Depth of field effect not working with RPR generated images (color/depth)

[marceloroca]

I've generated color and depth images with RPR , and using the RIF_IMAGE_FILTER_DEPTH_OF_FIELD filter, but the result image is the same that the source.

this is the code:

//Create image filter
status = rifContextCreateImageFilter(context, RIF_IMAGE_FILTER_DEPTH_OF_FIELD, &filter);
if (status != RIF_SUCCESS)
{
    return -1;
}

// Load input image
inputImage = ImageTools::LoadImage("images/22.png", context);
inputImageDepth = ImageTools::LoadImage("images/22_Depth.png", context);

if (!(inputImage && inputImageDepth))
{
    return -1;
}

//Create output image
rif_image_desc desc;
size_t retSize;
rifImageGetInfo(inputImage, RIF_IMAGE_DESC, sizeof(desc), &desc, &retSize);
status = rifContextCreateImage(context, &desc, nullptr, &outputImage);
if (status != RIF_SUCCESS)
{
    return -1;
}

//Attach filter and set parameters
if (rifImageFilterSetParameter1u(filter, "kernelSize", RIF_DEPTH_OF_FIELD_FILTER_KERNEL_SIZE_LARGE) != RIF_SUCCESS) { return -1; }
if (rifImageFilterSetParameter1f(filter, "focusD", 1.8f) != RIF_SUCCESS) { return -1; }
if (rifImageFilterSetParameter1f(filter, "aperture", 0.8f) != RIF_SUCCESS) { return -1; }
if (rifImageFilterSetParameterImage(filter, "depthImg", inputImageDepth) != RIF_SUCCESS) { return -1; }
if (rifCommandQueueAttachImageFilter(queue, filter, inputImage, outputImage) != RIF_SUCCESS) { return -1; }

//Execute queue
if (rifContextExecuteCommandQueue(context, queue, nullptr, nullptr, nullptr) != RIF_SUCCESS) { return -1; }

//Save output image
ImageTools::SaveImage(outputImage, "22_final.png");

the depth image is generated with RPR with this code:

rpr_framebuffer frame_buffer_depth, frame_buffer_depth2;
CHECK(rprContextCreateFrameBuffer(context, fmt, &desc, &frame_buffer_depth));
CHECK(rprContextCreateFrameBuffer(context, fmt, &desc, &frame_buffer_depth2));
CHECK(rprFrameBufferClear(frame_buffer_depth));
CHECK(rprFrameBufferClear(frame_buffer_depth2));
CHECK(rprContextSetAOV(context, RPR_AOV_DEPTH, frame_buffer_depth));

// Progressively render an image

CHECK(rprContextResolveFrameBuffer(context, frame_buffer_depth, frame_buffer_depth2, true));
CHECK(rprFrameBufferSaveToFile(frame_buffer_depth2, "22_depth.png"));

The depth image has pixel values between 1 and 10000.

RPR SDK version: 0x00103503 build: 0x92f604e2 RIF SDK version: 1.5.3 commit: 0x47b72111 OS: Windows 10 GPU: Radeon RX 5500 XT Driver: 20.5.1

[stmuxa]

Can you share the generated images as well? I think it's because png format cannot keep your depth buffer values (between 1 and 10000), they are all clamped to 256. Try saving it to exr like this CHECK(rprFrameBufferSaveToFile(frame_buffer_depth2, "22_depth.exr"));

[marceloroca]

I've changed to "exr", but I have the same problem, and others problems:

• If I export the RPR_AOV_COLOR to "exr" file, the image is completely different than a "png" file
• If put values lower than 1 in "focusD" all the image is out of focus, but for 1 and over all the image is on focus

I'm sharing the generated images, the RPR program to generate the images and the RIF program to apply the filter

dof test.zip

RPR program is a modified of SDK tutorial 22_material_uber RIF program is a modified from Bloom filter

[stmuxa]

@marceloroca can you also collect trace files accodring to this manual https://radeon-pro.github.io/RadeonProRenderDocs/en/rif/tracing.html archive them and attach. Thanks.

[marceloroca]

Here is, rif_trace_1595437696.zip

[stmuxa]

So, the gray cubes are at about 19-21 meters from camera I set:

rifImageFilterSetParameter1f(filter, "focusD", 20);

I also changed focal length parameter to 100 mm (https://radeon-pro.github.io/RadeonProRenderDocs/en/rif/filters/depth_of_field.html)

rifImageFilterSetParameter1f(filter, "focalL", 100);

and got the image blurred.

[marceloroca]

thanks for your help, it's working