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Only signal camera update when something actually changed

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This commit is contained in:
Sascha Willems 2024-01-13 19:14:30 +01:00
parent 67820604b8
commit f6abda6cca
1 changed files with 15 additions and 3 deletions
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16
base/camera.hpp
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@ -1,7 +1,7 @@
/* /*
* Basic camera class * Basic camera class
* *
* Copyright (C) 2016 by Sascha Willems - www.saschawillems.de * Copyright (C) 2016-2023 by Sascha Willems - www.saschawillems.de
* *
* This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT) * This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
*/ */
@ -20,6 +20,8 @@ private:
void updateViewMatrix() void updateViewMatrix()
{ {
glm::mat4 currentMatrix = matrices.view;
glm::mat4 rotM = glm::mat4(1.0f); glm::mat4 rotM = glm::mat4(1.0f);
glm::mat4 transM; glm::mat4 transM;
@ -44,7 +46,9 @@ private:
viewPos = glm::vec4(position, 0.0f) * glm::vec4(-1.0f, 1.0f, -1.0f, 1.0f); viewPos = glm::vec4(position, 0.0f) * glm::vec4(-1.0f, 1.0f, -1.0f, 1.0f);
if (matrices.view != currentMatrix) {
updated = true; updated = true;
}
}; };
public: public:
enum CameraType { lookat, firstperson }; enum CameraType { lookat, firstperson };
@ -57,7 +61,7 @@ public:
float rotationSpeed = 1.0f; float rotationSpeed = 1.0f;
float movementSpeed = 1.0f; float movementSpeed = 1.0f;
bool updated = false; bool updated = true;
bool flipY = false; bool flipY = false;
struct struct
@ -89,6 +93,7 @@ public:
void setPerspective(float fov, float aspect, float znear, float zfar) void setPerspective(float fov, float aspect, float znear, float zfar)
{ {
glm::mat4 currentMatrix = matrices.perspective;
this->fov = fov; this->fov = fov;
this->znear = znear; this->znear = znear;
this->zfar = zfar; this->zfar = zfar;
@ -96,14 +101,21 @@ public:
if (flipY) { if (flipY) {
matrices.perspective[1][1] *= -1.0f; matrices.perspective[1][1] *= -1.0f;
} }
if (matrices.view != currentMatrix) {
updated = true;
}
}; };
void updateAspectRatio(float aspect) void updateAspectRatio(float aspect)
{ {
glm::mat4 currentMatrix = matrices.perspective;
matrices.perspective = glm::perspective(glm::radians(fov), aspect, znear, zfar); matrices.perspective = glm::perspective(glm::radians(fov), aspect, znear, zfar);
if (flipY) { if (flipY) {
matrices.perspective[1][1] *= -1.0f; matrices.perspective[1][1] *= -1.0f;
} }
if (matrices.view != currentMatrix) {
updated = true;
}
} }
void setPosition(glm::vec3 position) void setPosition(glm::vec3 position)