a computer program that runs on graphics hardware and provides a high degree of control over how scenes are rendered
4
votes
2answers
65 views
Geometry shader for multiple primitives
How can I create a geometry shader that can handle multiple primitives? For example when creating a geometry shader for triangles, I define a layout like so:
layout(triangles) in;
...
1
vote
1answer
99 views
2d game view camera zoom, rotation & offset using 'Filter' / 'Shader' processing?
I wish to add the ability to zoom-in, zoom-out, rotate and move the view in a top-down view over a collection of points and lines in a large 2d map. I split the map into a grid so I only need to ...
4
votes
1answer
131 views
Custom shadow mapping in Unity 3D Free Edition
Since real time hard and soft shadows are Unity 3D Pro only features I thought I will learn Cg programming and create my own shadow mapping shader. But after some digging I found that the shadow ...
1
vote
2answers
43 views
Depth buffer values reset on change shader?
I have 2 different shaders, and when I change the shader (glUseProgram), it seems that the depth information is lost, because everything drawn with the 2nd shader appears completely on top of anything ...
6
votes
1answer
170 views
Huge 2d pixelized world
I would like to make a game field in a indie-strategic 2d game to be some a-like this popular picture.
So every "pixel"(blocks) changes it's color slowly, sometimes a bright color wave happens, etc, ...
10
votes
2answers
703 views
Why are trees shining in background?
Currently I am creating a forest scene in the dark, and the trees are shining far away, but when I get close they are fine. I have the shaders set to "Nature/Tree Soft Occlusion [bark/leaves]", but ...
1
vote
0answers
74 views
Outline Shader Effect for Orthogonal Geometry in XNA
I just recently started learning the art of shading, but I can't give an outline width to 2D, concave geometry when restrained to a single vertex/pixel shader technique (thanks to XNA).
the shape I ...
2
votes
2answers
161 views
Learning OpenGL GLSL - VAO buffer problems?
I've just started digging through OpenGL and GLSL, and now stumbled on something I can't get my head around this one!? I've stepped back to loading a simple cube and using a simple shader on it, but ...
0
votes
1answer
65 views
Artifacts when draw particles with some alpha
I want to draw in my game some particles. But when I draw one particle above another particle, alpha channel from this above "clear" previous drawed particle.
I set in OpenGL blend in this way:
...
1
vote
1answer
170 views
What kind of shader is this?
Cube World uses a pretty good looking shader, I especially like the shading of the characters:
Is this soft shading? I'd like to achieve this effect in Unity 3D Free, but since the free version ...
1
vote
1answer
101 views
Unity custom shaders and z-fighting
I've just readed a chapter of Unity iOS Essential by Robert Wiebe.
It shows a solution for handling z-figthing problem occuring while rendering a street on a plane with the same y offset.
Basically ...
2
votes
3answers
198 views
Rain effect using DirectX 9 capabilities
Is it possible to achieve something similar to nVidia's rain demo using only shader model 3.0 capabilities? If yes, could you point out a few documents/web resources that are suitable candidates and ...
0
votes
1answer
128 views
How to convert Maya shaders and Renderman shaders to GLSL?
I know this 2 products but i have never used them for production, since I have a bunch of cool shaders i would like to use them under OpenGL with GLSL but i don't know where to start.
If it's not ...
2
votes
1answer
120 views
What are the factors that determine the default frequency of a shader call?
After i have been played for some days with various vertex and fragments shaders seems clear to me that this programs are called by the GPU at every and each rendering cycle, the problem is that I ...
12
votes
1answer
345 views
Should I distribute shaders in a compiled form or in plain text?
Having an application that uses shaders that have been wrote in GLSL, what is the best strategy for the distribution in the real world and for the desktop and mobile?
I'm aiming to distribute this in ...
