GPencil: Use indexed rendering instead of instances

This allows using instancing in other ways, like resources indexing.

2 files changed, 14 insertions, 26 deletions

diff --git a/source/blender/draw/engines/eevee_next/eevee_sync.cc b/source/blender/draw/engines/eevee_next/eevee_sync.cc
index 08cda6f47cf..0915dace1e5 100644
--- a/source/blender/draw/engines/eevee_next/eevee_sync.cc
+++ b/source/blender/draw/engines/eevee_next/eevee_sync.cc
@@ -248,15 +248,15 @@ static void gpencil_stroke_sync(bGPDlayer * /*gpl*/,
     return;
   }
 
+  GPUBatch *geom = DRW_cache_gpencil_get(iter.ob, iter.cfra);
+
   if (show_fill) {
-    GPUBatch *geom = DRW_cache_gpencil_fills_get(iter.ob, iter.cfra);
     int vfirst = gps->runtime.fill_start * 3;
     int vcount = gps->tot_triangles * 3;
     gpencil_drawcall_add(iter, geom, material, vfirst, vcount, false);
   }
 
   if (show_stroke) {
-    GPUBatch *geom = DRW_cache_gpencil_strokes_get(iter.ob, iter.cfra);
     /* Start one vert before to have gl_InstanceID > 0 (see shader). */
     int vfirst = gps->runtime.stroke_start - 1;
     /* Include "potential" cyclic vertex and start adj vertex (see shader). */
diff --git a/source/blender/draw/engines/eevee_next/shaders/eevee_geom_gpencil_vert.glsl b/source/blender/draw/engines/eevee_next/shaders/eevee_geom_gpencil_vert.glsl
index 38debf14eda..87a5bf71c45 100644
--- a/source/blender/draw/engines/eevee_next/shaders/eevee_geom_gpencil_vert.glsl
+++ b/source/blender/draw/engines/eevee_next/shaders/eevee_geom_gpencil_vert.glsl
@@ -16,30 +16,18 @@ void main()
   float hardness;
   vec2 thickness;
 
-  gl_Position = gpencil_vertex(ma,
-                               ma1,
-                               ma2,
-                               ma3,
-                               pos,
-                               pos1,
-                               pos2,
-                               pos3,
-                               uv1,
-                               uv2,
-                               col1,
-                               col2,
-                               fcol1,
-                               /* TODO */
-                               vec4(1024.0, 1024.0, 1.0 / 1024.0, 1.0 / 1024.0),
-                               interp.P,
-                               interp.N,
-                               g_color,
-                               strength,
-                               g_uvs,
-                               sspos,
-                               aspect,
-                               thickness,
-                               hardness);
+  gl_Position = gpencil_vertex(
+      /* TODO */
+      vec4(1024.0, 1024.0, 1.0 / 1024.0, 1.0 / 1024.0),
+      interp.P,
+      interp.N,
+      g_color,
+      strength,
+      g_uvs,
+      sspos,
+      aspect,
+      thickness,
+      hardness);
 #ifdef MAT_VELOCITY
   /* GPencil do not support deformation motion blur. */
   vec3 lP_curr = transform_point(ModelMatrixInverse, interp.P);