I’ve got a live wallpaper out on the market which uses OpenGL to render some basic shapes and a flat plane. The simple lighting creates a gradient effect across the plane, which looks fine on most devices. The Samsung Galaxy S2 series seems to have some trouble rendering the gradient, though, as you can see … Read more
Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it’s on-topic for Game Development Stack Exchange. Closed 8 years ago. Improve this question I’m making a paint program using applets in Java, and I want to create some sort of color palette where the … Read more
This is a very short question. I want to implement ambient light in the color of daylight from the sun. What is the color value of sun light? Answer That depends. Our perceived color of the sun depends on a variety of factors — the color we observe is due primarily to the scattering of … Read more
I am trying to build a default color grading map into a 1024×32 RenderTarget. Here is my shader code: VertexShaderOutput VertexShaderFunction(VertexShaderInput input) { VertexShaderOutput output; output.Position = float4(input.Position,1); output.TexCoord = input.TexCoord; return output; } float4 PixelShaderFunction(float2 TexCoord : TEXCOORD0) : COLOR0 { float temp = TexCoord.r*1024; float4 result = (float4)0; result.a = 1; result.r = … Read more
I have made a color, decent, recursive, fast tile lighting system in my game. It does everything I need except one thing: different colors are not blended at all: Here is my color blend code: return (new Color( (byte)MathHelper.Clamp(color.R / factor, 0, 255), (byte)MathHelper.Clamp(color.G / factor, 0, 255), (byte)MathHelper.Clamp(color.B / factor, 0, 255))); As you … Read more
I’m trying to get an old-school Quake 1 look going in UE4. I am currently using this blueprint in order to get a retro style large pixel filter. In game (might need to zoom in to see the difference): The look I am going for now is a low color depth (8 bit etc) that … Read more
According to http://www.color-wheel-pro.com/color-meaning.html and many other western websites certain colours have meanings. To summarise the meaning of colours in the context of a typical RTS game: red = danger or enemy gold = wealth or high quality yellow = energy green = healing aqua = protection blue = power pink = romance white/grey = neutral … Read more
How would I go about determining the difference in cost between changing the render color of an object every frame vice changing the texture (same sheet, just changing the source rectangle) every frame? I ask because right now i’m changing the alpha every frame on about 300-400 objects, and i’m wondering if it isn’t cheaper … Read more
link on youtube at 1:38 – 1:42, purple things (I think this is particle system) that come off from the moon. Someone else had decompiled the game in the past, and the assets shows that the dark blue area around the moon (after purple things come off) is just background image. So my assumption is … Read more
I found this code buried under some rocks: var divAlpha = 0xff00/color.A; var r = (byte) (color.R*divAlpha >> 8); var g = (byte) (color.G*divAlpha >> 8); var b = (byte) (color.B*divAlpha >> 8); The fields on color are bytes, of course. My guess would be it’s avoiding using floating point operations to handle premultiplied alpha, … Read more
