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Controlling Ray Trace Shadows in Maya - YouTube
https://www.youtube.com/watch?v=Ejfg27KV334
1.91K subscribers Subscribe http://www.mikecushny.com A Maya tutorial demonstration of how to optimize ray trace shadows. The video describes the process of smoothing noise and grainy shadow edges...
Depth map and raytraced shadows | Maya 2016 - Autodesk
https://knowledge.autodesk.com/support/maya/learn-explore/caas/CloudHelp/cloudhelp/2016/ENU/Maya/files/GUID-BC9C9AFE-D90E-4B54-8A2E-22ED1C89A06C-htm.html
Raytracing is a type of shadow rendering where the path of individual light rays are calculated from their source (the light) to their destination (the camera). Use raytraced shadows only to produce more physically accurate shadows (like those in the real world). Common purposes include:
Shadow in Maya | Maya 2020 | Autodesk Knowledge Network
https://knowledge.autodesk.com/support/maya/learn-explore/caas/CloudHelp/cloudhelp/2020/ENU/Maya-LightingShading/files/GUID-E4FE3CCF-EB03-4C4C-85D4-87792109B771-htm.html
By default, lights in Maya cast shadows. With the exception of ambient lights, all lights enable ray trace shadows by default ( Use Ray Trace Shadows is enabled under the Raytrace Shadow Attributes section of the Shadows section of the light Attribute Editor .) You can disable shadows by disabling this attribute.
Ask DT: Maya Rendering - How to get soft shadows
https://www.youtube.com/watch?v=OURfPVR7nTY
33% off Personal Annual and Premium subscriptions! Sign up to expand your technology skills and save TODAY!: https://plrsig.ht/3MEOnKyIn this lesson we’re go...
How do you get soft Shadows when Raytracing? - Simply Maya …
https://simplymaya.com/forum/showthread.php?t=5047
You want to look at both the light radius and shadow rays attributes. In a nutshell, adjusting the light radius will give you your soft shadows. The Shadow rays attribute controls the sampling of the shadows (kind of like the dmap filter). …
Soft edged shadows? - Autodesk Community
https://forums.autodesk.com/t5/maya-shading-lighting-and/soft-edged-shadows/td-p/4123494
To soften the edges of a raytrace shadow, increase the light radius. Initially, this will decrease the overall quality of the shadow, which you can compensate for by increasing the number of shadow rays. Don't be afraid to increase this to 10 or 20 or more - it will definitely give you a render-time hit, but that's how it's done.
Ray traced soft shadows in real time in Spellwrath
https://www.imaginationtech.com/blog/ray-traced-soft-shadows-in-real-time-spellwrath/
After we have scored a hit in our ray tracer, the following steps are taken to trace the shadows: For each pixel hit on the screen (2D), we cast a ray from it’s actual 3D position in world space towards the light source If the pixel is occluded, we store our occlusion value If the pixel is not occluded, we store a value of 1.0 in the buffer
Soft Shadows - Computer Science
https://www.cs.unc.edu/~dm/UNC/COMP236/LECTURES/SoftShadows.pdf
• Also, use a hires stencil buffer (we use 16 bits) – called light intensity buffer here How to rasterize a wedge… • Init light intensity (LI) buffer to 255 before • 255 = full light, 0 = no light, 0 < x < 255 penumbra wedge Front plane back plane Examples of rasterization in 2D • Next, describe missing pieces:
3d - Ray tracing - soft shadow - Stack Overflow
https://stackoverflow.com/questions/31709332/ray-tracing-soft-shadow
Generate a set of M random, uniform shadow rays from P towards disc D. If a ray R intersects anything before hitting L, there is no energy transfer along this path. Otherwise: multiply E/M by a dot product of normal vector N at P and (normalized) R, add the result to the light transferred so far. Repeat for all M rays.
Soft Shadow Volumes for Ray Tracing - ETH Z
https://cgl.ethz.ch/teaching/former/seminar/handouts/Lang_SoftShadowVolumes.pdf
Methods for Soft Shadows • Stochastic Ray Tracing – Use many shadow ray to sample light source • Radiosity Algorithm – Visibility of light source defined on a patch level • Tracing thick rays – Use pyramid beam, intersecting with shadow casters • Soft Shadow volumes – Projection of shadow caster to light source – Our method pixel 7
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