Add WIP WebGPU spinning cube demo and glMatrix by JusSn · Pull Request #187 · gpuweb/gpuweb

JusSn · 2019-01-28T21:44:20Z

This is the current version of the demo I am targeting while implementing WebGPU in WebKit. It will be a port of the WebMetal demo that can be viewed in release Safari.

Commented code represents what still has to be added in WebKit. Some code may be unnecessary; such code will be removed when it is deemed so.

Also, many portions, such as buffer uploading, are out-of-date with the IDL or a simplified version of it. These will be updated as I get around to fixing their implementations.

Also included is the glMatrix matrix math library by Brandon Jones.

JusSn · 2019-01-28T21:49:08Z

The goal is to ensure we are on the same page with how the API is used. Please point out any mistakes!

magcius · 2019-01-29T03:27:19Z

+
+    const swapChainDescriptor = { 
+        device: device, 
+        format:"B8G8R8A8Unorm", 


Why is this BGRA instead of RGBA? What would change if you used the other?

This is sort of pending on figuring exactly how swapchain formats work, but we agreed in the meeting that there would be 2 always-supported formats (probably RGBA8 or BGRA8, and F16) and optionally some platform-specific "optimal" formats. This is needed for optimal interactions with the system's compositor/overlays.

It is more natural that the guaranteed 8bit format be RGBA8 but we could also guarantee BGRA8 because that's the optimal format on at least macOS and Windows.

Agreed, BGRA8 might be a better always-supported option for that reason.

Yes, CAMetalLayer doesn't natively support RGBA8. We'd have to do some conversion unless there is some magic I'm unaware of.

Also, it's BGRA8 because that's the only format I've tested. In addition, this field is currently ignored by the WebKit impl and I actually have it hard coded to BGRA8.

magcius · 2019-01-29T03:31:14Z

+    // Vertex attributes
+    passEncoder.setVertexBuffers(0, [verticesBuffer], [0]);
+    // Bind groups
+    passEncoder.setBindGroup(1, uniformsBindGroup);


I don't see where you populate bind group 0 with the transform bind group, nor where you create it.

Yeah this should be setting bindgroup 0 instead of 1

It's setting bindGroup 1 because I haven't added in the logic to allow bind group and vertex buffer indices to overlap on the Metal side. This corresponds to [[buffer(1)]] in the shader since setVertexBuffer(0) is called underneath the hood for the vertex input buffer.

magcius · 2019-01-29T03:32:09Z

+}
+
+function render() {
+    populateTransformArray(mappedTransformArray);


Don't you need a fence here or multiple buffers before you can modify the mapped transform array, given that it might still be in-flight from the previous frame?

I haven't looked at the example yet (replying from phone), but fences shouldn't be needed. Map operations are async and don't become available until the buffer is mappable. (that is, the synchronization is built in)

The example seems to persist a mapped buffer between frames, which seems wrong then.

[1] explicitly calls out that this will need to be updated once #147 is landed.

Yup, this is very wrong. We may need to "triple-buffer" this after implementing the mapping model we decided on.

Kangz

Looks good apart from some comments and the obvious missing parts.

The dictionaries could be inlined in many places to make the code more compact and arguable more readable. That said it seems ok to keep them separate since this is an example that doesn't run in any implementations yet.

Kangz · 2019-01-29T13:21:50Z

+    };
+    context.configure(swapChainDescriptor);
+
+    // WebKit WebGPU accepts only MSL for now.


Let's be more explicit and call out that we didn't decide which language WebGPU ingests yet.

+1, it would be nice to have a big scary warning around the shader before we merge it in. It should also specify that the API will definitely not accept Metal SL.

Yep, this is only for our WIP version in WebKit.

Kangz · 2019-01-29T13:23:22Z

+}
+
+async function init() {
+    const adapter = await webgpu.requestAdapter({}); // Current (unifinished) implementation of requestAdapter requires this argument.


requestAdapter() should probably work too, we should make the argument optional if it isn't already.

It's on my to-do list!

Kangz · 2019-01-29T13:24:12Z

+    const aspect = Math.abs(canvas.width / canvas.height);
+    mat4.perspective(projectionMatrix, (2 * Math.PI) / 5, aspect, 1, 100.0);
+
+    context = canvas.getContext('webgpu');


This would probably be getContext("gpu"), see #131

Kangz · 2019-01-29T13:25:52Z

+
+    const swapChainDescriptor = { 
+        device: device, 
+        format:"B8G8R8A8Unorm", 


It is more natural that the guaranteed 8bit format be RGBA8 but we could also guarantee BGRA8 because that's the optimal format on at least macOS and Windows.

Kangz · 2019-01-29T13:26:28Z

+    const swapChainDescriptor = { 
+        device: device, 
+        format:"B8G8R8A8Unorm", 
+        width: canvas.width, 


The width and height aren't needed: the drawing buffer size is controlled via the canvas width and height members.

Kangz · 2019-01-29T13:34:25Z

+        // *depthStencilAttachment: depthAttachment
+    };
+
+    queue = device.getQueue();


Not a fan of getQueue but we'll revisit this anyway when we discuss multi-queue.

Kangz · 2019-01-29T13:35:51Z

+    // Vertex attributes
+    passEncoder.setVertexBuffers(0, [verticesBuffer], [0]);
+    // Bind groups
+    passEncoder.setBindGroup(1, uniformsBindGroup);


Yeah this should be setting bindgroup 0 instead of 1

Kangz · 2019-01-29T13:37:16Z

+        width: canvas.width, 
+        height: canvas.height 
+    };
+    context.configure(swapChainDescriptor);


This should be updated to match what we discussed for swapchains in the second day of the F2F.

On the list!

Kangz · 2019-01-29T13:37:19Z

+
+    passEncoder.draw(36, 1, 0, 0);
+
+    const endCommandBuffer = passEncoder.endPass();


endPass's return value was removed, you can just use commandBuffer instead.

Kangz · 2019-01-29T13:37:35Z

+
+    const endCommandBuffer = passEncoder.endPass();
+    queue.submit([endCommandBuffer]);
+    context.present();


This would be on the swapchain object and not the rendering context itself.

JusSn · 2019-01-29T20:31:10Z

Thanks everyone for the comments! The WebKit implementation is definitely not up-to-date with the latest IDL decisions and will be fixed up to match the (impending) snapshot over the next couple of weeks. I think it would be better to leave this demo on my own fork until it matches the snapshot so as not to confuse anyone outside of the implementation loop. For now, though, I'd like it to continue to reflect what works in our internal builds of Safari.

Alternately, I can write a different version that incorporates everything covered here and create a PR.

If you are curious about this one, the latest version will be available on my fork of gpuweb.

JusSn · 2019-01-29T20:33:42Z

On second thought, I will leave this PR open. Any fixes made to this demo will reflect my working progress and the goal is eventually to merge in a conformant Web GPU demo. If we'd like this closed for now, I don't mind.

kvark · 2019-01-29T20:34:11Z

nit: I'd rather not commit the commented out code, we should add it here when it's functional.

JusSn · 2019-01-29T20:38:40Z

nit: I'd rather not commit the commented out code, we should add it here when it's functional.

Noted. The goal is to commit a finished version that works in at least one implementation (Safari in this case). This may take weeks, so we can either leave this PR open to track my progress, or close it for now.

kainino0x · 2019-01-29T20:41:37Z

+        1, 1, -1, 1, 1, 1, 0, 1,
+        1, -1, -1, 1, 1, 0, 0, 1,
+        -1, 1, -1, 1, 0, 1, 0, 1,
+    ];


This could be stored as a Float32Array, and populateVertexArray would just become mappedArray.set(vertexData, 0);

kainino0x · 2019-01-29T20:44:40Z

I think it would be nice to take the demo you have written, and turn it into a "reference" sample, such that it should work on future implementations. (i.e. uncomment commented code, use the agreed-upon bindings, do any necessary renames, and ideally use WHLSL).

Then also keep your version which runs on your real implementation. Hopefully, they should eventually converge, but if we have to fix up the reference sample, that's no problem.

You can decide if this is the route you want to take.

JusSn · 2019-01-29T20:47:51Z

I think it would be nice to take the demo you have written, and turn it into a "reference" sample, such that it should work on future implementations. (i.e. uncomment commented code, use the agreed-upon bindings, do any necessary renames, and ideally use WHLSL).

Then also keep your version which runs on your real implementation. Hopefully, they should eventually converge, but if we have to fix up the reference sample, that's no problem.

You can decide if this is the route you want to take.

Yep, this is what I'm leaning towards doing via the "different version" I mentioned earlier. This reference sample may not also be perfect: we could run into implementation issues down the line that we aren't aware of now, but we can update it to match.

Will comment here with a link to the reference version PR. Unfortunately I've never written (W)HLSL, so I have to learn first.

JusSn · 2019-02-01T01:40:11Z

The reference version of this demo is updated here, but isn't ready for PR yet.

grovesNL · 2019-02-01T02:02:05Z

@JusSn nit: there are some constants like FLOAT_R32_G32_B32_A32 which should be strings instead

JusSn · 2019-02-11T01:27:10Z

I've finished my draft of the reference and opened #209.

kdashg · 2019-02-14T17:59:55Z

+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE. */
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t[0]=i*(h*m-l*b)-M*(s*m-c*b)+d*(s*l-c*h),t[1]=-(a*(h*m-l*b)-M*(e*m-u*b)+d*(e*l-u*h)),t[2]=a*(s*m-c*b)-i*(e*m-u*b)+d*(e*c-u*s),t[3]=-(a*(s*l-c*h)-i*(e*l-u*h)+M*(e*c-u*s)),t[4]=-(o*(h*m-l*b)-f*(s*m-c*b)+v*(s*l-c*h)),t[5]=r*(h*m-l*b)-f*(e*m-u*b)+v*(e*l-u*h),t[6]=-(r*(s*m-c*b)-o*(e*m-u*b)+v*(e*c-u*s)),t[7]=r*(s*l-c*h)-o*(e*l-u*h)+f*(e*c-u*s),t[8]=o*(M*m-l*d)-f*(i*m-c*d)+v*(i*l-c*M),t[9]=-(r*(M*m-l*d)-f*(a*m-u*d)+v*(a*l-u*M)),t[10]=r*(i*m-c*d)-o*(a*m-u*d)+v*(a*c-u*i),t[11]=-(r*(i*l-c*M)-o*(a*l-u*M)+f*(a*c-u*i)),t[12]=-(o*(M*b-h*d)-f*(i*b-s*d)+v*(i*h-s*M)),t[13]=r*(M*b-h*d)-f*(a*b-e*d)+v*(a*h-e*M),t[14]=-(r*(i*b-s*d)-o*(a*b-e*d)+v*(a*s-e*i)),t[15]=r*(i*h-s*M)-o*(a*h-e*M)+f*(a*s-e*i),t}function h(t){var n=t[0],r=t[1],a=t[2],e=t[3],u=t[4],o=t[5],i=t[6],s=t[7],c=t[8],f=t[9],M=t[10],h=t[11],l=t[12],v=t[13],d=t[14],b=t[15];return(n*o-r*u)*(M*b-h*d)-(n*i-a*u)*(f*b-h*v)+(n*s-e*u)*(f*d-M*v)+(r*i-a*o)*(c*b-h*l)-(r*s-e*o)*(c*d-M*l)+(a*s-e*i)*(c*v-f*l)}function l(t,n,r){var a=n[0],e=n[1],u=n[2],o=n[3],i=n[4],s=n[5],c=n[6],f=n[7],M=n[8],h=n[9],l=n[10],v=n[11],d=n[12],b=n[13],m=n[14],p=n[15],P=r[0],E=r[1],O=r[2],x=r[3];return t[0]=P*a+E*i+O*M+x*d,t[1]=P*e+E*s+O*h+x*b,t[2]=P*u+E*c+O*l+x*m,t[3]=P*o+E*f+O*v+x*p,P=r[4],E=r[5],O=r[6],x=r[7],t[4]=P*a+E*i+O*M+x*d,t[5]=P*e+E*s+O*h+x*b,t[6]=P*u+E*c+O*l+x*m,t[7]=P*o+E*f+O*v+x*p,P=r[8],E=r[9],O=r[10],x=r[11],t[8]=P*a+E*i+O*M+x*d,t[9]=P*e+E*s+O*h+x*b,t[10]=P*u+E*c+O*l+x*m,t[11]=P*o+E*f+O*v+x*p,P=r[12],E=r[13],O=r[14],x=r[15],t[12]=P*a+E*i+O*M+x*d,t[13]=P*e+E*s+O*h+x*b,t[14]=P*u+E*c+O*l+x*m,t[15]=P*o+E*f+O*v+x*p,t}function v(t,n,r){var a=r[0],e=r[1],u=r[2],o=void 0,i=void 0,s=void 0,c=void 0,f=void 0,M=void 0,h=void 0,l=void 0,v=void 0,d=void 0,b=void 0,m=void 0;return n===t?(t[12]=n[0]*a+n[4]*e+n[8]*u+n[12],t[13]=n[1]*a+n[5]*e+n[9]*u+n[13],t[14]=n[2]*a+n[6]*e+n[10]*u+n[14],t[15]=n[3]*a+n[7]*e+n[11]*u+n[15]):(o=n[0],i=n[1],s=n[2],c=n[3],f=n[4],M=n[5],h=n[6],l=n[7],v=n[8],d=n[9],b=n[10],m=n[11],t[0]=o,t[1]=i,t[2]=s,t[3]=c,t[4]=f,t[5]=M,t[6]=h,t[7]=l,t[8]=v,t[9]=d,t[10]=b,t[11]=m,t[12]=o*a+f*e+v*u+n[12],t[13]=i*a+M*e+d*u+n[13],t[14]=s*a+h*e+b*u+n[14],t[15]=c*a+l*e+m*u+n[15]),t}function d(t,n,r){var a=r[0],e=r[1],u=r[2];return t[0]=n[0]*a,t[1]=n[1]*a,t[2]=n[2]*a,t[3]=n[3]*a,t[4]=n[4]*e,t[5]=n[5]*e,t[6]=n[6]*e,t[7]=n[7]*e,t[8]=n[8]*u,t[9]=n[9]*u,t[10]=n[10]*u,t[11]=n[11]*u,t[12]=n[12],t[13]=n[13],t[14]=n[14],t[15]=n[15],t}function b(t,n,r,a){var e=a[0],u=a[1],o=a[2],i=Math.sqrt(e*e+u*u+o*o),s=void 0,c=void 0,f=void 0,M=void 0,h=void 0,l=void 0,v=void 0,d=void 0,b=void 0,m=void 0,p=void 0,P=void 0,E=void 0,O=void 0,x=void 0,A=void 0,q=void 0,y=void 0,w=void 0,R=void 0,L=void 0,S=void 0,_=void 0,I=void 0;return Math.abs(i)<C.EPSILON?null:(i=1/i,e*=i,u*=i,o*=i,s=Math.sin(r),c=Math.cos(r),f=1-c,M=n[0],h=n[1],l=n[2],v=n[3],d=n[4],b=n[5],m=n[6],p=n[7],P=n[8],E=n[9],O=n[10],x=n[11],A=e*e*f+c,q=u*e*f+o*s,y=o*e*f-u*s,w=e*u*f-o*s,R=u*u*f+c,L=o*u*f+e*s,S=e*o*f+u*s,_=u*o*f-e*s,I=o*o*f+c,t[0]=M*A+d*q+P*y,t[1]=h*A+b*q+E*y,t[2]=l*A+m*q+O*y,t[3]=v*A+p*q+x*y,t[4]=M*w+d*R+P*L,t[5]=h*w+b*R+E*L,t[6]=l*w+m*R+O*L,t[7]=v*w+p*R+x*L,t[8]=M*S+d*_+P*I,t[9]=h*S+b*_+E*I,t[10]=l*S+m*_+O*I,t[11]=v*S+p*_+x*I,n!==t&&(t[12]=n[12],t[13]=n[13],t[14]=n[14],t[15]=n[15]),t)}function m(t,n,r){var a=Math.sin(r),e=Math.cos(r),u=n[4],o=n[5],i=n[6],s=n[7],c=n[8],f=n[9],M=n[10],h=n[11];return n!==t&&(t[0]=n[0],t[1]=n[1],t[2]=n[2],t[3]=n[3],t[12]=n[12],t[13]=n[13],t[14]=n[14],t[15]=n[15]),t[4]=u*e+c*a,t[5]=o*e+f*a,t[6]=i*e+M*a,t[7]=s*e+h*a,t[8]=c*e-u*a,t[9]=f*e-o*a,t[10]=M*e-i*a,t[11]=h*e-s*a,t}function p(t,n,r){var a=Math.sin(r),e=Math.cos(r),u=n[0],o=n[1],i=n[2],s=n[3],c=n[8],f=n[9],M=n[10],h=n[11];return n!==t&&(t[4]=n[4],t[5]=n[5],t[6]=n[6],t[7]=n[7],t[12]=n[12],t[13]=n[13],t[14]=n[14],t[15]=n[15]),t[0]=u*e-c*a,t[1]=o*e-f*a,t[2]=i*e-M*a,t[3]=s*e-h*a,t[8]=u*a+c*e,t[9]=o*a+f*e,t[10]=i*a+M*e,t[11]=s*a+h*e,t}function P(t,n,r){var a=Math.sin(r),e=Math.cos(r),u=n[0],o=n[1],i=n[2],s=n[3],c=n[4],f=n[5],M=n[6],h=n[7];return n!==t&&(t[8]=n[8],t[9]=n[9],t[10]=n[10],t[11]=n[11],t[12]=n[12],t[13]=n[13],t[14]=n[14],t[15]=n[15]),t[0]=u*e+c*a,t[1]=o*e+f*a,t[2]=i*e+M*a,t[3]=s*e+h*a,t[4]=c*e-u*a,t[5]=f*e-o*a,t[6]=M*e-i*a,t[7]=h*e-s*a,t}function E(t,n){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=n[0],t[13]=n[1],t[14]=n[2],t[15]=1,t}function O(t,n){return t[0]=n[0],t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=n[1],t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=n[2],t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t}function x(t,n,r){var a=r[0],e=r[1],u=r[2],o=Math.sqrt(a*a+e*e+u*u),i=void 0,s=void 0,c=void 0;return Math.abs(o)<C.EPSILON?null:(o=1/o,a*=o,e*=o,u*=o,i=Math.sin(n),s=Math.cos(n),c=1-s,t[0]=a*a*c+s,t[1]=e*a*c+u*i,t[2]=u*a*c-e*i,t[3]=0,t[4]=a*e*c-u*i,t[5]=e*e*c+s,t[6]=u*e*c+a*i,t[7]=0,t[8]=a*u*c+e*i,t[9]=e*u*c-a*i,t[10]=u*u*c+s,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t)}function A(t,n){var r=Math.sin(n),a=Math.cos(n);return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=a,t[6]=r,t[7]=0,t[8]=0,t[9]=-r,t[10]=a,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t}function q(t,n){var r=Math.sin(n),a=Math.cos(n);return t[0]=a,t[1]=0,t[2]=-r,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=r,t[9]=0,t[10]=a,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t}function y(t,n){var r=Math.sin(n),a=Math.cos(n);return t[0]=a,t[1]=r,t[2]=0,t[3]=0,t[4]=-r,t[5]=a,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t}function w(t,n,r){var a=n[0],e=n[1],u=n[2],o=n[3],i=a+a,s=e+e,c=u+u,f=a*i,M=a*s,h=a*c,l=e*s,v=e*c,d=u*c,b=o*i,m=o*s,p=o*c;return t[0]=1-(l+d),t[1]=M+p,t[2]=h-m,t[3]=0,t[4]=M-p,t[5]=1-(f+d),t[6]=v+b,t[7]=0,t[8]=h+m,t[9]=v-b,t[10]=1-(f+l),t[11]=0,t[12]=r[0],t[13]=r[1],t[14]=r[2],t[15]=1,t}function R(t,n){return t[0]=n[12],t[1]=n[13],t[2]=n[14],t}function L(t,n){var r=n[0],a=n[1],e=n[2],u=n[4],o=n[5],i=n[6],s=n[8],c=n[9],f=n[10];return t[0]=Math.sqrt(r*r+a*a+e*e),t[1]=Math.sqrt(u*u+o*o+i*i),t[2]=Math.sqrt(s*s+c*c+f*f),t}function S(t,n){var r=n[0]+n[5]+n[10],a=0;return r>0?(a=2*Math.sqrt(r+1),t[3]=.25*a,t[0]=(n[6]-n[9])/a,t[1]=(n[8]-n[2])/a,t[2]=(n[1]-n[4])/a):n[0]>n[5]&n[0]>n[10]?(a=2*Math.sqrt(1+n[0]-n[5]-n[10]),t[3]=(n[6]-n[9])/a,t[0]=.25*a,t[1]=(n[1]+n[4])/a,t[2]=(n[8]+n[2])/a):n[5]>n[10]?(a=2*Math.sqrt(1+n[5]-n[0]-n[10]),t[3]=(n[8]-n[2])/a,t[0]=(n[1]+n[4])/a,t[1]=.25*a,t[2]=(n[6]+n[9])/a):(a=2*Math.sqrt(1+n[10]-n[0]-n[5]),t[3]=(n[1]-n[4])/a,t[0]=(n[8]+n[2])/a,t[1]=(n[6]+n[9])/a,t[2]=.25*a),t}function _(t,n,r,a){var e=n[0],u=n[1],o=n[2],i=n[3],s=e+e,c=u+u,f=o+o,M=e*s,h=e*c,l=e*f,v=u*c,d=u*f,b=o*f,m=i*s,p=i*c,P=i*f,E=a[0],O=a[1],x=a[2];return t[0]=(1-(v+b))*E,t[1]=(h+P)*E,t[2]=(l-p)*E,t[3]=0,t[4]=(h-P)*O,t[5]=(1-(M+b))*O,t[6]=(d+m)*O,t[7]=0,t[8]=(l+p)*x,t[9]=(d-m)*x,t[10]=(1-(M+v))*x,t[11]=0,t[12]=r[0],t[13]=r[1],t[14]=r[2],t[15]=1,t}function I(t,n,r,a,e){var u=n[0],o=n[1],i=n[2],s=n[3],c=u+u,f=o+o,M=i+i,h=u*c,l=u*f,v=u*M,d=o*f,b=o*M,m=i*M,p=s*c,P=s*f,E=s*M,O=a[0],x=a[1],A=a[2],q=e[0],y=e[1],w=e[2];return t[0]=(1-(d+m))*O,t[1]=(l+E)*O,t[2]=(v-P)*O,t[3]=0,t[4]=(l-E)*x,t[5]=(1-(h+m))*x,t[6]=(b+p)*x,t[7]=0,t[8]=(v+P)*A,t[9]=(b-p)*A,t[10]=(1-(h+d))*A,t[11]=0,t[12]=r[0]+q-(t[0]*q+t[4]*y+t[8]*w),t[13]=r[1]+y-(t[1]*q+t[5]*y+t[9]*w),t[14]=r[2]+w-(t[2]*q+t[6]*y+t[10]*w),t[15]=1,t}function N(t,n){var r=n[0],a=n[1],e=n[2],u=n[3],o=r+r,i=a+a,s=e+e,c=r*o,f=a*o,M=a*i,h=e*o,l=e*i,v=e*s,d=u*o,b=u*i,m=u*s;return t[0]=1-M-v,t[1]=f+m,t[2]=h-b,t[3]=0,t[4]=f-m,t[5]=1-c-v,t[6]=l+d,t[7]=0,t[8]=h+b,t[9]=l-d,t[10]=1-c-M,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t}function Y(t,n,r,a,e,u,o){var i=1/(r-n),s=1/(e-a),c=1/(u-o);return t[0]=2*u*i,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=2*u*s,t[6]=0,t[7]=0,t[8]=(r+n)*i,t[9]=(e+a)*s,t[10]=(o+u)*c,t[11]=-1,t[12]=0,t[13]=0,t[14]=o*u*2*c,t[15]=0,t}function g(t,n,r,a,e){var u=1/Math.tan(n/2),o=1/(a-e);return t[0]=u/r,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=u,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=(e+a)*o,t[11]=-1,t[12]=0,t[13]=0,t[14]=2*e*a*o,t[15]=0,t}function T(t,n,r,a){var e=Math.tan(n.upDegrees*Math.PI/180),u=Math.tan(n.downDegrees*Math.PI/180),o=Math.tan(n.leftDegrees*Math.PI/180),i=Math.tan(n.rightDegrees*Math.PI/180),s=2/(o+i),c=2/(e+u);return t[0]=s,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=c,t[6]=0,t[7]=0,t[8]=-(o-i)*s*.5,t[9]=(e-u)*c*.5,t[10]=a/(r-a),t[11]=-1,t[12]=0,t[13]=0,t[14]=a*r/(r-a),t[15]=0,t}function j(t,n,r,a,e,u,o){var i=1/(n-r),s=1/(a-e),c=1/(u-o);return t[0]=-2*i,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=-2*s,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=2*c,t[11]=0,t[12]=(n+r)*i,t[13]=(e+a)*s,t[14]=(o+u)*c,t[15]=1,t}function D(t,n,r,a){var e=void 0,u=void 0,o=void 0,i=void 0,s=void 0,c=void 0,f=void 0,M=void 0,h=void 0,l=void 0,v=n[0],d=n[1],b=n[2],m=a[0],p=a[1],P=a[2],E=r[0],O=r[1],x=r[2];return Math.abs(v-E)<C.EPSILON&&Math.abs(d-O)<C.EPSILON&&Math.abs(b-x)<C.EPSILON?mat4.identity(t):(f=v-E,M=d-O,h=b-x,l=1/Math.sqrt(f*f+M*M+h*h),f*=l,M*=l,h*=l,e=p*h-P*M,u=P*f-m*h,o=m*M-p*f,l=Math.sqrt(e*e+u*u+o*o),l?(l=1/l,e*=l,u*=l,o*=l):(e=0,u=0,o=0),i=M*o-h*u,s=h*e-f*o,c=f*u-M*e,l=Math.sqrt(i*i+s*s+c*c),l?(l=1/l,i*=l,s*=l,c*=l):(i=0,s=0,c=0),t[0]=e,t[1]=i,t[2]=f,t[3]=0,t[4]=u,t[5]=s,t[6]=M,t[7]=0,t[8]=o,t[9]=c,t[10]=h,t[11]=0,t[12]=-(e*v+u*d+o*b),t[13]=-(i*v+s*d+c*b),t[14]=-(f*v+M*d+h*b),t[15]=1,t)}function V(t,n,r,a){var e=n[0],u=n[1],o=n[2],i=a[0],s=a[1],c=a[2],f=e-r[0],M=u-r[1],h=o-r[2],l=f*f+M*M+h*h;l>0&&(l=1/Math.sqrt(l),f*=l,M*=l,h*=l);var v=s*h-c*M,d=c*f-i*h,b=i*M-s*f;return t[0]=v,t[1]=d,t[2]=b,t[3]=0,t[4]=M*b-h*d,t[5]=h*v-f*b,t[6]=f*d-M*v,t[7]=0,t[8]=f,t[9]=M,t[10]=h,t[11]=0,t[12]=e,t[13]=u,t[14]=o,t[15]=1,t}function z(t){return"mat4("+t[0]+", "+t[1]+", "+t[2]+", "+t[3]+", "+t[4]+", "+t[5]+", "+t[6]+", "+t[7]+", "+t[8]+", "+t[9]+", "+t[10]+", "+t[11]+", "+t[12]+", "+t[13]+", "+t[14]+", "+t[15]+")"}function F(t){return Math.sqrt(Math.pow(t[0],2)+Math.pow(t[1],2)+Math.pow(t[2],2)+Math.pow(t[3],2)+Math.pow(t[4],2)+Math.pow(t[5],2)+Math.pow(t[6],2)+Math.pow(t[7],2)+Math.pow(t[8],2)+Math.pow(t[9],2)+Math.pow(t[10],2)+Math.pow(t[11],2)+Math.pow(t[12],2)+Math.pow(t[13],2)+Math.pow(t[14],2)+Math.pow(t[15],2))}function Q(t,n,r){return t[0]=n[0]+r[0],t[1]=n[1]+r[1],t[2]=n[2]+r[2],t[3]=n[3]+r[3],t[4]=n[4]+r[4],t[5]=n[5]+r[5],t[6]=n[6]+r[6],t[7]=n[7]+r[7],t[8]=n[8]+r[8],t[9]=n[9]+r[9],t[10]=n[10]+r[10],t[11]=n[11]+r[11],t[12]=n[12]+r[12],t[13]=n[13]+r[13],t[14]=n[14]+r[14],t[15]=n[15]+r[15],t}function X(t,n,r){return 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Let's avoid minimized code in demos and tests.

kainino0x · 2019-03-27T15:38:45Z

It seems like this one has been replaced by #209; please reopen if needed.

) * standalone: add rudimentary collapsing, start with files collapsed, make buttons smaller Unfortunately, still can't lazily create DOM subtrees, so page loading is still very slow. It's not easy to do so, because the "run subtree" button (as implemented) depends on the tree already being processed. (However it could be done without generating the actual DOM.) This page needs more serious overhauling. * revise

Added cube demo files

b02553e

JusSn changed the title ~~Add WIP WebGPU spinning cube demo~~ Add WIP WebGPU spinning cube demo and glMatrix Jan 28, 2019

magcius reviewed Jan 29, 2019

View reviewed changes

Kangz reviewed Jan 29, 2019

View reviewed changes

JusSn closed this Jan 29, 2019

JusSn reopened this Jan 29, 2019

kainino0x reviewed Jan 29, 2019

View reviewed changes

Justin Fan added 2 commits January 29, 2019 13:44

Simplify depthStencilStateDescriptor

91b6715

adapter update

68352d6

Justin Fan added 2 commits January 31, 2019 19:32

Simplify remaining commented code to prep for depthTexture updates

68ac2bb

Now working with depth

bc5af5c

kdashg requested changes Feb 14, 2019

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Justin Fan added 2 commits February 14, 2019 12:47

Updated for mapWriteAsync prototype

9d06709

Populate vertex buffer using setSubData

0d3c7bf

kainino0x closed this Mar 27, 2019


		passEncoder.draw(36, 1, 0, 0);

		const endCommandBuffer = passEncoder.endPass();

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