Contact
-
Tobias Hector tobski
Other Extension Metadata
- Last Modified Date
-
2016-02-23
- Contributors
-
-
Tobias Hector, Imagination Technologies
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Description
VK_IMG_filter_cubic
adds an additional, high quality cubic filtering mode
to Vulkan, using a Catmull-Rom bicubic filter.
Performing this kind of filtering can be done in a shader by using 16
samples and a number of instructions, but this can be inefficient.
The cubic filter mode exposes an optimized high quality texture sampling
using fixed texture sampling functionality.
New Enum Constants
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VK_IMG_FILTER_CUBIC_EXTENSION_NAME
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VK_IMG_FILTER_CUBIC_SPEC_VERSION
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Extending VkFilter:
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VK_FILTER_CUBIC_IMG
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Extending VkFormatFeatureFlagBits:
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VK_FORMAT_FEATURE_SAMPLED_IMAGE_FILTER_CUBIC_BIT_IMG
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Example
Creating a sampler with the new filter for both magnification and minification
VkSamplerCreateInfo createInfo =
{
VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO // sType
// Other members set to application-desired values
};
createInfo.magFilter = VK_FILTER_CUBIC_IMG;
createInfo.minFilter = VK_FILTER_CUBIC_IMG;
VkSampler sampler;
VkResult result = vkCreateSampler(
device,
&createInfo,
&sampler);
Document Notes
For more information, see the Vulkan Specification
This page is a generated document. Fixes and changes should be made to the generator scripts, not directly.