WebGPU Example Simple uncluttered example no libraries just raw WebGPU Key details Loading model index buffer faces vertices normals depth buffer shaders Transforms uniforms document body style height 600px test models armadillo json beast json beetle alt json cow json fandisk json happy json horse json igea json lucy json max planck json ogre json spot json stanford bunny json teapot json xyzrgb dragon json cheburashka json skull json get some model data use json as it s easy to load setup let response await fetch var scripts cow json let json await response json console log vertices json vertices length console log faces json faces length console log normals json normals length get some bounds for the model doesn t go off screen let min x 10000 y 10000 z 10000 let max x 10000 y 10000 z 10000 for let i 0 i json vertices length 3 i min x Math min min x json vertices i 3 0 min y Math min min y json vertices i 3 1 min z Math min min z json vertices i 3 2 max x Math max max x json vertices i 3 0 max y Math max max y json vertices i 3 1 max z Math max max z json vertices i 3 2 let delta x max x min x y max y min y z max z min z let middle x min x delta x 0 5 y min y delta y 0 5 z min z delta z 0 5 let dist Math sqrt delta x delta x delta y delta y delta z delta z console log model size dist console log min min x min y min z console log max max x max y max z console log middle middle x middle y middle z var script document createElement script script type text javascript script async false script src https cdnjs cloudflare com ajax libs gl matrix 2 6 0 gl matrix min js document head appendChild script let canvas document createElement canvas document body appendChild canvas canvas width 600 canvas height 600 const adapter await navigator gpu requestAdapter const device await adapter requestDevice const context canvas getContext webgpu const presentationSize canvas width window devicePixelRatio canvas height window devicePixelRatio const presentationFormat context getPreferredFormat adapter const projectionMatrix mat4 create const viewMatrix mat4 create const modelMatrix mat4 create const viewProjectionMatrix mat4 create const mvpMatrix mat4 create const rotation 0 0 0 mat4 perspective projectionMatrix Math PI 2 canvas width canvas height 0 001 500 0 mat4 lookAt viewMatrix middle x middle y middle z dist 0 6 middle x middle y middle z 0 1 0 mat4 multiply viewProjectionMatrix projectionMatrix viewMatrix const uniformData new Float32Array ModelViewProjection Matrix Identity 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 Declare buffer handles let uniformBuffer createBuffer uniformData GPUBufferUsage UNIFORM GPUBufferUsage COPY DST const uniformBuffer device createBuffer size 64 usage GPUBufferUsage UNIFORM GPUBufferUsage COPY DST device queue writeBuffer uniformBuffer 0 viewProjectionMatrix const sceneUniformBindGroupLayout device createBindGroupLayout entries binding 0 visibility GPUShaderStage VERTEX buffer type uniform const sceneUniformBindGroup device createBindGroup layout sceneUniformBindGroupLayout entries binding 0 resource buffer uniformBuffer context configure device device format presentationFormat size presentationSize const vertWGSL block struct Uniforms modelViewProjectionMatrix mat4x4 f32 binding 0 group 0 var uniform uniforms Uniforms struct VSOut builtin position Position vec4 f32 location 0 pos vec3 f32 stage vertex fn main location 0 inPos vec3 f32 location 1 normal vec3 f32 VSOut var vsOut VSOut vsOut Position uniforms modelViewProjectionMatrix vec4 f32 inPos 1 0 vsOut pos inPos return vsOut const fragWGSL stage fragment fn main location 0 pos vec3 f32 location 0 vec4 f32 return vec4 f32 pos 0 3 1 0 return vec4 f32 1 0 0 0 0 0 1 0 const positions new Float32Array json vertices const normals new Float32Array json normals const indices new Uint16Array json faces const createBuffer arrData usage const buffer device createBuffer size arrData byteLength 3 3 usage usage mappedAtCreation true if arrData instanceof Float32Array new Float32Array buffer getMappedRange set arrData else new Uint16Array buffer getMappedRange set arrData buffer unmap return buffer Declare buffer handles GPUBuffer var positionBuffer createBuffer positions GPUBufferUsage VERTEX var normalBuffer createBuffer normals GPUBufferUsage VERTEX var indexBuffer createBuffer indices GPUBufferUsage INDEX const pipeline device createRenderPipeline layout device createPipelineLayout bindGroupLayouts sceneUniformBindGroupLayout vertex module device createShaderModule code vertWGSL entryPoint main buffers arrayStride 12 attributes shaderLocation 0 format float32x3 offset 0 arrayStride 12 attributes shaderLocation 1 format float32x3 offset 0 fragment module device createShaderModule code fragWGSL entryPoint main targets format presentationFormat primitive topology triangle list frontFace ccw cullMode back depthStencil format depth24plus depthWriteEnabled true depthCompare less const texture device createTexture size presentationSize sampleCount 4 format presentationFormat usage GPUTextureUsage RENDER ATTACHMENT const view texture createView const depthTexture device createTexture size canvas width canvas height 1 format depth24plus usage GPUTextureUsage RENDER ATTACHMENT const renderPassDescription colorAttachments view context getCurrentTexture createView loadValue 0 8 0 5 0 8 1 clear screen to green storeOp store depthStencilAttachment view depthTexture createView depthLoadValue 1 depthStoreOp store stencilLoadValue 0 stencilStoreOp store function frame device queue writeBuffer uniformBuffer 0 viewProjectionMatrix renderPassDescription colorAttachments 0 view context getCurrentTexture createView const commandEncoder device createCommandEncoder const renderPass commandEncoder beginRenderPass renderPassDescription renderPass setPipeline pipeline renderPass setVertexBuffer 0 positionBuffer renderPass setVertexBuffer 1 normalBuffer renderPass setIndexBuffer indexBuffer uint16 renderPass setBindGroup 0 sceneUniformBindGroup renderPass drawIndexed json faces length 1 renderPass endPass device queue submit commandEncoder finish frame onmousemove function frame console log ready
rms Uniforms struct VSOut builtin position Position vec4 f32 location 0 pos vec3 f32 stage vertex fn main location 0 inPos vec3 f32 location 1 normal vec3 f32 VSOut var vsOut VSOut vsOut Position uniforms modelViewProjectionMatrix vec4 f32 inPos 1 0 vsOut pos inPos return vsOut const fragWGSL stage fragment fn main location 0 pos vec3 f32 location 0 vec4 f32 return vec4 f32 pos 0 3 1 0 return vec4 f32 1 0 0 0 0 0 1 0 const positions new Float32Array json vertices const normals new Float32Array json normals const indices new Uint16Array json faces const createBuffer arrData usage const buffer device createBuffer size arrData byteLength 3 3 usage usage mappedAtCreation true if arrData instanceof Float32Array new Float32Array buffer getMappedRange set arrData else new Uint16Array buffer getMappedRange set arrData buffer unmap return buffer Declare buffer handles GPUBuffer var positionBuffer createBuffer positions GPUBufferUsage VERTEX var normalBuffer createBuffer normals GPUBufferUsage VERTEX var indexBuffer createBuffer indices GPUBufferUsage INDEX const pipeline device createRenderPipeline layout device createPipelineLayout bindGroupLayouts sceneUniformBindGroupLayout vertex module device createShaderModule code vertWGSL entryPoint main buffers arrayStride 12 attributes shaderLocation 0 format float32x3 offset 0 arrayStride 12 attributes shaderLocation 1 format float32x3 offset 0 fragment module device createShaderModule code fragWGSL entryPoint main targets format presentationFormat primitive topology triangle list frontFace ccw cullMode back depthStencil format depth24plus depthWriteEnabled true depthCompare less const texture device createTexture size presentationSize sampleCount 4 format presentationFormat usage GPUTextureUsage RENDER ATTACHMENT const view texture createView const depthTexture device createTexture size canvas width canvas height 1 format depth24plus usage GPUTextureUsage RENDER ATTACHMENT const renderPassDescription colorAttachments view context getCurrentTexture createView loadValue 0 8 0 5 0 8 1 clear screen to green storeOp store depthStencilAttachment view depthTexture createView depthLoadValue 1 depthStoreOp store stencilLoadValue 0 stencilStoreOp store function frame device queue writeBuffer uniformBuffer 0 viewProjectionMatrix renderPassDescription colorAttachments 0 view context getCurrentTexture createView const commandEncoder device createCommandEncoder const renderPass commandEncoder beginRenderPass renderPassDescription renderPass setPipeline pipeline renderPass setVertexBuffer 0 positionBuffer renderPass setVertexBuffer 1 normalBuffer renderPass setIndexBuffer indexBuffer uint16 renderPass setBindGroup 0 sceneUniformBindGroup renderPass drawIndexed json faces length 1 renderPass endPass device queue submit commandEncoder finish frame onmousemove function frame console log ready