The blending tag has no wiki summary.
2
votes
0answers
49 views
Laser Beam End Points Problems
I am building a game in XNA that features colored laser beams in 3D space.
The beams are defined as:
Segment start position
Segment end position
Line width
For rendering, I am using 3 quads:
...
0
votes
1answer
210 views
Incorrect colour blending when using a pixel shader with XNA
I'm using XNA 4.0 to create a 2D game and while implementing a layer tinting pixel shader I noticed that when the texture's alpha value is anything between 1 or 0 the end result is different than ...
2
votes
2answers
85 views
Replacing 4 additive sprite layers with a single shader. Just can't get it right
I'm using directx9 and have 4 textures I want to draw on top of each other. if I do this:
PDevice->SetRenderState(D3DRS_SRCBLEND,D3DBLEND_SRCALPHA);
...
2
votes
3answers
189 views
OpenGL additive blending not working as expected
I am trying to achieve additive blending with point sprites. When the sprites overlap, all I get is solid red, when I expect to get a smooth blend from red->yellow->white. My sprite texture has all ...
2
votes
1answer
120 views
What is this alpha blending result?
I'm having an exam soon and got a problem with one alpha blending exercise:
BlendState BS3 {
BlendEnable[0] = TRUE;
SrcBlend[0] = ONE;
SrcBlendAlpha[0] = ZERO;
...
2
votes
1answer
52 views
Independent blending with DXGI_FORMAT_R16G16_SINT
I'm implementing direct volume rendering engine with volume bricking, but I'm stuck with this problem:
For each volume brick I render to color render target [CRT] (for visualization) and to data ...
4
votes
2answers
131 views
blending with the foreground but not the background
I want to draw some very-semi-transparent objects on top of my scene and have them blend nicely with the other pixels in the scene, but not blend with the background; if I draw a semi-transparent ...
1
vote
0answers
55 views
Glowing Effect and Blending [duplicate]
I am using C++ and SDL and I am trying to get lines with a glowing effect as provided by the image of the game Defcon on the continental outlines.
How could I achieve this glow and blend of the ...
0
votes
1answer
75 views
How can I draw a small bitmap on a larger bitmap at a particular position? (Canvas / SurfaceView)
I'm building a game that requires additive blending of colours for certain bitmaps.
Say I have 4 different types object, there are maybe ten of each type on the screen with each type having a ...
1
vote
0answers
79 views
How to put OpenGL in a state for drawing blended, colored, nontextured polys?
Using OpenGL1.1 (sadly) I'm trying to draw a cube, which is colored and alpha blended. It is instead showing up as opaque black. Even without including alpha in the color it still shows up as opaque ...
4
votes
0answers
171 views
Premultiplied Alpha And Alpha Testing
I have a shader that is supposed to work with either alpha blending or alpha testing, but the color values being passed in are premultiplied alpha values.
Is there an easy/standard way to have it ...
5
votes
1answer
280 views
What are the rest of the blending functions used for?
In general, I know of five ways to make use of blending functions (these are for OpenGL, but replace glBlendFunc() with SetRenderState(D3DRS_SRCBLEND) and SetRenderState(D3DRS_DESTBLEND) for DirectX):
...
1
vote
1answer
64 views
Drawing sprites messes up my model in XNA4
I have a model which draws correctly in XNA4.
However if I try to add a background image (or any sprite), the rendering of my model is messed up. There are two problems with the rendering
model is ...
0
votes
1answer
37 views
How to linearly blend between multiple points, deviating from a default point?
I have a set of 3D points that I need to "blend" between. Lets say I have points [A,B,C] and I have the amount I want to blend each as [0.5, 0.2, 0.8], how can I blend between these points with the ...
1
vote
1answer
83 views
How to linearly “blend” between multiple 3D points?
I have a set of 3D points that I need to "blend" between. Lets say I have points [A,B,C] and I have the amount I want to blend each as [0.5, 0.2, 0.8], how can I blend between these points with the ...
