Exception using UploadMesh #263
Comments
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Hey @Roboadam, as a workaround u can set the GODEBUG environment variable like this: More information in the go docs: https://pkg.go.dev/cmd/cgo#hdr-Passing_pointers |
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Here is a "running" example: package main
import (
rl "github.com/gen2brain/raylib-go/raylib"
)
func main() {
rl.InitWindow(800, 450, "Test")
defer rl.CloseWindow()
verticies := []float32{0, 0, 0, 1, 0, 2, 2, 0, 0}
normals := []float32{0, 1, 0, 0, 1, 0, 0, 1, 0}
textcoord := []float32{0, 0, 0.5, 1, 1, 0}
mesh := rl.Mesh{
TriangleCount: 1,
VertexCount: 3,
Vertices: &verticies[0],
Normals: &normals[0],
Texcoords: &textcoord[0],
}
rl.UploadMesh(&mesh, false)
model := rl.LoadModelFromMesh(mesh)
defer rl.UnloadModel(model)
camera := rl.Camera3D{Position: rl.Vector3{X: 5, Y: 5, Z: 5}, Up: rl.Vector3{Y: 1}, Fovy: 45}
for !rl.WindowShouldClose() {
rl.UpdateCamera(&camera, rl.CameraOrbital)
rl.BeginDrawing()
rl.ClearBackground(rl.RayWhite)
rl.BeginMode3D(camera)
rl.DrawModel(model, rl.Vector3{}, 1, rl.Red)
rl.DrawGrid(10, 1)
rl.EndMode3D()
rl.EndDrawing()
}
}
But in the end, it is going to crash: This is because |
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Thank you so much for the thorough reply. Setting cgocheck=0 "fixes" it. That makes perfect sense about UnloadModel and the GC not playing nicely together. |
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Disclamer: I am a complete novice at golang so this may be a silly issue.
I was trying recreate the models/models_mesh_generation.c from the c raylib examples and I got
"runtime error: cgo argument has Go pointer to Go pointer"when calling UploadMesh.This is a simplified example that recreates the issue:
Produces:
The text was updated successfully, but these errors were encountered: