change curve evaluation functions never to modify curve data (ensures thread safety), now initializations has to be done outside evaluation.

1 files changed, 3 insertions, 0 deletions

diff --git a/source/blender/nodes/shader/nodes/node_shader_curves.c b/source/blender/nodes/shader/nodes/node_shader_curves.c
index be7f3c1c614..512182ebe12 100644
--- a/source/blender/nodes/shader/nodes/node_shader_curves.c
+++ b/source/blender/nodes/shader/nodes/node_shader_curves.c
@@ -65,6 +65,7 @@ static int gpu_shader_curve_vec(GPUMaterial *mat, bNode *node, GPUNodeStack *in,
 	float *array;
 	int size;
 
+	curvemapping_initialize(node->storage);
 	curvemapping_table_RGBA(node->storage, &array, &size);
 	return GPU_stack_link(mat, "curves_vec", in, out, GPU_texture(size, array));
 }
@@ -120,6 +121,8 @@ static int gpu_shader_curve_rgb(GPUMaterial *mat, bNode *node, GPUNodeStack *in,
 {
 	float *array;
 	int size;
+
+	curvemapping_initialize(node->storage);
 	curvemapping_table_RGBA(node->storage, &array, &size);
 	return GPU_stack_link(mat, "curves_rgb", in, out, GPU_texture(size, array));
 }