Hi. I'm making a productivity app that for technical reasons I ended up using a render

I recreated it in C and it still reproduces. <div class="snippet-clipboard-content

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[rcore] `RenderTexture` looks wrong for a few frames after window init/resize about raylib HOT 3 CLOSED

Kuroonehalf commented on June 14, 2024 1

[rcore] `RenderTexture` looks wrong for a few frames after window init/resize

from raylib.

Comments (3)

Kuroonehalf commented on June 14, 2024 1

I recreated it in C and it still reproduces.

#include <stdio.h>

#include "raylib.h"

int main(void){
    bool sizetoggle = false;
    SetTargetFPS(2);
    InitWindow(400, 200, "Test");

    RenderTexture2D tex = LoadRenderTexture(400, 300);

    Font font = LoadFontEx("font/Lato-Regular.ttf", 26, 0, 0);
    while (!WindowShouldClose()) {
        if (IsMouseButtonPressed(0)){
            if (sizetoggle){ SetWindowSize(400, 200); }
            else { SetWindowSize(400, 300); }
            sizetoggle = !sizetoggle;
        }

        BeginTextureMode(tex);

        ClearBackground(WHITE);

        DrawTextEx(font, "Test string", (Vector2) {10, 10}, font.baseSize, 0, BLACK);
        DrawTextEx(font, "Test string 2", (Vector2) {10, 60}, font.baseSize, 0, BLACK);

        EndTextureMode();
        BeginDrawing();
        DrawTextureRec(tex.texture, (Rectangle) {0, 0, tex.texture.width, -tex.texture.height}, (Vector2) {0, 0}, WHITE);
        EndDrawing();
    }
    CloseWindow();

    return 0;
}

Test_2024_03_29.mp4

from raylib.

raysan5 commented on June 14, 2024 1

@Kuroonehalf I think issue is related to not calling ClearBackground() after BeginDrawing(), so all the text draws are accumulated over the main framebuffer giving wider strokes. It seems SetWindowSize() clears the framebuffer (probably the drivers does it) and so the first strokes look thinner again.

Here my test code:

#include <stdio.h>
#include "raylib.h"

int main(void)
{
    bool sizetoggle = false;

    InitWindow(400, 200, "Test");

    RenderTexture2D tex = LoadRenderTexture(400, 300);

    Font font = LoadFontEx("CourierPrimeSans.ttf", 32, 0, 0);

    SetTargetFPS(10);
    
    while (!WindowShouldClose())
    {
        if (IsMouseButtonPressed(0))
        {
            if (sizetoggle){ SetWindowSize(400, 200); }
            else { SetWindowSize(400, 300); }
            
            sizetoggle = !sizetoggle;
        }

        BeginTextureMode(tex);
            ClearBackground(WHITE);
            DrawTextEx(font, "Test string", (Vector2) {10, 10}, font.baseSize, 0, BLACK);
            DrawTextEx(font, "Test string 2", (Vector2) {10, 60}, font.baseSize, 0, BLACK);
        EndTextureMode();
        
        BeginDrawing();
            ClearBackground(WHITE);
            DrawTextureRec(tex.texture, (Rectangle) {0, 0, tex.texture.width, -tex.texture.height}, (Vector2) {0, 0}, WHITE);
        EndDrawing();
    }
    
    CloseWindow();

    return 0;
}