Live 2022.09.16 - Revision history

Admin: /* Stream Summary */

2022-12-02T11:20:34Z

Stream Summary

← Older revision		Revision as of 11:20, 2 December 2022
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	After experimenting with the shader, I procedurally model a simple maze-like geometric form using the path finding node in Houdini. This form is then instanced to a point cloud to create the repetitive fractal-like form, similar to Bismuth crystals.		After experimenting with the shader, I procedurally model a simple maze-like geometric form using the path finding node in Houdini. This form is then instanced to a point cloud to create the repetitive fractal-like form, similar to Bismuth crystals.


	Below is the final render with some animation applied to the geometry as well as the lights ⤵		Below is the final render with some animation applied to the geometry as well as the lights ⤵

	[[File:2022_09_16_mtlx_metal_spin.gif \| 960px]]		[[File:2022_09_16_mtlx_metal_spin.gif \| 960px]]


	Karma viewport example tumbling around the scene ⤵		Karma viewport example tumbling around the scene ⤵

Admin: /* Stream Summary */

2022-12-02T11:20:20Z

Stream Summary

← Older revision		Revision as of 11:20, 2 December 2022
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	After experimenting with the shader, I procedurally model a simple maze-like geometric form using the path finding node in Houdini. This form is then instanced to a point cloud to create the repetitive fractal-like form, similar to Bismuth crystals.		After experimenting with the shader, I procedurally model a simple maze-like geometric form using the path finding node in Houdini. This form is then instanced to a point cloud to create the repetitive fractal-like form, similar to Bismuth crystals.

	Below is the final render with some animation applied to the geometry as well as the lights.		Below is the final render with some animation applied to the geometry as well as the lights ⤵

	[[File:2022_09_16_mtlx_metal_spin.gif \| 960px]]		[[File:2022_09_16_mtlx_metal_spin.gif \| 960px]]

	Karma viewport example tumbling around the scene		Karma viewport example tumbling around the scene ⤵

	[[File:2022_09_16_viewport_karma.gif \| 960px]]		[[File:2022_09_16_viewport_karma.gif \| 960px]]

Admin: /* Stream Summary */

2022-12-02T10:00:51Z

Stream Summary

← Older revision		Revision as of 10:00, 2 December 2022
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	[[File:2022_09_16_mtlx_metal_spin.gif \| 960px]]		[[File:2022_09_16_mtlx_metal_spin.gif \| 960px]]

			Karma viewport example tumbling around the scene

			[[File:2022_09_16_viewport_karma.gif \| 960px]]

	== References ==		== References ==

Admin at 12:40, 1 December 2022

2022-12-01T12:40:42Z

← Older revision		Revision as of 12:40, 1 December 2022
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	= Iridescent Bismuth =		= Iridescent Bismuth =
			[[File:content_thumbnail_2022_09_16.jpg \| 960px]]
	== Introduction ==		== Introduction ==
	Bismuth Crystals are a really interesting area to study. The [https://en.wikipedia.org/wiki/Bismuth hopper crystal forms] and [https://en.wikipedia.org/wiki/Iridescence iridescent colors] are very nice to look at and create an almost alien or psychedelic feeling.		Bismuth Crystals are a really interesting area to study. The [https://en.wikipedia.org/wiki/Bismuth hopper crystal forms] and [https://en.wikipedia.org/wiki/Iridescence iridescent colors] are very nice to look at and create an almost alien or psychedelic feeling.

Admin at 12:40, 1 December 2022

2022-12-01T12:40:08Z

← Older revision		Revision as of 12:40, 1 December 2022
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	= Iridescent Bismuth =		= Iridescent Bismuth =
			== Introduction ==
	Bismuth Crystals are a really interesting area to study. The [https://en.wikipedia.org/wiki/Bismuth hopper crystal forms] and [https://en.wikipedia.org/wiki/Iridescence iridescent colors] are very nice to look at and create an almost alien or psychedelic feeling.		Bismuth Crystals are a really interesting area to study. The [https://en.wikipedia.org/wiki/Bismuth hopper crystal forms] and [https://en.wikipedia.org/wiki/Iridescence iridescent colors] are very nice to look at and create an almost alien or psychedelic feeling.

	Similar phenomenons can be observed in [https://en.wikipedia.org/wiki/Tempering_%28metallurgy%29 metallurgy], [https://en.wikipedia.org/wiki/Patterns_in_nature#Tessellations patterns in nature], and [https://www.sciencealert.com/we-now-know-why-natural-selection-may-favor-iridescence-in-some-animals some animals in nature].		Similar phenomenons can be observed in [https://en.wikipedia.org/wiki/Tempering_%28metallurgy%29 metallurgy], [https://en.wikipedia.org/wiki/Patterns_in_nature#Tessellations patterns in nature], and [https://www.sciencealert.com/we-now-know-why-natural-selection-may-favor-iridescence-in-some-animals some animals in nature].

			== Stream Summary ==
	The [https://autodesk.github.io/standard-surface/#closures/metal Standard Surface] model implemented in Karma and MaterialX has a thin film model for metallic reflections, which can create these rainbow-like iridescence effects.		The [https://autodesk.github.io/standard-surface/#closures/metal Standard Surface] model implemented in Karma and MaterialX has a thin film model for metallic reflections, which can create these rainbow-like iridescence effects.

Admin at 12:32, 1 December 2022

2022-12-01T12:32:19Z

← Older revision		Revision as of 12:32, 1 December 2022
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	[[File:2022_09_16_mtlx_metal_spin.gif \| 960px]]		[[File:2022_09_16_mtlx_metal_spin.gif \| 960px]]




	== References ==		== References ==

Admin at 12:32, 1 December 2022

2022-12-01T12:32:07Z

← Older revision		Revision as of 12:32, 1 December 2022
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			= Iridescent Bismuth =
	Bismuth Crystals are a really interesting area to study. The [https://en.wikipedia.org/wiki/Bismuth hopper crystal forms] and [https://en.wikipedia.org/wiki/Iridescence iridescent colors] are very nice to look at and create an almost alien or psychedelic feeling.		Bismuth Crystals are a really interesting area to study. The [https://en.wikipedia.org/wiki/Bismuth hopper crystal forms] and [https://en.wikipedia.org/wiki/Iridescence iridescent colors] are very nice to look at and create an almost alien or psychedelic feeling.

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	[[File:2022_09_16_mtlx_metal_spin.gif \| 960px]]		[[File:2022_09_16_mtlx_metal_spin.gif \| 960px]]

	~~= Iridescent Metallics =~~

Admin at 12:31, 1 December 2022

2022-12-01T12:31:05Z

← Older revision		Revision as of 12:31, 1 December 2022
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	Bismuth [https://~~www~~.~~wolframscience~~.~~com~~/~~nks~~/~~notes-8-2--~~hopper~~-crystals~~/ ~~hopper crystal~~]		Bismuth Crystals are a really interesting area to study. The [https://en.wikipedia.org/wiki/Bismuth hopper crystal forms] and [https://en.wikipedia.org/wiki/Iridescence iridescent colors] are very nice to look at and create an almost alien or psychedelic feeling.
	[https://en.wikipedia.org/wiki/Tempering_%28metallurgy%29] [https://en.wikipedia.org/wiki/Patterns_in_nature#Tessellations patterns in nature]
	[https://www.sciencealert.com/we-now-know-why-natural-selection-may-favor-iridescence-in-some-animals iridescence in ~~nature~~]		Similar phenomenons can be observed in [https://en.wikipedia.org/wiki/Tempering_%28metallurgy%29 metallurgy], [https://en.wikipedia.org/wiki/Patterns_in_nature#Tessellations patterns in nature], and [https://www.sciencealert.com/we-now-know-why-natural-selection-may-favor-iridescence-in-some-animals some animals in nature].

			The [https://autodesk.github.io/standard-surface/#closures/metal Standard Surface] model implemented in Karma and MaterialX has a thin film model for metallic reflections, which can create these rainbow-like iridescence effects.

			I wanted to try out the thin film model and initially test it on a shaderball to get a sense of how the settings and parameters work.

			After experimenting with the shader, I procedurally model a simple maze-like geometric form using the path finding node in Houdini. This form is then instanced to a point cloud to create the repetitive fractal-like form, similar to Bismuth crystals.

			Below is the final render with some animation applied to the geometry as well as the lights.

			[[File:2022_09_16_mtlx_metal_spin.gif \| 960px]]

	= Iridescent Metallics =		= Iridescent Metallics =
	~~[[File:2022_09_16_mtlx_metal_spin.gif \| 960px]]~~
	~~https://en.wikipedia.org/wiki/Bismuth~~

	~~https://en.wikipedia.org/wiki/Iridescence~~

Admin: /* Scene File */

2022-12-01T12:14:37Z

Scene File

← Older revision		Revision as of 12:14, 1 December 2022
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	= Scene File =		= Scene File =
	[[:File:~~2022_09_11_greeble_techniques~~.hiplc \| ~~2022_09_11_greeble_techniques~~.hiplc]]		[[:File:2022_09_16_mtlx_bismuth_metals.hiplc \| 2022_09_16_mtlx_bismuth_metals.hiplc]]

Admin: /* References */

2022-12-01T12:10:49Z

References

← Older revision		Revision as of 12:10, 1 December 2022
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	I also suggest taking a look at [https://www.brunomilitelli.com/portfolio/bismuto Bruno Militelli's Bismuth photographs]		I also suggest taking a look at [https://www.brunomilitelli.com/portfolio/bismuto Bruno Militelli's Bismuth photographs]

	You can also [https://sketchfab.com/3d-models/bismuth-e95f85960c5344d2857ef948ad103e20 find some 3d models of Bismuth on Sketchfab].		You can also [https://sketchfab.com/3d-models/bismuth-e95f85960c5344d2857ef948ad103e20 find some 3d models of Bismuth on Sketchfab] which can be downloaded and imported into Houdini to test shaders on.

	== Modeling with Find Shortest Path ==		== Modeling with Find Shortest Path ==