vao

light shows but the cube does not appear

本小妞迷上赌 提交于 2021-02-17 03:16:45
问题 I am trying to use lighting on a cube but I don't understand where am going wrong. I can be able to view the light source but the rest of the screen appears black so I don't understand why the cube is disappearing. Here is the code: /*Header Inclusions*/ #include <iostream> #include <GL/Glew.h> #include <GL/freeglut.h> // GLM Math inclusions #include <glm/glm.hpp> #include <glm/gtc/matrix_transform.hpp> #include<glm/gtc/type_ptr.hpp> using namespace std; // Uses the standard namespace #define

light shows but the cube does not appear

怎甘沉沦 提交于 2021-02-17 03:16:19
问题 I am trying to use lighting on a cube but I don't understand where am going wrong. I can be able to view the light source but the rest of the screen appears black so I don't understand why the cube is disappearing. Here is the code: /*Header Inclusions*/ #include <iostream> #include <GL/Glew.h> #include <GL/freeglut.h> // GLM Math inclusions #include <glm/glm.hpp> #include <glm/gtc/matrix_transform.hpp> #include<glm/gtc/type_ptr.hpp> using namespace std; // Uses the standard namespace #define

GL_TRIANGLES works but GL_QUADS displays nothing

…衆ロ難τιáo~ 提交于 2021-01-29 15:55:55
问题 So I'm swapping from one program to another, and I can't figure out why but GL_QUADS will no longer display with the same code. To try and figure out why old code was not working, I made this new, simple code and it STILL does not work. The setup: vector <vec3f> squarepoints; vec3f temper(-0.5f, 0.5f, 0.5f); squarepoints.push_back(temper); temper.x += 1.0f; squarepoints.push_back(temper); temper.y -= 1.0f; squarepoints.push_back(temper); temper.x -= 1.0f; squarepoints.push_back(temper);

Render one VAO containing two VBOs

巧了我就是萌 提交于 2020-06-16 05:15:12
问题 I'm trying to draw two triangles in a window in OpenGL 3.3. I'm using the GLFW library for the windowing system. From what I understand, I should have two VBOs (one for each triangle) and one VAO containing these two VBOs. That's what I did. However, I can't figure out what calls I should make to render these two VBOs. Indeed, whatever I do, only the first VBO (first triangle) gets drawn . The second one never shows up. int main() { GLFWwindow *window = setupWindow(); GLfloat

Render one VAO containing two VBOs

有些话、适合烂在心里 提交于 2020-06-16 05:15:08
问题 I'm trying to draw two triangles in a window in OpenGL 3.3. I'm using the GLFW library for the windowing system. From what I understand, I should have two VBOs (one for each triangle) and one VAO containing these two VBOs. That's what I did. However, I can't figure out what calls I should make to render these two VBOs. Indeed, whatever I do, only the first VBO (first triangle) gets drawn . The second one never shows up. int main() { GLFWwindow *window = setupWindow(); GLfloat