MTIDataBuffer passed to shader not changed

[veewis]

Checklist

• I've read the README
• I've searched for existing GitHub issues

I pass multiple float values in the shader using the following method:

float outPoints[24];
MTIDataBuffer *buffer = [[MTIDataBuffer alloc] initWithBytes:outPoints length:sizeof(float) * 24 options:MTLResourceCPUCacheModeDefaultCache];
return [self.class.kernel applyToInputImages:@[self.inputImage, result] parameters:@{
        @"points": buffer
    } outputTextureDimensions:self.inputImage.dimensions outputPixelFormat:self.outputPixelFormat];

However, when the outPoints value changes, the buffer is also regenerated, but the shader value doesn't seem to change because I get the same result.

I would like to know how to solve the problem of not passing the outPoints correctly, thanks.

[YuAo]

Cannot reproduce the issue. Can you provide a complete example?