Material color Vectorial Hatch Texture.

[Anonymous]

Objective: Change the color of siding material.

Q How is this done?
Q Does the texture image override the "Exposure to Light" and "Vectorial Hatching" settings?

I duplicated a siding material, changed the color but the new color does not come through.

The attached Pic is the original material. I want to change the color, keep the texture.

Thanks Greg.

[TomWaltz]

Anchor1 wrote:
Objective: Change the color of siding material.

Q How is this done?

If it's a bitmap, you have to edit the bitmap in order to change the color.

Q Does the texture image override the "Exposure to Light" and "Vectorial Hatching" settings?.

Yep. The Vectorial Hatching only applies in sections and elevations.

As far as I can tell, the exposure to light only has a minimal effect, and even then on a solid color material, not a bitmap texture.

[Anonymous]

Tom,

Thanks for the quick answer.
I shall research editing the bitmap.

Thanks Greg.

[Dwight]

You have asked a complex question.

Archicad models are rendered in several ways, so when you "change the color" of a surface, you must work comprehensively.

The drafting views are easiest because they derive their color from the color set in Archicad's Internal Engine settings. A vector fill overlaid can be viewed in analytical section/elevation views or as Internal rendered 3D views.

Should an underlying texture map be present as a surface in the Internal Engine material definition, it CAN be seen in the OpenGL rendering, too.

I assume that your problem is in the LightWorks Rendering. you've probably changed the material color in the internal engine dialog and not transferred that info to LightWorks.

But in LightWorks, a facility exists to change the color tint of any bitmap/texturemap.

For my example, I'm posting the dialog from an Archicad 11 material that uses an alpha channel image to create the siding shadow illusion. In this case, the image is used only as a depth indicator and the color of the material is determined with the LightWorks Color Shader "plain."

So:

In your case, Use your siding texturemap in the LightWorks material definition by placing the image in both:
Color Class shader "Wrapped Filtered Image" AND
Displacement Class Shader "Wrapped Bump Map."

You will notice that in the "Wrapped Filtered Image" parameters a "Color" parameter appears. Use this setting to change the color of your siding.

[Anonymous]

Dwight wrote:
You will notice that in the "Wrapped Filtered Image" parameters a "Color" parameter appears. Use this setting to change the color of your siding.

I was not aware of that, thought I had to change the colour of the bitmap.

NICE!

[Dwight]

This is an emergency solution to be sure, but you can successfully make subtle tinting changes in materials to coordinate illustration color schemes.

I did mention this when i was in Auckland, but back then the utility of this LightWorks feature wasn't so clear. I make more of it in recent seminars.


BTW: To Forum members planning an upgrade to Archicad 11, you should know that there are significant changes to the material descriptions that make the Shaders more powerful since they can now match most color shader patterns with a corresponding displacement shader pattern.

I'll be covering this aspect in the ArchiCAD 11 Supplement to my book "LightWorks in Archicad."