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add demos to README.md

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Abe Pazos
2025-08-28 10:05:55 +00:00
parent a4079327dd
commit d14d43d634
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orx-mesh-generators/README.md
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@@ -171,7 +171,14 @@ Interactive orbital camera.
### DemoExtrude01
Demonstrates how to create curved tubes by extruding
a circular contour along a 3D catmullRom-path
using [buildTriangleMesh] and [extrudeContourSteps].
The result is a [org.openrndr.draw.VertexBuffer] which can be rendered with
`drawer.vertexBuffer()`.
An [Orbital] camera makes the scene interactive. A minimal `shadeStyle` is used
to simulate a directional light.
![DemoExtrude01Kt](https://raw.githubusercontent.com/openrndr/orx/media/orx-mesh-generators/images/DemoExtrude01Kt.png)
@@ -179,7 +186,14 @@ Interactive orbital camera.
### DemoExtrude02
Demonstrates how to create hollow tubes with thickness by extruding
a circular [Shape] built out of two concentric circular contours.
Note that the inner contour is reversed.
The result is a [org.openrndr.draw.VertexBuffer] which can be rendered with
`drawer.vertexBuffer()`.
An [Orbital] camera makes the scene interactive. A minimal `shadeStyle` is used
to simulate a directional light.
![DemoExtrude02Kt](https://raw.githubusercontent.com/openrndr/orx/media/orx-mesh-generators/images/DemoExtrude02Kt.png)
@@ -187,7 +201,17 @@ Interactive orbital camera.
### DemoExtrude03
Demonstration creating two intersecting spirals
using [buildTriangleMesh] and [extrudeContourAdaptive].
This approach generates as many vertices as needed
based on the provided tolerance.
The result is a [org.openrndr.draw.VertexBuffer] which can be rendered with
`drawer.vertexBuffer()`.
The [Orbital] camera slowly rotates on its own while
still being interactive.
A minimal `shadeStyle` is used to simulate a directional light.
![DemoExtrude03Kt](https://raw.githubusercontent.com/openrndr/orx/media/orx-mesh-generators/images/DemoExtrude03Kt.png)
@@ -195,7 +219,15 @@ Interactive orbital camera.
### DemoExtrude04
Extruded Bézier tubes grown on a morphing Bézier surface.
A series of 3D Bézier tubes grown on an animated,
morphing, invisible Bézier surface.
As if we were drawing a series of parallel lines
on a piece of paper, then twisting and bending
that paper over time.
Demonstrates how to destroy a [org.openrndr.draw.VertexBuffer]
on every animation frame to avoid filling out the memory.
![DemoExtrude04Kt](https://raw.githubusercontent.com/openrndr/orx/media/orx-mesh-generators/images/DemoExtrude04Kt.png)
@@ -204,7 +236,15 @@ Extruded Bézier tubes grown on a morphing Bézier surface.
### DemoExtrude05
Extruded Bézier tubes grown on a morphing Bézier surface.
A series of 3D Bézier tubes grown on an animated,
morphing, invisible Bézier surface.
This variation uses [extrudeContourStepsScaled] to
apply a varying scaling to the cross-sections,
making the ends shrink to a hairline.
Calls `destroy` on the [org.openrndr.draw.VertexBuffer]
on every animation frame to free the used memory.
![DemoExtrude05Kt](https://raw.githubusercontent.com/openrndr/orx/media/orx-mesh-generators/images/DemoExtrude05Kt.png)
@@ -213,9 +253,16 @@ Extruded Bézier tubes grown on a morphing Bézier surface.
### DemoExtrude06
Demo extrudeContourStepsMorphed which allows to create a mesh with a morphing cross-section
based on the t value along a Path3D. In other words, a tube in which the cross-section does not need
to be constant, but can be scaled, rotated and displaced along its curvy axis.
Demo [extrudeContourStepsMorphed] which allows creating a mesh with an animated, morphing cross-section
based on the t value along a [Path3D]. In other words, a tube in which the cross-section does not need
to be constant, but can be scaled, rotated and displaced along its curved axis.
Loads a texture and applies a repeat-wrapping mode to it.
The texture can be enabled in the GLSL code inside
the shadeStyle.
The mesh is rendered 5 times rotated around axis Z
for a radial-symmetry effect.
![DemoExtrude06Kt](https://raw.githubusercontent.com/openrndr/orx/media/orx-mesh-generators/images/DemoExtrude06Kt.png)