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| author | Dan Goodliffe <dan@randomdan.homeip.net> | 2022-12-11 14:52:09 +0000 |
|---|---|---|
| committer | Dan Goodliffe <dan.goodliffe@octal.co.uk> | 2022-12-12 09:21:54 +0000 |
| commit | c2abacf2e7d188aa0999a38dce259b0d8e76b982 (patch) | |
| tree | 91bed055ce71f3a848753eb8212807d710f71678 /gfx/gl | |
| parent | Cache view and viewProject matrices, update only on camera movement (diff) | |
| download | ilt-c2abacf2e7d188aa0999a38dce259b0d8e76b982.tar.bz2 ilt-c2abacf2e7d188aa0999a38dce259b0d8e76b982.tar.xz ilt-c2abacf2e7d188aa0999a38dce259b0d8e76b982.zip | |
Cache unView matrix for unprojecting mouse clicks, update only on camera movement
Diffstat (limited to 'gfx/gl')
| -rw-r--r-- | gfx/gl/camera.cpp | 4 | ||||
| -rw-r--r-- | gfx/gl/camera.h | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/gfx/gl/camera.cpp b/gfx/gl/camera.cpp index 994d8ab..72b5240 100644 --- a/gfx/gl/camera.cpp +++ b/gfx/gl/camera.cpp @@ -14,13 +14,13 @@ Ray Camera::unProject(const glm::vec2 & mouse) const { static constexpr const glm::vec4 screen {0, 0, 1, 1}; - return {position, - glm::normalize(glm::unProject(mouse ^ 1, glm::lookAt(::origin, forward, up), projection, screen))}; + return {position, glm::normalize(glm::unProject(mouse ^ 1, unView, projection, screen))}; } void Camera::updateView() { view = glm::lookAt(position, position + forward, up); + unView = glm::lookAt(::origin, forward, up); viewProjection = projection * view; } diff --git a/gfx/gl/camera.h b/gfx/gl/camera.h index 94eb8fc..bcc7469 100644 --- a/gfx/gl/camera.h +++ b/gfx/gl/camera.h @@ -60,6 +60,6 @@ private: float fov, aspect, near, far;
glm::mat4 projection;
- glm::mat4 view;
+ glm::mat4 view, unView;
glm::mat4 viewProjection;
};
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