Projection Map — Simulated Image Magnification Stage Design

[Brian Jones]

just put a texture on the light that has the image you want to project in the Transparency channel

[David Jolosky]

Not sure if that is what I need. I need the texture created to be whatever the camera (projection camera) is at the current moment. Imagine a camera pointed at a subject on the stage. I need that view to be a texture to another surface (say a screen behind the subject). Is that making sense? I can post a link to the “simulated” version. Or, can you provide a scratch project of what you are suggesting?

my thanks

dj

david jolosky, visual communications || design || construct || interact

[Brian Jones]

Ahh I understand, I don’t know if it can be done directly (passing the output of a camera to a texture) if that is true it makes sense since it would be a double render anyway. I’d be thinking once from the POV camera and once from the “main” cam with the POV cam render used as a texture. Or render twice and combine in post…

[David Jolosky]

Thanks much and yep, I came to the same conclusion. A double render, render once for the scenic and then the POV cam and composite. An extra step but makes for a perfect IMAG look for presenting to my clients.

cheers and thanks

dj

david jolosky, visual communications || design || construct || interact

[Adam Trachtenberg]

You can do this directly with the MoGraph Camera Shader.

[David Jolosky]

Once again Adam, THANK YOU. It’s these little features that I know exist but simply don’t know enough (YET) about C4D. Worked like a charm and now I have PERFECT IMAG.

My sincere thanks for your input.

cheers.

d

david jolosky, visual communications || design || construct || interact

[Brian Jones]

Cool, 11.5 I presume

[Bob King]

Here’s how I do it… https://bit.ly/biNoKH this is done in C4d 11.5 latest.

The IMAG camera has a target tag that looks at the zygote man. I had to move his center around a bit for proper framing. It also has an Align To Spline tag that handles the dolly move.

The screen has a material whose illumination channel is hooked to the IMAG camera with a Moggraph camera shader tag.

I find that this is a cool effect, but most people don’t want to pay for an animated render to use as a sales tool in our industry. Even though the cost of my render farm on Amazon EC2 is less than $35/hr, no one want to drop coin right now (we have enough trouble getting them to pay for trucking).

This is useful for showing camera angles to directors and producers using still shots.

On a side note, watch out for the chairs when you do theatre seating. Even low poly count chairs crush the render time when you try to seat a couple thousand PAX. I find that it’s best to spread out the seating and offer a glimpse of the concept of seating. 🙂

[David Jolosky]

Rock On Bob! Thank you so much! Appreciate the scratch C4d project as well. You and Adam both nailed it with the Mograph Camera Shader. Brilliant.

I took it a step further with a paper cutout of my exec, dropped him in the stage (in replacement of zygote man) and there you go! Instant IMAG for my stage design. Super helpful tip and makes the client sell that much easier. Thank you for the seating tip as well. I do find that I’m getting a bit bogged down in placing a ton of seating (this show I’m doing is an 1800 person venue) so “spreading and implying” seating is a good call.

Cheers and thank you again.

dj

david jolosky, visual communications || design || construct || interact

[Bob King]

Props to these guys! (pun intended) https://vyonyx.com/category/down/cutout-people/

I’ve used their stuff a bit instead of the zygote.

Enjoy!

-bk