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# Objective #5703 caused the normal prepass to fail as the prepass uses `pbr_functions::apply_normal_mapping`, which uses `mesh_view_bindings::view` to determine mip bias, which conflicts with `prepass_bindings::view`. ## Solution pass the mip bias to the `apply_normal_mapping` function explicitly.
52 lines
1.7 KiB
WebGPU Shading Language
52 lines
1.7 KiB
WebGPU Shading Language
#import bevy_pbr::mesh_vertex_output MeshVertexOutput
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#import bevy_pbr::mesh_view_bindings view
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#import bevy_pbr::pbr_types STANDARD_MATERIAL_FLAGS_DOUBLE_SIDED_BIT
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#import bevy_core_pipeline::tonemapping tone_mapping
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#import bevy_pbr::pbr_functions as fns
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@group(1) @binding(0)
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var my_array_texture: texture_2d_array<f32>;
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@group(1) @binding(1)
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var my_array_texture_sampler: sampler;
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@fragment
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fn fragment(
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@builtin(front_facing) is_front: bool,
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mesh: MeshVertexOutput,
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) -> @location(0) vec4<f32> {
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let layer = i32(mesh.world_position.x) & 0x3;
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// Prepare a 'processed' StandardMaterial by sampling all textures to resolve
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// the material members
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var pbr_input: fns::PbrInput = fns::pbr_input_new();
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pbr_input.material.base_color = textureSample(my_array_texture, my_array_texture_sampler, mesh.uv, layer);
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#ifdef VERTEX_COLORS
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pbr_input.material.base_color = pbr_input.material.base_color * mesh.color;
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#endif
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pbr_input.frag_coord = mesh.position;
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pbr_input.world_position = mesh.world_position;
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pbr_input.world_normal = fns::prepare_world_normal(
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mesh.world_normal,
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(pbr_input.material.flags & STANDARD_MATERIAL_FLAGS_DOUBLE_SIDED_BIT) != 0u,
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is_front,
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);
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pbr_input.is_orthographic = view.projection[3].w == 1.0;
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pbr_input.N = fns::apply_normal_mapping(
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pbr_input.material.flags,
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mesh.world_normal,
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#ifdef VERTEX_TANGENTS
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#ifdef STANDARDMATERIAL_NORMAL_MAP
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mesh.world_tangent,
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#endif
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#endif
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mesh.uv,
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view.mip_bias,
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);
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pbr_input.V = fns::calculate_view(mesh.world_position, pbr_input.is_orthographic);
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return tone_mapping(fns::pbr(pbr_input), view.color_grading);
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}
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