Adam
46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
#include "AABB.h"
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AABB::AABB(glm::vec3 _volumeVector, glm::vec3 _origin)
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{
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volumeVector = _volumeVector;
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origin = _origin;
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CreateBB();
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}
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void AABB::CreateBB()
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{
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// Cube 1x1x1, centered on origin
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GLfloat vertices[] = {
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origin.x - 0.5, origin.y - 0.5, origin.z - 0.5, 1.0,
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origin.x + 0.5, origin.y - 0.5, origin.z - 0.5, 1.0,
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origin.x + 0.5, origin.y + 0.5, origin.z - 0.5, 1.0,
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origin.x - 0.5, origin.y + 0.5, origin.z - 0.5, 1.0,
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origin.x - 0.5, origin.y - 0.5, origin.z + 0.5, 1.0,
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origin.x + 0.5, origin.y - 0.5, origin.z + 0.5, 1.0,
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origin.x + 0.5, origin.y + 0.5, origin.z + 0.5, 1.0,
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origin.x - 0.5, origin.y + 0.5, origin.z + 0.5, 1.0,
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};
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GLuint vbo_vertices;
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glGenBuffers(1, &vbo_vertices);
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glBindBuffer(GL_ARRAY_BUFFER, vbo_vertices);
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glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
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glBindBuffer(GL_ARRAY_BUFFER, 0);
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GLushort elements[] = {
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0, 1, 2, 3,
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4, 5, 6, 7,
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0, 4, 1, 5,
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2, 6, 3, 7
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};
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GLuint ibo_elements;
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glGenBuffers(1, &ibo_elements);
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ibo_elements);
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glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(elements), elements, GL_STATIC_DRAW);
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
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glm::vec3 size = glm::vec3(glm::abs(origin.x-volumeVector.x), glm::abs(origin.y-volumeVector.y), glm::abs(origin.z-volumeVector.z));
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glm::mat4 transform = glm::translate(glm::mat4(1), origin) * glm::scale(glm::mat4(1), size);
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for (int i = 0; i < )
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} |