Purpose:
\nTo find and calculate the difference between diffuse and glass color inputs for allowing end users to use texture maps as intended without having to do the math themselves<\/p>\n
Hypothesis:
\nBoth the linear and color space curve will need to be changed as to allow results as expected<\/p>\n
Materials:
\n– Maya 2018.2+
\n– RenderMan for Maya 22.1+
\n– Time
\n– Adobe Photoshop CC 2018 or photo editing software capable of opening 32-bit image files<\/p>\n
Set-Up:
\nTwo shot glass like objects will sit in identical lighting conditions but mirrored
\nOne will have a multiplyDivide node plugged into its diffuse color input while the other will have the same multiplyDivide node plugged into its glass color input. A cube will have a PxrConstant with its emission input also connected to the multiplyDivide node
\nRendering will be done at 540p with PxrVCM unchanged other than ray-depth increased to 16 diffuse and 8 specular<\/p>\n
Conclusion:
\nOnly the color space curve needs to be altered for best effect<\/p>\n
Data can be found attached below including the scenes (Maya ASCII) and renders (OpenEXR-Half Float) included.<\/p>\n
Dataset (1.04GB ZIP archieve)<\/a><\/p>\n","protected":false},"excerpt":{"rendered":" Purpose: To find and calculate the difference between diffuse and glass color inputs for allowing end users to use texture maps as intended without having to do the math themselves Hypothesis: Both the linear and color space curve will need to be changed as to allow results as expected Materials: – Maya 2018.2+ – RenderMan … Continue reading The Glass Input Color Study for PxrSurfaces within RenderMan 22.1 for Maya<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"image","meta":[],"categories":[28],"tags":[],"_links":{"self":[{"href":"https:\/\/zach.yarnot.com\/index.php\/wp-json\/wp\/v2\/posts\/187"}],"collection":[{"href":"https:\/\/zach.yarnot.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zach.yarnot.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zach.yarnot.com\/index.php\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/zach.yarnot.com\/index.php\/wp-json\/wp\/v2\/comments?post=187"}],"version-history":[{"count":2,"href":"https:\/\/zach.yarnot.com\/index.php\/wp-json\/wp\/v2\/posts\/187\/revisions"}],"predecessor-version":[{"id":333,"href":"https:\/\/zach.yarnot.com\/index.php\/wp-json\/wp\/v2\/posts\/187\/revisions\/333"}],"wp:attachment":[{"href":"https:\/\/zach.yarnot.com\/index.php\/wp-json\/wp\/v2\/media?parent=187"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zach.yarnot.com\/index.php\/wp-json\/wp\/v2\/categories?post=187"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zach.yarnot.com\/index.php\/wp-json\/wp\/v2\/tags?post=187"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}