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Commits on Jul 25, 2017

• Adding usdimaging adapter to load UsdLux rect light into Hydra. This change also fixes an issue in RTP where rectLights where not using intensity.

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• Adds basic support for two types of UsdLux lights in Hydra and UsdImaging. Specifically we now support a subset of parameters for SphereLights and DomeLights.

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Commits on Jul 7, 2017

• Resource registry is not a singleton anymore. This changelist makes resource registry work with multiple backends. Resource registry between render delegates of the same type are shared, for instan…

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Commits on Jun 16, 2017

• Removing old include to a GL file in the header of bufferArrayRangeGL, it is not needed anymore.

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• This change makes possible for different backends to use DrawItems, Collections and other Hydra mechanism by extracting the GL specific part of the allocators. Diffent backends can now create their…

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Commits on Jun 5, 2017

• Fix usdImaging not honoring its contract on imageable prim instances, which sometimes causes bad artifacts.

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Commits on Apr 26, 2017

• HdRenderIndexScalability surfaces a performance regression in the Render Index. In a previous change we added collection as a parameter for the lambda to run via TBB and that extra parameter made i…

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Commits on Apr 20, 2017

• This change removes IsInCollection from the HdSceneDelegate, instead the delegates now make extensive use of the new method GetRenderTags. Any rprim can identify itself with a tag. Collections can …

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Commits on Apr 12, 2017

• Fix for the slowdowns during picking leading to a gpu bug, now we only render purpose that is enabled in the viewer. This changelist also reduces the amount of geometry used during picking which se…

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Commits on Apr 5, 2017

• This change moves the picking functionality in usdview to use collections include/exclude instead of a special mechanism, this was done to help simplify the IsInCollection function.

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• Primitives with subdivisionScheme = none used to be subdivided bilinearly, with this change if a prim specifies that it does not want subdivision then it is not subdivided.

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• Currently, Hydra does not support collections that include paths that live inside excluded paths. For instance, if we have an excluded path /excluded you can not have an included path /excluded/inc…

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Commits on Mar 15, 2017

• Performance optimizations to selection while mantaining correctness.

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Commits on Mar 10, 2017

• [Hd] Purpose change tracking

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Commits on Feb 24, 2017

• When a user selected in Usdview a prim that had no adapter, we would just get the rprims in that subtree. That does not work for instanced geometry since the prototypes may or may not be there. The…

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Commits on Jan 28, 2017

• A render pass can have now multiple command buffers, this is useful for things like guides and other purpose rendering. This is done using render tags and the delegate is responsible for assigning …

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Commits on Jan 4, 2017

• Draw target generation and shader reads are now fitting the projection matrix to the right policy.

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• Simplify the camera code by removing frustums. Now Hydra cameras (HdxCamera) only deals with view/projection camera.

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Commits on Jan 3, 2017

• Draw target resolve impacted the performance of our tools. This fix optimizes the extraction of the draw targets by passing them from the drawTargetTask to the drawTargeResolveTask using the task c…

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Commits on Dec 8, 2016

• Draw targets require MSAA since Hydra renders transparent objects using Alpha to Coverage.

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Commits on Nov 12, 2016

• [Hd] Function ShouldCullFace has been moved to a glslfx section so the different renderpasses can implement it as they need without reimplementing the whole camera section, this is specially useful…

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• Fixed a crash when loading 16k textures with floating point 4 channel colors. Integer multiplication was overflowing which caused the allocator to reserve 0 bytes textures. This changelist assings …

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Commits on Oct 25, 2016

• [Hd] The texture sampler will now take into account texture overrides. For instance, if the texture wants to use a specific wrap mode. Also, we now setup a default anisotropic filter and a default …

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Commits on Oct 18, 2016

• Refactor hd/texture so we first check the bits and we only do operations (create textures...) if they are needed

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Commits on Oct 17, 2016

• Providing better error detection in cases where we try to get a texture that has not been correctly inserted. Also, this change makes it so hd/surfaceshader does not insert textures in the registry…

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• Makes sure that if we reset the geometric shaders we set them up again.

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• In my previous commit d84ec65 I changed the order of operation of HdRprim::Sync so it would first try to get the shader from the delegate and then try to use that shader. This change surfaced an is…

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• [Glf] Fix for failing to load textures from disk.

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• This fix cleans the dirty bits after UpdateDrawItem is called. This changelist also refactors a bit the code in Rprim sync since we need to update the surfacce shader first and then prepare the buf…

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• If a shader did not compile we would replace it with a fallback shader however that would not be taken into account when binding buffers and other parts of the pipeline.

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Commits on Sep 17, 2016

• [glf] If the user is using late cropping make sure we discard the mip levels and use the cropped dimensions.

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Commits on Sep 6, 2016

• Texture mip maps can now be loaded from disk if the chain is provided and it is valid.

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• [Hdx] Extract the clip planes from the camera, set them in the render pass state and make sure the render pass state is binded/unbinded

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Commits on Aug 17, 2016

• This changelist adds the ability to detect if a shader (parameters) is time varying and if so, we will push updates to the gpu when changing time!

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• The min filter for LinearMipmapLinear was not implemented in UsdImaging, this made it look like textures had no mips and in the case of ambient environments it made it look like the cubemap was not…

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