DebugAppearance

new DebugAppearance()

Visualizes a vertex attribute by displaying it as a color for debugging.

Components for well-known unit-length vectors, i.e., normal, binormal, and tangent, are scaled and biased from [-1.0, 1.0] to (-1.0, 1.0).

Name Type Default Description
options.attributeName String The name of the attribute to visualize.
options.glslDatatype String 'vec3' optional The GLSL datatype of the attribute. Supported datatypes are float, vec2, vec3, and vec4.
options.vertexShaderSource String optional Optional GLSL vertex shader source to override the default vertex shader.
options.fragmentShaderSource String optional Optional GLSL fragment shader source to override the default fragment shader.
options.renderState RenderState optional Optional render state to override the default render state.
Throws:
  • DeveloperError : options.glslDatatype must be float, vec2, vec3, or vec4.
Example:
var primitive = new Cesium.Primitive({
  geometryInstances : // ...
  appearance : new Cesium.DebugAppearance({
    attributeName : 'normal'
  })
});

Members

readonlyattributeName :String

The name of the attribute being visualized.

readonlyclosed :Boolean

When true, the geometry is expected to be closed.
Default Value: false

readonlyfragmentShaderSource :String

The GLSL source code for the fragment shader. The full fragment shader source is built procedurally taking into account the DebugAppearance#material. Use DebugAppearance#getFragmentShaderSource to get the full source.

getFragmentShaderSource

Returns the full GLSL fragment shader source, which for DebugAppearance is just DebugAppearance#fragmentShaderSource.

getRenderState

Creates a render state. This is not the final RenderState instance; instead, it can contain a subset of render state properties identical to renderState passed to Context#createRenderState.

readonlyglslDatatype :String

The GLSL datatype of the attribute being visualized.

isTranslucent

Determines if the geometry is translucent based on DebugAppearance#translucent.

material :Material

This property is part of the Appearance interface, but is not used by DebugAppearance since a fully custom fragment shader is used.
Default Value: undefined

readonlyrenderState :Object

The WebGL fixed-function state to use when rendering the geometry.

translucent :Boolean

When true, the geometry is expected to appear translucent.
Default Value: false

readonlyvertexShaderSource :String

The GLSL source code for the vertex shader.