Author Topic: Tone map control on shadow catcher material  (Read 382 times)

2024-02-08, 21:22:39

masterzone

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It would be great if the tone map control shader works if placed into the shadow catcher material for perfect video and photo compositing.
In this way we can achieve great result with compositing.
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2024-02-09, 07:55:23
Reply #1

Beanzvision

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And what if you use it in the sky/HDRI slot prior to assigning to the shadowcatcher? Would this be the same thing?
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2024-02-10, 10:19:23
Reply #2

masterzone

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Hi B,

Let me explain the workflow:

If you want to match the cgi with a videoclip into the background, the tone map control works perfectly to it and the video into background won’t be afflicted by camera settings.
But if you have some elements into the scene that needs to be “matched” with the background video you need the shadow catcher mat so the element will cast shadows into fake elements. But the tone map control shader doesn’t works on the shadow catcher so you must remove it from the shadow catcher material otherwise you will get wrong and incorrect lighting and color.

Often who work on compositing needs to match the video with some fake object for masks or shadowing and it can’t be done without compatibility of tone map shader with shadow catcher shader.

Let me know if I explained this in a good way :)

Quote
And what if you use it in the sky/HDRI slot prior to assigning to the shadowcatcher? Would this be the same thing

Mmm what do you mean for “hdr/shader slot?” to use the picture or video for composting placed into the sky is the right way but the problem is not the tone map control shader placed into the sky or background object, the real issue of tone map control shader is if you place it into the shadow catcher material. It doesn’t works and so if you don’t use it you will see differences from sky/backgound (afflicted by tone map control shader) and the shadow catcher objects without tone map control shader.
« Last Edit: 2024-02-10, 12:36:31 by masterzone »
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2024-02-10, 13:36:26
Reply #3

Juraj

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I remember trying to trick this (in Max though) by using ShadowCatcher>RaySwitch>TonemapControl in DirectlyVisible Slot. But I don't remember how well it worked (or didn't work).
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2024-02-10, 15:20:12
Reply #4

masterzone

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mmm thanks for your tips...let me give it a try, strange tricks anyway...:)
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2024-02-12, 09:01:29
Reply #5

masterzone

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I found the solution!! if you using Tone map control into che shadow catcher you must set the projection TAG to Frontal instead of leave as is...
If you don't use the tone map control you can drag the material into the object without set the TAG....maybe corona developers has set the mapping to frontal into the shadow catcher material...

YES!!!!

ps: you can close the topic
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