https://forums.autodesk.com/t5/bifrost-forum/arnold-color-mapping-based-on-bifrost-liquid-velocity/m-p/12462891#M670 <P>I'm trying to animate a boat cutting through some ocean waves.&nbsp; For additional realism, I thin the water should change color based on velocity when rendered.&nbsp; Currently, the ocean surface is either a constant color or 100% foam particles.&nbsp; The bifrost particles will change from blue to white based on velocity in the viewport, but the Arnold render doesn't do that.<BR /><BR /><A href="https://youtu.be/NN0SbcReOek" target="_blank" rel="noopener">This image is taken from a Houdini tutoria</A>l and shows what I am after.&nbsp; The faster, agitated water will gradually turn into foam by shades of lighter blue before transitioning into foam particles.<BR /><BR /></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="dangertaz1_0-1703615287729.png" style="width: 600px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/1308029iA2E830FE63E14D5C/image-size/medium?v=v2&amp;px=400" role="button" title="dangertaz1_0-1703615287729.png" alt="dangertaz1_0-1703615287729.png" /></span></P><P>Is there a way to do this with Bifrost liquids and BOSS?</P> Tue, 26 Dec 2023 18:30:56 GMT dangertaz1 2023-12-26T18:30:56Z https://forums.autodesk.com/t5/bifrost-forum/arnold-color-mapping-based-on-bifrost-liquid-velocity/m-p/12462891#M670 <P>I'm trying to animate a boat cutting through some ocean waves.&nbsp; For additional realism, I thin the water should change color based on velocity when rendered.&nbsp; Currently, the ocean surface is either a constant color or 100% foam particles.&nbsp; The bifrost particles will change from blue to white based on velocity in the viewport, but the Arnold render doesn't do that.<BR /><BR /><A href="https://youtu.be/NN0SbcReOek" target="_blank" rel="noopener">This image is taken from a Houdini tutoria</A>l and shows what I am after.&nbsp; The faster, agitated water will gradually turn into foam by shades of lighter blue before transitioning into foam particles.<BR /><BR /></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="dangertaz1_0-1703615287729.png" style="width: 600px;"><img src="https://forums.autodesk.com/t5/image/serverpage/image-id/1308029iA2E830FE63E14D5C/image-size/medium?v=v2&amp;px=400" role="button" title="dangertaz1_0-1703615287729.png" alt="dangertaz1_0-1703615287729.png" /></span></P><P>Is there a way to do this with Bifrost liquids and BOSS?</P> Tue, 26 Dec 2023 18:30:56 GMT https://forums.autodesk.com/t5/bifrost-forum/arnold-color-mapping-based-on-bifrost-liquid-velocity/m-p/12462891#M670 dangertaz1 2023-12-26T18:30:56Z https://forums.autodesk.com/t5/bifrost-forum/arnold-color-mapping-based-on-bifrost-liquid-velocity/m-p/12462904#M671 <P><A href="https://youtu.be/f2_zfc6yPGE?si=ya07x7-SBv-9FRU_" target="_blank">https://youtu.be/f2_zfc6yPGE?si=ya07x7-SBv-9FRU_</A></P> Tue, 26 Dec 2023 18:40:11 GMT https://forums.autodesk.com/t5/bifrost-forum/arnold-color-mapping-based-on-bifrost-liquid-velocity/m-p/12462904#M671 darioOrtisi 2023-12-26T18:40:11Z https://forums.autodesk.com/t5/bifrost-forum/arnold-color-mapping-based-on-bifrost-liquid-velocity/m-p/12464014#M672 <P>Thank you&nbsp;<SPAN class="">darioOrtisi</SPAN>, I will try this method.</P> Wed, 27 Dec 2023 13:46:36 GMT https://forums.autodesk.com/t5/bifrost-forum/arnold-color-mapping-based-on-bifrost-liquid-velocity/m-p/12464014#M672 dangertaz1 2023-12-27T13:46:36Z