opengl

问题 I decided to try using OpenGL VBO in Python to improve FPS. I found code, that worked perfectly fine in Linux OS (Ubuntu), but when I tried launching in Windows OS, the code resulted in a message: "GLUT Display callback with (),{} failed: returning None module 'numpy' has no attribute 'float128'" So, I can't run the code specifically on Windows, but because I want to create a cross-platform application, I really need to solve this. I've done a lot of research and only found that numpy

问题 What is the difference between glDrawBuffer(GL_NONE) and glColorMask(GL_FALSE,GL_FALSE,GL_FALSE,GL_FALSE) Are both just another way of discarding any draws to color buffers? or there are some differences? 回答1: First and foremost, glDrawBuffer (...) applies to the current framebuffer only, it is a per-FBO state. glColorMask (...) , on the other hand, is a global state that masks writes from per-fragment operations to all logical framebuffers. Another problem with glColorMask (...) is that it

问题 I often use a struct to encapsulate a piece of graphics data, like colors/pixels. Provided they use the expected data type, can I pass arrays of these to OpenGL, or does this violate strict aliasing rules? For example: typedef struct Color { uint8_t v[4]; } Color; Color colors[200]; for (int i = 0; i < 200; i++) { /* populate color data */ } glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, colors); Versus the less abstracted version: uint8_t colors[200 * 4]; for

问题 I often use a struct to encapsulate a piece of graphics data, like colors/pixels. Provided they use the expected data type, can I pass arrays of these to OpenGL, or does this violate strict aliasing rules? For example: typedef struct Color { uint8_t v[4]; } Color; Color colors[200]; for (int i = 0; i < 200; i++) { /* populate color data */ } glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, colors); Versus the less abstracted version: uint8_t colors[200 * 4]; for

问题 This question already has answers here : What is an undefined reference/unresolved external symbol error and how do I fix it? (34 answers) Closed 5 years ago . I have this error on Ubuntu Eclipse that doesn't go away: Invoking: GCC C++ Linker g++ -L/usr/lib/i386-linux-gnu -o "GLUT" ./src/GLUT.o -lglut -lGLU /usr/bin/ld: ./src/GLUT.o: undefined reference to symbol 'glEnable' //usr/lib/i386-linux-gnu/mesa/libGL.so.1: error adding symbols: DSO missing from command line collect2: error: ld

问题 I wrote a code that creates a window and draws a shape into it: #include<glew.h> #include<iostream> #include<GL\freeglut.h> #include<Windows.h> #include<stdlib.h> #include<math.h> #pragma once void Render_All() { glClear(GL_COLOR_BUFFER_BIT); glBegin(GL_POLYGON); glColor3f(1, 0, 0); glVertex2f(0.5, 0.5); glColor3f(1, 0, 0); glVertex2f(0.5, -0.5); glColor3f(1, 0, 0); glVertex2f(-0.5, -0.5); glColor3f(1, 0, 0); glVertex2f(-0.5, 0.5); glEnd(); glFlush(); } int main(int argc, char** argv) {

问题 I wrote a code that creates a window and draws a shape into it: #include<glew.h> #include<iostream> #include<GL\freeglut.h> #include<Windows.h> #include<stdlib.h> #include<math.h> #pragma once void Render_All() { glClear(GL_COLOR_BUFFER_BIT); glBegin(GL_POLYGON); glColor3f(1, 0, 0); glVertex2f(0.5, 0.5); glColor3f(1, 0, 0); glVertex2f(0.5, -0.5); glColor3f(1, 0, 0); glVertex2f(-0.5, -0.5); glColor3f(1, 0, 0); glVertex2f(-0.5, 0.5); glEnd(); glFlush(); } int main(int argc, char** argv) {

问题 I have configured ssl certificate, if I visit https://<domain>.com , I see that my certificate is configured successfully but when I try to check certificate by following command openssl s_client -connect <domain>.com:443 | openssl x509 -noout -subject -issuer i am getting Kubernetes Ingress Controller Fake Certificate My ingres config is : annotations: nginx.ingress.kubernetes.io/ssl-redirect: 'true' nginx.ingress.kubernetes.io/from-to-www-redirect: 'true' name: nginx-echo spec: tls: - hosts

问题 I have configured ssl certificate, if I visit https://<domain>.com , I see that my certificate is configured successfully but when I try to check certificate by following command openssl s_client -connect <domain>.com:443 | openssl x509 -noout -subject -issuer i am getting Kubernetes Ingress Controller Fake Certificate My ingres config is : annotations: nginx.ingress.kubernetes.io/ssl-redirect: 'true' nginx.ingress.kubernetes.io/from-to-www-redirect: 'true' name: nginx-echo spec: tls: - hosts

问题 I am currently having issues with trying to render two textures onto two totally separate objects through a single vertex, and fragment shader. The issue seems to lie in trying to index, and bind the two textures onto their own objects. In trying to index and bind the textures, the smaller index will always appear onto both objects. Can someone help me, or at least push me into the right direction? here is my code for the main class, the renderer, and the fragment shader. (feel free to