Sha256: 14ba24af0686bac60eccda37f9c235bf3be22fbbeed5daab5d8a46a327ecac8e

Contents?: true

Size: 1.23 KB

Versions: 12

Compression:

Stored size: 1.23 KB

Contents

/**
 * Transforms a position from eye to window coordinates.  The transformation
 * from eye to clip coordinates is done using {@link czm_projection}.
 * The transform from normalized device coordinates to window coordinates is
 * done using {@link czm_viewportTransformation}, which assumes a depth range
 * of <code>near = 0</code> and <code>far = 1</code>.
 * <br /><br />
 * This transform is useful when there is a need to manipulate window coordinates
 * in a vertex shader as done by {@link BillboardCollection}.
 *
 * @name czm_eyeToWindowCoordinates
 * @glslFunction
 *
 * @param {vec4} position The position in eye coordinates to transform.
 *
 * @returns {vec4} The transformed position in window coordinates.
 *
 * @see czm_modelToWindowCoordinates
 * @see czm_projection
 * @see czm_viewportTransformation
 * @see BillboardCollection
 *
 * @example
 * vec4 positionWC = czm_eyeToWindowCoordinates(positionEC);
 */
vec4 czm_eyeToWindowCoordinates(vec4 positionEC)
{
    vec4 q = czm_projection * positionEC;                        // clip coordinates
    q.xyz /= q.w;                                                // normalized device coordinates
    q.xyz = (czm_viewportTransformation * vec4(q.xyz, 1.0)).xyz; // window coordinates
    return q;
}

Version data entries

12 entries across 12 versions & 1 rubygems

Version Path
cesium-1.24.0 app/assets/javascripts/Cesium/Shaders/Builtin/Functions/eyeToWindowCoordinates.glsl
cesium-1.23.0 app/assets/javascripts/Cesium/Shaders/Builtin/Functions/eyeToWindowCoordinates.glsl
cesium-1.18.0 app/assets/javascripts/Cesium/Shaders/Builtin/Functions/eyeToWindowCoordinates.glsl
cesium-1.17.0 app/assets/javascripts/Cesium/Shaders/Builtin/Functions/eyeToWindowCoordinates.glsl
cesium-0.25.0 app/assets/javascripts/Shaders/Builtin/Functions/eyeToWindowCoordinates.glsl
cesium-0.24.1 app/assets/javascripts/Shaders/Builtin/Functions/eyeToWindowCoordinates.glsl
cesium-0.24.0 app/assets/javascripts/Shaders/Builtin/Functions/eyeToWindowCoordinates.glsl
cesium-0.23.0 app/assets/javascripts/Shaders/Builtin/Functions/eyeToWindowCoordinates.glsl
cesium-0.22.0 app/assets/javascripts/Shaders/Builtin/Functions/eyeToWindowCoordinates.glsl
cesium-0.21.1 app/assets/javascripts/Shaders/Builtin/Functions/eyeToWindowCoordinates.glsl
cesium-0.21 app/assets/javascripts/Shaders/Builtin/Functions/eyeToWindowCoordinates.glsl
cesium-0.20.0 app/assets/javascripts/Shaders/Builtin/Functions/eyeToWindowCoordinates.glsl