diff --git a/src/gl/compatibility/gl_20.cpp b/src/gl/compatibility/gl_20.cpp
index d714d3e46d5..3321f95613e 100644
--- a/src/gl/compatibility/gl_20.cpp
+++ b/src/gl/compatibility/gl_20.cpp
@@ -459,8 +459,8 @@ bool gl_SetupLight(int group, Plane & p, ADynamicLight * light, FVector3 & nearP
 
 bool gl_SetupLightTexture()
 {
-	if (GLRenderer->gllight == nullptr) return false;
-	FMaterial * pat = FMaterial::ValidateTexture(GLRenderer->gllight, false);
+	if (!GLRenderer->glLight.isValid()) return false;
+	FMaterial * pat = FMaterial::ValidateTexture(GLRenderer->glLight, false, false);
 	gl_RenderState.SetMaterial(pat, CLAMP_XY_NOMIP, 0, -1, false);
 	return true;
 }
diff --git a/src/gl/renderer/gl_renderer.cpp b/src/gl/renderer/gl_renderer.cpp
index 74bd81c1773..a401fc9b851 100644
--- a/src/gl/renderer/gl_renderer.cpp
+++ b/src/gl/renderer/gl_renderer.cpp
@@ -104,7 +104,6 @@ FGLRenderer::FGLRenderer(OpenGLFrameBuffer *fb)
 	mSkyVBO = nullptr;
 	gl_spriteindex = 0;
 	mShaderManager = nullptr;
-	gllight = glpart2 = glpart = mirrortexture = nullptr;
 	mLights = nullptr;
 	m2DDrawer = nullptr;
 	mTonemapPalette = nullptr;
@@ -172,10 +171,10 @@ void FGLRenderer::Initialize(int width, int height)
 	}
 	else mVAOID = 0;
 
-	if (gl.legacyMode) gllight = FTexture::CreateTexture(Wads.GetNumForFullName("glstuff/gllight.png"), FTexture::TEX_MiscPatch);
-	glpart2 = FTexture::CreateTexture(Wads.GetNumForFullName("glstuff/glpart2.png"), FTexture::TEX_MiscPatch);
-	glpart = FTexture::CreateTexture(Wads.GetNumForFullName("glstuff/glpart.png"), FTexture::TEX_MiscPatch);
-	mirrortexture = FTexture::CreateTexture(Wads.GetNumForFullName("glstuff/mirror.png"), FTexture::TEX_MiscPatch);
+	if (gl.legacyMode) glLight = TexMan.CheckForTexture("glstuff/gllight.png", FTexture::TEX_MiscPatch);
+	glPart2 = TexMan.CheckForTexture("glstuff/glpart2.png", FTexture::TEX_MiscPatch);
+	glPart = TexMan.CheckForTexture("glstuff/glpart.png", FTexture::TEX_MiscPatch);
+	mirrorTexture = TexMan.CheckForTexture("glstuff/mirror.png", FTexture::TEX_MiscPatch);
 
 	mVBO = new FFlatVertexBuffer(width, height);
 	mSkyVBO = new FSkyVertexBuffer;
@@ -206,10 +205,6 @@ FGLRenderer::~FGLRenderer()
 	if (mVBO != NULL) delete mVBO;
 	if (mSkyVBO != NULL) delete mSkyVBO;
 	if (mLights != NULL) delete mLights;
-	if (glpart2) delete glpart2;
-	if (glpart) delete glpart;
-	if (gllight) delete gllight;
-	if (mirrortexture) delete mirrortexture;
 	if (mFBID != 0) glDeleteFramebuffers(1, &mFBID);
 	if (mVAOID != 0)
 	{
diff --git a/src/gl/renderer/gl_renderer.h b/src/gl/renderer/gl_renderer.h
index eb71cd4bed4..857ed72eaa6 100644
--- a/src/gl/renderer/gl_renderer.h
+++ b/src/gl/renderer/gl_renderer.h
@@ -133,10 +133,10 @@ class FGLRenderer
 
 	FShadowMap mShadowMap;
 
-	FTexture *gllight;
-	FTexture *glpart2;
-	FTexture *glpart;
-	FTexture *mirrortexture;
+	FTextureID glLight;
+	FTextureID glPart2;
+	FTextureID glPart;
+	FTextureID mirrorTexture;
 	
 	float mSky1Pos, mSky2Pos;
 
diff --git a/src/gl/scene/gl_sprite.cpp b/src/gl/scene/gl_sprite.cpp
index c07aceed4c1..cfaa34f6ff0 100644
--- a/src/gl/scene/gl_sprite.cpp
+++ b/src/gl/scene/gl_sprite.cpp
@@ -1185,19 +1185,20 @@ void GLSprite::ProcessParticle (particle_t *particle, sector_t *sector)//, int s
 	// [BB] Load the texture for round or smooth particles
 	if (gl_particles_style)
 	{
-		FTexture *lump = NULL;
+		FTextureID lump;
 		if (gl_particles_style == 1)
 		{
-			lump = GLRenderer->glpart2;
+			lump = GLRenderer->glPart2;
 		}
 		else if (gl_particles_style == 2)
 		{
-			lump = GLRenderer->glpart;
+			lump = GLRenderer->glPart;
 		}
+		else lump.SetNull();
 
-		if (lump != NULL)
+		if (lump.isValid())
 		{
-			gltexture = FMaterial::ValidateTexture(lump, true);
+			gltexture = FMaterial::ValidateTexture(lump, true, false);
 			translation = 0;
 
 			ul = gltexture->GetUL();
diff --git a/src/gl/scene/gl_walls_draw.cpp b/src/gl/scene/gl_walls_draw.cpp
index d69ceeb4dd3..beeb103a0f8 100644
--- a/src/gl/scene/gl_walls_draw.cpp
+++ b/src/gl/scene/gl_walls_draw.cpp
@@ -260,7 +260,7 @@ void GLWall::RenderFogBoundary()
 //==========================================================================
 void GLWall::RenderMirrorSurface()
 {
-	if (GLRenderer->mirrortexture == NULL) return;
+	if (!GLRenderer->mirrorTexture.isValid()) return;
 
 	// For the sphere map effect we need a normal of the mirror surface,
 	FVector3 v = glseg.Normal();
@@ -288,7 +288,7 @@ void GLWall::RenderMirrorSurface()
 	gl_RenderState.AlphaFunc(GL_GREATER,0);
 	glDepthFunc(GL_LEQUAL);
 
-	FMaterial * pat=FMaterial::ValidateTexture(GLRenderer->mirrortexture, false);
+	FMaterial * pat=FMaterial::ValidateTexture(GLRenderer->mirrorTexture, false, false);
 	gl_RenderState.SetMaterial(pat, CLAMP_NONE, 0, -1, false);
 
 	flags &= ~GLWF_GLOW;