Difference between revisions of "Live 2022.08.26"

Latest revision as of 13:51, 14 September 2022

Samsung s22 Style Particle Rendering

Scene Files

Summary

Starting with a basic FLIP simulation which spins the fluid about the origin and injects turbulence into faster moving areas, we look at techniques to light, shade and render the particles like the recent Samsung s22 campaign.

Over the course of the stream a few different compositions, lighting setups and color treatments are explored as well as PostFX color correcting and grading.

Video On Demand

00:00:00 Introduction
00:01:35 simulation overview
00:08:40 bringing simulation cache in
00:09:42 viewport settings for particles
00:16:05 particle density visualized as color
00:27:50 setting up cameras
00:30:13 adding redshift parms for particle rendering
00:31:50 preview rendering
00:33:30 crop particles to camera frustum
00:43:07 adding rect lights
00:52:10 making particle shader
01:15:25 starting another color and composition
01:36:00 starting another color and composition
02:04:00 wrapping up

To speed up render times when rendering particles like this, you can reduce the reflection trace depth.

Links

The Samsung advertising images can be seen here on the product page: Galaxy s22

@@ Line 2: / Line 2: @@
 [[File:2022_08_26_flip_splash_particle_spinner_v006_2.jpg | 960px]]
-== Scene File ==
+== Scene Files ==
+* [[:File:2022_08_26_s22_particles_003.hiplc | s22_particles_003.hiplc]]
-Download the Houdini file: [[:File:2022_08_23_materialx_USD_008.hiplc|2022_08_23_materialx_USD_008.hiplc]]
+* [[:File:2022_08_26_s22_particles_004.hiplc | s22_particles_004.hiplc]]
+* [[:File:2022_08_26_s22_particles_005.hiplc | s22_particles_005.hiplc]]
 == Summary ==
@@ Line 31: / Line 32: @@
-During the live stream, I didn't connect the height to normal node properly which was causing the shading artifacts.  To fix this, you can add a normal map node in between the shader connection like so.
+To speed up render times when rendering particles like this, you can reduce the reflection trace depth.
-[[File:Screenshot_at_2022-09-09_14-39-32.png | 900px]]
+[[File:Screenshot_at_2022-09-14_11-44-19.png | 900px]]
 == Links ==
-You can read more about using [https://github.com/AcademySoftwareFoundation/MaterialX#readme MaterialX] in Karma and Solaris [https://www.sidefx.com/docs/houdini/solaris/materialx.html here].
+The Samsung advertising images can be seen here on the product page: [https://www.samsung.com/pt/smartphones/galaxy-s22/ Galaxy s22]
-The [https://www.sidefx.com/docs/houdini/nodes/vop/mtlxstandard_surface.html MtlX Standard Surface] node is based off of the [https://autodesk.github.io/standard-surface/ Autodesk Standard Surface]
-For more details, see the [https://materialx.org/assets/MaterialX.v1.38.Spec.pdf MaterialX specification] on the nodes, functionality and capabilities.
 == Additional Images ==
 <gallery mode="packed">
-File:2022_08_23_material_USD_001.jpeg
+File:2022_08_26_flip_splash_particle_spinner_v004.jpg
-File:2022_08_23_material_USD_009_cam2.jpeg
+File:2022_08_26_flip_splash_particle_spinner_v006.jpg
-File:2022_08_23_material_USD_008.jpeg
+File:2022_08_26_flip_splash_particle_spinner_v003_1.jpg
-File:2022_08_23_material_USD_009_cam1.jpeg
+File:2022_08_26_flip_splash_particle_spinner_v012.jpg
-File:2022_08_23_materialX_USD_009_cam4.jpeg
+File:2022_08_26_flip_splash_particle_spinner_v009.jpg
 </gallery>