PTGui/HDRI stitching guide

 Select all raw images from job/project file


Once loaded, choose 'Enable HDR mode'. PT Gui will automatically know how many sets of bracketed images the folder contains. Choose 'Merge bracketed images to HDR and link the positions'.

THE IMAGES NEED TO BE BRACKETED OTHERWISE IT WILL MESS WITH THE HDRI



Once this is done, choose 'Align images'



Navigate to the Create Panorama tab
Set Width x height to 8k: '8192 x 4096'
Check the HDR panorama tick box
Make sure HDR File format is OpenEXR
Change Output file prefix to naming convention as mentioned above
Output color space: ACEScg


In 'Settings'

Alpha Channel: No alpha channel

Bit depth: Float (32 bits per channel)

Compression: None


Then create panorama


IN NUKE:



View the first 'Spherical Transform node' to find the angle facing down towards the tripod
Drop a roto paint node beneath this in order to clone/paint over the tripod area




Drop in a mmColorTarget node (you may need to update the plugins in nuke)
Connect the source to your HDRI and the target to your macbeth chart captured on set

Source = HDRI 

Target = set ref photo

Popular posts from this blog

Simple Terrain path/mound

Image
  start by creating a grid for the terrain  Then use a group create and enable bounding box - Select the area where you want the path/mound. split the path so you can edit it to look like a mound. create an attribute adjust float - attribute name: bbox - operation: set always - pattern type: bounding box Then create an attribute wrangle - vex: @P.y += chramp('remap', @bbox) * chf("threshold"); - this will take the Y position and allow you to adjust its shape - the threshold then lets you adjust the stremgth  merge the rest of the grid back to the edited area - add a mountain to build the rest of the terrain shape                                                                            result
Read more