From d3e8a791cc97859919f33f8e5fd5c2cdb28811ba Mon Sep 17 00:00:00 2001
From: cinnaboot <cinnaboot@protonmail.com>
Date: Tue, 27 Oct 2020 13:46:24 -0400
Subject: [PATCH] log debug info from assimp for animation prep

---
 .gitattributes                                |  1 +
 examples/assimp_loading/animation_testing.cpp | 38 +++++++++++++++++++
 examples/assimp_loading/main.cpp              | 20 ++++++++++
 3 files changed, 59 insertions(+)
 create mode 100644 examples/assimp_loading/animation_testing.cpp

diff --git a/.gitattributes b/.gitattributes
index f2c2af3..97f12d1 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,2 +1,3 @@
 *.png filter=lfs diff=lfs merge=lfs -text
 *.glb filter=lfs diff=lfs merge=lfs -text
+*.blend filter=lfs diff=lfs merge=lfs -text
diff --git a/examples/assimp_loading/animation_testing.cpp b/examples/assimp_loading/animation_testing.cpp
new file mode 100644
index 0000000..91e307b
--- /dev/null
+++ b/examples/assimp_loading/animation_testing.cpp
@@ -0,0 +1,38 @@
+
+#include <cstdio>	// snprintf
+#include <iostream>	// std::cout
+
+#include <assimp/cimport.h>
+#include <assimp/scene.h>
+#include <assimp/postprocess.h>
+
+#include "dumbLog.h"
+
+
+void
+debugParseNode(aiNode* node, aiMatrix4x4 xform, uint depth=0)
+{
+	depth++;
+	char tabs[256];
+	snprintf(tabs, 256, "%*s", depth * 4, " ");
+	std::cout << tabs << node->mName.C_Str() << ", has meshes: " << (node->mNumMeshes > 0) << "\n";
+
+	for (uint i = 0; i < node->mNumChildren; i++)
+		debugParseNode(node->mChildren[i], xform, depth);
+}
+
+void
+logDebugAnimationInfo(const char* model_name)
+{
+	const aiScene* scene = aiImportFile(model_name, aiProcessPreset_TargetRealtime_MaxQuality);
+
+	if (!scene) {
+		LOG(Error) << "Error loading file: " << model_name << "\n";
+		return;
+	}
+
+	std::cout << "\n\n--------------------------------------\n";
+	aiMatrix4x4 identity_mat;
+	debugParseNode(scene->mRootNode, identity_mat);
+	std::cout << "--------------------------------------\n\n\n";
+}
diff --git a/examples/assimp_loading/main.cpp b/examples/assimp_loading/main.cpp
index e93d4f6..ebeaf59 100644
--- a/examples/assimp_loading/main.cpp
+++ b/examples/assimp_loading/main.cpp
@@ -10,6 +10,7 @@
 
 typedef void (*frame_callback_fn) (render_state*);
 
+
 void
 doFrameCallback(render_state* rs)
 {
@@ -37,7 +38,14 @@ doRenderLoop(render_state* rs, frame_callback_fn callback_fn, Entity* entities,
 		}
 
 		callback_fn(rs);
+
 		// TODO: entity pointer and entity count should be stored somewhere on the render_state object
+		// TODO: render_group should track a group of entity objects. the entity objects
+		// 	should keep track of their own render_objects?
+		/*
+		*	render_group -> entities -> render_object(s)
+		*							 -> mesh_info ?
+		*/
 		renRenderFrame(rs, entities, entity_count);
 		SDL_GL_SwapWindow(rs->handles.window);
 		frameTime = SDL_GetTicks() - frameStart;
@@ -47,6 +55,9 @@ doRenderLoop(render_state* rs, frame_callback_fn callback_fn, Entity* entities,
 	}
 }
 
+// TODO: remove/refactor this when we get animation working
+#include "animation_testing.cpp"
+
 int
 main()
 {
@@ -77,6 +88,14 @@ main()
 	rs->num_lights = 1;
 	rs->lights[0].position = glm::vec3(200, -150, 150);
 
+	// TODO: look into setting up git-annex for large files. git-lfs works fine for gitlab,
+	// 	but has no real implementation for self-hosting:
+	// 		https://github.com/git-lfs/git-lfs/issues/1044
+	// 		https://git-annex.branchable.com/
+	//
+	// NOTE: testing assimp animation info
+	logDebugAnimationInfo("../data/spaceship.glb");
+
 	if (entInit(spaceship, "../data/spaceship.glb", rs->default_shader))
 		doRenderLoop(rs, doFrameCallback, &spaceship, 1);
 	else
@@ -86,3 +105,4 @@ main()
 	meShutdownAssimp();
 	return 0;
 }
+