VEX function to see if a file is readable

[Sam Hodge]

Hi shady people,

In 3delight, I would use the following function:

http://www.3delight.com/en/uploads/docs/3delight/3delight_35.html#SEC137

color C;
if( textureinfo(texturename, "exists", 0) )
    C = texture(texturename);
else
    C = errorcolor;

But Alas I am now using Mantra and I cant do this.

Which part of the friendly manual did I miss reading?

Sam

[symek]

Which part of the friendly manual did I miss reading?

This one

http://www.sidefx.com/docs/houdini12.0/vex/functions/teximport

[Sam Hodge]

This one

http://www.sidefx.com/docs/houdini12.0/vex/functions/teximport

Thank you very much, funny thing is I have read that page before but I was looking for the incorrect term.

Sam

[symek]

I'm grad I could help. Note, that texture() emits "warning" color by default when it can't open the file. It's a bright ping as you may have noticed. It can also be overwritten with HOUDINI_DEFAULT_TEXTURE_COLOR variable:

~$ hconfig -h HOUDINI_DEFAULT_TEXTURE_COLOR

Specifies the default color to use when texture maps cannot be found while rendering. This can be specified as a single string

containing four floating point numbers representing the red, green, blue and alpha components of the default color. For example:

setenv HOUDINI_DEFAULT_TEXTURE_COLOR "0 0 0 0"

to set it to zero black.

cheers,

skk.