by funk » Thu Oct 14, 2021 2:18 pm
funk
Thu Oct 14, 2021 2:18 pm
Im not a houdini user, but since no one else is helping I'll explain why this doesn't work.
The "vertex float attribute" (called "Greyscale vertex attribute" in standalone) is a TEXTURE.
The "Texture Emission" node "Power" pin is a FLOAT VALUE.
You can't connect a texture to a value. The houdini docs show color coded pins on nodes, so this should be obvious, because the pin colors are different.
You need to connect the "vertex float attribute" to the "Texture Emission" > Texture pin instead. You can drive it with values higher than 1.0 for more emission.
If you want to color the light, use a multiply texture node with the rgb color and "vertex float attribute" as inputs, then connect the multiply node to the "Texture Emission".
Win10 Pro/ Ryzen 5950X / 128GB / RTX 4090 / MODO
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