Hey guys, im trying to render something with a shadow catcher but i get insane amount of noise that i can see when i look in the alpha channel. i hope you guys can help me out!
im using a hdri to light the scene, i have also tried to use an area light but it gives that noise aswell. if i put my sample count higher the noise gets finer but thats not the problem. the shadow from the object is perfect on 32 samples but its just the additional noise around the object that i dont want.
i can only put 1 picture cuz im a new user but i included mulitple screenshots
pic 1: as you can see, looks just like a normal cube on the shadowcatcher with a nice shadow, no problems here.
pic 2: now i if take a look in the alpha channels its shows this mess… i just want the shadow from the cube, nothing else.
pic 3: here is my scene setup with just the cude, shadow catcher, camera and hdri as light.
pic 4: here is a frame without the cg and shadow so you can see the big difference.
pic 5: cuz if i put it onto some footage its noisy all over the place…
any idea whats causing this? am i missing something or? thanks!