Questions tagged [color]

Color is the visual perception of light by humans into named categories, commonly "red," "green," and "blue."

19 questions with no upvoted or accepted answers
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288 views

Weird libGDX BitmapFont Color Change (And Alpha) Bug

I want to change the color of my libGDX BitmapFont, but it can't change it. The font is generated with Hiero v5 (Lastest as I Know) but the color of the font doesn't change. Here is the example code, ...
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0answers
148 views

Bitmap font engine: When is color modulation not supported?

I am developing a bitmap font renderer for a 2D game using SDL 2. (If it matters, I'm using Debian 8 "jessie".) I had planned on storing the glyphs as a grayscale image, translating gray levels to ...
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0answers
627 views

Linear color workflow with render to texture - Banding in alpha channel?

In OpenGL, I am using GL_SRGB8_ALPHA8 for the OpenGL internal texture format for my textures and render targets. This eliminated some banding I was seeing in dark ...
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2k views

Easy way to set face colors with indexed VBOs?

I'm loading OBJs, which lend themselves well to setting up as indexed VBOs, since each vertex is only defined once and then a face definition will reference the same vertex more than once when they ...
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0answers
133 views

HDR mode in windows makes build version of Unity game look washed out

I've got a 2D Unity game I've been working on. The development computer is hooked up to a TV that supports HDR. If I turn on the "Play HDR Games and Apps" switch in windows then run the build version ...
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40 views

How to apply a visual filter to what I am drawing?

I'm looking to apply a sepia filter to what I'm rendering. Perhaps we could just apply the filter to the view or pass it to the draw method to draw everything with the filter (I'm using one draw ...
1
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0answers
766 views

Shadow & sorting issues with vertex colored PBR Shader Graph

I'm working on a custom shader using Unity 2018's new shader graph feature. Previously, I was using this shader, which worked great for awhile, but it ended up constantly breaking for seemingly no ...
1
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0answers
74 views

How to color individual parts of curve in unity, real time?

So I have a mesh curve that I've imported from Blender. What I want to do is to place individual points on the curve (at fixed distance) and then based on a specific number, color them. Let's say for ...
1
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1answer
474 views

How do I make a 2D sprite flash green when tapped?

I have a sprite that is based on an image of a gray circle. When the user touches the sprite, I want the sprite to flash green, as in I want the circle to appear to turn green for 0.2 seconds. I tried ...
0
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9 views

Substance Painter: Fix color addition

Substance Painter appears to add colors together wrongly when selecting "Normal Blending Mode" The right side is what photoshop does correctly, meaning R+G+B values in the border region ...
0
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1answer
31 views

How do I make a rainbow hue shift over time on text?

What I'm trying to do is make a Text object have an animation that allows for the hue of the color to go all the way up and loop back around, so it creates a cool rainbow thing. I've looked on google ...
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43 views

How do I fix this unintentional chromatic aberration on a lightmap?

Some strange rainbow halos (front and left) appear after computation of a lightmap for direct light. The formula is dot * dot2 / ( dist * dist ) * dl->intensity ...
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297 views

How to randomly change the color of a Shader Graph Material for only a specified GameObject, with C# script?

I'm working on a game, in Unity3D, where the player picks up trash from Trash cans, and dumps the trash from the Trash cans into a Trash Truck. The world of the game itself is randomly generated, with ...
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12 views

How to create opacity mask from colored bitmap?

For the image (bitmap) below, if I do: Create a spite with the image in unreal engine. Create a opacity mask on the spite. Use this image, choose a specific color, such as blue, make its ...
0
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1answer
680 views

How to use a .cube LUT file with Color Lookup?

I have used "Image 2 LUT" to create a LUT for Unity from a certain movie. However, currently "Image 2 LUT" only outputs ".cube" files. For HDRP, this is great, but for ...
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0answers
39 views

Changing alpha of single pixel value?

I'm trying to change the alpha values of a grayscale texture based on some conditions. Essentially if the color value is within some min and max threshold, set the alpha to 0.8, and if it is not ...
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0answers
480 views

GetPixel() doesn't return properly the values

So I'm trying to use GetPixel() function to get which colors is the texture as a value of x and y. So far it works well but it only return 1 color, being unable to get the rest of the colors of the ...
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33 views

How to do Colored Lights in CIE XYZ/LUV-like Space?

I've a 2d background, some sprites, blitted onto it. And over all that in the final pass I draw colored lights, to make projectiles look cooler. Basically I apply a classic lightmap, which is colored ...
-1
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1answer
746 views

XNA changing color alpha

I know I can take a color and multiply it by a float to reduce its alpha like that: Color color = Color.Green * 0.15f; But how do I return the color's alpha to ...