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Image property query instructions ",{"type":1893,"tag":1970,"props":5475,"children":5477},{"className":5476},[],[5478],{"type":1898,"value":5479},"OpImageQuerySize",{"type":1898,"value":4800},{"type":1893,"tag":1970,"props":5482,"children":5484},{"className":5483},[],[5485],{"type":1898,"value":5486},"OpImageQuerySizeLod",{"type":1898,"value":5488},", ",{"type":1893,"tag":1970,"props":5490,"children":5492},{"className":5491},[],[5493],{"type":1898,"value":5494},"OpImageQueryLevels",{"type":1898,"value":5496},", and ",{"type":1893,"tag":1970,"props":5498,"children":5500},{"className":5499},[],[5501],{"type":1898,"value":5502},"OpImageQuerySamples",{"type":1898,"value":5504}," return undefined\nvalues for a weight image descriptor.",{"type":1893,"tag":5169,"props":5506,"children":5508},{"id":5507},"_separable_weight_encoding",[5509],{"type":1898,"value":5510},"Separable Weight Encoding",{"type":1893,"tag":1894,"props":5512,"children":5513},{},[5514],{"type":1898,"value":5515},"For a separable weight filtering, the view will be type VK_IMAGE_VIEW_TYPE_1D_ARRAY.\nHorizontal weights for all phases are packed in layer '0' and the vertical weights for\nall phases are packed in layer '1'.  Within each layer, the weights are arranged into\ngroups of 4.  For each group, the weights are ordered by phase. 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Note that ",{"type":1893,"tag":1979,"props":5682,"children":5683},{},[5684],{"type":1898,"value":5678},{"type":1898,"value":5686}," specifies a floating-point\nwidth and height in texels.  The instruction computes a weighted average of all texels\nin the ",{"type":1893,"tag":1979,"props":5688,"children":5689},{},[5690],{"type":1898,"value":1983},{"type":1898,"value":5692}," that are covered (either partially or fully) by a box with\nthe specified size and centered at the specified texture coordinates.",{"type":1893,"tag":1894,"props":5694,"children":5695},{},[5696],{"type":1898,"value":5697},"For each texel covered by the box, a weight value is computed by the implementation.\nThe weight is proportional to the area of the texel covered.  Those texels that are\nfully covered by the box receive a weight of 1.0.  Those texels that are partially\ncovered by the box receive a weight proportional to the covered area.  For example,\na texel that has one quarter of its area covered by the box will receive a\nweight of 0.25.",{"type":1893,"tag":1894,"props":5699,"children":5700},{},[5701,5702,5707,5708,5713,5715,5719],{"type":1898,"value":5133},{"type":1893,"tag":1970,"props":5703,"children":5705},{"className":5704},[],[5706],{"type":1898,"value":5139},{"type":1898,"value":5141},{"type":1893,"tag":1970,"props":5709,"children":5711},{"className":5710},[],[5712],{"type":1898,"value":5147},{"type":1898,"value":5714}," then the\nvalue of each covered texel is multiplied by the weight, and the resulting weighted\naverage is summed for each component across all covered texels.  The resulting sum\nis then divided by the ",{"type":1893,"tag":1979,"props":5716,"children":5717},{},[5718],{"type":1898,"value":5678},{"type":1898,"value":5720}," area.",{"type":1893,"tag":1894,"props":5722,"children":5723},{},[5724,5725,5730],{"type":1898,"value":5133},{"type":1893,"tag":1970,"props":5726,"children":5728},{"className":5727},[],[5729],{"type":1898,"value":5139},{"type":1898,"value":5731}," is VK_SAMPLER_REDUCTION_MODE_MIN or VK_SAMPLER_REDUCTION_MODE_MAX,\na component-wise minimum or maximum is computed, for all texels covered by the box,\nincluding texels that are partially covered.",{"type":1893,"tag":2118,"props":5733,"children":5735},{"id":5734},"_block_matching_sampling",[5736],{"type":1898,"value":5737},"Block Matching Sampling",{"type":1893,"tag":1894,"props":5739,"children":5740},{},[5741,5742,5747,5748,5753,5755,5759,5760,5765,5766,5770,5771,5776,5777,5782,5784,5788,5790,5794,5796,5801,5803,5808],{"type":1898,"value":4608},{"type":1893,"tag":1970,"props":5743,"children":5745},{"className":5744},[],[5746],{"type":1898,"value":2440},{"type":1898,"value":2065},{"type":1893,"tag":1970,"props":5749,"children":5751},{"className":5750},[],[5752],{"type":1898,"value":2625},{"type":1898,"value":5754}," instructions\neach takes 5 operands: ",{"type":1893,"tag":1979,"props":5756,"children":5757},{},[5758],{"type":1898,"value":2078},{"type":1898,"value":5488},{"type":1893,"tag":1979,"props":5761,"children":5762},{},[5763],{"type":1898,"value":5764},"target coordinates",{"type":1898,"value":5488},{"type":1893,"tag":1979,"props":5767,"children":5768},{},[5769],{"type":1898,"value":2084},{"type":1898,"value":4800},{"type":1893,"tag":1979,"props":5772,"children":5773},{},[5774],{"type":1898,"value":5775},"reference coordinates",{"type":1898,"value":5496},{"type":1893,"tag":1979,"props":5778,"children":5779},{},[5780],{"type":1898,"value":5781},"block size",{"type":1898,"value":5783},".  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",{"type":1893,"tag":1970,"props":5797,"children":5799},{"className":5798},[],[5800],{"type":1898,"value":2440},{"type":1898,"value":5802}," computes \"Sum Of Absolute\nDifference\" and ",{"type":1893,"tag":1970,"props":5804,"children":5806},{"className":5805},[],[5807],{"type":1898,"value":2625},{"type":1898,"value":5809}," computes \"Sum of Squared Difference\",\nbut otherwise both instructions are similar.",{"type":1893,"tag":1894,"props":5811,"children":5812},{},[5813,5815,5819,5820,5824,5826,5830,5831,5835,5837,5841,5843,5848,5850,5855],{"type":1898,"value":5814},"Both ",{"type":1893,"tag":1979,"props":5816,"children":5817},{},[5818],{"type":1898,"value":5764},{"type":1898,"value":2065},{"type":1893,"tag":1979,"props":5821,"children":5822},{},[5823],{"type":1898,"value":5775},{"type":1898,"value":5825}," are integer texel coordinates\nof the lower-left texel of the block to be matched in the ",{"type":1893,"tag":1979,"props":5827,"children":5828},{},[5829],{"type":1898,"value":2078},{"type":1898,"value":5298},{"type":1893,"tag":1979,"props":5832,"children":5833},{},[5834],{"type":1898,"value":2084},{"type":1898,"value":5836}," respectively.\nThe ",{"type":1893,"tag":1979,"props":5838,"children":5839},{},[5840],{"type":1898,"value":5781},{"type":1898,"value":5842}," provides the height and width in integer texels of the regions to\nbe matched and must be greater than 0 or ",{"type":1893,"tag":1979,"props":5844,"children":5845},{},[5846],{"type":1898,"value":5847},"result",{"type":1898,"value":5849}," will contain an ",{"type":1893,"tag":1979,"props":5851,"children":5852},{},[5853],{"type":1898,"value":5854},"undefined value",{"type":1898,"value":3918},{"type":1893,"tag":1894,"props":5857,"children":5858},{},[5859,5861,5865,5867,5871,5872,5876,5878,5882,5884,5889,5890,5895,5897,5901,5903,5908],{"type":1898,"value":5860},"Note that the coordinates and ",{"type":1893,"tag":1979,"props":5862,"children":5863},{},[5864],{"type":1898,"value":5781},{"type":1898,"value":5866}," may result in a region that extends\nbeyond the bounds of ",{"type":1893,"tag":1979,"props":5868,"children":5869},{},[5870],{"type":1898,"value":2078},{"type":1898,"value":4324},{"type":1893,"tag":1979,"props":5873,"children":5874},{},[5875],{"type":1898,"value":2084},{"type":1898,"value":5877},".  For ",{"type":1893,"tag":1979,"props":5879,"children":5880},{},[5881],{"type":1898,"value":2078},{"type":1898,"value":5883},",\nthis is valid and the  sampler ",{"type":1893,"tag":1970,"props":5885,"children":5887},{"className":5886},[],[5888],{"type":1898,"value":4306},{"type":1898,"value":2065},{"type":1893,"tag":1970,"props":5891,"children":5893},{"className":5892},[],[5894],{"type":1898,"value":4314},{"type":1898,"value":5896}," will determine\nthe value of such texels.   For ",{"type":1893,"tag":1979,"props":5898,"children":5899},{},[5900],{"type":1898,"value":2084},{"type":1898,"value":5902}," case this will result in undefined\nvalues returned.  The application must guarantee that the ",{"type":1893,"tag":1979,"props":5904,"children":5905},{},[5906],{"type":1898,"value":5907},"reference region\ndoes not extend beyond the bounds of _reference image",{"type":1898,"value":3918},{"type":1893,"tag":1894,"props":5910,"children":5911},{},[5912,5914,5919,5921,5926,5928,5933,5935,5940],{"type":1898,"value":5913},"For each texel in the regions, a difference value is computed by subtracting the\ntarget value from the reference value.  ",{"type":1893,"tag":1970,"props":5915,"children":5917},{"className":5916},[],[5918],{"type":1898,"value":2440},{"type":1898,"value":5920}," computes the\nabsolute value of the difference; this is the ",{"type":1893,"tag":1979,"props":5922,"children":5923},{},[5924],{"type":1898,"value":5925},"texel error",{"type":1898,"value":5927},".  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If any descriptor accessed by these\ninstructions is not bound, undefined results will occur.",{"type":1893,"tag":2118,"props":7016,"children":7018},{"id":7017},"_how_does_this_interact_with_push_descriptors",[7019],{"type":1898,"value":7020},"How does this interact with push descriptors ?",{"type":1893,"tag":1894,"props":7022,"children":7023},{},[7024],{"type":1898,"value":7025},"The descriptors added by this extension can be updated using vkCmdPushDescriptors",{"type":1893,"tag":7027,"props":7028,"children":7029},"style",{},[7030],{"type":1898,"value":7031},"html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}",{"title":3012,"searchDepth":14,"depth":14,"links":7033},[7034,7035,7036,7048,7049],{"id":1902,"depth":14,"text":1905},{"id":1918,"depth":14,"text":1921},{"id":1954,"depth":14,"text":1957,"children":7037},[7038,7039,7040,7041,7042,7043,7044,7045,7046,7047],{"id":2120,"depth":18,"text":2123},{"id":2997,"depth":18,"text":3000},{"id":3899,"depth":18,"text":3902},{"id":4203,"depth":18,"text":4206},{"id":4377,"depth":18,"text":4380},{"id":4441,"depth":18,"text":4444},{"id":4534,"depth":18,"text":4537},{"id":4780,"depth":18,"text":4783},{"id":5655,"depth":18,"text":5658},{"id":5734,"depth":18,"text":5737},{"id":6014,"depth":14,"text":6017},{"id":6973,"depth":14,"text":6976,"children":7050},[7051,7052,7053,7054],{"id":6979,"depth":18,"text":6982},{"id":6990,"depth":18,"text":6993},{"id":7006,"depth":18,"text":7009},{"id":7017,"depth":18,"text":7020},"markdown",1773997396858]