VPT 1.0.3 Alpha

v1.0.3 Alpha Release Notes

In this new release sphere geometry type is supported. There are also many improvements, new features and bug fixes.

New features

• Supporting vector fields for volume color (default is "Cd")
• Added support for noise based procedural volumes
• Depth of field plane visualizer for easy control of focal point
• Volume depth aov is written in exr files as a layer
• Spheres are now supported in VPT
• Whole project now uses boost::filesystem for OS agnostic directory and file creation
• New fileIO classes for saving and loading many types of texture files (.png, .tga, .exr etc)
• Atmosphere system now saves precomputed textures and loads at start if they are present
• Residual ratio tracking for transmittance estimation
• New logging system with three levels defined at build time ("Errors only", "Warnings and Errors" and "Full Log")
• Ray depth and volume depth are now seperated.
• CMake now creates an example ".ins" file to render fireball.vdb instances
• Assets folder is now relative to exe file.

Bug fixes and UI Improvements

• Separated camera controls to a new UI
• Fixed a bug in cuda module load with new JIT ptx merger
• Fixed vdb file transformation matrix calculation if file comes from Houdini
• Atmosphere precomputation is now done in 3D and thus faster

Installation

Download and extract the "vpt.zip" to a folder, which comes with pre-built x64 binaries and assets. Run the "test_vpt.cmd" to test the VPT with the installed "fireball.ins" instance file, or you can run the VPT without command line arguments. If you are unable to run VPT, please submit a bug report in issues

VPT 1.0.2 Alpha

v1.0.2 Alpha Release Notes

VPT has come a long way since I've started writing it two and a half years ago and it is still growing strong. This release brings lots of new features that grew a lot in number so that it deserves a release. You can find the whole list of new features below

New features

• New ebruneton style sky
• Realistic planetary rendering with new sky system
• Now supporting point lights
• Volume emission is now supported
• Depth of field with new camera class
• Volume instancing
  • Ability to render thousands of instances
  • Instances share common volume textures
  • Correct transforms rotations and scales
  • New Houdini plug-in for exporting instance files
• Octree and BVH structures for fast ray traversal
• Cost calculation for ray traversal
• Blue noise pixel sampling
• Image Denoising with Intel Open Image Denoiser
• Color transfer functions for albedo and emission
• New energy injection for multiple scattering approximation
• New vdb assets
• Upgraded to Imgui 1.72
• Upgraded to OpenVDB 6.2

Bug fixes and UI improvements

• Fixed a bug in file saver where VPT crashed if file is saved after window size change
• Separated atmosphere parameters to a new gui
• Removed obsolete parameters from main gui