koobas.hobune.stream
setting vertex color of mesh not working
I'm trying to set the vertex color of a mesh. http://docs.unity3d.com/Documentation/ScriptReference/Mesh-colors.html
I have the following script attached to two objects in the scene. One of them is a custom mesh exported as FBX from 3DSMax and the other is a Unity Cube object.
void Update ()
{
Mesh mesh = GetComponent<MeshFilter>().mesh;
Vector3[] vertices = mesh.vertices;
Color[] colors = new Color[vertices.Length];
for (int i = 0; i < vertices.Length; i++)
{
colors[i] = Color.red;
}
mesh.colors = colors;
}
What am I missing here? Why isn't the mesh changing color? Oh and I know that I could just change the material color I'm trying a more advanced effect I just paired down the code for this example.
Thanks guys
What you have should work. Are you sure your shader supports vertex color? What you are doing here is essentially what I did in the ChangeColor() method in this post, and it worked fine. There is a very simple vertex shader in this post as well.
http://answers.unity3d.com/questions/391561/create-a-mesh-and-color-cubes.html
AAAAWWWWWW of course I was using the default diffused shader. Thanks!!! If anyone else is interested here's a shader on the Wiki that supports multiple vertex colors: http://wiki.unity3d.com/index.php?title=VertexColor
robert, I have the exact same problem, I attempting to change vert alpha's for use in a fog of war, in order to test it i set the visible area to yellow ins$$anonymous$$d of alpha = 0; absolutely nothing happened. I read your post and applied a vertex shader, still nothing happened. Is there any chance i could beg your assistance?
In a new scene with some simple geometry, try your code with the shader at the link. If you cannot get it to work, post a new question along with your code.
Hi I wonder if someone knows how to assign the new colors to the mesh as a slow transition over time, when using mesh.colors = colors the modification happens instantly but I am looking for if to happen as a slow transition. I've been trying using:
mesh.colors = Color.Lerp (colorsA, colorsB, t); or
But since colorsA and colorsB are arrays containing the different colors for each one of the mesh vertices I haven't managed to make Lerp work.
you can lerp whole materials for that. Reffer to: https://docs.unity3d.com/ScriptReference/$$anonymous$$aterial.Lerp.html
