scrawk / marching-cubes-on-the-gpu Goto Github PK

I know this is old but you mention this in your readme, why is that so ? I am fairly new to compute shaders and have no idea why this is the case.

Shader warning in 'MarchingCubes': Program 'CSMain', warning X4714: sum of temp registers and indexable temp registers times 512 threads exceeds the recommended total 16384. Performance may be reduced at kernel CSMain (on vulkan).

What do i do to fix this (I don't understand this error code)

I experiment with your code. Firstly I provisionally removed perlin noise to work with simply plain or cube. I've just overwritten m_perlinNoise shader result.

float[] verts = new float[SIZE];
m_noiseBuffer.GetData(verts);

for (int z = 0; z < N; z++)
    for (int y = 0; y < N; y++)
        for (int x = 0; x < N; x++)
        {
            verts[x + y * N + z * N * N] = 1;

            if (z < 3)
                verts[x + y * N + z * N * N] = -1;
        }

m_noiseBuffer.SetData(verts);

But Igot a black plain. I've checked that all generated vertices have NaN vector normals (using your ReadBackMesh func).

I've also found a clue. This displays a color:

float[] verts = new float[SIZE];
m_noiseBuffer.GetData(verts);

for (int z = 0; z < N; z++)
    for (int y = 0; y < N; y++)
        for (int x = 0; x < N; x++)
        {
            verts[x + y * N + z * N * N] = 1;

            if (z == 3)
                verts[x + y * N + z * N * N] = 0.9f;

            if (z < 3)
                verts[x + y * N + z * N * N] = -1;
        }

m_noiseBuffer.SetData(verts);

Normals depend on deeper vertices and those have to have different values?