GPUShader: Add 2D Nodelink shader.

Special shader to draw nodelinks for the node editor.

We only pass bezier points to the GPU and vertex position is handled inside
the vertex shader.
The arrow is also part of the batch to avoid separate drawcalls for it.

We still draw 2 pass one for shadow and one for the link color on top.

One variation to draw instances of theses links so that we only do one
drawcall.

1 files changed, 2 insertions, 0 deletions

diff --git a/source/blender/gpu/CMakeLists.txt b/source/blender/gpu/CMakeLists.txt
index b52817c68a8..de4d59ad10b 100644
--- a/source/blender/gpu/CMakeLists.txt
+++ b/source/blender/gpu/CMakeLists.txt
@@ -133,6 +133,8 @@ data_to_c_simple(shaders/gpu_shader_flat_color_frag.glsl SRC)
 data_to_c_simple(shaders/gpu_shader_flat_color_alpha_test_0_frag.glsl SRC)
 data_to_c_simple(shaders/gpu_shader_2D_vert.glsl SRC)
 data_to_c_simple(shaders/gpu_shader_2D_widget_base_vert.glsl SRC)
+data_to_c_simple(shaders/gpu_shader_2D_nodelink_frag.glsl SRC)
+data_to_c_simple(shaders/gpu_shader_2D_nodelink_vert.glsl SRC)
 data_to_c_simple(shaders/gpu_shader_2D_flat_color_vert.glsl SRC)
 data_to_c_simple(shaders/gpu_shader_2D_line_dashed_uniform_color_vert.glsl SRC)
 data_to_c_simple(shaders/gpu_shader_2D_line_dashed_frag.glsl SRC)