Category : shader

here is my code: modify from qt example:ExamplesQt-5.14.2quickscenegraphopenglunderqml void SquircleRenderer::init() { unsigned char* data = (unsigned char*)malloc(1200*4); for(int i=0;i<600;i++) { data[i*4] = 0; data[i*4+1] = 255; data[i*4+2] = 0; data[i*4+3] = 255; } for(int i=600;i<1200;i++) { data[i*4] = 0; data[i*4+1] = 0; data[i*4+2] = 255; data[i*4+3] = 255; } if (!m_program) { QSGRendererInterface *rif = ..

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I’m trying to draw a Sphere with basic shaders. But I’m unable to get complete sphere drawn. Sphere Calculations const float pi = 3.1414927f; GLint layers = 100; GLint circumferenceTiles = 100; std::vector<float> va; std::vector<int> ia; // create the vertex attributes va.reserve((layers + 1)* (circumferenceTiles + 1) * 5); // 5 floats: x, y, z, ..

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So I am fully aware of the previous StackOverflow posts on this, but I tried all their solutions, and I am completely lost right now. So my issue begins with my shader, specifically the Vertex Shader not being linked, I am currently following the LearnOpenGL guide for the code. ERROR::SHADER::FILE_NOT_SUCCESFULLY_READ ERROR::PROGRAM_LINKING_ERROR of type: PROGRAM Vertex ..

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unsigned int histogram[256]={0}; for(int i=0;i<width*height;i++) //to iterate over pixels ++histogram[image[i]]; const float cutoffpercentage = 0.05; //To cut off lower and upper values unsigned char lowerbound,upperbound; unsigned int histAccu =0; //pixel entries < 5% =lower bound const unsigned int lowerpercentile = cutoffpercentage * width*height; const unsigned int upperpercentile = (1-cutoffpercentage)*width*height; for(int h =0;h <256;h++){ histAccu += ..

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