diff --git a/mappings/com/mojang/blaze3d/platform/FramebufferInfo.mapping b/mappings/com/mojang/blaze3d/platform/FramebufferInfo.mapping
index c98ac14081..3e53144f50 100644
--- a/mappings/com/mojang/blaze3d/platform/FramebufferInfo.mapping
+++ b/mappings/com/mojang/blaze3d/platform/FramebufferInfo.mapping
@@ -1,4 +1,17 @@
 CLASS net/minecraft/class_4492 com/mojang/blaze3d/platform/FramebufferInfo
-	FIELD field_20457 target I
-	FIELD field_20458 renderBufferTarget I
-	FIELD field_20460 attachment I
+	COMMENT Contains global constants for the frame buffer and frame buffer states,
+	COMMENT normalized to the current implementation running on the target system.
+	FIELD field_20457 FRAME_BUFFER I
+	FIELD field_20458 RENDER_BUFFER I
+	FIELD field_20459 COLOR_ATTACHMENT I
+	FIELD field_20460 DEPTH_ATTACHMENT I
+	FIELD field_20461 FRAME_BUFFER_COMPLETE I
+		COMMENT {@see GL30#GL_FRAMEBUFFER_COMPLETE}
+	FIELD field_20462 FRAME_BUFFER_INCOMPLETE_ATTACHMENT I
+		COMMENT {@see GL30#GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT}
+	FIELD field_20463 FRAME_BUFFER_INCOMPLETE_MISSING_ATTACHMENT I
+		COMMENT {@see GL30#GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT}
+	FIELD field_20464 FRAME_BUFFER_INCOMPLETE_DRAW_BUFFER I
+		COMMENT {@see GL30#GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER}
+	FIELD field_20465 FRAME_BUFFER_INCOMPLETE_READ_BUFFER I
+		COMMENT {@see GL30#GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER}
diff --git a/mappings/com/mojang/blaze3d/platform/GlStateManager.mapping b/mappings/com/mojang/blaze3d/platform/GlStateManager.mapping
index b2dac7ca33..535fdbea8c 100644
--- a/mappings/com/mojang/blaze3d/platform/GlStateManager.mapping
+++ b/mappings/com/mojang/blaze3d/platform/GlStateManager.mapping
@@ -176,6 +176,11 @@ CLASS net/minecraft/class_4493 com/mojang/blaze3d/platform/GlStateManager
 	METHOD method_21972 multMatrix (Ljava/nio/FloatBuffer;)V
 		ARG 0 matrix
 	METHOD method_21973 initFramebufferSupport (Lorg/lwjgl/opengl/GLCapabilities;)Ljava/lang/String;
+		COMMENT Configures the frame buffer and populates {@link FrameBufferInfo} with the appropriate constants
+		COMMENT for the current GLCapabilities.
+		COMMENT
+		COMMENT @returns human-readable string representing the selected frame buffer technology.
+		COMMENT @throws IllegalStateException if no known frame buffer technology is supported.
 		ARG 0 capabilities
 	METHOD method_21974 depthMask (Z)V
 		ARG 0 mask