diff --git a/assets/OpenSans-Regular.ttf b/assets/OpenSans-Regular.ttf
new file mode 100644
index 0000000..29bfd35
Binary files /dev/null and b/assets/OpenSans-Regular.ttf differ
diff --git a/code/font/VEFontCache/VEFontCache.odin b/code/font/VEFontCache/VEFontCache.odin
index 126b4c8..bd32603 100644
--- a/code/font/VEFontCache/VEFontCache.odin
+++ b/code/font/VEFontCache/VEFontCache.odin
@@ -16,6 +16,7 @@ Changes:
 package VEFontCache
 
 import "core:math"
+import "core:mem"
 
 Advance_Snap_Smallfont_Size :: 12
 
@@ -388,6 +389,7 @@ load_font :: proc( ctx : ^Context, label : string, data : []byte, size_px : f32
 		size_scale = size_px < 0.0 ?                             \
 			parser_scale_for_pixel_height( & parser_info, -size_px ) \
 		: parser_scale_for_mapping_em_to_pixels( & parser_info, size_px )
+		// size_scale = 1.0
 
 		used = true
 
@@ -435,20 +437,20 @@ cache_glyph :: proc( ctx : ^Context, font : FontID, glyph_index : Glyph, scale,
 
 	if ctx.debug_print_verbose
 	{
-		log( "shape: \n")
+		log( "shape:")
 		for vertex in shape
 		{
 			if vertex.type == .Move {
-				logf("move_to %d %d\n", vertex.x, vertex.y )
+				logf("move_to %d %d", vertex.x, vertex.y )
 			}
 			else if vertex.type == .Line {
-				logf("line_to %d %d\n", vertex.x, vertex.y )
+				logf("line_to %d %d", vertex.x, vertex.y )
 			}
 			else if vertex.type == .Curve {
-				logf("curve_to %d %d through %d %d\n", vertex.x, vertex.y, vertex.contour_x0, vertex.contour_y0 )
+				logf("curve_to %d %d through %d %d", vertex.x, vertex.y, vertex.contour_x0, vertex.contour_y0 )
 			}
 			else if vertex.type == .Cubic {
-				logf("cubic_to %d %d through %d %d and %d %d\n",
+				logf("cubic_to %d %d through %d %d and %d %d",
 					vertex.x, vertex.y,
 					vertex.contour_x0, vertex.contour_y0,
 					vertex.contour_x1, vertex.contour_y1 )
@@ -668,10 +670,10 @@ shape_text_cached :: proc( ctx : ^Context, font : FontID, text_utf8 : string ) -
 {
 	ELFhash64 :: proc( hash : ^u64, ptr : ^( $Type), count := 1 )
 	{
-		x    := u64(0)
-		bytes = transmute( [^]byte) ptr
+		x     := u64(0)
+		bytes := transmute( [^]byte) ptr
 		for index : i32 = 0; index < i32( size_of(Type)); index += 1 {
-			(hash^) = ((hash^) << 4 ) + bytes[index]
+			(hash^) = ((hash^) << 4 ) + u64(bytes[index])
 			x       = (hash^) & 0xF000000000000000
 			if x != 0 {
 				(hash^) ~= (x >> 24)
@@ -679,7 +681,13 @@ shape_text_cached :: proc( ctx : ^Context, font : FontID, text_utf8 : string ) -
 			(hash^) &= ~x
 		}
 	}
+
+
+	font := font
   hash        := cast(u64) 0x9f8e00d51d263c24;
+	ELFhash64( & hash, raw_data(transmute([]u8) text_utf8), len(text_utf8)  )
+	ELFhash64( & hash, & font )
+
 	shape_cache := & ctx.shape_cache
 	state       := & ctx.shape_cache.state
 
diff --git a/code/sectr/app/state.odin b/code/sectr/app/state.odin
index 331a997..5290a01 100644
--- a/code/sectr/app/state.odin
+++ b/code/sectr/app/state.odin
@@ -238,6 +238,7 @@ State :: struct {
 	font_provider_data : FontProviderData,
 
 	font_firacode                : FontID,
+	font_open_sans               : FontID,
 	font_squidgy_slimes          : FontID,
 	font_rec_mono_semicasual_reg : FontID,
 	default_font                 : FontID,
diff --git a/code/sectr/engine/.render.odin b/code/sectr/engine/.render.odin
index c80322d..3b0fae3 100644
--- a/code/sectr/engine/.render.odin
+++ b/code/sectr/engine/.render.odin
@@ -68,7 +68,7 @@ render :: proc()
 	}
 
 	// learnopengl.com/In-Practice/Text-Rendering
-	when false
+	when true
 	{
 		profile("learngl_text_render_pass")
 		using font_provider_data
diff --git a/code/sectr/engine/client_api.odin b/code/sectr/engine/client_api.odin
index f42e623..b61f425 100644
--- a/code/sectr/engine/client_api.odin
+++ b/code/sectr/engine/client_api.odin
@@ -281,9 +281,12 @@ startup :: proc( prof : ^SpallProfiler, persistent_mem, frame_mem, transient_mem
 		// path_squidgy_slimes := strings.concatenate( { Path_Assets, "Squidgy Slimes.ttf" } )
 		// font_squidgy_slimes = font_load( path_squidgy_slimes, 24.0, "Squidgy_Slime" )
 
-		path_firacode := strings.concatenate( { Path_Assets, "FiraCode-Regular.ttf" } )
-		font_firacode  = font_load( path_firacode, 24.0, "FiraCode" )
-		default_font = font_firacode
+		// path_firacode := strings.concatenate( { Path_Assets, "FiraCode-Regular.ttf" } )
+		// font_firacode  = font_load( path_firacode, 24.0, "FiraCode" )
+
+		path_open_sans := strings.concatenate( { Path_Assets, "OpenSans-Regular.ttf" } )
+		font_open_sans  = font_load( path_open_sans, 24.0, "OpenSans" )
+		default_font = font_open_sans
 		log( "Default font loaded" )
 	}
 
diff --git a/code/sectr/engine/render_vefc.odin b/code/sectr/engine/render_vefc.odin
index ec35d86..ef3790d 100644
--- a/code/sectr/engine/render_vefc.odin
+++ b/code/sectr/engine/render_vefc.odin
@@ -3,6 +3,7 @@ package sectr
 import ve         "codebase:font/VEFontCache"
 import sokol_gfx  "thirdparty:sokol/gfx"
 import sokol_glue "thirdparty:sokol/glue"
+import "core:time"
 
 PassActions :: struct {
 	bg_clear_black : sokol_gfx.Pass_Action,
@@ -38,6 +39,8 @@ render :: proc()
 	do_nothing : bool
 	do_nothing = false
 
+	time.sleep(10000)
+
 	// The below are most likely limited to a "depth layer" and so
 	// different depth layers need different draw pass combos (of the 3 constructive passes)
 	// Will need to profile how expensive it is for batching with the UI box rendering
@@ -47,26 +50,65 @@ render :: proc()
 	using font_provider
 	// ve_ctx := & font_provider.ve_font_cache
 
+	// Triangle Demo
+	if true
+	{
+		using debug.gfx_tri_demo_state
+		sokol_gfx.begin_pass(sokol_gfx.Pass { action = pass_action, swapchain = sokol_glue.swapchain() })
+		sokol_gfx.apply_pipeline( pipeline )
+		sokol_gfx.apply_bindings( bindings )
+
+		sokol_gfx.draw( 0, 3, 1 )
+
+		sokol_gfx.end_pass()
+	}
+
+	// Clear Demo
+	if false
+	{
+	  green_value := debug.gfx_clear_demo_pass_action.colors[0].clear_value.g + 0.01
+	  debug.gfx_clear_demo_pass_action.colors[0].clear_value.g = green_value > 1.0 ? 0.0 : green_value
+
+	  sokol_gfx.begin_pass( sokol_gfx.Pass {
+	  	action    = debug.gfx_clear_demo_pass_action,
+	  	swapchain = sokol_glue.swapchain()
+	  })
+	  sokol_gfx.end_pass()
+	  sokol_gfx.commit()
+	}
+
 	// "Draw text" using immediate mode api
 	{
 		// text_test_str := str_fmt("frametime: %v", frametime_avg_ms)
-		text_test_str := str_fmt("HELLO VE FONT CACHE!!!!!")
+		// text_test_str := str_fmt("HELLO VE FONT CACHE!!!!!")
+		text_test_str := str_fmt("A")
 
 		// font_provider := & state.font_provider_data
 		fdef := hmap_chained_get( font_cache, default_font.key )
 
-		ve.draw_text( & ve_font_cache, fdef.ve_id, text_test_str, {30, 30}, Vec2{1, 1} )
+		width  := app_window.extent.x * 2
+		height := app_window.extent.y * 2
+
+		ve.set_colour( & ve_font_cache,  { 1.0, 1.0, 1.0, 1.0 } )
+		ve.configure_snap( & ve_font_cache, u32(state.app_window.extent.x * 2.0), u32(state.app_window.extent.y * 2.0) )
+
+		ve.draw_text( & ve_font_cache, fdef.ve_id, text_test_str, {0.0, 0.0}, Vec2{1 / width, 1 / height} )
 	}
 
 	// Process the draw calls for drawing text
+	if true
 	{
 		draw_list := ve.get_draw_list( & ve_font_cache )
 
 		sokol_gfx.update_buffer( draw_list_vbuf, Range{ draw_list.vertices.data, draw_list.vertices.num })
 		sokol_gfx.update_buffer( draw_list_ibuf, Range{ draw_list.indices.data,  draw_list.indices.num  })
 
+		draw_list_vert_slice := array_to_slice(draw_list.vertices)
+		draw_list_index_slice := array_to_slice(draw_list.indices)
+		draw_list_call_slice := array_to_slice(draw_list.calls)
 		for & draw_call in array_to_slice(draw_list.calls)
 		{
+			profile("ve draw call")
 			if (draw_call.end_index - draw_call.start_index) == 0 do continue
 
 			switch draw_call.pass
@@ -74,6 +116,7 @@ render :: proc()
 				// 1. Do the glyph rendering pass
 				// Glyphs are first rendered to an intermediate 2k x 512px R8 texture
 				case .Glyph:
+					profile("ve draw call: glyph")
 					width  := ve_font_cache.atlas.buffer_width
 					height := ve_font_cache.atlas.buffer_height
 
@@ -102,9 +145,15 @@ render :: proc()
 					}
 					sokol_gfx.apply_bindings( bindings )
 
+					// num_indices := draw_call.end_index - draw_call.start_index
+					// sokol_gfx.draw( 0, num_indices, 1 )
+
+					// sokol_gfx.end_pass()
+
 				// 2. Do the atlas rendering pass
 				// A simple 16-tap box downsample shader is then used to blit from this intermediate texture to the final atlas location
 				case .Atlas:
+					profile("ve draw call: atlas")
 					width  := ve_font_cache.atlas.width
 					height := ve_font_cache.atlas.height
 
@@ -142,6 +191,7 @@ render :: proc()
 				case .None: fallthrough
 				case .Target: fallthrough
 				case .Target_Uncached:
+					profile("ve draw call: target")
 					width  := u32(app_window.extent.x * 2)
 					height := u32(app_window.extent.y * 2)
 
@@ -180,11 +230,12 @@ render :: proc()
 			}
 
 			num_indices := draw_call.end_index - draw_call.start_index
-			sokol_gfx.draw( 0, num_indices, 1 )
+			sokol_gfx.draw( draw_call.start_index, num_indices, 1 )
 
 			sokol_gfx.end_pass()
 		}
 
 		sokol_gfx.commit()
+		ve.flush_draw_list( & ve_font_cache )
 	}
 }
diff --git a/code/sectr/font/.simple_provider.odin b/code/sectr/font/.simple_provider.odin
index 6f9568a..917795a 100644
--- a/code/sectr/font/.simple_provider.odin
+++ b/code/sectr/font/.simple_provider.odin
@@ -204,6 +204,11 @@ font_provider_startup :: proc()
 	log("font_provider initialized")
 }
 
+font_provider_reload :: proc()
+{
+	
+}
+
 font_provider_shutdown :: proc()
 {
 	font_provider_data := & get_state().font_provider_data; using font_provider_data
diff --git a/code/sectr/font/provider_VEFontCache.odin b/code/sectr/font/provider_VEFontCache.odin
index 147e631..6edfa3d 100644
--- a/code/sectr/font/provider_VEFontCache.odin
+++ b/code/sectr/font/provider_VEFontCache.odin
@@ -75,6 +75,10 @@ font_provider_startup :: proc()
 
 	ve.configure_snap( & provider_data.ve_font_cache, u32(state.app_window.extent.x * 2.0), u32(state.app_window.extent.y * 2.0) )
 
+	provider_data.ve_font_cache.debug_print = true
+	provider_data.ve_font_cache.debug_print_verbose = true
+
+	
 	// TODO(Ed): Setup sokol hookup for VEFontCache
 	{
 		AttachmentDesc          :: sokol_gfx.Attachment_Desc
@@ -160,6 +164,8 @@ font_provider_startup :: proc()
 					enabled = true,
 					src_factor_rgb   = .ONE_MINUS_DST_COLOR,
 					dst_factor_rgb   = .ONE_MINUS_SRC_COLOR,
+					// src_factor_rgb   = .SRC_ALPHA,
+					// dst_factor_rgb   = .ONE_MINUS_SRC_ALPHA,
 					op_rgb           = BlendOp.ADD,
 					src_factor_alpha = BlendFactor.ONE,
 					dst_factor_alpha = BlendFactor.ZERO,
@@ -430,7 +436,7 @@ font_provider_reload :: proc()
 	state         := get_state()
 	provider_data := & state.font_provider_data
 
-	ve.configure_snap( & provider_data.ve_font_cache, u32(state.app_window.extent.x * 2.0), u32(state.app_window.extent.y) )
+	ve.configure_snap( & provider_data.ve_font_cache, u32(state.app_window.extent.x * 2.0), u32(state.app_window.extent.y * 2.0) )
 }
 
 font_provider_shutdown :: proc()
@@ -473,7 +479,7 @@ font_load :: proc(path_file : string,
 	def.path_file = path_file
 
 	// TODO(Ed): Load even sizes from 8px to upper bound.
-	def.ve_id = ve.load_font( & provider_data.ve_font_cache, desired_id, font_data, 36.0 )
+	def.ve_id = ve.load_font( & provider_data.ve_font_cache, desired_id, font_data, 72.0 )
 
 	fid := FontID { key, desired_id }
 	return fid
diff --git a/code/sectr/shaders/simple_font_glyph.odin b/code/sectr/shaders/simple_font_glyph.odin
index d341c06..f3f6ad1 100644
--- a/code/sectr/shaders/simple_font_glyph.odin
+++ b/code/sectr/shaders/simple_font_glyph.odin
@@ -6,7 +6,7 @@ import sg "thirdparty:sokol/gfx"
     Generated by sokol-shdc (https://github.com/floooh/sokol-tools)
 
     Cmdline:
-        sokol-shdc --input C:\projects\SectrPrototype\code\sectr\shaders\simple_font_glyph.shdc.glsl --output C:\projects\SectrPrototype\code\sectr\shaders\simple_font_glyph.odin --slang hlsl5 --format=sokol_odin
+        sokol-shdc --input C:\projects\SectrPrototype\code\sectr\shaders\simple_font_glyph.shdc.glsl --output C:\projects\SectrPrototype\code\sectr\shaders\simple_font_glyph.odin --slang glsl410:hlsl5 --format=sokol_odin
 
     Overview:
     =========
@@ -52,6 +52,84 @@ Font_Glyph_Fs_Params :: struct #align(16) {
         _: [4]u8,
     },
 }
+/*
+    #version 410
+
+    uniform vec4 font_glyph_vs_params[4];
+    layout(location = 0) in vec2 vertex;
+    layout(location = 0) out vec2 uv;
+    layout(location = 1) in vec2 texture_coord;
+
+    void main()
+    {
+        gl_Position = mat4(font_glyph_vs_params[0], font_glyph_vs_params[1], font_glyph_vs_params[2], font_glyph_vs_params[3]) * vec4(vertex, 0.0, 1.0);
+        uv = texture_coord;
+    }
+
+*/
+@(private)
+font_glyph_vs_source_glsl410 := [359]u8 {
+    0x23,0x76,0x65,0x72,0x73,0x69,0x6f,0x6e,0x20,0x34,0x31,0x30,0x0a,0x0a,0x75,0x6e,
+    0x69,0x66,0x6f,0x72,0x6d,0x20,0x76,0x65,0x63,0x34,0x20,0x66,0x6f,0x6e,0x74,0x5f,
+    0x67,0x6c,0x79,0x70,0x68,0x5f,0x76,0x73,0x5f,0x70,0x61,0x72,0x61,0x6d,0x73,0x5b,
+    0x34,0x5d,0x3b,0x0a,0x6c,0x61,0x79,0x6f,0x75,0x74,0x28,0x6c,0x6f,0x63,0x61,0x74,
+    0x69,0x6f,0x6e,0x20,0x3d,0x20,0x30,0x29,0x20,0x69,0x6e,0x20,0x76,0x65,0x63,0x32,
+    0x20,0x76,0x65,0x72,0x74,0x65,0x78,0x3b,0x0a,0x6c,0x61,0x79,0x6f,0x75,0x74,0x28,
+    0x6c,0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,0x30,0x29,0x20,0x6f,0x75,
+    0x74,0x20,0x76,0x65,0x63,0x32,0x20,0x75,0x76,0x3b,0x0a,0x6c,0x61,0x79,0x6f,0x75,
+    0x74,0x28,0x6c,0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,0x31,0x29,0x20,
+    0x69,0x6e,0x20,0x76,0x65,0x63,0x32,0x20,0x74,0x65,0x78,0x74,0x75,0x72,0x65,0x5f,
+    0x63,0x6f,0x6f,0x72,0x64,0x3b,0x0a,0x0a,0x76,0x6f,0x69,0x64,0x20,0x6d,0x61,0x69,
+    0x6e,0x28,0x29,0x0a,0x7b,0x0a,0x20,0x20,0x20,0x20,0x67,0x6c,0x5f,0x50,0x6f,0x73,
+    0x69,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,0x6d,0x61,0x74,0x34,0x28,0x66,0x6f,0x6e,
+    0x74,0x5f,0x67,0x6c,0x79,0x70,0x68,0x5f,0x76,0x73,0x5f,0x70,0x61,0x72,0x61,0x6d,
+    0x73,0x5b,0x30,0x5d,0x2c,0x20,0x66,0x6f,0x6e,0x74,0x5f,0x67,0x6c,0x79,0x70,0x68,
+    0x5f,0x76,0x73,0x5f,0x70,0x61,0x72,0x61,0x6d,0x73,0x5b,0x31,0x5d,0x2c,0x20,0x66,
+    0x6f,0x6e,0x74,0x5f,0x67,0x6c,0x79,0x70,0x68,0x5f,0x76,0x73,0x5f,0x70,0x61,0x72,
+    0x61,0x6d,0x73,0x5b,0x32,0x5d,0x2c,0x20,0x66,0x6f,0x6e,0x74,0x5f,0x67,0x6c,0x79,
+    0x70,0x68,0x5f,0x76,0x73,0x5f,0x70,0x61,0x72,0x61,0x6d,0x73,0x5b,0x33,0x5d,0x29,
+    0x20,0x2a,0x20,0x76,0x65,0x63,0x34,0x28,0x76,0x65,0x72,0x74,0x65,0x78,0x2c,0x20,
+    0x30,0x2e,0x30,0x2c,0x20,0x31,0x2e,0x30,0x29,0x3b,0x0a,0x20,0x20,0x20,0x20,0x75,
+    0x76,0x20,0x3d,0x20,0x74,0x65,0x78,0x74,0x75,0x72,0x65,0x5f,0x63,0x6f,0x6f,0x72,
+    0x64,0x3b,0x0a,0x7d,0x0a,0x0a,0x00,
+}
+/*
+    #version 410
+
+    uniform vec4 font_glyph_fs_params[1];
+    uniform sampler2D glyph_bitmap_glyph_bitmap_sampler;
+
+    layout(location = 0) in vec2 uv;
+    layout(location = 0) out vec4 color;
+
+    void main()
+    {
+        color = vec4(font_glyph_fs_params[0].xyz, texture(glyph_bitmap_glyph_bitmap_sampler, uv).x);
+    }
+
+*/
+@(private)
+font_glyph_fs_source_glsl410 := [292]u8 {
+    0x23,0x76,0x65,0x72,0x73,0x69,0x6f,0x6e,0x20,0x34,0x31,0x30,0x0a,0x0a,0x75,0x6e,
+    0x69,0x66,0x6f,0x72,0x6d,0x20,0x76,0x65,0x63,0x34,0x20,0x66,0x6f,0x6e,0x74,0x5f,
+    0x67,0x6c,0x79,0x70,0x68,0x5f,0x66,0x73,0x5f,0x70,0x61,0x72,0x61,0x6d,0x73,0x5b,
+    0x31,0x5d,0x3b,0x0a,0x75,0x6e,0x69,0x66,0x6f,0x72,0x6d,0x20,0x73,0x61,0x6d,0x70,
+    0x6c,0x65,0x72,0x32,0x44,0x20,0x67,0x6c,0x79,0x70,0x68,0x5f,0x62,0x69,0x74,0x6d,
+    0x61,0x70,0x5f,0x67,0x6c,0x79,0x70,0x68,0x5f,0x62,0x69,0x74,0x6d,0x61,0x70,0x5f,
+    0x73,0x61,0x6d,0x70,0x6c,0x65,0x72,0x3b,0x0a,0x0a,0x6c,0x61,0x79,0x6f,0x75,0x74,
+    0x28,0x6c,0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,0x30,0x29,0x20,0x69,
+    0x6e,0x20,0x76,0x65,0x63,0x32,0x20,0x75,0x76,0x3b,0x0a,0x6c,0x61,0x79,0x6f,0x75,
+    0x74,0x28,0x6c,0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,0x30,0x29,0x20,
+    0x6f,0x75,0x74,0x20,0x76,0x65,0x63,0x34,0x20,0x63,0x6f,0x6c,0x6f,0x72,0x3b,0x0a,
+    0x0a,0x76,0x6f,0x69,0x64,0x20,0x6d,0x61,0x69,0x6e,0x28,0x29,0x0a,0x7b,0x0a,0x20,
+    0x20,0x20,0x20,0x63,0x6f,0x6c,0x6f,0x72,0x20,0x3d,0x20,0x76,0x65,0x63,0x34,0x28,
+    0x66,0x6f,0x6e,0x74,0x5f,0x67,0x6c,0x79,0x70,0x68,0x5f,0x66,0x73,0x5f,0x70,0x61,
+    0x72,0x61,0x6d,0x73,0x5b,0x30,0x5d,0x2e,0x78,0x79,0x7a,0x2c,0x20,0x74,0x65,0x78,
+    0x74,0x75,0x72,0x65,0x28,0x67,0x6c,0x79,0x70,0x68,0x5f,0x62,0x69,0x74,0x6d,0x61,
+    0x70,0x5f,0x67,0x6c,0x79,0x70,0x68,0x5f,0x62,0x69,0x74,0x6d,0x61,0x70,0x5f,0x73,
+    0x61,0x6d,0x70,0x6c,0x65,0x72,0x2c,0x20,0x75,0x76,0x29,0x2e,0x78,0x29,0x3b,0x0a,
+    0x7d,0x0a,0x0a,0x00,
+}
 /*
     cbuffer font_glyph_vs_params : register(b0)
     {
@@ -232,6 +310,33 @@ font_glyph_shader_desc :: proc (backend: sg.Backend) -> sg.Shader_Desc {
     desc: sg.Shader_Desc
     desc.label = "font_glyph_shader"
     #partial switch backend {
+    case .GLCORE:
+        desc.attrs[0].name = "vertex"
+        desc.attrs[1].name = "texture_coord"
+        desc.vs.source = transmute(cstring)&font_glyph_vs_source_glsl410
+        desc.vs.entry = "main"
+        desc.vs.uniform_blocks[0].size = 64
+        desc.vs.uniform_blocks[0].layout = .STD140
+        desc.vs.uniform_blocks[0].uniforms[0].name = "font_glyph_vs_params"
+        desc.vs.uniform_blocks[0].uniforms[0].type = .FLOAT4
+        desc.vs.uniform_blocks[0].uniforms[0].array_count = 4
+        desc.fs.source = transmute(cstring)&font_glyph_fs_source_glsl410
+        desc.fs.entry = "main"
+        desc.fs.uniform_blocks[0].size = 16
+        desc.fs.uniform_blocks[0].layout = .STD140
+        desc.fs.uniform_blocks[0].uniforms[0].name = "font_glyph_fs_params"
+        desc.fs.uniform_blocks[0].uniforms[0].type = .FLOAT4
+        desc.fs.uniform_blocks[0].uniforms[0].array_count = 1
+        desc.fs.images[0].used = true
+        desc.fs.images[0].multisampled = false
+        desc.fs.images[0].image_type = ._2D
+        desc.fs.images[0].sample_type = .FLOAT
+        desc.fs.samplers[0].used = true
+        desc.fs.samplers[0].sampler_type = .FILTERING
+        desc.fs.image_sampler_pairs[0].used = true
+        desc.fs.image_sampler_pairs[0].image_slot = 0
+        desc.fs.image_sampler_pairs[0].sampler_slot = 0
+        desc.fs.image_sampler_pairs[0].glsl_name = "glyph_bitmap_glyph_bitmap_sampler"
     case .D3D11:
         desc.attrs[0].sem_name = "TEXCOORD"
         desc.attrs[0].sem_index = 0
diff --git a/code/sectr/shaders/ve_blit_atlas.odin b/code/sectr/shaders/ve_blit_atlas.odin
index 892bd43..dda129f 100644
--- a/code/sectr/shaders/ve_blit_atlas.odin
+++ b/code/sectr/shaders/ve_blit_atlas.odin
@@ -6,7 +6,7 @@ import sg "thirdparty:sokol/gfx"
     Generated by sokol-shdc (https://github.com/floooh/sokol-tools)
 
     Cmdline:
-        sokol-shdc --input C:\projects\SectrPrototype\code\sectr\shaders\ve_blit_atlas.shdc.glsl --output C:\projects\SectrPrototype\code\sectr\shaders\ve_blit_atlas.odin --slang hlsl5 --format=sokol_odin --module =vefc_blit_atlas
+        sokol-shdc --input C:\projects\SectrPrototype\code\sectr\shaders\ve_blit_atlas.shdc.glsl --output C:\projects\SectrPrototype\code\sectr\shaders\ve_blit_atlas.odin --slang glsl410:hlsl5 --format=sokol_odin --module =vefc_blit_atlas
 
     Overview:
     =========
@@ -43,6 +43,203 @@ Ve_Blit_Atlas_Fs_Params :: struct #align(16) {
         _: [12]u8,
     },
 }
+/*
+    #version 410
+
+    layout(location = 0) out vec2 uv;
+    layout(location = 1) in vec2 v_texture;
+    layout(location = 0) in vec2 v_position;
+
+    void main()
+    {
+        uv = v_texture;
+        gl_Position = vec4(v_position, 0.0, 1.0);
+    }
+
+*/
+@(private)
+ve_blit_atlas_vs_source_glsl410 := [214]u8 {
+    0x23,0x76,0x65,0x72,0x73,0x69,0x6f,0x6e,0x20,0x34,0x31,0x30,0x0a,0x0a,0x6c,0x61,
+    0x79,0x6f,0x75,0x74,0x28,0x6c,0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,
+    0x30,0x29,0x20,0x6f,0x75,0x74,0x20,0x76,0x65,0x63,0x32,0x20,0x75,0x76,0x3b,0x0a,
+    0x6c,0x61,0x79,0x6f,0x75,0x74,0x28,0x6c,0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,
+    0x3d,0x20,0x31,0x29,0x20,0x69,0x6e,0x20,0x76,0x65,0x63,0x32,0x20,0x76,0x5f,0x74,
+    0x65,0x78,0x74,0x75,0x72,0x65,0x3b,0x0a,0x6c,0x61,0x79,0x6f,0x75,0x74,0x28,0x6c,
+    0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,0x30,0x29,0x20,0x69,0x6e,0x20,
+    0x76,0x65,0x63,0x32,0x20,0x76,0x5f,0x70,0x6f,0x73,0x69,0x74,0x69,0x6f,0x6e,0x3b,
+    0x0a,0x0a,0x76,0x6f,0x69,0x64,0x20,0x6d,0x61,0x69,0x6e,0x28,0x29,0x0a,0x7b,0x0a,
+    0x20,0x20,0x20,0x20,0x75,0x76,0x20,0x3d,0x20,0x76,0x5f,0x74,0x65,0x78,0x74,0x75,
+    0x72,0x65,0x3b,0x0a,0x20,0x20,0x20,0x20,0x67,0x6c,0x5f,0x50,0x6f,0x73,0x69,0x74,
+    0x69,0x6f,0x6e,0x20,0x3d,0x20,0x76,0x65,0x63,0x34,0x28,0x76,0x5f,0x70,0x6f,0x73,
+    0x69,0x74,0x69,0x6f,0x6e,0x2c,0x20,0x30,0x2e,0x30,0x2c,0x20,0x31,0x2e,0x30,0x29,
+    0x3b,0x0a,0x7d,0x0a,0x0a,0x00,
+}
+/*
+    #version 410
+
+    uniform ivec4 ve_blit_atlas_fs_params[1];
+    uniform sampler2D ve_blit_atlas_src_texture_ve_blit_atlas_src_sampler;
+
+    layout(location = 0) in vec2 uv;
+    layout(location = 0) out vec4 frag_color;
+
+    float down_sample(vec2 uv_1, vec2 texture_size)
+    {
+        return 0.25 * (((texture(ve_blit_atlas_src_texture_ve_blit_atlas_src_sampler, uv_1).x + texture(ve_blit_atlas_src_texture_ve_blit_atlas_src_sampler, fma(vec2(0.0, 1.0), texture_size, uv_1)).x) + texture(ve_blit_atlas_src_texture_ve_blit_atlas_src_sampler, fma(vec2(1.0, 0.0), texture_size, uv_1)).x) + texture(ve_blit_atlas_src_texture_ve_blit_atlas_src_sampler, uv_1 + texture_size).x);
+    }
+
+    void main()
+    {
+        uint _88 = uint(ve_blit_atlas_fs_params[0].x);
+        bool _89 = _88 == 0u;
+        bool _98;
+        if (!_89)
+        {
+            _98 = _88 == 1u;
+        }
+        else
+        {
+            _98 = _89;
+        }
+        bool _107;
+        if (!_98)
+        {
+            _107 = _88 == 2u;
+        }
+        else
+        {
+            _107 = _98;
+        }
+        if (_107)
+        {
+            vec2 param = uv + vec2(-0.00048828125, -0.0029296875);
+            vec2 param_1 = vec2(0.00048828125, 0.001953125);
+            vec2 param_2 = uv + vec2(0.000244140625, -0.0029296875);
+            vec2 param_3 = vec2(0.00048828125, 0.001953125);
+            vec2 param_4 = uv + vec2(-0.000732421875, 0.0009765625);
+            vec2 param_5 = vec2(0.00048828125, 0.001953125);
+            vec2 param_6 = uv + vec2(0.000244140625, 0.0009765625);
+            vec2 param_7 = vec2(0.00048828125, 0.001953125);
+            frag_color = vec4(1.0, 1.0, 1.0, 0.25 * (((down_sample(param, param_1) + down_sample(param_2, param_3)) + down_sample(param_4, param_5)) + down_sample(param_6, param_7)));
+        }
+        else
+        {
+            frag_color = vec4(0.0, 0.0, 0.0, 1.0);
+        }
+    }
+
+*/
+@(private)
+ve_blit_atlas_fs_source_glsl410 := [1716]u8 {
+    0x23,0x76,0x65,0x72,0x73,0x69,0x6f,0x6e,0x20,0x34,0x31,0x30,0x0a,0x0a,0x75,0x6e,
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+    0x76,0x65,0x63,0x34,0x28,0x30,0x2e,0x30,0x2c,0x20,0x30,0x2e,0x30,0x2c,0x20,0x30,
+    0x2e,0x30,0x2c,0x20,0x31,0x2e,0x30,0x29,0x3b,0x0a,0x20,0x20,0x20,0x20,0x7d,0x0a,
+    0x7d,0x0a,0x0a,0x00,
+}
 /*
     static float4 gl_Position;
     static float2 uv;
@@ -342,6 +539,28 @@ ve_blit_atlas_shader_desc :: proc (backend: sg.Backend) -> sg.Shader_Desc {
     desc: sg.Shader_Desc
     desc.label = "ve_blit_atlas_shader"
     #partial switch backend {
+    case .GLCORE:
+        desc.attrs[0].name = "v_position"
+        desc.attrs[1].name = "v_texture"
+        desc.vs.source = transmute(cstring)&ve_blit_atlas_vs_source_glsl410
+        desc.vs.entry = "main"
+        desc.fs.source = transmute(cstring)&ve_blit_atlas_fs_source_glsl410
+        desc.fs.entry = "main"
+        desc.fs.uniform_blocks[0].size = 16
+        desc.fs.uniform_blocks[0].layout = .STD140
+        desc.fs.uniform_blocks[0].uniforms[0].name = "ve_blit_atlas_fs_params"
+        desc.fs.uniform_blocks[0].uniforms[0].type = .INT4
+        desc.fs.uniform_blocks[0].uniforms[0].array_count = 1
+        desc.fs.images[0].used = true
+        desc.fs.images[0].multisampled = false
+        desc.fs.images[0].image_type = ._2D
+        desc.fs.images[0].sample_type = .FLOAT
+        desc.fs.samplers[0].used = true
+        desc.fs.samplers[0].sampler_type = .FILTERING
+        desc.fs.image_sampler_pairs[0].used = true
+        desc.fs.image_sampler_pairs[0].image_slot = 0
+        desc.fs.image_sampler_pairs[0].sampler_slot = 0
+        desc.fs.image_sampler_pairs[0].glsl_name = "ve_blit_atlas_src_texture_ve_blit_atlas_src_sampler"
     case .D3D11:
         desc.attrs[0].sem_name = "TEXCOORD"
         desc.attrs[0].sem_index = 0
diff --git a/code/sectr/shaders/ve_demo/ve_demo_glyph_vs.glsl b/code/sectr/shaders/ve_demo/ve_demo_glyph_vs.glsl
new file mode 100644
index 0000000..e69de29
diff --git a/code/sectr/shaders/ve_draw_text.odin b/code/sectr/shaders/ve_draw_text.odin
index 17c5f6c..886f2fe 100644
--- a/code/sectr/shaders/ve_draw_text.odin
+++ b/code/sectr/shaders/ve_draw_text.odin
@@ -6,7 +6,7 @@ import sg "thirdparty:sokol/gfx"
     Generated by sokol-shdc (https://github.com/floooh/sokol-tools)
 
     Cmdline:
-        sokol-shdc --input C:\projects\SectrPrototype\code\sectr\shaders\ve_draw_text.shdc.glsl --output C:\projects\SectrPrototype\code\sectr\shaders\ve_draw_text.odin --slang hlsl5 --format=sokol_odin --module =vefc_draw_text
+        sokol-shdc --input C:\projects\SectrPrototype\code\sectr\shaders\ve_draw_text.shdc.glsl --output C:\projects\SectrPrototype\code\sectr\shaders\ve_draw_text.odin --slang glsl410:hlsl5 --format=sokol_odin --module =vefc_draw_text
 
     Overview:
     =========
@@ -44,6 +44,127 @@ Ve_Draw_Text_Fs_Params :: struct #align(16) {
         colour: [4]f32,
     },
 }
+/*
+    #version 410
+
+    layout(location = 0) out vec2 uv;
+    layout(location = 1) in vec2 v_texture;
+    layout(location = 0) in vec2 v_position;
+
+    void main()
+    {
+        uv = v_texture;
+        gl_Position = vec4((v_position * 2.0) - vec2(1.0), 0.0, 1.0);
+    }
+
+*/
+@(private)
+ve_draw_text_vs_source_glsl410 := [234]u8 {
+    0x23,0x76,0x65,0x72,0x73,0x69,0x6f,0x6e,0x20,0x34,0x31,0x30,0x0a,0x0a,0x6c,0x61,
+    0x79,0x6f,0x75,0x74,0x28,0x6c,0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,
+    0x30,0x29,0x20,0x6f,0x75,0x74,0x20,0x76,0x65,0x63,0x32,0x20,0x75,0x76,0x3b,0x0a,
+    0x6c,0x61,0x79,0x6f,0x75,0x74,0x28,0x6c,0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,
+    0x3d,0x20,0x31,0x29,0x20,0x69,0x6e,0x20,0x76,0x65,0x63,0x32,0x20,0x76,0x5f,0x74,
+    0x65,0x78,0x74,0x75,0x72,0x65,0x3b,0x0a,0x6c,0x61,0x79,0x6f,0x75,0x74,0x28,0x6c,
+    0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,0x30,0x29,0x20,0x69,0x6e,0x20,
+    0x76,0x65,0x63,0x32,0x20,0x76,0x5f,0x70,0x6f,0x73,0x69,0x74,0x69,0x6f,0x6e,0x3b,
+    0x0a,0x0a,0x76,0x6f,0x69,0x64,0x20,0x6d,0x61,0x69,0x6e,0x28,0x29,0x0a,0x7b,0x0a,
+    0x20,0x20,0x20,0x20,0x75,0x76,0x20,0x3d,0x20,0x76,0x5f,0x74,0x65,0x78,0x74,0x75,
+    0x72,0x65,0x3b,0x0a,0x20,0x20,0x20,0x20,0x67,0x6c,0x5f,0x50,0x6f,0x73,0x69,0x74,
+    0x69,0x6f,0x6e,0x20,0x3d,0x20,0x76,0x65,0x63,0x34,0x28,0x28,0x76,0x5f,0x70,0x6f,
+    0x73,0x69,0x74,0x69,0x6f,0x6e,0x20,0x2a,0x20,0x32,0x2e,0x30,0x29,0x20,0x2d,0x20,
+    0x76,0x65,0x63,0x32,0x28,0x31,0x2e,0x30,0x29,0x2c,0x20,0x30,0x2e,0x30,0x2c,0x20,
+    0x31,0x2e,0x30,0x29,0x3b,0x0a,0x7d,0x0a,0x0a,0x00,
+}
+/*
+    #version 410
+
+    struct ve_draw_text_fs_params
+    {
+        int down_sample;
+        vec4 colour;
+    };
+
+    uniform ve_draw_text_fs_params _31;
+
+    uniform sampler2D ve_draw_text_src_texture_ve_draw_text_src_sampler;
+
+    layout(location = 0) in vec2 uv;
+    layout(location = 0) out vec4 frag_color;
+
+    void main()
+    {
+        float alpha = texture(ve_draw_text_src_texture_ve_draw_text_src_sampler, uv).x;
+        if (uint(_31.down_sample) == 1u)
+        {
+            alpha = 0.25 * (((texture(ve_draw_text_src_texture_ve_draw_text_src_sampler, uv + vec2(-0.000244140625, -0.0009765625)).x + texture(ve_draw_text_src_texture_ve_draw_text_src_sampler, uv + vec2(-0.000244140625, 0.0009765625)).x) + texture(ve_draw_text_src_texture_ve_draw_text_src_sampler, uv + vec2(0.000244140625, -0.0009765625)).x) + texture(ve_draw_text_src_texture_ve_draw_text_src_sampler, uv + vec2(0.000244140625, 0.0009765625)).x);
+        }
+        frag_color = vec4(_31.colour.xyz, _31.colour.w * alpha);
+    }
+
+*/
+@(private)
+ve_draw_text_fs_source_glsl410 := [931]u8 {
+    0x23,0x76,0x65,0x72,0x73,0x69,0x6f,0x6e,0x20,0x34,0x31,0x30,0x0a,0x0a,0x73,0x74,
+    0x72,0x75,0x63,0x74,0x20,0x76,0x65,0x5f,0x64,0x72,0x61,0x77,0x5f,0x74,0x65,0x78,
+    0x74,0x5f,0x66,0x73,0x5f,0x70,0x61,0x72,0x61,0x6d,0x73,0x0a,0x7b,0x0a,0x20,0x20,
+    0x20,0x20,0x69,0x6e,0x74,0x20,0x64,0x6f,0x77,0x6e,0x5f,0x73,0x61,0x6d,0x70,0x6c,
+    0x65,0x3b,0x0a,0x20,0x20,0x20,0x20,0x76,0x65,0x63,0x34,0x20,0x63,0x6f,0x6c,0x6f,
+    0x75,0x72,0x3b,0x0a,0x7d,0x3b,0x0a,0x0a,0x75,0x6e,0x69,0x66,0x6f,0x72,0x6d,0x20,
+    0x76,0x65,0x5f,0x64,0x72,0x61,0x77,0x5f,0x74,0x65,0x78,0x74,0x5f,0x66,0x73,0x5f,
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+    0x0a,0x20,0x20,0x20,0x20,0x69,0x66,0x20,0x28,0x75,0x69,0x6e,0x74,0x28,0x5f,0x33,
+    0x31,0x2e,0x64,0x6f,0x77,0x6e,0x5f,0x73,0x61,0x6d,0x70,0x6c,0x65,0x29,0x20,0x3d,
+    0x3d,0x20,0x31,0x75,0x29,0x0a,0x20,0x20,0x20,0x20,0x7b,0x0a,0x20,0x20,0x20,0x20,
+    0x20,0x20,0x20,0x20,0x61,0x6c,0x70,0x68,0x61,0x20,0x3d,0x20,0x30,0x2e,0x32,0x35,
+    0x20,0x2a,0x20,0x28,0x28,0x28,0x74,0x65,0x78,0x74,0x75,0x72,0x65,0x28,0x76,0x65,
+    0x5f,0x64,0x72,0x61,0x77,0x5f,0x74,0x65,0x78,0x74,0x5f,0x73,0x72,0x63,0x5f,0x74,
+    0x65,0x78,0x74,0x75,0x72,0x65,0x5f,0x76,0x65,0x5f,0x64,0x72,0x61,0x77,0x5f,0x74,
+    0x65,0x78,0x74,0x5f,0x73,0x72,0x63,0x5f,0x73,0x61,0x6d,0x70,0x6c,0x65,0x72,0x2c,
+    0x20,0x75,0x76,0x20,0x2b,0x20,0x76,0x65,0x63,0x32,0x28,0x2d,0x30,0x2e,0x30,0x30,
+    0x30,0x32,0x34,0x34,0x31,0x34,0x30,0x36,0x32,0x35,0x2c,0x20,0x2d,0x30,0x2e,0x30,
+    0x30,0x30,0x39,0x37,0x36,0x35,0x36,0x32,0x35,0x29,0x29,0x2e,0x78,0x20,0x2b,0x20,
+    0x74,0x65,0x78,0x74,0x75,0x72,0x65,0x28,0x76,0x65,0x5f,0x64,0x72,0x61,0x77,0x5f,
+    0x74,0x65,0x78,0x74,0x5f,0x73,0x72,0x63,0x5f,0x74,0x65,0x78,0x74,0x75,0x72,0x65,
+    0x5f,0x76,0x65,0x5f,0x64,0x72,0x61,0x77,0x5f,0x74,0x65,0x78,0x74,0x5f,0x73,0x72,
+    0x63,0x5f,0x73,0x61,0x6d,0x70,0x6c,0x65,0x72,0x2c,0x20,0x75,0x76,0x20,0x2b,0x20,
+    0x76,0x65,0x63,0x32,0x28,0x2d,0x30,0x2e,0x30,0x30,0x30,0x32,0x34,0x34,0x31,0x34,
+    0x30,0x36,0x32,0x35,0x2c,0x20,0x30,0x2e,0x30,0x30,0x30,0x39,0x37,0x36,0x35,0x36,
+    0x32,0x35,0x29,0x29,0x2e,0x78,0x29,0x20,0x2b,0x20,0x74,0x65,0x78,0x74,0x75,0x72,
+    0x65,0x28,0x76,0x65,0x5f,0x64,0x72,0x61,0x77,0x5f,0x74,0x65,0x78,0x74,0x5f,0x73,
+    0x72,0x63,0x5f,0x74,0x65,0x78,0x74,0x75,0x72,0x65,0x5f,0x76,0x65,0x5f,0x64,0x72,
+    0x61,0x77,0x5f,0x74,0x65,0x78,0x74,0x5f,0x73,0x72,0x63,0x5f,0x73,0x61,0x6d,0x70,
+    0x6c,0x65,0x72,0x2c,0x20,0x75,0x76,0x20,0x2b,0x20,0x76,0x65,0x63,0x32,0x28,0x30,
+    0x2e,0x30,0x30,0x30,0x32,0x34,0x34,0x31,0x34,0x30,0x36,0x32,0x35,0x2c,0x20,0x2d,
+    0x30,0x2e,0x30,0x30,0x30,0x39,0x37,0x36,0x35,0x36,0x32,0x35,0x29,0x29,0x2e,0x78,
+    0x29,0x20,0x2b,0x20,0x74,0x65,0x78,0x74,0x75,0x72,0x65,0x28,0x76,0x65,0x5f,0x64,
+    0x72,0x61,0x77,0x5f,0x74,0x65,0x78,0x74,0x5f,0x73,0x72,0x63,0x5f,0x74,0x65,0x78,
+    0x74,0x75,0x72,0x65,0x5f,0x76,0x65,0x5f,0x64,0x72,0x61,0x77,0x5f,0x74,0x65,0x78,
+    0x74,0x5f,0x73,0x72,0x63,0x5f,0x73,0x61,0x6d,0x70,0x6c,0x65,0x72,0x2c,0x20,0x75,
+    0x76,0x20,0x2b,0x20,0x76,0x65,0x63,0x32,0x28,0x30,0x2e,0x30,0x30,0x30,0x32,0x34,
+    0x34,0x31,0x34,0x30,0x36,0x32,0x35,0x2c,0x20,0x30,0x2e,0x30,0x30,0x30,0x39,0x37,
+    0x36,0x35,0x36,0x32,0x35,0x29,0x29,0x2e,0x78,0x29,0x3b,0x0a,0x20,0x20,0x20,0x20,
+    0x7d,0x0a,0x20,0x20,0x20,0x20,0x66,0x72,0x61,0x67,0x5f,0x63,0x6f,0x6c,0x6f,0x72,
+    0x20,0x3d,0x20,0x76,0x65,0x63,0x34,0x28,0x5f,0x33,0x31,0x2e,0x63,0x6f,0x6c,0x6f,
+    0x75,0x72,0x2e,0x78,0x79,0x7a,0x2c,0x20,0x5f,0x33,0x31,0x2e,0x63,0x6f,0x6c,0x6f,
+    0x75,0x72,0x2e,0x77,0x20,0x2a,0x20,0x61,0x6c,0x70,0x68,0x61,0x29,0x3b,0x0a,0x7d,
+    0x0a,0x0a,0x00,
+}
 /*
     static float4 gl_Position;
     static float2 uv;
@@ -257,6 +378,31 @@ ve_draw_text_shader_desc :: proc (backend: sg.Backend) -> sg.Shader_Desc {
     desc: sg.Shader_Desc
     desc.label = "ve_draw_text_shader"
     #partial switch backend {
+    case .GLCORE:
+        desc.attrs[0].name = "v_position"
+        desc.attrs[1].name = "v_texture"
+        desc.vs.source = transmute(cstring)&ve_draw_text_vs_source_glsl410
+        desc.vs.entry = "main"
+        desc.fs.source = transmute(cstring)&ve_draw_text_fs_source_glsl410
+        desc.fs.entry = "main"
+        desc.fs.uniform_blocks[0].size = 32
+        desc.fs.uniform_blocks[0].layout = .STD140
+        desc.fs.uniform_blocks[0].uniforms[0].name = "_31.down_sample"
+        desc.fs.uniform_blocks[0].uniforms[0].type = .INT
+        // array_count = desc.fs.uniform_blocks[0].uniforms[0]
+        desc.fs.uniform_blocks[0].uniforms[1].name = "_31.colour"
+        desc.fs.uniform_blocks[0].uniforms[1].type = .FLOAT4
+        // array_count = desc.fs.uniform_blocks[0].uniforms[1]
+        desc.fs.images[0].used = true
+        desc.fs.images[0].multisampled = false
+        desc.fs.images[0].image_type = ._2D
+        desc.fs.images[0].sample_type = .FLOAT
+        desc.fs.samplers[0].used = true
+        desc.fs.samplers[0].sampler_type = .FILTERING
+        desc.fs.image_sampler_pairs[0].used = true
+        desc.fs.image_sampler_pairs[0].image_slot = 0
+        desc.fs.image_sampler_pairs[0].sampler_slot = 0
+        desc.fs.image_sampler_pairs[0].glsl_name = "ve_draw_text_src_texture_ve_draw_text_src_sampler"
     case .D3D11:
         desc.attrs[0].sem_name = "TEXCOORD"
         desc.attrs[0].sem_index = 0
diff --git a/code/sectr/shaders/ve_render_glyph.odin b/code/sectr/shaders/ve_render_glyph.odin
index 7c8e5ae..9fd0aef 100644
--- a/code/sectr/shaders/ve_render_glyph.odin
+++ b/code/sectr/shaders/ve_render_glyph.odin
@@ -6,7 +6,7 @@ import sg "thirdparty:sokol/gfx"
     Generated by sokol-shdc (https://github.com/floooh/sokol-tools)
 
     Cmdline:
-        sokol-shdc --input C:\projects\SectrPrototype\code\sectr\shaders\ve_render_glyph.shdc.glsl --output C:\projects\SectrPrototype\code\sectr\shaders\ve_render_glyph.odin --slang hlsl5 --format=sokol_odin --module =vefc_render_glyph
+        sokol-shdc --input C:\projects\SectrPrototype\code\sectr\shaders\ve_render_glyph.shdc.glsl --output C:\projects\SectrPrototype\code\sectr\shaders\ve_render_glyph.odin --slang glsl410:hlsl5 --format=sokol_odin --module =vefc_render_glyph
 
     Overview:
     =========
@@ -20,6 +20,61 @@ import sg "thirdparty:sokol/gfx"
 */
 ATTR_ve_render_glyph_vs_v_position :: 0
 ATTR_ve_render_glyph_vs_v_texture :: 1
+/*
+    #version 410
+
+    layout(location = 0) out vec2 uv;
+    layout(location = 1) in vec2 v_texture;
+    layout(location = 0) in vec2 v_position;
+
+    void main()
+    {
+        uv = v_texture;
+        gl_Position = vec4(v_position, 0.0, 1.0);
+    }
+
+*/
+@(private)
+ve_render_glyph_vs_source_glsl410 := [214]u8 {
+    0x23,0x76,0x65,0x72,0x73,0x69,0x6f,0x6e,0x20,0x34,0x31,0x30,0x0a,0x0a,0x6c,0x61,
+    0x79,0x6f,0x75,0x74,0x28,0x6c,0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,
+    0x30,0x29,0x20,0x6f,0x75,0x74,0x20,0x76,0x65,0x63,0x32,0x20,0x75,0x76,0x3b,0x0a,
+    0x6c,0x61,0x79,0x6f,0x75,0x74,0x28,0x6c,0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,
+    0x3d,0x20,0x31,0x29,0x20,0x69,0x6e,0x20,0x76,0x65,0x63,0x32,0x20,0x76,0x5f,0x74,
+    0x65,0x78,0x74,0x75,0x72,0x65,0x3b,0x0a,0x6c,0x61,0x79,0x6f,0x75,0x74,0x28,0x6c,
+    0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,0x30,0x29,0x20,0x69,0x6e,0x20,
+    0x76,0x65,0x63,0x32,0x20,0x76,0x5f,0x70,0x6f,0x73,0x69,0x74,0x69,0x6f,0x6e,0x3b,
+    0x0a,0x0a,0x76,0x6f,0x69,0x64,0x20,0x6d,0x61,0x69,0x6e,0x28,0x29,0x0a,0x7b,0x0a,
+    0x20,0x20,0x20,0x20,0x75,0x76,0x20,0x3d,0x20,0x76,0x5f,0x74,0x65,0x78,0x74,0x75,
+    0x72,0x65,0x3b,0x0a,0x20,0x20,0x20,0x20,0x67,0x6c,0x5f,0x50,0x6f,0x73,0x69,0x74,
+    0x69,0x6f,0x6e,0x20,0x3d,0x20,0x76,0x65,0x63,0x34,0x28,0x76,0x5f,0x70,0x6f,0x73,
+    0x69,0x74,0x69,0x6f,0x6e,0x2c,0x20,0x30,0x2e,0x30,0x2c,0x20,0x31,0x2e,0x30,0x29,
+    0x3b,0x0a,0x7d,0x0a,0x0a,0x00,
+}
+/*
+    #version 410
+
+    layout(location = 0) out vec4 frag_color;
+    layout(location = 0) in vec2 uv;
+
+    void main()
+    {
+        frag_color = vec4(1.0);
+    }
+
+*/
+@(private)
+ve_render_glyph_fs_source_glsl410 := [136]u8 {
+    0x23,0x76,0x65,0x72,0x73,0x69,0x6f,0x6e,0x20,0x34,0x31,0x30,0x0a,0x0a,0x6c,0x61,
+    0x79,0x6f,0x75,0x74,0x28,0x6c,0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,
+    0x30,0x29,0x20,0x6f,0x75,0x74,0x20,0x76,0x65,0x63,0x34,0x20,0x66,0x72,0x61,0x67,
+    0x5f,0x63,0x6f,0x6c,0x6f,0x72,0x3b,0x0a,0x6c,0x61,0x79,0x6f,0x75,0x74,0x28,0x6c,
+    0x6f,0x63,0x61,0x74,0x69,0x6f,0x6e,0x20,0x3d,0x20,0x30,0x29,0x20,0x69,0x6e,0x20,
+    0x76,0x65,0x63,0x32,0x20,0x75,0x76,0x3b,0x0a,0x0a,0x76,0x6f,0x69,0x64,0x20,0x6d,
+    0x61,0x69,0x6e,0x28,0x29,0x0a,0x7b,0x0a,0x20,0x20,0x20,0x20,0x66,0x72,0x61,0x67,
+    0x5f,0x63,0x6f,0x6c,0x6f,0x72,0x20,0x3d,0x20,0x76,0x65,0x63,0x34,0x28,0x31,0x2e,
+    0x30,0x29,0x3b,0x0a,0x7d,0x0a,0x0a,0x00,
+}
 /*
     static float4 gl_Position;
     static float2 uv;
@@ -163,6 +218,13 @@ ve_render_glyph_shader_desc :: proc (backend: sg.Backend) -> sg.Shader_Desc {
     desc: sg.Shader_Desc
     desc.label = "ve_render_glyph_shader"
     #partial switch backend {
+    case .GLCORE:
+        desc.attrs[0].name = "v_position"
+        desc.attrs[1].name = "v_texture"
+        desc.vs.source = transmute(cstring)&ve_render_glyph_vs_source_glsl410
+        desc.vs.entry = "main"
+        desc.fs.source = transmute(cstring)&ve_render_glyph_fs_source_glsl410
+        desc.fs.entry = "main"
     case .D3D11:
         desc.attrs[0].sem_name = "TEXCOORD"
         desc.attrs[0].sem_index = 0
diff --git a/scripts/compile_shaders.ps1 b/scripts/compile_shaders.ps1
index 1946053..b0ed0e5 100644
--- a/scripts/compile_shaders.ps1
+++ b/scripts/compile_shaders.ps1
@@ -32,8 +32,8 @@ $flag_format_odin = '--format=sokol_odin'
 $flag_module      = '--module'
 
 push-location $path_shaders
-& $sokol_shdc --input $shadersrc_simple_font_glyph --output $shaderout_simple_font_glyph --slang 'hlsl5' $flag_format_odin
-& $sokol_shdc --input $shadersrc_ve_blit_atlas     --output $shaderout_ve_blit_atlas     --slang 'hlsl5' $flag_format_odin $flag_module='vefc_blit_atlas'
-& $sokol_shdc --input $shadersrc_ve_render_glyph   --output $shaderout_ve_render_glyph   --slang 'hlsl5' $flag_format_odin $flag_module='vefc_render_glyph'
-& $sokol_shdc --input $shadersrc_ve_draw_text      --output $shaderout_ve_draw_text      --slang 'hlsl5' $flag_format_odin $flag_module='vefc_draw_text'
+& $sokol_shdc --input $shadersrc_simple_font_glyph --output $shaderout_simple_font_glyph --slang 'glsl410:hlsl5' $flag_format_odin
+& $sokol_shdc --input $shadersrc_ve_blit_atlas     --output $shaderout_ve_blit_atlas     --slang 'glsl410:hlsl5' $flag_format_odin $flag_module='vefc_blit_atlas'
+& $sokol_shdc --input $shadersrc_ve_render_glyph   --output $shaderout_ve_render_glyph   --slang 'glsl410:hlsl5' $flag_format_odin $flag_module='vefc_render_glyph'
+& $sokol_shdc --input $shadersrc_ve_draw_text      --output $shaderout_ve_draw_text      --slang 'glsl410:hlsl5' $flag_format_odin $flag_module='vefc_draw_text'
 pop-location