diff --git a/libraries/gpu-gl-common/src/gpu/gl/GLTexelFormat.cpp b/libraries/gpu-gl-common/src/gpu/gl/GLTexelFormat.cpp
index fef823718f..dd365efc16 100644
--- a/libraries/gpu-gl-common/src/gpu/gl/GLTexelFormat.cpp
+++ b/libraries/gpu-gl-common/src/gpu/gl/GLTexelFormat.cpp
@@ -33,8 +33,8 @@ using namespace gpu::gl;
 #define GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT 0x8E8F
 #endif
 
-bool GLTexelFormat::isCompressed() const {
-    switch (internalFormat) {
+bool GLTexelFormat::isCompressed(GLenum format) {
+    switch (format) {
         case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
         case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
         case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
@@ -92,6 +92,11 @@ bool GLTexelFormat::isCompressed() const {
     }
 }
 
+bool GLTexelFormat::isCompressed() const {
+    return isCompressed(internalFormat);
+}
+
+
 GLenum GLTexelFormat::evalGLTexelFormatInternal(const gpu::Element& dstFormat) {
     GLenum result = GL_RGBA8;
     switch (dstFormat.getDimension()) {
diff --git a/libraries/gpu-gl-common/src/gpu/gl/GLTexelFormat.h b/libraries/gpu-gl-common/src/gpu/gl/GLTexelFormat.h
index 8f37f6b604..b5c805c5b8 100644
--- a/libraries/gpu-gl-common/src/gpu/gl/GLTexelFormat.h
+++ b/libraries/gpu-gl-common/src/gpu/gl/GLTexelFormat.h
@@ -14,13 +14,15 @@ namespace gpu { namespace gl {
 
 class GLTexelFormat {
 public:
-    GLenum internalFormat;
-    GLenum format;
-    GLenum type;
+    GLenum internalFormat{ GL_RGBA8 };
+    GLenum format{ GL_RGBA };
+    GLenum type{ GL_UNSIGNED_BYTE };
 
     GLTexelFormat(GLenum glinternalFormat, GLenum glformat, GLenum gltype) : internalFormat(glinternalFormat), format(glformat), type(gltype) {}
     GLTexelFormat(GLenum glinternalFormat) : internalFormat(glinternalFormat) {}
 
+    static bool isCompressed(GLenum glinternalFormat);
+
     bool isCompressed() const;
 
     static GLTexelFormat evalGLTexelFormat(const Element& dstFormat) {