13
votes
7answers
2k views

What does the term “channel” mean when used in regards to computer graphics?

I was studying terminology for computer graphics, and this statement came up that confused me. The image can have alpha channels for transparency. I tried searching for the meaning of the term ...
0
votes
1answer
152 views

Creating a gradient for a texture - Why is the color becoming dark on one side?

Updated While debugging I looked at the lerp and it was calculating into a negative number at the start. So I added in checks for to low or high a value, and that seems to have fixed it. I'll answer ...
0
votes
1answer
127 views

How do you calculate a gradient value within multiple colors (gradient stops)

In WPF/Silverlight XAML you can have a brush with multiple gradient stops at different points along the color line. I was able to replicate this behavior with two colors, a single color lerp, from ...
1
vote
4answers
238 views

Changing color of a moving image without lowering the fps

I just added an option to my game that makes it so that all the enemies will have a random color for their clothes instead of the regular blue. I use this code to draw rectangles over the shirt of the ...
1
vote
3answers
883 views

How do you blend multiple colors in HSV (polar) color-space?

In RGB color space, you can do a weighted multiple-color blend by just doing: Start with R = G = B = 0. Then we perform a blend at index i using a set of colors C, and a set of normalized weights w ...
7
votes
3answers
7k views

How can I include vertex color information in .OBJ files?

The .obj files I export are missing data for vertex colors. Is there a way to include color information in the .obj file? If not, what are the alternatives?