[fixed] .x face color

strangeland · Post by **strangeland** » Fri Dec 09, 2005 6:37 pm

The direct x file loader reads the face color incorrectly:
In the file "CXFileReader.cpp":

bool CXFileReader::parseDataObjectMaterial(SXMaterial& material)
{
...
	// read RGBA

	findNextNoneWhiteSpaceNumber();
	material.FaceColor.a = readFloat();
	findNextNoneWhiteSpaceNumber();		
	material.FaceColor.r = readFloat();
	findNextNoneWhiteSpaceNumber();		
	material.FaceColor.g = readFloat();
	findNextNoneWhiteSpaceNumber();		
	material.FaceColor.b = readFloat();

reads the alpha value first, by the specification I believe this should be

Code: Select all

bool CXFileReader::parseDataObjectMaterial(SXMaterial& material)
{
...
	// read RGBA

	findNextNoneWhiteSpaceNumber();		
	material.FaceColor.r = readFloat();
	findNextNoneWhiteSpaceNumber();		
	material.FaceColor.g = readFloat();
	findNextNoneWhiteSpaceNumber();		
	material.FaceColor.b = readFloat();
	findNextNoneWhiteSpaceNumber();
	material.FaceColor.a = readFloat();

strangeland · Post by **strangeland** » Mon Dec 12, 2005 4:09 am

I confirmed this with the DirectX SDK docs available here. It would nice if this were corrected for the next release.

tip · Post by **tip** » Mon Dec 12, 2005 2:35 pm

hi,
i've the same problem... but i've corrected and re-compiled and it changes nothing. I wonder if the render uses the face color info??? if yes, is there a render flag for face colors or another trick?

gozargozarian · Post by **gozargozarian** » Thu Dec 15, 2005 8:49 pm

It would be nice to finally get objects to render to solid colors instead of having to texture map everything to get changes. Face colors are important and should be rendered by default.

jayvatar · Post by **jayvatar** » Fri Dec 01, 2006 10:15 pm

This must be the problem I was having as well... I was trying to load a .irr file which has a .x static mesh attached to it, at runtime the colors would not load using directx and then the colors would load when I rendered with the opengl driver....

http://irrlicht.sourceforge.net/phpBB2/ ... hp?t=17364

bitplane · Post by **bitplane** » Fri Dec 01, 2006 10:53 pm

I think I remember the workaround being to define some uv coordinates. I may be wrong though

Spintz · Post by **Spintz** » Sat Dec 02, 2006 4:53 pm

In order to support a different color for each face in a model, you would need a different material for each face of the model.

hybrid · Post by **hybrid** » Sat Dec 02, 2006 9:11 pm

I don't think that anyone wants to have a different color per face, but simply correct colors without textures. Will be checked in soon (face colors without textures).

Spintz · Post by **Spintz** » Sat Dec 09, 2006 1:35 pm

I'm thoroughly confused. Is face color the color of an individual triangle, or is it just the color of a material?

hybrid · Post by **hybrid** » Sat Dec 09, 2006 1:59 pm

It's the color of a triangle (or better the color of a vertex). When loading meshes I usually put the material color both to the material and the vertex. This allows for showing the color even without textures or light.