# HG changeset patch
# User Teemu Piippo <teemu.s.piippo@gmail.com>
# Date 1680991920 -10800
# Node ID 73b6c478378e0a9dcbf80f3ee9dc9ac00b719131
# Parent  ef90ed0a572075646885a9fed0dc1329aa9fd8fa
The renderer now centers on the grid origin, not the part origin

diff -r ef90ed0a5720 -r 73b6c478378e src/gl/partrenderer.cpp
--- a/src/gl/partrenderer.cpp	Sun Apr 09 00:56:49 2023 +0300
+++ b/src/gl/partrenderer.cpp	Sun Apr 09 01:12:00 2023 +0300
@@ -237,7 +237,7 @@
 
 void PartRenderer::updateModelMatrix()
 {
-	this->modelMatrix = glm::mat4_cast(this->modelQuaternion);
+	this->modelMatrix = glm::translate(glm::mat4_cast(this->modelQuaternion), -this->modelViewOrigin);
 	gl::setShaderUniformMatrix(&this->shaders, "modelMatrix", modelMatrix);
 	Q_EMIT this->modelMatrixChanged(this->modelMatrix);
 	this->update();
@@ -420,6 +420,12 @@
 	return lineFromPoints(p1, p2);
 }
 
+void PartRenderer::setModelViewOrigin(const glm::vec3& newViewOrigin)
+{
+	this->modelViewOrigin = newViewOrigin;
+	this->updateModelMatrix();
+}
+
 /**
  * @brief Unprojects the specified window coordinates to model coordinates
  * @param win Window coordinates to project. Z-coordinate indicates depth
diff -r ef90ed0a5720 -r 73b6c478378e src/gl/partrenderer.h
--- a/src/gl/partrenderer.h	Sun Apr 09 00:56:49 2023 +0300
+++ b/src/gl/partrenderer.h	Sun Apr 09 01:12:00 2023 +0300
@@ -20,6 +20,7 @@
 	glm::mat4 modelMatrix;
 	glm::vec4 viewportVector;
 	glm::quat modelQuaternion;
+	glm::vec3 modelViewOrigin = {0, 0, 0};
 	QPoint lastMousePosition;
 	int totalMouseMove = 0;
 	gl::RenderPreferences renderPreferences;
@@ -48,6 +49,7 @@
 	void setSelection(const QSet<std::int32_t>& selectedIds);
 	glm::vec3 cameraVector(const QPointF& point) const;
 	Line<3> cameraLine(const QPointF& point) const;
+	Q_SLOT void setModelViewOrigin(const glm::vec3& newViewOrigin);
 Q_SIGNALS:
 	void projectionMatrixChanged(const glm::mat4& newMatrix);
 	void modelMatrixChanged(const glm::mat4& newMatrix);
diff -r ef90ed0a5720 -r 73b6c478378e src/main.cpp
--- a/src/main.cpp	Sun Apr 09 00:56:49 2023 +0300
+++ b/src/main.cpp	Sun Apr 09 01:12:00 2023 +0300
@@ -746,6 +746,7 @@
 				{
 					data->gridLayer->setGridMatrix(newGridMatrix);
 					data->tools->setGridMatrix(newGridMatrix);
+					data->canvas->setModelViewOrigin(newGridMatrix[3]);
 					data->canvas->update();
 				}
 			});