hi, i have been struggling with point sprites for a long time here are my vertex and fragment shaders
i set up the texture by loading it with SOIL. then i use glUniform1i to set the sampler2D variable to 1 and then i make the activetexture unit 1 by glActiveTexture(GL_TEXTURE1) and bind the image to it.Code :const char *fshader = "#version 430 core\n" "uniform sampler2D tex1;\n" "out vec4 color;\n" "void main(void)\n" "{\n" " color = texture2D(tex1, gl_PointCoord);\n" "}"; const char *vshader = "#version 430 core\n" "layout (location = 0) in vec4 vertices;\n" "void main(void)\n" "{\n" " gl_PointSize = 60;\n" " gl_Position = vertices;\n" "}";
heres my display function
thanks much in advanceCode :void display () { glClear (GL_COLOR_BUFFER_BIT); glEnable(GL_PROGRAM_POINT_SIZE); glBindVertexArray (vao); glDrawArrays (GL_POINTS, 0, 4); glDisable(GL_PROGRAM_POINT_SIZE); }![]()