From 8e337db1e5fa2716eb99bb395c3082926779e328 Mon Sep 17 00:00:00 2001
From: John Alanbrook <john@pockle.world>
Date: Tue, 23 Apr 2024 15:58:08 -0500
Subject: [PATCH] Sprite rendered quad

---
 scripts/engine.js               |  12 ++++
 source/engine/3d/model.c        |  21 +++---
 source/engine/HandmadeMath.h    |   1 +
 source/engine/debug/debugdraw.c |   4 +-
 source/engine/font.c            |  64 +++++++-----------
 source/engine/jsffi.c           |  11 ++-
 source/engine/particle.c        |  33 +++++----
 source/engine/particle.h        |   2 +-
 source/engine/render.c          |  21 +++++-
 source/engine/render.h          |   3 +
 source/engine/sprite.c          | 116 +++++++++++++++-----------------
 source/engine/sprite.h          |  17 +++--
 source/engine/transform.c       |   9 +++
 source/engine/transform.h       |   2 +
 source/shaders/sprite.sglsl     |  27 ++++++--
 source/shaders/text.sglsl       |   1 +
 source/shaders/unlit.sglsl      |  12 ++--
 17 files changed, 203 insertions(+), 153 deletions(-)

diff --git a/scripts/engine.js b/scripts/engine.js
index 2273f54..abf01f3 100644
--- a/scripts/engine.js
+++ b/scripts/engine.js
@@ -301,9 +301,11 @@ game.engine_start = function(s) {
 }
 
 game.startengine = 0;
+var frames = [];
 
 function process()
 {
+  var startframe = profile.now();
   var dt = profile.secs(profile.now()) - frame_t;
   frame_t = profile.secs(profile.now());
   
@@ -357,6 +359,16 @@ function process()
   
   render.end_pass();
   profile.addreport(profcache, "render frame", st);
+  frames.push(profile.secs(profile.now()-startframe));
+  if (frames.length > 20) frames.shift();
+}
+
+globalThis.fps = function()
+{
+  var sum = 0;
+  for (var i = 0; i < frames.length; i++)
+    sum += frames[i];
+  return frames.length/sum; 
 }
 
 game.timescale = 1;
diff --git a/source/engine/3d/model.c b/source/engine/3d/model.c
index c62eced..986621c 100644
--- a/source/engine/3d/model.c
+++ b/source/engine/3d/model.c
@@ -57,6 +57,8 @@ void model_init() {
         [0].format = SG_VERTEXFORMAT_FLOAT3,
 	      [1].format = SG_VERTEXFORMAT_USHORT2N,
 	      [1].buffer_index = 1,
+        [2].format = SG_VERTEXFORMAT_FLOAT3,
+        [2].buffer_index = 2
       },
     },
     .index_type = SG_INDEXTYPE_UINT16,
@@ -112,14 +114,8 @@ void mesh_add_material(mesh *mesh, cgltf_material *mat)
        mesh->bind.fs.images[0] = texture_from_file(img->uri)->id;
    } else
      mesh->bind.fs.images[0] = texture_from_file("icons/moon.gif")->id; 
-     
-   mesh->bind.fs.samplers[0] = sg_make_sampler(&(sg_sampler_desc){});
-/*     
-     cgltf_texture *tex;
-     if (tex = mat->normal_texture.texture)
-       mesh->bind.fs.images[1] = texture_from_file(tex->image->uri)->id;
-     else
-       mesh->bind.fs.images[1] = texture_from_file("k")->id;*/
+    
+   mesh->bind.fs.samplers[0] = std_sampler;
 }
 
 sg_buffer texcoord_floats(float *f, int verts, int comp)
@@ -187,6 +183,7 @@ void mesh_add_primitive(mesh *mesh, cgltf_primitive *prim)
   }
   free(idxs);
 
+  printf("adding material\n");
   mesh_add_material(mesh, prim->material);
   int has_norm = 0;  
 
@@ -209,8 +206,8 @@ void mesh_add_primitive(mesh *mesh, cgltf_primitive *prim)
       break;
 
     case cgltf_attribute_type_normal:
-//      has_norm = 1;
-//      mesh->bind.vertex_buffers[2] = normal_floats(vs, verts, comp);
+      has_norm = 1;
+      mesh->bind.vertex_buffers[2] = normal_floats(vs, verts, comp);
       break;
 
     case cgltf_attribute_type_tangent:
@@ -238,7 +235,7 @@ void mesh_add_primitive(mesh *mesh, cgltf_primitive *prim)
       break;
     }
   }
-/*
+
   if (!has_norm) {
     cgltf_attribute *pa = get_attr_type(prim, cgltf_attribute_type_position);
     int n = cgltf_accessor_unpack_floats(pa->data, NULL,0);
@@ -260,7 +257,7 @@ void mesh_add_primitive(mesh *mesh, cgltf_primitive *prim)
      mesh->bind.vertex_buffers[2] = sg_make_buffer(&(sg_buffer_desc){
        .data.ptr = face_norms,
        .data.size = sizeof(uint32_t) * verts});
-  }*/
+  }
 }
 
 void model_add_cgltf_mesh(model *model, cgltf_mesh *gltf_mesh)
diff --git a/source/engine/HandmadeMath.h b/source/engine/HandmadeMath.h
index 588bc37..07cddfa 100644
--- a/source/engine/HandmadeMath.h
+++ b/source/engine/HandmadeMath.h
@@ -221,6 +221,7 @@ typedef union HMM_Vec2 {
 } HMM_Vec2;
 
 static const HMM_Vec2 v2zero = {0,0};
+static const HMM_Vec2 v2one = {1,1};
 
 typedef union HMM_Vec3 {
   struct
diff --git a/source/engine/debug/debugdraw.c b/source/engine/debug/debugdraw.c
index a1032e5..271b043 100644
--- a/source/engine/debug/debugdraw.c
+++ b/source/engine/debug/debugdraw.c
@@ -285,7 +285,7 @@ void debugdraw_init()
     .label = "circle vert buffer",
   });
 
-  float circleverts[8] = {
+  float circleverts[] = {
     -1,-1,
     -1,1,
     1,-1,
@@ -293,7 +293,7 @@ void debugdraw_init()
   };
 
   circle_bind.vertex_buffers[1] = sg_make_buffer(&(sg_buffer_desc){
-    .data = (sg_range){.ptr = circleverts, .size = sizeof(float)*8},
+    .data = (sg_range){.ptr = circleverts, .size = sizeof(circleverts)},
     .usage = SG_USAGE_IMMUTABLE,
     .label = "circle quarter buffer",
   });
diff --git a/source/engine/font.c b/source/engine/font.c
index 802226e..3670973 100644
--- a/source/engine/font.c
+++ b/source/engine/font.c
@@ -22,8 +22,6 @@
 
 struct sFont *use_font;
 
-#define max_chars 100000
-
 static sg_shader fontshader;
 static sg_bindings bind_text;
 static sg_pipeline pipe_text;
@@ -38,19 +36,18 @@ struct text_vert {
 static struct text_vert *text_buffer;
 
 void font_init() {
-  text_buffer = malloc(sizeof(*text_buffer)*max_chars);
   fontshader = sg_make_shader(text_shader_desc(sg_query_backend()));
   pipe_text = sg_make_pipeline(&(sg_pipeline_desc){
       .shader = fontshader,
       .layout = {
           .attrs = {
-            [0].format = SG_VERTEXFORMAT_FLOAT2, /* verts */
-            [0].buffer_index = 1,
-            [1].format = SG_VERTEXFORMAT_FLOAT2, /* pos */
-            [2].format = SG_VERTEXFORMAT_FLOAT2, /* width and height */
-            [3].format = SG_VERTEXFORMAT_USHORT2N, /* uv pos */
-            [4].format = SG_VERTEXFORMAT_USHORT2N, /* uv width and height */
-            [5].format = SG_VERTEXFORMAT_UBYTE4N, /* color */
+            [ATTR_vs_vert].format = SG_VERTEXFORMAT_FLOAT2,
+            [ATTR_vs_vert].buffer_index = 1,
+            [ATTR_vs_pos].format = SG_VERTEXFORMAT_FLOAT2,
+            [ATTR_vs_wh].format = SG_VERTEXFORMAT_FLOAT2,
+            [ATTR_vs_uv].format = SG_VERTEXFORMAT_USHORT2N,
+            [ATTR_vs_st].format = SG_VERTEXFORMAT_USHORT2N,
+            [ATTR_vs_vColor].format = SG_VERTEXFORMAT_UBYTE4N,
           },
 	      .buffers[0].step_func = SG_VERTEXSTEP_PER_INSTANCE
       },
@@ -59,27 +56,16 @@ void font_init() {
       .label = "text",
     });
     
-  float text_verts[8] = {
-    0,0,
-    0,1,
-    1,0,
-    1,1
-  };
-    
-  bind_text.vertex_buffers[1] = sg_make_buffer(&(sg_buffer_desc){
-    .data = SG_RANGE(text_verts),
-    .usage = SG_USAGE_IMMUTABLE,
-    .label = "text rectangle buffer",
-  });
-
+  bind_text.vertex_buffers[1] = sprite_quad;
+  
   bind_text.vertex_buffers[0] = sg_make_buffer(&(sg_buffer_desc){
-      .size = sizeof(struct text_vert)*max_chars,
+      .size = sizeof(struct text_vert),
       .type = SG_BUFFERTYPE_VERTEXBUFFER,
       .usage = SG_USAGE_STREAM,
       .label = "text buffer"
     });
 
-  bind_text.fs.samplers[0] = sg_make_sampler(&(sg_sampler_desc){});
+  bind_text.fs.samplers[0] = std_sampler;
 }
 
 void font_free(font *f)
@@ -192,8 +178,6 @@ struct sFont *MakeFont(const char *fontfile, int height) {
   return newfont;
 }
 
-static int curchar = 0;
-
 void draw_underline_cursor(HMM_Vec2 pos, float scale, struct rgba color)
 {
   pos.Y -= 2;
@@ -218,24 +202,29 @@ void draw_char_box(struct Character c, HMM_Vec2 cursor, float scale, struct rgba
 }
 
 void text_flush(HMM_Mat4 *proj) {
-  if (curchar == 0) return;
+  if (arrlen(text_buffer) ==  0) return;
+
   sg_range verts;
   verts.ptr = text_buffer;
-  verts.size = sizeof(struct text_vert) * curchar;
-  int offset = sg_append_buffer(bind_text.vertex_buffers[0], &verts);
+  verts.size = sizeof(struct text_vert) * arrlen(text_buffer);
+  if (sg_query_buffer_will_overflow(bind_text.vertex_buffers[0], verts.size))
+    bind_text.vertex_buffers[0] = sg_make_buffer(&(sg_buffer_desc){
+      .size = verts.size,
+      .type = SG_BUFFERTYPE_VERTEXBUFFER,
+      .usage = SG_USAGE_STREAM,
+      .label = "text buffer"
+    });
+    
+  sg_append_buffer(bind_text.vertex_buffers[0], &verts);
   
-  bind_text.vertex_buffer_offsets[0] = offset;
   sg_apply_pipeline(pipe_text);
   sg_apply_bindings(&bind_text);
   sg_apply_uniforms(SG_SHADERSTAGE_VS, 0, SG_RANGE_REF(*proj));
-  sg_draw(0, 4, curchar);
-  curchar = 0;
+  sg_draw(0, 4, arrlen(text_buffer));
+  arrsetlen(text_buffer, 0);
 }
 
 void sdrawCharacter(struct Character c, HMM_Vec2 cursor, float scale, struct rgba color) {
-  if (curchar-10 >=  max_chars)
-    return;
-
   struct rgba colorbox = {0,0,0,255};
   
   struct text_vert vert;
@@ -255,8 +244,7 @@ void sdrawCharacter(struct Character c, HMM_Vec2 cursor, float scale, struct rgb
   vert.st.v = c.rect.h*USHRT_MAX;
   vert.color = color;
 
-  memcpy(text_buffer + curchar, &vert, sizeof(struct text_vert));
-  curchar++;
+  arrput(text_buffer, vert);
 }
 
 const char *esc_color(const char *c, struct rgba *color, struct rgba defc)
diff --git a/source/engine/jsffi.c b/source/engine/jsffi.c
index e120969..e6d3f8d 100644
--- a/source/engine/jsffi.c
+++ b/source/engine/jsffi.c
@@ -569,7 +569,6 @@ JSC_GETSET(emitter, grow_for, number)
 JSC_GETSET(emitter, shrink_for, number)
 JSC_GETSET(emitter, max, number)
 JSC_GETSET(emitter, explosiveness, number)
-JSC_GETSET(emitter, go, gameobject)
 JSC_GETSET(emitter, bounce, number)
 JSC_GETSET(emitter, collision_mask, bitmask)
 JSC_GETSET(emitter, die_after_collision, boolean)
@@ -611,7 +610,6 @@ JSC_CCALL(render_end_pass,
   sg_end_pass();
   sg_commit();
   debug_newframe();
-  sprite_newframe();
 )
 JSC_SCALL(render_text_size, ret = bb2js(text_bb(str, js2number(argv[1]), js2number(argv[2]), 1)))
 JSC_CCALL(render_set_camera, useproj = projection)
@@ -1055,7 +1053,6 @@ static const JSCFunctionListEntry js_emitter_funcs[] = {
   CGETSET_ADD(emitter, shrink_for),
   CGETSET_ADD(emitter, max),
   CGETSET_ADD(emitter, explosiveness),
-  CGETSET_ADD(emitter, go),
   CGETSET_ADD(emitter, bounce),
   CGETSET_ADD(emitter, collision_mask),
   CGETSET_ADD(emitter, die_after_collision),
@@ -1320,11 +1317,11 @@ static const JSCFunctionListEntry js_pshape_funcs[] = {
 
 JSC_GETSET(sprite, color, color)
 JSC_GETSET(sprite, emissive, color)
-JSC_GETSET(sprite, parallax, number)
 JSC_GETSET(sprite, pos, vec2)
 JSC_GETSET(sprite, scale, vec2)
 JSC_GETSET(sprite, angle, number)
-JSC_GETSET(sprite, frame, rect)
+JSC_GETSET(sprite, spriteoffset, vec2)
+JSC_GETSET(sprite, spritesize, vec2)
 JSC_CCALL(sprite_draw, sprite_draw(js2sprite(this), js2gameobject(argv[0])))
 
 static const JSCFunctionListEntry js_sprite_funcs[] = {
@@ -1333,8 +1330,8 @@ static const JSCFunctionListEntry js_sprite_funcs[] = {
   CGETSET_ADD(sprite,angle),
   CGETSET_ADD(sprite,color),
   CGETSET_ADD(sprite,emissive),
-  CGETSET_ADD(sprite,parallax),
-  CGETSET_ADD(sprite,frame),
+  CGETSET_ADD(sprite, spriteoffset),
+  CGETSET_ADD(sprite, spritesize),
   MIST_FUNC_DEF(sprite, draw, 1)
 };
 
diff --git a/source/engine/particle.c b/source/engine/particle.c
index fdf380c..b87b7ea 100644
--- a/source/engine/particle.c
+++ b/source/engine/particle.c
@@ -46,11 +46,11 @@ void particle_init()
     .layout = {
       .attrs = {
         [1].format = SG_VERTEXFORMAT_FLOAT2,
-	[2].format = SG_VERTEXFORMAT_FLOAT,
-	[3].format = SG_VERTEXFORMAT_FLOAT2,
-	[4].format = SG_VERTEXFORMAT_UBYTE4N,
-	[0].format = SG_VERTEXFORMAT_FLOAT2,
-	[0].buffer_index = 1
+	      [2].format = SG_VERTEXFORMAT_FLOAT,
+	      [3].format = SG_VERTEXFORMAT_FLOAT2,
+	      [4].format = SG_VERTEXFORMAT_UBYTE4N,
+	      [0].format = SG_VERTEXFORMAT_FLOAT2,
+	      [0].buffer_index = 1
       },
     .buffers[0].step_func = SG_VERTEXSTEP_PER_INSTANCE,
     },
@@ -78,13 +78,8 @@ void particle_init()
     1,1,
   };
 
-  par_bind.vertex_buffers[1] = sg_make_buffer(&(sg_buffer_desc){
-    .data = (sg_range){.ptr = circleverts, .size = sizeof(float)*8},
-    .usage = SG_USAGE_IMMUTABLE,
-    .label = "particle quater buffer"
-  });
-
-  par_bind.fs.samplers[0] = sg_make_sampler(&(sg_sampler_desc){});
+  par_bind.vertex_buffers[1] = sprite_quad;
+  par_bind.fs.samplers[0] = std_sampler;
 }
 
 emitter *make_emitter() {
@@ -172,6 +167,20 @@ void parallel_pv(emitter *e, struct scheduler *sched, struct sched_task_partitio
   }
 }
 
+void emitter_draw(emitter *e, gameobject *go)
+{
+  sg_apply_pipeline(par_pipe);
+  sg_apply_uniforms(SG_SHADERSTAGE_VS, 0, SG_RANGE_REF(useproj));
+  sg_apply_bindings(&par_bind);
+  par_bind.fs.images[0] = e->texture->id;
+  struct sched_task task;
+  scheduler_add(&sched, &task, parallel_pv, e, arrlen(e->particles), arrlen(e->particles)/sched.threads_num);
+  scheduler_join(&sched, &task);
+  sg_append_buffer(par_bind.vertex_buffers[0], &(sg_range){.ptr=&pv, .size=sizeof(struct par_vert)*arrlen(e->particles)});
+  draw_count += arrlen(e->particles);
+  sg_draw(0,4,draw_count);
+}
+
 void emitters_draw(HMM_Mat4 *proj)
 {
   if (arrlen(emitters) == 0) return;
diff --git a/source/engine/particle.h b/source/engine/particle.h
index fbc000f..55ebfa1 100644
--- a/source/engine/particle.h
+++ b/source/engine/particle.h
@@ -26,7 +26,6 @@ typedef struct particle {
 typedef struct emitter {
   struct particle *particles;
   transform3d t;
-  gameobject *go;
   HMM_Vec3 *mesh; /* list of points to optionally spawn from */
   HMM_Vec3 *norm; /* norm at each point */
   int type; /* spray, cloud, or mesh */
@@ -70,6 +69,7 @@ void stop_emitter(emitter *e);
 
 void emitter_emit(emitter *e, int count);
 void emitters_step(double dt);
+void emitter_draw(emitter *e, gameobject *go);
 void emitters_draw(HMM_Mat4 *proj);
 void emitter_step(emitter *e, double dt);
 
diff --git a/source/engine/render.c b/source/engine/render.c
index e01e4c8..2556897 100644
--- a/source/engine/render.c
+++ b/source/engine/render.c
@@ -31,6 +31,9 @@
 HMM_Vec2 campos = {0,0};
 float camzoom = 1;
 
+sg_buffer sprite_quad;
+sg_sampler std_sampler;
+
 static struct {
   sg_swapchain swap;
   sg_pipeline pipe;
@@ -223,6 +226,22 @@ void render_init() {
     .logger = { .func = sg_logging },
     .buffer_pool_size = 1024
   });
+    
+  float quad[] = {
+  0,0,
+  1,0,
+  0,1,
+  1,1
+  };
+  
+  sprite_quad = sg_make_buffer(&(sg_buffer_desc){
+    .data = quad,
+    .size = sizeof(quad),
+    .usage = SG_USAGE_IMMUTABLE,
+    .label = "sprite quad"
+  });
+  
+  std_sampler = sg_make_sampler(&(sg_sampler_desc){});
 
 #ifndef NDEBUG
   sg_trace_hooks hh = sg_install_trace_hooks(&hooks);
@@ -276,7 +295,7 @@ void render_init() {
     .data = gif_quad,
     .label = "gif vert buffer",
   });
-  sg_gif.bind.fs.samplers[0] = sg_make_sampler(&(sg_sampler_desc){});
+  sg_gif.bind.fs.samplers[0] = std_sampler;
   
   sg_crt.shader = sg_make_shader(crt_shader_desc(sg_query_backend()));
   sg_crt.pipe = sg_make_pipeline(&(sg_pipeline_desc){
diff --git a/source/engine/render.h b/source/engine/render.h
index fe577b4..84e7c82 100644
--- a/source/engine/render.h
+++ b/source/engine/render.h
@@ -32,6 +32,9 @@ extern HMM_Mat4 hudproj;
 extern HMM_Mat4 useproj;
 extern sg_pass_action pass_action;
 
+extern sg_buffer sprite_quad;
+extern sg_sampler std_sampler;
+
 struct draw_p {
   float x;
   float y;
diff --git a/source/engine/sprite.c b/source/engine/sprite.c
index 2953b82..91e2c5e 100644
--- a/source/engine/sprite.c
+++ b/source/engine/sprite.c
@@ -14,24 +14,10 @@ static sg_shader shader_sprite;
 static sg_pipeline pip_sprite;
 sg_bindings bind_sprite;
 
-struct sprite_vert {
-  HMM_Vec2 pos;
-  HMM_Vec2 uv;
-  struct rgba color;
-  struct rgba emissive;
-};
-
-static int num_spriteverts = 5000;
-
 static sg_shader slice9_shader;
 static sg_pipeline slice9_pipe;
 static sg_bindings slice9_bind;
-static float slice9_points[8] = {
-  0.0, 0.0,
-  0.0, 1.0,
-  1.0, 0.0,
-  1.0, 1.0
-};
+
 struct slice9_vert {
   HMM_Vec2 pos;
   struct uv_n uv;
@@ -43,31 +29,45 @@ struct slice9_vert {
 sprite *sprite_make()
 {
   sprite *sp = calloc(sizeof(*sp), 1);
-  sp->pos = (HMM_Vec2){0,0};
-  sp->scale = (HMM_Vec2){1,1};
+  sp->pos = v2zero;
+  sp->scale = v2one;
   sp->angle = 0;
   sp->color = color_white;
   sp->emissive = color_clear;
-  sp->frame = ST_UNIT;
-  sp->parallax = 1;
-  
+  sp->spritesize = v2one;
+  sp->spriteoffset = v2zero;
   return sp;
 }
 
 void sprite_free(sprite *sprite) { free(sprite); }
 
-static int sprite_draws = 0;
-static int sprite_count = 0;
 static texture *loadedtex;
+static int sprite_count = 0;
 
 void sprite_flush() {
+return;
   if (!loadedtex) return;
+/*  
+  int flushed = arrlen(spverts)/4;
   sg_apply_bindings(&bind_sprite);
-  sg_draw(sprite_count * 4, 4, sprite_draws);
-  sprite_count += sprite_draws;
-  sprite_draws = 0;
+  sg_range data = (sg_range){
+    .ptr = spverts,
+    .size = sizeof(sprite_vert)*arrlen(spverts)
+  };
+  if (sg_query_buffer_will_overflow(bind_sprite.vertex_buffers[0], data.size))
+    bind_sprite.vertex_buffers[0] = sg_make_buffer(&(sg_buffer_desc){
+      .size = data.size,
+      .type = SG_BUFFERTYPE_VERTEXBUFFER,
+      .usage = SG_USAGE_STREAM,
+      .label = "sprite vertex buffer"
+    });
+
+  sg_update_buffer(bind_sprite.vertex_buffers[0], &data);
+    
+  sg_draw(sprite_count * 4, 4, flushed);
+  sprite_count += flushed;
+  */
 }
-void sprite_newframe() { sprite_count = 0; sprite_draws = 0;}
 
 void sprite_initialize() {
   shader_sprite = sg_make_shader(sprite_shader_desc(sg_query_backend()));
@@ -76,22 +76,17 @@ void sprite_initialize() {
     .shader = shader_sprite,
     .layout = {
       .attrs = {
-        [0].format = SG_VERTEXFORMAT_FLOAT2,
-        [1].format = SG_VERTEXFORMAT_FLOAT2,
-        [2].format = SG_VERTEXFORMAT_UBYTE4N,
-        [3].format = SG_VERTEXFORMAT_UBYTE4N}},
+        [0].format = SG_VERTEXFORMAT_FLOAT2
+      },
+      .buffers[1].step_func = SG_VERTEXSTEP_PER_INSTANCE
+    },
     .primitive_type = SG_PRIMITIVETYPE_TRIANGLE_STRIP,
     .label = "sprite pipeline",
     .colors[0].blend = blend_trans,
   });
 
-  bind_sprite.vertex_buffers[0] = sg_make_buffer(&(sg_buffer_desc){
-    .size = sizeof(struct sprite_vert) * num_spriteverts,
-    .type = SG_BUFFERTYPE_VERTEXBUFFER,
-    .usage = SG_USAGE_STREAM,
-    .label = "sprite vertex buffer",
-  });
-  bind_sprite.fs.samplers[0] = sg_make_sampler(&(sg_sampler_desc){});
+  bind_sprite.vertex_buffers[0] = sprite_quad;
+  bind_sprite.fs.samplers[0] = std_sampler;
 
   slice9_shader = sg_make_shader(slice9_shader_desc(sg_query_backend()));
 
@@ -108,21 +103,17 @@ void sprite_initialize() {
     .primitive_type = SG_PRIMITIVETYPE_TRIANGLE_STRIP,
   });
 
-  slice9_bind.vertex_buffers[0] = sg_make_buffer(&(sg_buffer_desc){
-    .size = sizeof(struct slice9_vert) * 100,
-    .type = SG_BUFFERTYPE_VERTEXBUFFER,
-    .usage = SG_USAGE_STREAM,
-    .label = "slice9 buffer"
-  });
+  slice9_bind.vertex_buffers[0] = sprite_quad;
 }
 
 void sprite_pipe()
 {
   sg_apply_pipeline(pip_sprite);
-  sg_apply_uniforms(SG_SHADERSTAGE_VS, 0, SG_RANGE_REF(useproj));
+  sg_apply_uniforms(SG_SHADERSTAGE_VS, SLOT_vp, SG_RANGE_REF(useproj));
 }
 
-void tex_draw(HMM_Mat3 m, struct rect r, struct rgba color, int wrap, HMM_Vec2 wrapoffset, HMM_Vec2 wrapscale, struct rgba emissive, float parallax) {
+void tex_draw(HMM_Mat3 m, struct rect r, struct rgba color, int wrap, HMM_Vec2 wrapoffset, HMM_Vec2 wrapscale, struct rgba emissive) {
+  /*
   struct sprite_vert verts[4];
   float w = loadedtex->width*r.w;
   float h = loadedtex->height*r.h;
@@ -134,11 +125,8 @@ void tex_draw(HMM_Mat3 m, struct rect r, struct rgba color, int wrap, HMM_Vec2 w
     {w,h}
   };
 
-  for (int i = 0; i < 4; i++) {
+  for (int i = 0; i < 4; i++)
     verts[i].pos = mat_t_pos(m, sposes[i]);
-    verts[i].color = color;
-    verts[i].emissive = emissive;
-  }
 
   if (wrap) {
     r.w *= wrapscale.x;
@@ -154,15 +142,16 @@ void tex_draw(HMM_Mat3 m, struct rect r, struct rgba color, int wrap, HMM_Vec2 w
   verts[3].uv.X = r.x+r.w;
   verts[3].uv.Y = r.y;
 
-  sg_append_buffer(bind_sprite.vertex_buffers[0], SG_RANGE_REF(verts));
-  sprite_draws++;
+  for (int i = 0; i < 4; i++)
+    arrput(spverts, verts[i]);
+    */
 }
 
 transform2d sprite2t(sprite *s)
 {
   return (transform2d){
     .pos = s->pos,
-    .scale = s->scale,
+    .scale = HMM_MulV2(s->scale, (HMM_Vec2){loadedtex->width, loadedtex->height}),
     .angle = HMM_TurnToRad*s->angle
   };
 }
@@ -174,19 +163,26 @@ void sprite_tex(texture *t)
 }
 
 void sprite_draw(struct sprite *sprite, gameobject *go) {
-  transform2d t = go2t(go);
-  t.pos.x += (campos.x - (campos.x/sprite->parallax));
-  t.pos.y += (campos.y - (campos.y/sprite->parallax));
-  HMM_Mat3 m = transform2d2mat(t);
-  HMM_Mat3 sm = transform2d2mat(sprite2t(sprite));
-  tex_draw(HMM_MulM3(m,sm), sprite->frame, sprite->color, 0, (HMM_Vec2){0,0}, sprite->scale, sprite->emissive, sprite->parallax);
+  HMM_Mat4 m = transform2d2mat4(go2t(go));
+  HMM_Mat4 sm = transform2d2mat4(sprite2t(sprite));
+  struct spriteuni spv;
+  rgba2floats(&spv.color.e, sprite->color);
+  rgba2floats(spv.emissive.e, sprite->emissive);
+  spv.size = sprite->spritesize;
+  spv.offset = sprite->spriteoffset;
+  spv.model = HMM_MulM4(m,sm);
+  sg_apply_pipeline(pip_sprite);
+  sg_apply_uniforms(SG_SHADERSTAGE_VS, SLOT_sprite, SG_RANGE_REF(spv));  
+  sg_apply_uniforms(SG_SHADERSTAGE_VS, SLOT_vp, SG_RANGE_REF(useproj));
+  sg_apply_bindings(&bind_sprite);
+  sg_draw(0,4,1);
 }
 
 void gui_draw_img(texture *tex, transform2d t, int wrap, HMM_Vec2 wrapoffset, float wrapscale, struct rgba color) {
   sg_apply_pipeline(pip_sprite);
-  sg_apply_uniforms(SG_SHADERSTAGE_VS, 0, SG_RANGE_REF(useproj));
+  sg_apply_uniforms(SG_SHADERSTAGE_VS, SLOT_vp, SG_RANGE_REF(useproj));
   sprite_tex(tex);
-  tex_draw(transform2d2mat(t), ST_UNIT, color, wrap, wrapoffset, (HMM_Vec2){wrapscale,wrapscale}, (struct rgba){0,0,0,0}, 0);
+  tex_draw(transform2d2mat(t), ST_UNIT, color, wrap, wrapoffset, (HMM_Vec2){wrapscale,wrapscale}, (struct rgba){0,0,0,0});
 }
 
 void slice9_draw(texture *tex, transform2d *t, HMM_Vec4 border, struct rgba color)
diff --git a/source/engine/sprite.h b/source/engine/sprite.h
index 41bdc33..cb264b0 100644
--- a/source/engine/sprite.h
+++ b/source/engine/sprite.h
@@ -7,18 +7,22 @@
 #include "transform.h"
 #include "gameobject.h"
 
-#define DRAW_SIMPLE 0
-#define DRAW_TILE 1
-
 struct sprite {
   HMM_Vec2 pos;
   HMM_Vec2 scale;
   float angle;
   struct rgba color;
   struct rgba emissive;
-  struct rect frame;
-  int drawmode;
-  float parallax;
+  HMM_Vec2 spritesize;
+  HMM_Vec2 spriteoffset;
+};
+
+struct spriteuni {
+  HMM_Vec4 color;
+  HMM_Vec4 emissive;
+  HMM_Vec2 size;
+  HMM_Vec2 offset;
+  HMM_Mat4 model;
 };
 
 typedef struct sprite sprite;
@@ -33,7 +37,6 @@ void sprite_draw(struct sprite *sprite, gameobject *go);
 void sprite_pipe();
 void sprite_draw_all();
 void sprite_flush();
-void sprite_newframe();
 
 void gui_draw_img(texture *tex, transform2d t, int wrap, HMM_Vec2 wrapoffset, float wrapscale, struct rgba color);
 
diff --git a/source/engine/transform.c b/source/engine/transform.c
index 8a082ec..8f3eacc 100644
--- a/source/engine/transform.c
+++ b/source/engine/transform.c
@@ -40,6 +40,15 @@ HMM_Mat3 transform2d2mat(transform2d trn) {
   return HMM_MulM3(HMM_Translate2D(trn.pos), HMM_MulM3(HMM_RotateM3(trn.angle), HMM_ScaleM3(trn.scale)));
 }
 
+HMM_Mat4 transform2d2mat4(transform2d trn)
+{
+  transform3d t3d;
+  t3d.pos.xy = trn.pos;
+  t3d.scale.xy = trn.scale;
+  t3d.rotation = HMM_QFromAxisAngle_RH((HMM_Vec3){0,0,-1}, trn.angle);
+  return transform3d2mat(t3d);
+}
+
 transform2d mat2transform2d(HMM_Mat3 m)
 {
   transform2d t;
diff --git a/source/engine/transform.h b/source/engine/transform.h
index cb009b7..8f6c29d 100644
--- a/source/engine/transform.h
+++ b/source/engine/transform.h
@@ -27,6 +27,8 @@ HMM_Vec3 trans_down(const transform3d *trans);
 HMM_Vec3 trans_right(const transform3d *trans);
 HMM_Vec3 trans_left(const transform3d *trans);
 
+HMM_Mat4 transform2d2mat4(transform2d trn);
+
 /* Transform a position via the matrix */
 HMM_Vec2 mat_t_pos(HMM_Mat3 m, HMM_Vec2 pos);
 /* Transform a direction via the matrix - does not take into account translation of matrix */
diff --git a/source/shaders/sprite.sglsl b/source/shaders/sprite.sglsl
index 3bc696b..6278523 100644
--- a/source/shaders/sprite.sglsl
+++ b/source/shaders/sprite.sglsl
@@ -1,20 +1,30 @@
 @vs vs
 in vec2 vertex;
-in vec2 uv;
-in vec4 vc;
-in vec4 emissive;
 
 out vec2 texcoords;
 out vec4 fcolor;
 out vec4 femissive;
 
-uniform vs_p { mat4 proj; };
+uniform app {
+  float time;
+  vec2 window;
+};
+
+uniform vp {
+  mat4 proj;
+};
+
+uniform sprite {
+  vec4 vcolor;
+  vec4 vemissive;
+  vec2 spritesize;
+  vec2 spriteoff;
+  mat4 model;
+};
 
 void main()
 {
-  fcolor = vc;
-  femissive = emissive;
-  texcoords = uv;
+  texcoords = spriteoff + spritesize*vertex;
   gl_Position = proj * vec4(vertex, 0, 1.0);
 }
 @end
@@ -23,6 +33,7 @@ void main()
 in vec2 texcoords;
 in vec4 fcolor;
 in vec4 femissive;
+
 out vec4 color;
 
 uniform texture2D image;
@@ -33,6 +44,8 @@ void main()
   color = texture(sampler2D(image,smp), texcoords);
   color *= fcolor;
   color.xyz = mix(color.xyz, femissive.xyz, femissive.a);
+  color.a = 1.0;
+  
 }
 @end
 
diff --git a/source/shaders/text.sglsl b/source/shaders/text.sglsl
index 9894038..5bf3fc6 100644
--- a/source/shaders/text.sglsl
+++ b/source/shaders/text.sglsl
@@ -1,5 +1,6 @@
 @vs vs
 in vec2 vert;
+
 in vec2 pos;
 in vec2 wh;
 in vec2 uv;
diff --git a/source/shaders/unlit.sglsl b/source/shaders/unlit.sglsl
index d925ccd..5662904 100644
--- a/source/shaders/unlit.sglsl
+++ b/source/shaders/unlit.sglsl
@@ -1,10 +1,10 @@
 @vs vs
 in vec3 a_pos;
 in vec2 a_tex_coords;
-//in vec3 a_norm;
+in vec3 a_norm;
 
 out vec2 tex_coords;
-//out vec3 normal;
+out vec3 normal;
 
 uniform vs_p {
 uniform mat4 vp;
@@ -14,21 +14,21 @@ uniform mat4 model;
 void main() {
   gl_Position = vp * vec4(vec3(model * vec4(a_pos,1.0)), 1.0);  
   tex_coords = a_tex_coords;
-  //normal = a_norm;
+  normal = a_norm;
 }
 @end
 
 @fs fs
 in vec2 tex_coords;
-//in vec3 normal;
+in vec3 normal;
 out vec4 color;
 
 uniform texture2D diffuse;
 uniform sampler smp;
 
 void main() {
-  //vec3 lightDir = normalize(vec3(0.5f, 0.5f, 1.0f));
-  //float diff = max(dot(normal, lightDir), 0.0f);
+  vec3 lightDir = normalize(vec3(0.5f, 0.5f, 1.0f));
+  float diff = max(dot(normal, lightDir), 0.0f);
   color = texture(sampler2D(diffuse,smp),tex_coords);
 }
 @end