resounding
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thedocruby
Rework Materials code
The material properties code really needs to be redone The properties should be reworked to include the following values:
Density Refractive index Roughness Absorption
This will be updated as I slowly devise a pressure wave BSDF for Resounding
List of valuable sources (will be updated):
- Physics of Nondestructive Evaluation: Waves (use this tool to render the equations)
- Chapter 2: Reflection, refraction, diffraction, and scattering
Wow, that is a crap ton of useful information in one link. Great find! This could prove very useful as I develop my BSDF. Thanks for sharing!
Related to, and will be addressed by #86. (though I'm not sure all the properties need to be stored—if we're to keep this real-time...)
A dump of research sources, most are pertinent to #97, or #98 though useful for all.
How (equations, procedures, effects):
www.omnicalculator.com/physics/acoustic-impedance www.omnicalculator.com/physics/reverberation-time www.omnicalculator.com/physics/distance-attenuation
To be investigated further
www.engineeringtoolbox.com/outdoor-sound-partial-barriers-d_65.html
What (properties/specific values):
Sound speed / velocity
www.engineeringtoolbox.com/sound-speed-solids-d_713.html www.signal-processing.com/table.php www.rfcafe.com/references/general/velocity-sound-media.htm
Densities
www.engineeringtoolbox.com/density-materials-d_1652.html www.engineeringtoolbox.com/mineral-density-d_1555.html www.engineeringtoolbox.com/metal-alloys-densities-d_50.html www.engineeringtoolbox.com/wood-density-d_40.html www.rfcafe.com/references/general/velocity-sound-media.htm
Melt/freeze
www.engineeringtoolbox.com/elements-melting-points-d_1863.html
Why (explanations of why [How] stuff works):
www.nde-ed.org/Physics/Sound/speedinmaterials.xhtml www.britannica.com/science/sound-physics/Circular-and-spherical-waves
ETC (monoliths / misc resources):
www.acs.psu.edu/drussell/demos.html noisetools.net/barriercalculator