Typedef

Paints the source image samples over the background image samples.

Multiplies the source image samples with the background image samples. This results in colors that are at least as dark as either of the two contributing sample colors.

Multiplies the inverse of the source image samples with the inverse of the background image samples. This results in colors that are at least as light as either of the two contributing sample colors.

Brightens the background image samples to reflect the source image samples. Source image sample values that specify black do not produce a change.

Darkens the background image samples to reflect the source image samples. Source image sample values that specify white do not produce a change.

Produces an effect similar to that produced by difference, but with lower contrast. Source image sample values that are black don’t produce a change; white inverts the background color values.

Uses the luminance and saturation values of the background with the hue of the source image.

Uses the luminance and hue values of the background with the saturation of the source image. Areas of the background that have no saturation (that is, pure gray areas) don’t produce a change.

Uses the luminance values of the background with the hue and saturation values of the source image. This mode preserves the gray levels in the image. You can use this mode to color monochrome images or to tint color images.

Uses the hue and saturation of the background with the luminance of the source image. This mode creates an effect that is inverse to the effect created by color.

R = 0

R = S

R = S*Da

R = S*(1 - Da)

R = SDa + D(1 - Sa)

R = S*(1 - Da) + D

R = D*Sa

R = D*(1 - Sa)

R = S(1 - Da) + DSa

R = S(1 - Da) + D(1 - Sa). This XOR mode is only nominally related to the classical bitmap XOR operation, which is not supported by Core Graphics

R = MAX(0, 1 - ((1 - D) + (1 - S)))

R = MIN(1, S + D)

A line with a squared-off end. Core Graphics draws the line to extend only to the exact endpoint of the path. This is the default.

A line with a rounded end. Core Graphics draws the line to extend beyond the endpoint of the path. The line ends with a semicircular arc with a radius of 1/2 the line’s width, centered on the endpoint.

A line with a squared-off end. Core Graphics extends the line beyond the endpoint of the path for a distance equal to half the line width.

A join with a rounded end. Core Graphics draws the line to extend beyond the endpoint of the path. The line ends with a semicircular arc with a radius of 1/2 the line’s width, centered on the endpoint.

A join with a squared-off end. Core Graphics draws the line to extend beyond the endpoint of the path, for a distance of 1/2 the line’s width.

A rule that considers a region to be interior to a path based on the number of times it is enclosed by path elements.

A rule that considers a region to be interior to a path if the winding number for that region is nonzero.

A number of seconds.

A number of milliseconds.

A number of microseconds.

A number of nanoseconds.

Linear pacing. The animation progresses evenly throughout its duration.

Ease-in pacing. The animation begins slowly, and then speeds up as it progresses.

Ease-out pacing. The animation begins quickly, and then slows as it completes.

Ease-in ease-out pacing. The animation begins slowly, accelerates through the middle of its duration, and then slows again before completing.

Disables antialiased rendering.

Enables multisample antialiasing, with two samples per screen pixel.

Enables multisample antialiasing, with four samples per screen pixel.

Enables multisample antialiasing, with eight samples per screen pixel.

Enables multisample antialiasing, with sixteen samples per screen pixel.

Blend by multiplying source and destination color values by their corresponding alpha values.

Blend by adding the source color to the destination color.

Blend by subtracting the source color from the destination color.

Blend by multiplying the source color with the background color.

Blend by multiplying the inverse of the source color with the inverse of the destination color.

Blend by replacing the destination color with the source color, ignoring alpha.

Execute the binding handler once for each frame to be rendered using the shader.

Execute the binding handler once for each frame, for each node to be rendered using the shader.

Execute the binding handler once for each frame, for each node, for each material or geometry to be rendered using the shader.

Apply a chamfer to both front and back edges of the extruded shape.

Apply a chamfer to only the front edge of the extruded shape.

Apply a chamfer to only the back edge of the extruded shape.

No texture filtering is applied.

Texture filtering returns the color from only one texel, whose location is nearest to the coordinates being sampled.

Texture filtering sample texels from the neighborhood of the coordinates being sampled and linearly interpolates their colors.

The geometry element’s data is a sequence of triangles, with each triangle described by three new vertices.

The geometry element’s data is a sequence of triangles, with each triangle described by one new vertex and two vertices from the previous triangle.

The geometry element’s data is a sequence of line segments, with each line segment described by two new vertices.

The geometry element’s data is a sequence of unconnected points.

An option to ignore faces not oriented toward the camera.

An option to search for objects by bounding box only.

An option to search for objects only within the depth range of the current point of view.

An option to return only the first object found.

An option to ignore child nodes when searching.

An option to ignore hidden nodes when searching.

The root of the node hierarchy to be searched.

An option to sort the results of a hit-test.

Target weights must be in the range between 0.0 and 1.0, and the contribution of the base geometry to the morphed surface is related to the sum of target weights. This is the default mode.

Target weights may take on any value, and weighted contributions for each target are added to the base geometry,

The node is not expected to move over time.

The node is expected to move over time.

The emitting direction is the same for all particles.

The emitting direction for each particle is along the surface normal vector at the point where the particle is emitted.

SceneKit randomizes the emitting direction for each particle.

New particles can be created at any location on the surface of the emitter shape.

New particles can be created at any location within the volume of the emitter shape.

New particles can be created at only at the locations of the vertices in the emitter shape.

The source and destination colors are added together.

The source color is subtracted from the destination color.

The source color is multiplied by the destination color.

The source color is added to the destination color times the inverted source color.

The source and destination colors are blended by multiplying the source alpha value.

The source color replaces the destination color.

Occurs when new particles spawn.

Occurs when particles reach the end of their life span.

Occurs when particles collide with scene geometry.

The animation loops after displaying all of its images.

The animation stops after displaying all of its images.

After the animation displays all of its images, it plays again in reverse order.

The controller’s effect on a particle property is a function of the time since the particle’s birth.

The controller’s effect on a particle property is a function of the particle’s distance from the position of a specified node.

The controller’s effect on a particle property is a function of another of the particle’s properties.

The stage before SceneKit simulates the motion of particles.

The stage after SceneKit simulates the motion of particles.

The stage before SceneKit simulates the results of collisions between particles and scene geometry.

The stage after SceneKit simulates the results of collisions between particles and scene geometry.

Each particle’s orientation is always fixed with respect to the point of view camera.

Each particle always faces the point of view camera (but may rotate about an axis parallel to the view direction).

Particle orientations are not restricted; they may rotate freely in all axes.

The y-axis direction of each particle is always fixed with respect to the point of view camera.

Particles are not sorted; they may be rendered in any order.

Particles farther from the point of view (as measured using projected depth) are rendered before closer particles.

Particles farther from the point of view (as measured using distance from the camera in scene space) are rendered before closer particles.

Particles emitted earlier are rendered before particles emitted more recently.

Particles emitted more recently are rendered before particles emitted earlier.

A physics body that is unaffected by forces or collisions and cannot move.

A physics body that can be affected by forces and collisions.

A physics body that is unaffected by forces or collisions but that can cause collisions affecting other bodies when moved.

The field’s effect applies only to objects within the region of space defined by its position and extent.

The field’s effect applies only to objects outside the region of space defined by its position and extent.

Load the node’s external content immediately when the reference node is unarchived.

Load the node’s external comment only when the load() method is called.

Use the Metal framework for SceneKit rendering.

Use the OpenGL ES 2.0 API for SceneKit rendering in iOS.

Use the Legacy OpenGL API for SceneKit rendering in macOS.

Use the OpenGL 3.2 Core Profile API for SceneKit rendering in macOS.

Use the OpenGL 4.1 Core Profile API for SceneKit rendering in macOS.

Use the OpenGL 4.1 Core Profile API for SceneKit rendering in macOS.

An error occurred when SceneKit attempted to load the scene.

SceneKit has begun deserializing the source file.

SceneKit has begun validating the scene file’s format.

SceneKit has begun generating scene graph objects from the scene file’s contents.

SceneKit has successfully finished loading the scene file’s contents.

Use this entry point to change the color of a fragment after all other shading has been performed.

Use this entry point to deform a geometry’s surface or alter its vertex attributes.

Use this entry point to provide a custom lighting equation.

Use this entry point to modify the surface properties of a material before lighting is computed.

SceneKit renders shadows during lighting computations.

SceneKit renders shadows in a postprocessing pass.

SceneKit renders shadows by projecting the light’s gobo image. The light does not illuminate the scene.

SceneKit derives transparency information from the alpha channel of colors. The value 1.0 is opaque.

SceneKit derives transparency information from the luminance of colors. The value 0.0 is opaque.

Texture coordinates are clamped to the range from 0.0 to 1.0, inclusive.

Texture sampling uses only the fractional part of texture coordinates, passing through the range from 0.0 to (but not including) 1.0.

Texture sampling uses texture colors for coordinates in the range from 0.0 to 1.0 (inclusive) and the material property’s borderColor value otherwise.

Texture sampling of texture coordinates outside range from 0.0 to 1.0 should behave as if the range reverses before repeating.

Specifies linear pacing. Linear pacing causes an animation to occur evenly over its duration.

Specifies ease-in pacing. Ease-in pacing causes the animation to begin slowly and then speed up as it progresses.

Specifies ease-out pacing. Ease-out pacing causes the animation to begin quickly and then slow as it completes.

Specifies ease-in ease-out pacing. An ease-in ease-out animation begins slowly, accelerates through the middle of its duration, and then slows again before completing.

The source and destination colors are blended by multiplying the source alpha value.

The source and destination colors are added together.

The source color is subtracted from the destination color.

The source color is multiplied by the destination color.

The source color is multiplied by the destination color and then doubled.

The source color is added to the destination color times the inverted source color.

The source color replaces the destination color.

Centers the text horizontally on the node’s origin.

Positions the text so that the left side of the text is on the node’s origin.

Positions the text so that the right side of the text is on the node’s origin.

Positions the text so that the font’s baseline lies on the node’s origin.

Centers the text vertically on the node’s origin.

Positions the text so that the top of the text is on the node’s origin.

Positions the text so that the bottom of the text is on the node’s origin.

Each axis of the scene is scaled independently so that each axis in the scene exactly maps to the length of that axis in the view.

The scaling factor of each dimension is calculated and the larger of the two is chosen. Each axis of the scene is scaled by the same scaling factor. This guarantees that the entire area of the view is filled but may cause parts of the scene to be cropped.

The scaling factor of each dimension is calculated and the smaller of the two is chosen. Each axis of the scene is scaled by the same scaling factor. This guarantees that the entire scene is visible but may require letterboxing in the view.

The scene is not scaled to match the view. Instead, the scene is automatically resized so that its dimensions always match those of the view.

Each pixel is drawn using the nearest point in the texture. This mode is faster, but the results are often pixelated.

Each pixel is drawn by using a linear filter of multiple texels in the texture. This mode produces higher quality results but may be slower.