Implement cubic bezier surfaceHEADmaster

1 files changed, 14 insertions, 0 deletions

diff --git a/src/main.cpp b/src/main.cpp
index 34d4959..126daef 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -68,12 +68,15 @@ public:
 			glGetUniformLocation(this->program, "mvp");
 		this->mv_normal_uniform =
 			glGetUniformLocation(this->program, "mv_normal");
+		this->k_uniform =
+			glGetUniformLocation(this->program, "k_uniform");
 		this->light_dir_cs_uniform =
 			glGetUniformLocation(this->program, "light_dir_cs");
 	}
 
 	GLint mvp_uniform;
 	GLint mv_normal_uniform;
+	GLint k_uniform;
 	GLint light_dir_cs_uniform;
 };
 
@@ -373,6 +376,17 @@ Redisplay(void)
 	glUniformMatrix3fv(patch_program->mv_normal_uniform, 1, false,
 			   mv_normal);
 
+	float k_uniform[4][4][3];
+	for (int i = 0; i < 4; i++) {
+		for (int j = 0; j < 4; j++) {
+			for (int k = 0; k < 3; k++) {
+				k_uniform[i][j][k] = control_points[4 * i + j].values[k];
+			}
+		}
+	}
+	glUniformMatrix4x3fv(patch_program->k_uniform, 4, false,
+			     (const float *)k_uniform);
+
 	glDrawElements(mesh_sink->mode,
 		       mesh_sink->elt_count,
 		       GL_UNSIGNED_SHORT,