a computer program that runs on graphics hardware and provides a high degree of control over how scenes are rendered

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-3
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3answers
155 views

Using a basic shader in libGDX

Looking at https://github.com/libgdx/libgdx/wiki/Shaders, I have decided to try these shaders: String vertexShader = "attribute vec4 a_position;\n"+ "uniform mat4 ...
1
vote
2answers
142 views

Replace each white spot of image to radial gradient

Recently, I read an article about a sun shader (XNA Sun Shader) and decided to implement it using OpenGL ES 2.0, but I encountered a problem with the shader: I have two textures, one of them is the ...
0
votes
2answers
301 views

translate-scroll repeated 2d texture using opengl shader

I managed to implement an infinite 2d texture scrolling using the following shader. btw I'm using cocos2d-x 2.2.1. The vertex shader: attribute vec4 a_position; attribute vec2 a_texCoord; #ifdef ...
0
votes
2answers
393 views

Using Appendbuffers in unity for terrain generation

Like many others I figured I would try and make the most of the monster processing power of the GPU but I'm having trouble getting the basics in place. CPU code: using UnityEngine; using ...
0
votes
1answer
138 views

Shader that draws just vertex points

The game I am developing is in unity and I want to make a shader which can be put on a mesh that only 'draws' color on each vertex point. I am not proficient with shaders, and out of all my searching ...
0
votes
1answer
62 views

Encoding Float to RG/RGBA and Blending

Encoding a float value inside a RG or RGBA texture is very interesting and useful but it is also become quite useless when you use blending as the result and the values might be altered because of ...
0
votes
1answer
138 views

Trying to implement Camera

I'm trying to implement a Camera class in order to walk and look on the world as follow: #ifndef _CAMERA_H_ #define _CAMERA_H_ #include <glm\glm.hpp> class Camera { public: Camera(); ...
0
votes
1answer
111 views

Having trouble getting shader to work with sprite batch in XNA #4

I found a neat "CRT screen" effect shader on the web, but I've never used shaders before and I can't seem to get it working properly. If I do the second sprite batch in my code here normally without ...
0
votes
1answer
192 views

Surface shader ignores lighting in vertexLit path

I want to use a surface shader in VertexLit(not Forward) rendering path. I caused a problem that the compiled shader completely ingnores lighting from the light sources on the scene. Here's the code: ...
0
votes
1answer
221 views

VertexColor shader is not working correctly in built application

I want to change the vertex colors of my mesh. The light sources must not affect the objects with this shader, its lighting must be determined only by its vertices colors, so I turned the Lighting ...
0
votes
1answer
307 views

When should I set a texture as a shader resource in order to read it?

I'm writing a Direct3D 11 HLSL shader with SharpDX. What I want to do is write the depth to a texture in one pass and read it in the next one. After declaring the texture, do I have to set the depth ...
0
votes
1answer
425 views

OpenGL Tessellation makes point

A little problem with my tessellation shader. I try to implement a simple tessellation shader but it only makes points. Here's my vertex shader : out vec4 ecPosition; out vec3 ecNormal; void ...
-1
votes
1answer
134 views

How to optimize my lighting shader?

I want to create a lighting effect on a gray-scaled world using cocos2d-x. What I've done is creating a layer which runs a shader program that receives light positions and radiuses as input and ...
-1
votes
1answer
142 views

Smooth Ramp to zonal harmonics

I have written in blitz3D some code to generate arbitrary 2D lighting lookup textures and I'm looking for a way to compress them. The idea is that they look rather smooth and low frequency, there must ...
-1
votes
1answer
365 views

Using Shader causes triangle to disappear

The following is my rendering code. Private Sub GameRender() GL.Clear(ClearBufferMask.ColorBufferBit + ClearBufferMask.DepthBufferBit) GL.ClearColor(Color.SkyBlue) ...
-1
votes
1answer
141 views

Shader applied to Texture is not showed in GLSLES

I'm trying to learn the basic of shaders following basic tutorials in Ogre. I use GLSL ES 2.0 #version 100 I think I have a basic concept problem. I'm trying to render a model + texture without make ...
-2
votes
1answer
104 views

Texture Stretching on VBO cube

I'm using JOGL and I'm trying to render a textured VBO cube with glDrawArrays. The cube renders, but the texture is stretched and stripy as seen in the picture above. It seams that changing my ...