org.lwjgl.vulkan

Class EXTSamplerFilterMinmax

java.lang.Object

org.lwjgl.vulkan.EXTSamplerFilterMinmax

public final class EXTSamplerFilterMinmax
extends java.lang.Object

In unextended Vulkan, minification and magnification filters such as LINEAR allow sampled image lookups to return a filtered texel value produced by computing a weighted average of a collection of texels in the neighborhood of the texture coordinate provided.

This extension provides a new sampler parameter which allows applications to produce a filtered texel value by computing a component-wise minimum (MIN) or maximum (MAX) of the texels that would normally be averaged. The reduction mode is orthogonal to the minification and magnification filter parameters. The filter parameters are used to identify the set of texels used to produce a final filtered value; the reduction mode identifies how these texels are combined.

Examples

None.

Name String

VK_EXT_sampler_filter_minmax

Extension Type

Device extension

Registered Extension Number

131

Revision

2

Extension and Version Dependencies

• Requires Vulkan 1.0
• Requires VK_KHR_get_physical_device_properties2

Contact

• Jeff Bolz jeffbolznv

Last Modified Date

2017-05-19

IP Status

No known IP claims.

Contributors

• Jeff Bolz, NVIDIA
• Piers Daniell, NVIDIA

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	VK_EXT_SAMPLER_FILTER_MINMAX_EXTENSION_NAME The extension name.
static int	VK_EXT_SAMPLER_FILTER_MINMAX_SPEC_VERSION The extension specification version.
static int	VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_MINMAX_BIT_EXT Extends VkFormatFeatureFlagBits.
static int	VK_SAMPLER_REDUCTION_MODE_MAX_EXT VkSamplerReductionModeEXT - Specify reduction mode for texture filtering
static int	VK_SAMPLER_REDUCTION_MODE_MIN_EXT VkSamplerReductionModeEXT - Specify reduction mode for texture filtering
static int	VK_SAMPLER_REDUCTION_MODE_WEIGHTED_AVERAGE_EXT VkSamplerReductionModeEXT - Specify reduction mode for texture filtering
static int	VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SAMPLER_FILTER_MINMAX_PROPERTIES_EXT Extends VkStructureType.
static int	VK_STRUCTURE_TYPE_SAMPLER_REDUCTION_MODE_CREATE_INFO_EXT Extends VkStructureType.

Method Summary

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

VK_EXT_SAMPLER_FILTER_MINMAX_SPEC_VERSION

public static final int VK_EXT_SAMPLER_FILTER_MINMAX_SPEC_VERSION

The extension specification version.

See Also:

Constant Field Values

VK_EXT_SAMPLER_FILTER_MINMAX_EXTENSION_NAME

public static final java.lang.String VK_EXT_SAMPLER_FILTER_MINMAX_EXTENSION_NAME

The extension name.

See Also:

Constant Field Values

VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SAMPLER_FILTER_MINMAX_PROPERTIES_EXT

public static final int VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SAMPLER_FILTER_MINMAX_PROPERTIES_EXT

Extends VkStructureType.

Enum values:

• STRUCTURE_TYPE_PHYSICAL_DEVICE_SAMPLER_FILTER_MINMAX_PROPERTIES_EXT
• STRUCTURE_TYPE_SAMPLER_REDUCTION_MODE_CREATE_INFO_EXT

See Also:

Constant Field Values

VK_STRUCTURE_TYPE_SAMPLER_REDUCTION_MODE_CREATE_INFO_EXT

public static final int VK_STRUCTURE_TYPE_SAMPLER_REDUCTION_MODE_CREATE_INFO_EXT

Extends VkStructureType.

Enum values:

• STRUCTURE_TYPE_PHYSICAL_DEVICE_SAMPLER_FILTER_MINMAX_PROPERTIES_EXT
• STRUCTURE_TYPE_SAMPLER_REDUCTION_MODE_CREATE_INFO_EXT

See Also:

Constant Field Values

VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_MINMAX_BIT_EXT

public static final int VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_MINMAX_BIT_EXT

Extends VkFormatFeatureFlagBits.

See Also:

Constant Field Values

VK_SAMPLER_REDUCTION_MODE_WEIGHTED_AVERAGE_EXT

public static final int VK_SAMPLER_REDUCTION_MODE_WEIGHTED_AVERAGE_EXT

VkSamplerReductionModeEXT - Specify reduction mode for texture filtering

Description

• SAMPLER_REDUCTION_MODE_WEIGHTED_AVERAGE_EXT specifies that texel values are combined by computing a weighted average of values in the footprint, using weights as specified in the image operations chapter.
• SAMPLER_REDUCTION_MODE_MIN_EXT specifies that texel values are combined by taking the component-wise minimum of values in the footprint with non-zero weights.
• SAMPLER_REDUCTION_MODE_MAX_EXT specifies that texel values are combined by taking the component-wise maximum of values in the footprint with non-zero weights.

See Also

VkSamplerReductionModeCreateInfoEXT

See Also:

Constant Field Values

VK_SAMPLER_REDUCTION_MODE_MIN_EXT

public static final int VK_SAMPLER_REDUCTION_MODE_MIN_EXT

VkSamplerReductionModeEXT - Specify reduction mode for texture filtering

Description

• SAMPLER_REDUCTION_MODE_WEIGHTED_AVERAGE_EXT specifies that texel values are combined by computing a weighted average of values in the footprint, using weights as specified in the image operations chapter.
• SAMPLER_REDUCTION_MODE_MIN_EXT specifies that texel values are combined by taking the component-wise minimum of values in the footprint with non-zero weights.
• SAMPLER_REDUCTION_MODE_MAX_EXT specifies that texel values are combined by taking the component-wise maximum of values in the footprint with non-zero weights.

See Also

VkSamplerReductionModeCreateInfoEXT

See Also:

Constant Field Values

VK_SAMPLER_REDUCTION_MODE_MAX_EXT

public static final int VK_SAMPLER_REDUCTION_MODE_MAX_EXT

VkSamplerReductionModeEXT - Specify reduction mode for texture filtering

Description

• SAMPLER_REDUCTION_MODE_WEIGHTED_AVERAGE_EXT specifies that texel values are combined by computing a weighted average of values in the footprint, using weights as specified in the image operations chapter.
• SAMPLER_REDUCTION_MODE_MIN_EXT specifies that texel values are combined by taking the component-wise minimum of values in the footprint with non-zero weights.
• SAMPLER_REDUCTION_MODE_MAX_EXT specifies that texel values are combined by taking the component-wise maximum of values in the footprint with non-zero weights.

See Also

VkSamplerReductionModeCreateInfoEXT

See Also:

Constant Field Values