properly freeing debug draw buffers, added drawing of axes

src/modules/RenderModule.cc

@@ -684,13 +684,13 @@ void Renderer::createGeometries() {
 
 	// Create dynamic debug line buffer
 	debug_lines_vbh = bgfx::createDynamicVertexBuffer(
-			(uint32_t) 10,
+			(uint32_t) 1,
 			PosColorVertex::ms_decl,
 			BGFX_BUFFER_ALLOW_RESIZE
 			);
 
 	debug_lines_ibh = bgfx::createDynamicIndexBuffer(
-			(uint32_t) 10,
+			(uint32_t) 1,
 			BGFX_BUFFER_ALLOW_RESIZE
 			);
 
@@ -965,6 +965,9 @@ void Renderer::initialize(int width, int height) {
 }
 
 void Renderer::shutdown() {
+	bgfx::destroyDynamicVertexBuffer(debug_lines_vbh);
+	bgfx::destroyDynamicIndexBuffer(debug_lines_ibh);
+
 	bgfx::destroyIndexBuffer(cube_ibh);
 	bgfx::destroyIndexBuffer(cube_edges_ibh);
 	bgfx::destroyVertexBuffer(cube_vbh);
@@ -1158,7 +1161,7 @@ void Renderer::paintGL() {
 	bx::mtxSRT(mtxFloor
 			, 10.0f, 10.0f, 10.0f
 			, 0.0f, 0.0f, 0.0f
-			, 0.0f, 0.0f, 0.0f
+			, 0.0f, -0.001f, 0.0f
 			);
 
 	float lightMtx[16];
@@ -1473,4 +1476,14 @@ void Renderer::drawDebugLine (
 	debugCommands.push_back(cmd);
 }
 
+void Renderer::drawDebugAxes (
+		const SimpleMath::Vector3f &pos,
+		const SimpleMath::Matrix33f &orientation,
+		const float &scale) {
+
+	drawDebugLine (pos, pos + Vector3f (orientation.block<3,1>(0,0)) * scale, Vector3f (1.f, 0.f, 0.f));
+	drawDebugLine (pos, pos + Vector3f (orientation.block<3,1>(0,1)) * scale, Vector3f (0.f, 1.f, 0.f));
+	drawDebugLine (pos, pos + Vector3f (orientation.block<3,1>(0,2)) * scale, Vector3f (0.f, 0.f, 1.f));
+}
+
 

src/modules/RenderModule.h

@@ -179,6 +179,7 @@ struct LightProbe
 struct DebugCommand {
 	enum CommandType {
 		Line,
+		Axes,
 		Arrow
 	};
 
@@ -246,6 +247,11 @@ struct Renderer {
 			const SimpleMath::Vector3f &from,
 			const SimpleMath::Vector3f &to,
 			const SimpleMath::Vector3f &color);
+
+	void drawDebugAxes (
+			const SimpleMath::Vector3f &pos,
+			const SimpleMath::Matrix33f &orientation,
+			const float &scale);
 };
 
 struct RenderState {

src/modules/TestModule.cc

@@ -389,11 +389,10 @@ static bool module_step(struct module_state *state, float dt) {
 	handle_keyboard(state, dt);
 	update_character(state, dt);
 
-	gRenderer->drawDebugLine (
+	gRenderer->drawDebugAxes (
 			Vector3f (0.f, 0.f, 0.f),
-			Vector3f (5.f, 3.f, 2.f),
-			Vector3f (0.f, 1.f, 0.f)
-			);
+			Matrix33f::Identity(),
+			1.0f);
 
 	return true;
 }