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Results tagged with opengl
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user 35431
OpenGL is a graphics standard and API which targets the desktop and workstation markets. It is designed to be easy to accelerate with dedicated computer hardware, and hence most implementations give greatly improved performance over traditional software rendering. Currently, OpenGL is used for applications like CAD software and computer games. It is also cross-platform. The OpenGL standard is controlled by the Khronos group, which also controls OpenGL ES.
1
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3
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3k
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Rendering order
In this thread Rendering a model with transparent or translucent uv map applied doesn't work , I asked about what was wrong with my model that the transparency wasn't working. I've got an answer that …
- 301
1
vote
1
answer
1k
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Sprite rotation
I'm using OpenGL and people suggest using glRotate for sprite rotation, but I find that strange. …
- 301
2
votes
1
answer
2k
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How does the fragment shader get data from the vertex shader?
How can any interactions between these two shaders work? I mean the vertex shader sends a vertex's color to the fragment shader, but that's only one fragment, what about all the other ones between the …
- 301
-3
votes
1
answer
395
views
GLSL does weird things to my view matrix [closed]
uniform mat4 model;
uniform mat4 view;
varying vec4 vColor;
void main(){
gl_TexCoord[0] = gl_MultiTexCoord0;
gl_Position = view * model * gl_Vertex;
vColor = gl_Color;
if(view * mo …
- 301
6
votes
2
answers
5k
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When is the Z coordinate normalized in GLSL?
I thought that whenever you transform an object to world space, then view space and finally screen space, the last matrix you apply(the projection matrix) normalizes the z values between 0 and 1.
How …
- 301
0
votes
0
answers
289
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Rendering a model with transparent or translucent uv map applied doesn't work
This is the result with a translucent green texture:
I did transparency with OpenGL when I did 2D games and everything worked nicely because of these two lines:
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA …
- 301
3
votes
1
answer
6k
views
What is the difference between shader uniforms and attributes in OpenGL?
I don't fully understand the differences between uniforms and attributes. To be honest, I probably haven't even used attributes.
Can uniforms change for each vertex? I mean to calculate the vertex's …
- 301