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Results tagged with opengl
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user 50140
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.
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convert deprecated opengl function to modern opengl (3.3) [closed]
Can you show me the correct form to convert it to modern opengl? … IMPORTANT DISCOVERING:
recently, i have discovered that the problem occurs when the Opengl Context is 3.2+ . if I switch to the 3.1 Version of the opengl context , it works perfectly with my modified …
- 63
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convert deprecated opengl function to modern opengl (3.3)
The problem was the initialization of vbo without a vao (as say SurvivalMachine), i fixed it and now the model is rendering correctly.
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2
votes
1
answer
349
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Directional Light shadow mapping error - opengl
i need some help with shadow mapping (directional light) in opengl 3.3 and GLSL. …
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Accepted
Directional Light shadow mapping error - opengl
I found the solution: in the fragment shader in the shadow function it should be:
if(fSub<vShadowSmooth.z){
visibility -= 0.1*(1.0-fSub);
}
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0
answers
199
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Frustum culling - error evaluating a point in the plane of the frustum
I am trying to implement the following code:
http://www.lighthouse3d.com/tutorials/view-frustum-culling/geometric-approach-implementation/
I need to use frustum culling in my graphics engine.
my fu …
- 63
4
votes
3
answers
933
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Can't find the solution to the "shadow acne" problem
This is how it looks now:
This is the code that generate the shadow matrix an shaders source:
void shadow::calculateShadowMatrixFromLightPointOfView(vector3f lightPosition, vector3f lightDirecti …
- 63
0
votes
1
answer
327
views
Strange shadow behavior when light direction is parallel to a plane
i have a strange problem with shadow acne. It occurs when the light direction is parallel to a plane. Here is my code and a few images of the problem:
//this calculates the shadow matrix
//#### …
- 63