docs/primitives/a-circle.md
The circle primitive creates circles surfaces using the geometry
component with the type set to circle.
<a-scene>
<a-assets>
</a-assets>
<!-- Basic circle. -->
<a-circle color="#CCC" radius="20"></a-circle>
<!-- Textured circle parallel to ground. -->
<a-circle src="#platform" radius="50" rotation="-90 0 0"></a-circle>
</a-scene>
| Attribute | Component Mapping | Default Value |
|---|---|---|
| alpha-test | material.alphaTest | 0 |
| ambient-occlusion-map | material.ambientOcclusionMap | None |
| ambient-occlusion-map-intensity | material.ambientOcclusionMapIntensity | 1 |
| ambient-occlusion-texture-offset | material.ambientOcclusionTextureOffset | 0 0 |
| ambient-occlusion-texture-repeat | material.ambientOcclusionTextureRepeat | 1 1 |
| anisotropy | material.anisotropy | 0 |
| blending | material.blending | normal |
| color | material.color | #FFF |
| depth-test | material.depthTest | true |
| depth-write | material.depthWrite | true |
| displacement-bias | material.displacementBias | 0.5 |
| displacement-map | material.displacementMap | None |
| displacement-scale | material.displacementScale | 1 |
| displacement-texture-offset | material.displacementTextureOffset | 0 0 |
| displacement-texture-repeat | material.displacementTextureRepeat | 1 1 |
| dithering | material.dithering | true |
| emissive | material.emissive | #000 |
| emissive-intensity | material.emissiveIntensity | 1 |
| env-map | material.envMap | None |
| flat-shading | material.flatShading | false |
| mag-filter | material.magFilter | linear |
| material-fog | material.fog | true |
| material-visible | material.visible | true |
| metalness | material.metalness | 0 |
| metalness-map | material.metalnessMap | None |
| metalness-texture-offset | material.metalnessTextureOffset | 0 0 |
| metalness-texture-repeat | material.metalnessTextureRepeat | 1 1 |
| min-filter | material.minFilter | linear-mipmap-linear |
| normal-map | material.normalMap | None |
| normal-scale | material.normalScale | 1 1 |
| normal-texture-offset | material.normalTextureOffset | 0 0 |
| normal-texture-repeat | material.normalTextureRepeat | 1 1 |
| offset | material.offset | 0 0 |
| opacity | material.opacity | 1 |
| radius | geometry.radius | 1 |
| repeat | material.repeat | 1 1 |
| roughness | material.roughness | 0.5 |
| roughness-map | material.roughnessMap | None |
| roughness-texture-offset | material.roughnessTextureOffset | 0 0 |
| roughness-texture-repeat | material.roughnessTextureRepeat | 1 1 |
| segments | geometry.segments | 32 |
| shader | material.shader | standard |
| side | material.side | front |
| spherical-env-map | material.sphericalEnvMap | None |
| src | material.src | None |
| theta-length | geometry.thetaLength | 360 |
| theta-start | geometry.thetaStart | 0 |
| transparent | material.transparent | false |
| vertex-colors-enabled | material.vertexColorsEnabled | false |
| wireframe | material.wireframe | false |
| wireframe-linewidth | material.wireframeLinewidth | 2 |
To make a circle parallel to the ground, rotate it around the X-axis:
<a-circle rotation="-90 0 0"></a-circle>