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#GeometryNodes

1 post1 participant0 posts today
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aeva

I did some more UV mapping experiments in #blender #geometrynodes tonight.

This one uses a UV mapping strategy inspired by triplanar mapping and granular synthesis. Each vertex maps its tangent plane to a random disc in UV space, and then the UVs and weights needed to make interpolation work are stored in the face corners. The material samples the same texture three times and applies the weights.

A rendering of six objects in Blender demonstrating a texturing experiment. Top row from left to right shows an icosahedron textured with reeds, Suzanne the Blender monkey textured with a closeup photo of my cat Boris, and an icosahedron also textured with my cat Boris. Bottom row from left to right shows an icosahedron textured with a clay cuneiform tablet, Suzanne the Blender monkey covered with a generic UV test grid, and an icosahedron textured with a more different colorful UV test grid.
Public
aeva

I made a little sky / background gradient generator thing in #blender #geometrynodes today. It draws a sphere for the sky and a disc for the ground which are both aligned to the camera. The colors are pulled from two gradients which are separate meshes so I can use vertex painting to fiddle with the colors.

The rendered image is a basic exaggerated sky gradient from light blue to dark blue and the fake ground part of the rendered image starts as a hazy blue ish brown at the horizon to a lime green near the viewer. The horizon has a slight curve despite the camera being level on the ground plane, because the ground disc is pivoted slightly. This screenshot shows the rendered image, a slightly different view of the inside of the sphere, and the gradients. The gradients view shows an obscured half that isn't seen in the rendered images where the ramp continues to a deep red and terminates at a bright red.
Public
Jesse Spielman

Is it possible to generate curves in #geometrynodes and then export them in some vector format (eg: #svg?).

I enabled the #blender "curve tools" addon so I have "Export Curves (.svg)" in my export menu but:
1) If I select a curve and try to export it I don't get the affect of the geometry nodes -- just the original curve.
2) If I try to bake the geometry nodes setup I get "Cannot apply constructive modifiers on curve. Convert curve to mesh in order to apply"

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