Is there anything specific they need to know? - Toggle depth_clip_control_supported in prepass/mod.rs line 323 to turn this PR on or off. - If relevant, what platforms did you test these changes on, and are there any important ones you can't test? - Native --- ## Migration Guide - `MeshPipelineKey::DEPTH_CLAMP_ORTHO` is now `MeshPipelineKey::UNCLIPPED_DEPTH_ORTHO` - The `DEPTH_CLAMP_ORTHO` shaderdef has been renamed to `UNCLIPPED_DEPTH_ORTHO_EMULATION` - `clip_position_unclamped: vec4<f32>` is now `unclipped_depth: f32` |
||
|---|---|---|
| .. | ||
| bevy_a11y | ||
| bevy_animation | ||
| bevy_app | ||
| bevy_asset | ||
| bevy_audio | ||
| bevy_color | ||
| bevy_core | ||
| bevy_core_pipeline | ||
| bevy_derive | ||
| bevy_dev_tools | ||
| bevy_diagnostic | ||
| bevy_dylib | ||
| bevy_ecs | ||
| bevy_encase_derive | ||
| bevy_gilrs | ||
| bevy_gizmos | ||
| bevy_gltf | ||
| bevy_hierarchy | ||
| bevy_image | ||
| bevy_input | ||
| bevy_internal | ||
| bevy_log | ||
| bevy_macro_utils | ||
| bevy_math | ||
| bevy_mesh | ||
| bevy_mikktspace | ||
| bevy_pbr | ||
| bevy_picking | ||
| bevy_ptr | ||
| bevy_reflect | ||
| bevy_remote | ||
| bevy_render | ||
| bevy_scene | ||
| bevy_sprite | ||
| bevy_state | ||
| bevy_tasks | ||
| bevy_text | ||
| bevy_time | ||
| bevy_transform | ||
| bevy_ui | ||
| bevy_utils | ||
| bevy_window | ||
| bevy_winit | ||