How can I set surface material override through a shader?

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1

I have this viewmodel that has a shader as the material override/overlay but the other materials have shader materials, so I’m kind of stuck in one place. If you can help me, thank you very much!

2

Is there more you can explain about your situation? It’s hard to understand exactly what is happening, can you share your scene tree and what you are trying to change?

3

A little diagram for easy visualization:

image
image800×600 42.7 KB

The viewmodel shader:

shader_type spatial;
render_mode depth_draw_opaque, cull_disabled;

uniform float fov : hint_range(34, 75) = 54;

void vertex() {
	PROJECTION_MATRIX[0][0] = (1.0 / tan(fov * 0.5 * PI / 180.0)) / (VIEWPORT_SIZE.x / VIEWPORT_SIZE.y);
}

void fragment() {
	DEPTH = FRAGCOORD.z * 0.7;
}

Hope it clarifies enough!

4

You would have to re-create the material parameters in your shader.

If you’d prefer maybe you could use a StandardMaterial3D with the “Use Z-Clip Scale” property?

5

I will try this on a test project, I’ll get back as soon as I get desirable results!

6

Thank you very much! It worked very well with the FOV override! Makes me feel right at home.