Help using compute shaders

[mystic gazelle]

The code:

        // Create rendering device
        var rd = RenderingServer.CreateLocalRenderingDevice();
        Debug.Print("Creating Rendering Device");

        // Compile Shader
        var shaderFile = GD.Load<RDShaderFile>("res://shaders/shots_compute.glsl");
        var shaderSpirV = shaderFile.GetSpirV();
        Debug.Print("Got Shader Byte Code");
        Debug.Print(shaderSpirV.ToString());
        var shader = rd.ShaderCreateFromSpirV(shaderSpirV);  // <--- Line 18 ---<
        Debug.Print("Compiled Shader");

        // Prepare our data
        int[] input = {0};
        var inputBytes = new byte[sizeof(int)];
        Buffer.BlockCopy(input, 0, inputBytes, 0, inputBytes.Length);
        Debug.Print("Preped Data");
        
        // Create storage buffer
        var buffer = rd.StorageBufferCreate((uint) inputBytes.Length, inputBytes);
        Debug.Print("Created Buffer");

        // Create uniform
        var uniform = new RDUniform
        {
            UniformType = RenderingDevice.UniformType.StorageBuffer,
            Binding = 0
        };
        uniform.AddId(buffer);
        var uniformSet = rd.UniformSetCreate([uniform], shader, 0);
        Debug.Print("Created Storage Buffer");

        // Create shader pipeline
        var pipeline = rd.ComputePipelineCreate(shader);
        var computeList = rd.ComputeListBegin();
        rd.ComputeListBindComputePipeline(computeList, pipeline);
        rd.ComputeListBindUniformSet(computeList, uniformSet, 0);
        rd.ComputeListDispatch(computeList, xGroups: (uint) interval, yGroups: 1, zGroups: 1);
        rd.ComputeListEnd();

        // Submit to GPU
        rd.Submit();

        // Wait for Sync. Only for testing
        rd.Sync();

        var outputBytes = rd.BufferGetData(buffer);
        int[] output = new int[input.Length];
        Buffer.BlockCopy(outputBytes, 0, output, 0, outputBytes.Length);
        Debug.Print(output[0].ToString());

        return output[0];

[heavy forge]

which line is line 18?

also is this MonteCarloGPUCompute.cs or MonteCarlo.cs?

can you point out the relevant lines mentioned in the error

[mystic gazelle]

Hi

Line 18 is the line creating the shader from SpirV: var shader = rd.ShaderCreateFromSpirV(shaderSpirV);