X-Git-Url: https://git.xonotic.org/?a=blobdiff_plain;f=gl_backend.c;h=4e5700b88bee1aa75d65f1742861a59feeb67419;hb=ec2ededaa2abdac2ae14ee5a37eca8770830657c;hp=710eb7445aaa15d0e585a31b56cc043e99bed07e;hpb=1212b6bbf6264e63229f0c4fcdca7cade6065a6e;p=xonotic%2Fdarkplaces.git

diff --git a/gl_backend.c b/gl_backend.c
index 710eb744..4e5700b8 100644
--- a/gl_backend.c
+++ b/gl_backend.c
@@ -561,9 +561,6 @@ void R_Viewport_InitPerspective(r_viewport_t *v, const matrix4x4_t *cameramatrix
 	float m[16];
 	memset(v, 0, sizeof(*v));
 
-	if(v_flipped.integer)
-		frustumx = -frustumx;
-
 	v->type = R_VIEWPORTTYPE_PERSPECTIVE;
 	v->cameramatrix = *cameramatrix;
 	v->x = x;
@@ -589,6 +586,14 @@ void R_Viewport_InitPerspective(r_viewport_t *v, const matrix4x4_t *cameramatrix
 	if (nearplane)
 		R_Viewport_ApplyNearClipPlaneFloatGL(v, m, nearplane[0], nearplane[1], nearplane[2], nearplane[3]);
 
+	if(v_flipped.integer)
+	{
+		m[0] = -m[0];
+		m[4] = -m[4];
+		m[8] = -m[8];
+		m[12] = -m[12];
+	}
+
 	Matrix4x4_FromArrayFloatGL(&v->projectmatrix, m);
 }
 
@@ -599,9 +604,6 @@ void R_Viewport_InitPerspectiveInfinite(r_viewport_t *v, const matrix4x4_t *came
 	float m[16];
 	memset(v, 0, sizeof(*v));
 
-	if(v_flipped.integer)
-		frustumx = -frustumx;
-
 	v->type = R_VIEWPORTTYPE_PERSPECTIVE_INFINITEFARCLIP;
 	v->cameramatrix = *cameramatrix;
 	v->x = x;
@@ -627,6 +629,14 @@ void R_Viewport_InitPerspectiveInfinite(r_viewport_t *v, const matrix4x4_t *came
 	if (nearplane)
 		R_Viewport_ApplyNearClipPlaneFloatGL(v, m, nearplane[0], nearplane[1], nearplane[2], nearplane[3]);
 
+	if(v_flipped.integer)
+	{
+		m[0] = -m[0];
+		m[4] = -m[4];
+		m[8] = -m[8];
+		m[12] = -m[12];
+	}
+
 	Matrix4x4_FromArrayFloatGL(&v->projectmatrix, m);
 }