25 lines
492 B
C++
25 lines
492 B
C++
#pragma once
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#include <glm/glm.hpp>
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#include <glm/gtc/quaternion.hpp>
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using glm::sin;
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using glm::cos;
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struct Camera {
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/* using the math convention of theta = azimuthal */
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float theta = glm::radians(90.0f);
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float phi = 0.0f;
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/* r always = 1 */
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glm::vec3 pos = glm::vec3(0.0f);
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inline glm::vec3 dir() {
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return glm::vec3(sin(theta) * cos(phi), cos(theta), sin(theta) * sin(phi));
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}
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inline glm::mat4 view() {
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return glm::lookAt(pos, pos+dir(), glm::vec3(0.0, 1.0, 0.0));
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}
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}; |