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Ray 2019-05-20 16:36:42 +02:00
parent a43a7980a3
commit b525039e0a
96 changed files with 1301 additions and 1317 deletions
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79
examples/models/models_mesh_picking.c
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@ -15,12 +15,12 @@
#define FLT_MAX 340282346638528859811704183484516925440.0f // Maximum value of a float, from bit pattern 01111111011111111111111111111111
int main()
int main(void)
{
// Initialization
//--------------------------------------------------------------------------------------
int screenWidth = 800;
int screenHeight = 450;
const int screenWidth = 800;
const int screenHeight = 450;
InitWindow(screenWidth, screenHeight, "raylib [models] example - mesh picking");
@ -33,22 +33,22 @@ int main()
camera.type = CAMERA_PERSPECTIVE; // Camera mode type
Ray ray = { 0 }; // Picking ray
Model tower = LoadModel("resources/models/turret.obj"); // Load OBJ model
Texture2D texture = LoadTexture("resources/models/turret_diffuse.png"); // Load model texture
tower.materials[0].maps[MAP_DIFFUSE].texture = texture; // Set model diffuse texture
Vector3 towerPos = { 0.0f, 0.0f, 0.0f }; // Set model position
BoundingBox towerBBox = MeshBoundingBox(tower.meshes[0]); // Get mesh bounding box
bool hitMeshBBox = false;
bool hitTriangle = false;
// Test triangle
Vector3 ta = (Vector3){ -25.0, 0.5, 0.0 };
Vector3 ta = (Vector3){ -25.0, 0.5, 0.0 };
Vector3 tb = (Vector3){ -4.0, 2.5, 1.0 };
Vector3 tc = (Vector3){ -8.0, 6.5, 0.0 };
Vector3 bary = { 0.0f, 0.0f, 0.0f };
Vector3 bary = { 0.0f, 0.0f, 0.0f };
SetCameraMode(camera, CAMERA_FREE); // Set a free camera mode
@ -60,7 +60,7 @@ int main()
// Update
//----------------------------------------------------------------------------------
UpdateCamera(&camera); // Update camera
// Display information about closest hit
RayHitInfo nearestHit = { 0 };
char *hitObjectName = "None";
@ -70,10 +70,10 @@ int main()
// Get ray and test against ground, triangle, and mesh
ray = GetMouseRay(GetMousePosition(), camera);
// Check ray collision aginst ground plane
RayHitInfo groundHitInfo = GetCollisionRayGround(ray, 0.0f);
if ((groundHitInfo.hit) && (groundHitInfo.distance < nearestHit.distance))
{
nearestHit = groundHitInfo;
@ -83,8 +83,8 @@ int main()
// Check ray collision against test triangle
RayHitInfo triHitInfo = GetCollisionRayTriangle(ray, ta, tb, tc);
if ((triHitInfo.hit) && (triHitInfo.distance < nearestHit.distance))
if ((triHitInfo.hit) && (triHitInfo.distance < nearestHit.distance))
{
nearestHit = triHitInfo;
cursorColor = PURPLE;
@ -92,32 +92,31 @@ int main()
bary = Vector3Barycenter(nearestHit.position, ta, tb, tc);
hitTriangle = true;
}
}
else hitTriangle = false;
RayHitInfo meshHitInfo = { 0 };
// Check ray collision against bounding box first, before trying the full ray-mesh test
if (CheckCollisionRayBox(ray, towerBBox))
if (CheckCollisionRayBox(ray, towerBBox))
{
hitMeshBBox = true;
// Check ray collision against model
// NOTE: It considers model.transform matrix!
meshHitInfo = GetCollisionRayModel(ray, &tower);
if ((meshHitInfo.hit) && (meshHitInfo.distance < nearestHit.distance))
meshHitInfo = GetCollisionRayModel(ray, &tower);
if ((meshHitInfo.hit) && (meshHitInfo.distance < nearestHit.distance))
{
nearestHit = meshHitInfo;
cursorColor = ORANGE;
hitObjectName = "Mesh";
}
}
hitMeshBBox = false;
}
hitMeshBBox = false;
//----------------------------------------------------------------------------------
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
@ -127,10 +126,10 @@ int main()
BeginMode3D(camera);
// Draw the tower
// WARNING: If scale is different than 1.0f,
// WARNING: If scale is different than 1.0f,
// not considered by GetCollisionRayModel()
DrawModel(tower, towerPos, 1.0f, WHITE);
// Draw the test triangle
DrawLine3D(ta, tb, PURPLE);
DrawLine3D(tb, tc, PURPLE);
@ -140,7 +139,7 @@ int main()
if (hitMeshBBox) DrawBoundingBox(towerBBox, LIME);
// If we hit something, draw the cursor at the hit point
if (nearestHit.hit)
if (nearestHit.hit)
{
DrawCube(nearestHit.position, 0.3, 0.3, 0.3, cursorColor);
DrawCubeWires(nearestHit.position, 0.3, 0.3, 0.3, RED);
@ -149,40 +148,40 @@ int main()
normalEnd.x = nearestHit.position.x + nearestHit.normal.x;
normalEnd.y = nearestHit.position.y + nearestHit.normal.y;
normalEnd.z = nearestHit.position.z + nearestHit.normal.z;
DrawLine3D(nearestHit.position, normalEnd, RED);
}
DrawRay(ray, MAROON);
DrawGrid(10, 10.0f);
EndMode3D();
// Draw some debug GUI text
DrawText(FormatText("Hit Object: %s", hitObjectName), 10, 50, 10, BLACK);
if (nearestHit.hit)
if (nearestHit.hit)
{
int ypos = 70;
DrawText(FormatText("Distance: %3.2f", nearestHit.distance), 10, ypos, 10, BLACK);
DrawText(FormatText("Hit Pos: %3.2f %3.2f %3.2f",
nearestHit.position.x,
nearestHit.position.y,
DrawText(FormatText("Hit Pos: %3.2f %3.2f %3.2f",
nearestHit.position.x,
nearestHit.position.y,
nearestHit.position.z), 10, ypos + 15, 10, BLACK);
DrawText(FormatText("Hit Norm: %3.2f %3.2f %3.2f",
nearestHit.normal.x,
nearestHit.normal.y,
DrawText(FormatText("Hit Norm: %3.2f %3.2f %3.2f",
nearestHit.normal.x,
nearestHit.normal.y,
nearestHit.normal.z), 10, ypos + 30, 10, BLACK);
if (hitTriangle) DrawText(FormatText("Barycenter: %3.2f %3.2f %3.2f", bary.x, bary.y, bary.z), 10, ypos + 45, 10, BLACK);
}
DrawText("Use Mouse to Move Camera", 10, 430, 10, GRAY);
DrawText("(c) Turret 3D model by Alberto Cano", screenWidth - 200, screenHeight - 20, 10, GRAY);
DrawFPS(10, 10);
@ -195,7 +194,7 @@ int main()
//--------------------------------------------------------------------------------------
UnloadModel(tower); // Unload model
UnloadTexture(texture); // Unload texture
CloseWindow(); // Close window and OpenGL context
//--------------------------------------------------------------------------------------