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Commits on Jan 7, 2020

• Volumetric rendering in Storm: introducing separate render pass oit volume shader that accounts for the fact that volumes are rendered without the opaque pass unlike other OIT geometry.

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• Volumes in Storm: supporting orthographic camera in raymarching shader. Adding const's to shader.

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Commits on Dec 18, 2019

• Storm Volumes: stop ray marching when hitting opaque geometry.

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Commits on Dec 17, 2019

• Adding HdRenderPassState as argument to HdStShaderCode::BindResources. This way shaders such as HdStRenderPassShader can read, e.g., the AOV bindings stored in the HdRenderPassState.

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Commits on Dec 14, 2019

• Storm Volumetric Rendering: Invalidate rprims when HdStField bprim has DirtyParams to see animated volumes (given as time sampled file path attribute pointing to a sequence of OpenVDB files).

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Commits on Dec 13, 2019

• Storm volumetric rendering: when given an empty OpenVDB grid, draw a volume bounding box of zero extension instead of using the authored extents or the large floating point numbers that are the def…

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Commits on Dec 5, 2019

• Storm volumes: when camera is inside the bounding box of a volume, move the start point of the ray close to the camera since the fragment shader will only be called for the point of the bounding bo…

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• Storm volumes: Avoiding exception when loading an empty OpenVDB grid.

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Commits on Dec 4, 2019

• In build_usd.py, fixing style of python regex expression.

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• Adding option to build OpenVDB (off by default) to build_usd.py, the script that downloads USD dependencies and compiles them and USD.

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• Fixing that glf/plugInfo_NoOTIO.json was missing GlfVdbTexture.

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Commits on Dec 3, 2019

• Volumetric rendering in Storm: adding CMake support for OpenVDB.

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Commits on Aug 29, 2019

• Storm volumetric rendering: Removing environment variable HDST_ENABLE_EXPERIMENTAL_VOLUME_ELLIPSOID_STANDINS

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• Storm volumetric rendering: changing the default raymarching step sizes to something more reasonable

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• Storm volumetric rendering:

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Commits on Aug 27, 2019

• Volumetric rendering in storm:

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Commits on Aug 23, 2019

• Volumes for hydra's OpenGL backend: Changing fallback material to read density field

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• Storm field reader: Making GLSL code to read fields more robust.

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• Volumes for hydra's OpenGL backend: Issuing HF_VALIDATION_WARN if fields are not bounded by volume's extents

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• Moving token from volume to field

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• Volumes for hydra's OpenGL backend: Rename/clean-up

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• Volumes for hydra's OpenGL backend: Moving GLSL codegen from volume.cpp into codegen.cpp

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• Volumes for hydra's OpenGL backend: Using OpenVDB grid transform when sampling, determining when to stop ray marching and drawing the bounding box

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• Rendering OpenVDB volumes in hydra storm:

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Commits on Aug 22, 2019

• Volumes for hydra's OpenGL backend:

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Commits on Aug 16, 2019

• Adding comments to HdSt_MaterialBufferSourceAndTextureHelper.

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• hdSt: Moving some code in HdStMaterial::Sync into a helper class so that it can eventually be reused in HdStVolume::Sync.

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Commits on Aug 6, 2019

• Making UsdImagingGLHydraMaterialAdapter follow outputs:volume of a material if

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• Volumetric rendering in hdSt:

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• Making GlfBaseTexture and GlfBaseTextureData work with 1-, 2-, or 3-dimensional

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Commits on Aug 5, 2019

• Adding HdxOitVolumeRenderTask which runs after the translucent render pass and before the resolve.

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• hdSt OIT: To prepare for multiple OIT render task, the allocation of the OIT buffers has been moved to HdxOitResolveTask::Prepare and is happening if a OIT

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Commits on Jul 15, 2019

• hdSt OIT is using Peye passed to RenderOutput to determine depth value of a

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Commits on Jul 12, 2019

• First changelist to add volumetric rendering to hydra's OpenGL backend. It will render volume prims as constant density ellipsoids with size given by the prim's extent if the environment variable H…

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• Adding GlfTexture::GetGlTextureName() which was already implemented by all subclasses (though with slightly different const'ness and names).

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