Getting shaders channel?

[Helper]

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 16/03/2004 at 23:55, xxxxxxxx wrote:

User Information:
Cinema 4D Version:   8.503 
Platform:      Mac OSX  ; 
Language(s) :     C++  ;

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What's the correct way to determine the channel a shader is running in? All I found is a hack by Mikael, that seems to make a bit of an effort to get data which were easy to get in earlier SDK versions:

Mikaels Code

Is that still the "right" was doing it? Or shouldn't it be done at all anyway?

Thanks!

Kabe

[Helper]

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 18/03/2004 at 00:50, xxxxxxxx wrote:

Please see "Channel dependent effects" in the What's New section of the 8.503 SDK docs.

[Helper]

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 18/03/2004 at 12:19, xxxxxxxx wrote:

Well, first thanks for the pointer, I really overlooked this one!

However, I can't get it to work. It compiles, but in...

if (GET_TEX_CHANNEL(sd->vd->tex->texflag) == CHANNEL_LUMINANCE) {  

GET_TEX_CHANNEL(sd->vd->tex->texflag) always evaluates to 0 (==CHANNEL_COLOR), no matter in which channel the shader is used...

So, where is the pitfall here?

Thanks!

Kabe

[Helper]

THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

On 18/03/2004 at 21:26, xxxxxxxx wrote:

Found the solution to this one... Don't use "==", but "&"...

BTW: The documentation of ChannelData->texflag in the SDK is a tad short. Seems that there's only the old variant listed.

Kabe