Visualization
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GDL cyclorama shading question

David Collins
Advocate
I've created a background cyclorama for a VR panorama using GDL, as in the GDL cookbook.

Here's my question: I can turn the shadow casting off in GDL, but is there any way I can reduce the basic shading effect on the cyclorama cylinder? It still shows light and dark depending on the direction of the sun, which pretty much gives the whole show away.
David Collins

Win10 64bit Intel i7 6700 3.40 Ghz, 32 Gb RAM, GeForce RTX 3070
AC 27.0 (4001 INT FULL)
6 REPLIES 6
Dwight
Newcomer
Shame on you.
You have had my book so long you are forgetting.

Page 154

Switch material reflectance to "Constant"
Dwight Atkinson
Dwight
Newcomer
Oh shame on me.
The GDL Cyclorama calls a picture.
Can't make THAT "constant."
To get the constant thing to work, you must apply the material as a wall surface to a cylindric wall.
Dwight Atkinson
David Collins
Advocate
Dwight wrote:
Shame on you.
You have had my book so long you are forgetting.
Actually, its worse than that. The book is great, but I'm not that keen on Lightworks. I'm using the old ArchiCAD rendering engine as a fast alpha channel tester. I'll do the serious rendering in Artlantis, which is where I really should be looking for an answer to the shading problem.
David Collins

Win10 64bit Intel i7 6700 3.40 Ghz, 32 Gb RAM, GeForce RTX 3070
AC 27.0 (4001 INT FULL)
Dwight
Newcomer
Oh.
Never mind.
Dwight Atkinson
Andy Thomson
Advisor
Has anyone tried the cyclorama built right into the lightworks archives?? Just noticed them there yesterday, and wondered how they called images...
Andy Thomson, M.Arch, OAA, MRAIC
Director
Thomson Architecture, Inc.
Instructor/Lecturer, Toronto Metropolitan University Faculty of Engineering & Architectural Science
AC26/iMacPro/MPB Silicon M2Pro
Dwight
Newcomer
Scenery elements cannot be used in Archicad.
Yet another thing waiting for a future implementation.
Dwight Atkinson