forked from 1b-agent/opencadstudio-upstream
Hakan Seven
5e8221f8f1
Keep all solid geometry GPU-resident during navigation. Use vertex-rate instancing, compact untextured vertices, vertex-cache ordering, and cached silhouette sources without culling geometry.
85 lines
2.6 KiB
WebGPU Shading Language
85 lines
2.6 KiB
WebGPU Shading Language
struct Uniforms {
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viewport_size: vec2<f32>,
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world_per_pixel: f32,
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lwdisplay_enable: f32,
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flat_shade: f32,
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transparency_enable: f32,
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linetype_scale: f32,
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_pad: f32,
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view_rot: mat4x4<f32>,
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eye_high: vec3<f32>,
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_pad_eh: f32,
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eye_low: vec3<f32>,
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_pad_el: f32,
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light_position_type: array<vec4<f32>, 4>,
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light_direction_intensity: array<vec4<f32>, 4>,
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light_color_hotspot: array<vec4<f32>, 4>,
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light_attenuation: array<vec4<f32>, 4>,
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lighting: vec4<f32>,
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visual_style: vec4<f32>,
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visual_style_color: vec4<f32>,
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viewport_background: vec4<f32>,
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view_tone: vec4<f32>,
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background_top: vec4<f32>,
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background_middle: vec4<f32>,
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background_bottom: vec4<f32>,
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background_aux0: vec4<f32>,
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background_aux1: vec4<f32>,
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background_params: vec4<f32>,
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background_image_params: vec4<f32>,
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background_image_transform: vec4<f32>,
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environment_params: vec4<f32>,
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environment_view: mat4x4<f32>,
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shadow_view_proj: mat4x4<f32>,
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shadow_params: vec4<f32>,
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fog_color: vec4<f32>,
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fog_params: vec4<f32>,
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fog_distances: vec4<f32>,
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light_web_profile_a: array<vec4<f32>, 4>,
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light_web_profile_b: array<vec4<f32>, 4>,
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light_web_rotation: array<vec4<f32>, 4>,
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};
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struct MeshInstance {
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model_row_0: vec4<f32>,
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model_row_1: vec4<f32>,
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model_row_2: vec4<f32>,
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translation_low: vec4<f32>,
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normal_row_0: vec4<f32>,
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normal_row_1: vec4<f32>,
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normal_row_2: vec4<f32>,
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};
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@group(0) @binding(0) var<uniform> u: Uniforms;
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struct VertexIn {
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@location(0) position: vec3<f32>,
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@location(3) position_low: vec3<f32>,
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};
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struct InstanceIn {
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@location(4) model_row_0: vec4<f32>,
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@location(5) model_row_1: vec4<f32>,
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@location(7) model_row_2: vec4<f32>,
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@location(8) translation_low: vec4<f32>,
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};
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@vertex
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fn vs_main(
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vertex: VertexIn,
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instance: InstanceIn,
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) -> @builtin(position) vec4<f32> {
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let world_high = vec3<f32>(
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dot(instance.model_row_0.xyz, vertex.position) + instance.model_row_0.w,
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dot(instance.model_row_1.xyz, vertex.position) + instance.model_row_1.w,
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dot(instance.model_row_2.xyz, vertex.position) + instance.model_row_2.w,
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);
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let world_low = vec3<f32>(
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dot(instance.model_row_0.xyz, vertex.position_low),
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dot(instance.model_row_1.xyz, vertex.position_low),
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dot(instance.model_row_2.xyz, vertex.position_low),
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) + instance.translation_low.xyz;
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let relative = (world_high - u.eye_high) + (world_low - u.eye_low);
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return u.shadow_view_proj * vec4<f32>(relative, 1.0);
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}
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