CODEWITHSUNDEEP
openglunity-game-engineglsl
17th Dimension
17th Dimension

Reputation: 73

Passing a float3 / vec3 to a shader via unity properties

I am writing a shader and I would like to pass a vec3 along to the input. however everything I could find is always passing either a single float a vec4, texture or number range. Is it possible to send a vanilla vec3 along to a shader in unity?

Properties
{
    offset ("formula Offset", Vector) = (0, 0, 0)
}

Doesn't seem to work as I hoped. To get it to compile I have been doing this:

Properties
{
    offset ("formula Offset", Vector) = (0, 0, 0, 0)
}

// offset.xyz //Extract relevant data from vector

this just doesn't feel right. Is there a better way?

Upvotes: 6

Views: 19961

Answers (1)

Iggy
Iggy

Reputation: 4888

Looks like when you mark a property as Vector it has to have 4 components. Even the documentation says: "Vector properties are displayed as four number fields."

This really isn't as bad as it looks, just set the last components to zero.

Note that annoyingly the matching variable is NOT "vector", it's "float4".

Full list:

https://stackoverflow.com/a/37749687/294884

Upvotes: 5

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