Illuminated, transparent, grille textures etc.

[Double Doppler 10]

Hi, I would like to know how to make some textures give off light (or atleast stay illuminated) at night (like the car light textures). And also I would like to know how to make transparent backgrounds (for creating car grilles, lights, etc.). I am new to texturing and I would appreciate it someone can help me out.

[el76 0]

ambient[] = {1,1,1,1};
diffuse[] = {1,1,1,1};
forcedDiffuse[] = {0,0,0,0};
emmisive[] = {0.5,0.5,0,0.2};
specular[] = {0,0,0,0};
specularPower = 0;
PixelShaderID = "Normal";
VertexShaderID = "Basic";

1. create a rvmat-File

2. copy the above code into it

3. assign it in O2 to the face

This should emmit yellow light at night.

colour is set in this line: emmisive[] = {0.5,0.5,0,0.2};

can´t test it now, but i think it should work.

[Double Doppler 10]

Thanks, but not necessarily what I had in mind. What I need to know is how to create light textures (Like the car light flares), and to make an area of the texture see-through, like a circular light on a box shaped face and to be able to use the texture with this SetObjectTexture.

[el76 0]

- transparency is set in the alpha channel of the image.

- the glow effect is done by the material file in ca\Data\data\default_flash_2pass.rvmat

take a look at the sample models and you will see how it is done

[max power 21]

the emmissive rvmat characteristic makes the texture 'self lit'. It makes it not shade in the darkness. This is a much different thing than having the thing light other objects, in which case you would need to attach a light source to the object.

The alpha channel of your image tells the computer how opaque a surface is, white being completely opaque and black being completely transparent. In order for the engine to make use of the alpha channel properly, though, you must save your texture as a _ca file. i.e transparentThing_ca.tga

[Double Doppler 10]

Thanks.

Edited March 4, 2012 by Double Doppler