Rendering 3D Graphics on a 32×32 RGB LED Matrix Display with a Raspberry Pi and GeeXLab
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Change log for November 25, 2018 Vulkan 1.1.94 spec update: * Update release number to 94.Public Issues: * Use the terms "`texel block`" and "`texel block size`" instead of "`data element`" and "`element size`", and define "`element`" as an array slot. In addition to the terminology changes, retitled the <<texel-block-size, Representation and Texel Block Size>> section and added texel block size / no. of texels/block information to the <<features-formats-compatibility, Compatible Formats>> table. There is some additional work underway to make sure the compatibility language makes sense for all of uncompressed, compressed, and multiplanar formats (public issue 763). * Cleanup `VK_NV_ray_tracing` language (public issues 858, 859).Internal Issues: * Specify in <<shaders-invocationgroups, Invocation and Derivative Groups>> and <<textures-output-format-conversion, Texel Output Format Conversion>> that derivative groups are quads when code:SubgroupSize >= 4 (internal issue 1390). * Make the type of slink:VkDescriptorUpdateTemplateCreateInfo::pNext `const` following pattern for the other stext:Vk*CreateInfo structures (internal issue 1459). * Specify that flink:vkCmdClearAttachments executes as a drawing command, rather than a transfer command (internal issue 1463). * Update `VK_NV_ray_tracing` to use code:InstanceId instead of code:InstanceIndex.New Extensions: * `VK_KHR_swapchain_mutable_format` * `VK_EXT_fragment_density_map`
Change log for December 3, 2018 Vulkan 1.1.95 spec update: * Update release number to 95.Public Issues: * Fix valid usage and XML issues found in public issues 789 and 790 for the `VK_EXT_debug_utils` extension (public pull request 794). * Replace references to `VK_NV_dedicated_allocation` with links to the corresponding slink:slink:VkMemoryDedicatedRequirements and slink:slink:VkMemoryDedicatedAllocateInfo structures in the description of elink:VkExternalMemoryFeatureFlagBits (public issue 801). * Fix miscellaneous minor markup and spelling issues in `VK_NV_ray_tracing` extension (public pull request 860). * Remove "returnedonly" from XML for slink:VkPhysicalDeviceInlineUniformBlockFeaturesEXT and slink:VkPhysicalDeviceVulkanMemoryModelFeaturesKHR (public issue 862).Internal Issues: * Add to the description of the <<features-limits-maxComputeSharedMemorySize, pname:maxCompureSharedMemorySize>> feature to state the shared variables should be packed at least as tightly as std430 (internal issue 1386). * Fix and clarify various references to image and image view usage in flink:vkCmdBindShadingRateImageNV, flink:vkCmdBeginRenderPass, and slink:VkImageStencilUsageCreateInfoEXT (internal issue 1432). * Require that the slink:VkImage mipmap chain match the Android hardware buffer mipmap chain for slink:VkMemoryAllocateInfo (internal issue 1479). * Fix the definition of slink:VkSwapchainCreateInfoKHR valid usage statement 01778 (Vulkan-ValidationLayers!15) * Fix descriptions of <<interfaces-builtin-variables-launchid, code:LaunchIDNV>> and <<interfaces-builtin-variables-launchsize, code:LaunchSizeNV>> to code:uvec3.New Extensions: * `VK_KHR_shader_float16_int8` * `VK_KHR_shader_float_controls`
Change log for December 16, 2018 Vulkan 1.1.96 spec update: * Update release number to 96.Public Issues: * Fix typo in `vk.xml` for `structextends` attribute of slink:VkPhysicalDeviceShadingRateImagePropertiesNV (public PR 870). * Fix links in optimized PDF output (public PR 879).Internal Issues: * Add a link to GitHub contributors in the <<credits, Other Credits>> section (internal issue 808). * Clarify the behavior of command aliases described in the <<versions,Core Revisions>> and <<initialization-functionpointers, Command Function Pointers>> sections and the registry schema document with respect to whether they are or are not the same entry point, and what the behaviour of the ftext:vkGet*ProcAddr commands is for each alias (internal issue 1462). * Update slink:VkPipelineShaderStageCreateInfo valid usage statements for writing to code:Layer and code:viewportIndex to apply to any vertex processing stage (internal issue 1475). * Make sparse image creation optional for Y'C~B~C~R~ formats in the <<features-required-format-support, Required Format Support>> section and the <<features-formats-requiring-sampler-ycbcr-conversion, Formats requiring sampler Y'C~B~C~R~ conversion for ename:VK_IMAGE_ASPECT_COLOR_BIT image views>> table (internal issue 1476). * Modify the valid usage statement for flink:vkCmdDrawIndirectByteCountEXT::pname:vertexStride to use the pname:maxTransformFeedbackBufferDataStride limit rather than the pname:maxVertexInputBindingStride limit, which is a better match for transform feedback related operations (internal issue 1487). * Changed all members of slink:VkPhysicalDevicePCIBusInfoPropertiesEXT to have the `uint32_t` type. This is an imcompatible change to an EXT that's very recently released; although this is against usual Vulkan WG policy, we discussed and consider this an acceptable risk, but have polled the mesa-dev list in case there are use cases we missed (internal issue 1492). * Set spec vetsion to 1 for `VK_GOOGLE_hlsl_functionality1` and `VK_GOOGLE_decorate_string` in `vk.xml` (internal MR 2948). * Remove redundant valid usage statement `VkImageCreateInfo-pNext-02395` (internal MR 2950). * Add `check_spec_links.py` script, use it in Gitlab CI, and fix many minor markup issues discovered by the script (internal MR 2955). * Update `BUILD.md` to the current Ruby version (2.5.3), and make some corresponding updates to per-platform build instructions (internal MR 2956). * Fix binding numbers and other details in flink:vkUpdateDescriptorSetWithTemplate.txt example code blocks (internal MR 2960). * Remove some nautovalidity="true" in `vk.xml` for NV extensions where it's clearly wrong (internal MR 2970).
Change log for January 05, 2019 Vulkan 1.1.97 spec update: * Update release number to 97.Public Issues: * Add a special case to the <<renderpass-compatibility, Render Pass Compatibility>> rules allowing single-subpass renderpasses to be compatible even if they have different resolve attachment references (public issue 835). * Fix the miss shader binding table record address rule in the <<shader-binding-table-indexing-rules, Miss Shaders>> section to index by code:missIndex, not code:sbtOffset (public issue 875).Internal Issues: * Add a missing anchor to the elink:VkSamplerCreateFlagBits language (internal issue 1483). * Add missing implicit valid usage include for slink:VkHdrMetadataEXT and corresponding `noautovalidity` attributes in `vk.xml` for the externally-defined metadata properties (internal issue 1514). * Remove restrictions on the `mask` parameter of SPIR-V's code:OpGroupNonUniformXor in the <<spirvenv-module-validation, Validation Rules within a Module>> appendix (internal merge request 2971). * Restore `noautovalidity` attribute for slink:VkPipelineViewportWScalingStateCreateInfoNV::pname:pViewportWScalings in `vk.xml` (internal merge request 2975). * Update copyright dates on Khronos-copyrighted files to 2019 (internal merge request 2980).New Extensions: * `VK_KHR_depth_stencil_resolve` * `VK_EXT_buffer_device_address` * `VK_EXT_memory_budget` * `VK_EXT_memory_priority` * `VK_EXT_validation_features`
Change log for January 13, 2019 Vulkan 1.1.98 spec update: * Update release number to 98.Public Issues: * Fix missing markup in flink:vkDestroyPipelineLayout valid usage statement (pull request 882). * Add missing contributors for `<<VK_EXT_buffer_device_address>>` (public pull request 891).Internal Issues: * Detect nested bullet points in valid usage blocks and warn about them during VUID assignment (internal issue 1382). * Update the style guide to document the process for reserving new bits in bitmask types (internal issue 1411). * Clarify for slink:VkApplicationInfo::pname:apiVersion and in the <<fundamentals-validusage-versions, Valid Usage for Newer Core Versions>> section when it is valid for an application to use a certain version of Vulkan API functionality (for an instance and for a device/physical device); and when the validation layers must generate an error (internal issue 1412). * Add optional <<memory-model-availability-visibility, transitive availability/visibility operations to the memory model, including a new pname:vulkanMemoryModelAvailabilityVisibilityChains feature for slink:VkPhysicalDeviceVulkanMemoryModelFeaturesKHR (internal issue 1460). * Add the code:StorageBuffer storage class to those in the <<interfaces-resources-descset, Descriptor Set Interface>> (internal issue 1480). * Add missing `returnedonly` tags for a number of returned extension structures that can be passed in pname:pNext chains (internal issue 1515). * Clean up and rearrange some spec language for slink:VkRenderPassCreateInfo and slink:VkAttachmentReference.txt (internal issue 1522). * Correctly round the code:OpVectorTimesScalar and code:OpMatrixTimesScalar SPIR-V operations in the <<Precision of core SPIR-V Instructions>> table (internal merge request 2996). * Work around cases in flink:vkCmdBeginTransformFeedbackEXT, flink:vkCmdEndTransformFeedbackEXT, and slink:VkPipelineCoverageModulationStateCreateInfoNV where an array parameter is `optional` but the length is not in `vk.xml`. This is an interim fix using `noautovalidity` + handcoded VU replacing those that should be autogenerated (internal issue 2944 and KhronosGroup/Vulkan-ValidationLayers#480). * Remove redundant capability validation of the code:float16 and code:int8 SPIR-V capabilities from the <<spirvenv-capabilities, Capabilities>> section, since they are already covered in the preceding table. * Update check_spec_links script, including validation for reference page open blocks. Fix errors identified by the script.
Change log for February 3, 2019 Vulkan 1.1.99 spec update: * Update release number to 99.Public Issues: * Add missing pname:pMemoryHostPointerProperties description to flink:vkGetMemoryHostPointerPropertiesEXT.txt (public pull request 896). * Minor markup fixes (public pull request 900). * Minor update to `khronos.css` and markup fixes (originally proposed in public pull request 901, but done via an internal MR).Internal Issues: * Document restrictions on image queries for Y'CbCr formats in the <<features-formats-requiring-sampler-ycbcr-conversion>> table as well as for slink:sname:VkImageFormatProperties and slink:VkImageCreateInfo (internal issue 1361). * Correct type of the code:FragSizeEXT built-in in the <<interfaces-builtin-variables, Built-In Variables>> section (internal issue 1526). * Clean up math in the <<textures, Image Operations>> chapter by refactoring, using better naming conventions, updating diagrams to use the correct orientation, etc. (internal merge request 2968). * Fix minor typos for slink:VkImageCreateInfo and slink:VkImageStencilUsageCreateInfoEXT. * Add missing documentation for tlink:VkResolveModeFlagsKHR. * Fix extension dependency of pname:scalarBlockLayout in the <<features-features-requirements, Feature Requirements>> section. * Fix indexing math for shader binding table calculations in the <<shader-binding-table-indexing-rules, Indexing Rules>> section, and use spelling "`any-hit`" consistently. * Reconcile valid usage statement and text for sampled image layouts in slink:VkWriteDescriptorSet (KhronosGroup/Vulkan-ValidationLayers#551). * Make SPIR-V code:OpConvertUToPtr and code:OpConvertPtrToU operations require a 64-bit integer for physical storage buffer pointers in the <<spirvenv-module-validation, Validation Rules within a Module>> section. * Update to KaTeX 10.0.New Extensions: * `VK_EXT_filter_cubic` * `VK_NV_dedicated_allocation_image_aliasing`
Change log for February 10, 2019 Vulkan 1.1.100 spec update: * Update release number to 100.Public Issues: * Clarify that scoped modification order only relates to <<memory-model-atomic-operation, atomic writes>> (public pull request 906). * Remove `readme.txt` reference from `xml/README.adoc` (public pull request 907). * Add missing slink:VkShaderResourceUsageAMD to the <<Vk_AMD_shader_info>> appendix (public pull request 908). * Fix markup for <<VK_EXT_filter_cubic>> appendix (public pull request 911). * Fix typo "`attachment`" (public pull request 914). * Alias the enums for `VK_IMG_filter_cubic` properly to the corresponding `VK_EXT_filter_cubic` enums, so they appear in the corresponding enumerated types, instead of as #defines (Vulkan-Headers issue 40).Internal Issues: * Remove nested conditionals in valid usage statements for slink:VkFramebufferCreateInfo and flink:vkCmdPipelineBarrier by duplicating statements along ifdef/ifndef paths for VK_KHR_depth_stencil_resolve (internal issue 1527). * Clarify allowed values of <<spirv-precision-operation, SPIR-V operations near infinity>>. For very large results of operations the allowed range of return values as defined in the spec didn't include the largest finite number. In some rounding modes (eg. RTZ) the largest finite number is the correctly rounded result, so it should be allowed. * Require descriptor types to match in slink:VkCopyDescriptorSet.
Change log for February 17, 2019 Vulkan 1.1.101 spec update: * Update release number to 101.Public Issues: * Make clear that memory types for imported host memory must be host visible in slink:VkMemoryHostPointerPropertiesEXT.txt (public issue 897). * Make <<interfaces-resources-layout, WARNING block>> into a NOTE block, per the styleguide (public pull request 916).Internal Issues: * Make <<textures-output-format-conversion, computation of derivatives in non-uniform flow control>> have undefined behavior (internal issue 1367). * Make behavior, not just values, undefined for <<textures-layout-validation, reads from inconsistent YCbCr layouts>> (internal issue 1366). * Consolidate version and extension behavior documentation in the <<extended-functionality, Extended Functionality>> appendix, While a great deal of text was moved from other parts of the Specification into the appendix, this just serves to simplify and make consistent discussions of versions and extensions (internal issue 1473). * Add limits for slink:VkPhysicalDeviceRayTracingPropertiesNV in the <<features-limits-types, Required Limit Types>> and <<features-limits-required, Required Limits>> tables (internal issue 1511). * Disallow <<memory-protected-memory, indirect calls within protected command buffers>> by adding valid usage statements for the related indirect dispatch and draw commands (internal issue 1513). * Add valid usage stataements to slink:VkGraphicsPipelineCreateInfo, slink:VkSubpassDescription, slink:VkSubpassDescription2KHR, slink:VkSubpassDescriptionDepthStencilResolveKHR, and slink:VkImageViewCreateInfo preventing the creation of a renderpass with attachments in formats that are not supported for rendering (internal issue 1552). * Qualify valid usage statements for slink:VkAttachmentReference::pname:layout parameter so restrictions only apply if an attachment is ename:VK_ATTACHMENT_UNUSED (internal issue 1561). * Add valid usage statement for flink:vkCmdDrawIndirectByteCountEXT restricting pname:vertexStride to be positive (internal issue 1566). * Make the `VK_EXT_sample_locations` extension depend on `VK_KHR_get_physical_device_properties2` in `vk.xml`. * Rearrange and simplify the <<interfaces-resources-layout, block layout rules>>.New Extensions: * `VK_NV_cooperative_matrix` * `VK_EXT_depth_clip_enable` (internal issue 1485).
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Topic: Vulkan API specifications 1.0.4 released (Read 65648 times)
