robtfm 979c4094d4 pbr shader cleanup (#10105) ... # Objective cleanup some pbr shader code. improve shader stage io consistency and make pbr.wgsl (probably many people's first foray into bevy shader code) a little more human-readable. also fix a couple of small issues with deferred rendering. ## Solution mesh_vertex_output: - rename to forward_io (to align with prepass_io) - rename `MeshVertexOutput` to `VertexOutput` (to align with prepass_io) - move `Vertex` from mesh.wgsl into here (to align with prepass_io) prepass_io: - remove `FragmentInput`, use `VertexOutput` directly (to align with forward_io) - rename `VertexOutput::clip_position` to `position` (to align with forward_io) pbr.wgsl: - restructure so we don't need `#ifdefs` on the actual entrypoint, use VertexOutput and FragmentOutput in all cases and use #ifdefs to import the right struct definitions. - rearrange to make the flow clearer - move alpha_discard up from `pbr_functions::pbr` to avoid needing to call it on some branches and not others - add a bunch of comments deferred_lighting: - move ssao into the `!unlit` block to reflect forward behaviour correctly - fix compile error with deferred + premultiply_alpha ## Migration Guide in custom material shaders: - `pbr_functions::pbr` no longer calls to `pbr_functions::alpha_discard`. if you were using the `pbr` function in a custom shader with alpha mask mode you now also need to call alpha_discard manually - rename imports of `bevy_pbr::mesh_vertex_output` to `bevy_pbr::forward_io` - rename instances of `MeshVertexOutput` to `VertexOutput` in custom material prepass shaders: - rename instances of `VertexOutput::clip_position` to `VertexOutput::position`		2023-10-13 19:12:40 +00:00
..
animate_shader.wgsl	pbr shader cleanup (#10105)	2023-10-13 19:12:40 +00:00
array_texture.wgsl	pbr shader cleanup (#10105)	2023-10-13 19:12:40 +00:00
cubemap_unlit.wgsl	pbr shader cleanup (#10105)	2023-10-13 19:12:40 +00:00
custom_gltf_2d.wgsl	Automatic batching/instancing of draw commands (#9685)	2023-09-21 22:12:34 +00:00
custom_material.frag	improve shader import model (#5703)	2023-06-27 00:29:22 +00:00
custom_material.vert	fix shader_material_glsl example (#9513)	2023-08-21 07:58:21 +00:00
custom_material.wgsl	pbr shader cleanup (#10105)	2023-10-13 19:12:40 +00:00
custom_material_import.wgsl	fix custom shader imports (#10030)	2023-10-06 01:34:57 +00:00
custom_material_screenspace_texture.wgsl	pbr shader cleanup (#10105)	2023-10-13 19:12:40 +00:00
custom_vertex_attribute.wgsl	Use a single line for of large binding lists (#9849)	2023-09-19 22:17:44 +00:00
fallback_image_test.wgsl	pbr shader cleanup (#10105)	2023-10-13 19:12:40 +00:00
game_of_life.wgsl	Use a single line for of large binding lists (#9849)	2023-09-19 22:17:44 +00:00
instancing.wgsl	Fix shader_instancing example (#9448)	2023-08-15 07:28:45 +00:00
line_material.wgsl	pbr shader cleanup (#10105)	2023-10-13 19:12:40 +00:00
post_processing.wgsl	Use a single line for of large binding lists (#9849)	2023-09-19 22:17:44 +00:00
shader_defs.wgsl	pbr shader cleanup (#10105)	2023-10-13 19:12:40 +00:00
show_prepass.wgsl	pbr shader cleanup (#10105)	2023-10-13 19:12:40 +00:00
texture_binding_array.wgsl	pbr shader cleanup (#10105)	2023-10-13 19:12:40 +00:00
tonemapping_test_patterns.wgsl	pbr shader cleanup (#10105)	2023-10-13 19:12:40 +00:00