Help after adding shaders to psychengine to change the color the stage became completely black

Oct 13, 2025 by wbrum.org 34 views

Help after adding shaders to psychengine to change the color the stage became completely black

Describe your problem here.

You've encountered a frustrating issue after adding a shader to change the color of objects in Psychengine. The background has turned completely black, and you're not sure what's causing this problem. Don't worry, we're here to help you troubleshoot and find a solution.

Additional information

You've provided a screenshot of the issue, which is helpful in understanding the problem. The code of the shader you've added is also provided, which is essential in identifying the root cause of the issue.

function onCreate()
	if shadersEnabled == true then
        initLuaShader('adjustColor')
        for i, object in ipairs({'boyfriend', 'dad', 'gf', 'trickystopsign'}) do
            setSpriteShader(object, 'adjustColor')
            setShaderFloat(object, 'hue', -26)
            setShaderFloat(object, 'saturation', 
            setShaderFloat(object, 'contrast', 0)
            setShaderFloat(object, 'brightness', -5)
        end
	end
end

Are you modding a build from source or with Lua?

You've mentioned that you're using Lua to mod Psychengine, which is a common approach for modding this game engine.

What is your build target?

You're targeting Windows x64, which is a popular platform for game development.

Did you edit anything in this build? If so, mention or summarize your changes.

You've mentioned that you haven't edited anything in the game base, which suggests that the issue might be related to the shader code or the way you're using it.

Troubleshooting the issue

To troubleshoot this issue, let's go through the shader code and see if we can identify any potential problems.

The initLuaShader function is called to initialize the shader, which is a good practice.
The setSpriteShader function is used to set the shader for each object, which is also a good practice.
The setShaderFloat function is used to set the hue, saturation, contrast, and brightness values for each object. However, there seems to be a syntax error in the code, where the saturation value is not properly closed.

setShaderFloat(object, 'saturation',

This syntax error might be causing the issue, as the shader code is not being executed correctly.

Solution

To fix this issue, you can try the following:

Correct the syntax error in the shader code by properly closing the saturation value.
Make sure that the shader code is properly formatted and indented, which can help identify any potential issues.
Try to simplify the shader code by removing any unnecessary lines or functions.
If the issue persists, try to debug the shader code by using a debugger or by printing out the values of the shader variables.

Example of corrected shader code

Here's an example of how the corrected shader code might look like:

function onCreate()
	if shadersEnabled == true then
        initLuaShader('adjustColor')
        for i, object in ipairs({'boyfriend', 'dad', 'gf', 'trickystopsign'}) do
            setSpriteShader(object, 'adjustColor')
            setShaderFloat(object, 'hue', -26)
            setShaderFloat(object, 'saturation', 0.5)
            setShaderFloat(object, 'contrast', 0)
            setShaderFloat(object, 'brightness', -5)
        end
	end
end

Conclusion

In conclusion, the issue of the stage becoming completely black after adding a shader to change the color of objects in Psychengine is likely caused by a syntax error in the shader code. By correcting the syntax error and simplifying the shader code, you should be able to fix the issue and achieve the desired effect.

Additional tips

Make sure to test the shader code thoroughly to ensure that it's working correctly.
Consider using a debugger or a shader editor to help debug and optimize the shader code.
If you're new to shader programming, consider learning more about the basics of shader programming and how to use shaders in Psychengine.

Related resources

Final thoughts

We hope this article has been helpful in troubleshooting and fixing the issue of the stage becoming completely black after adding a shader to change the color of objects in Psychengine. If you have any further questions or need additional help, feel free to ask.
Q&A: Troubleshooting Shaders in Psychengine

Q: What are shaders, and why are they important in Psychengine?

A: Shaders are small programs that run on the graphics processing unit (GPU) to manipulate the visual appearance of 3D objects in a game. In Psychengine, shaders are used to create custom visual effects, such as changing the color of objects, adding textures, or creating complex lighting effects.

Q: What are some common issues that can occur when using shaders in Psychengine?

A: Some common issues that can occur when using shaders in Psychengine include:

Black or white screens: This can occur if the shader code is not properly formatted or if there are syntax errors in the code.
Incorrect visual effects: This can occur if the shader code is not correctly implemented or if the shader variables are not properly set.
Performance issues: This can occur if the shader code is too complex or if the shader variables are not properly optimized.

Q: How can I troubleshoot issues with shaders in Psychengine?

A: To troubleshoot issues with shaders in Psychengine, you can try the following:

Check the shader code: Make sure that the shader code is properly formatted and that there are no syntax errors in the code.
Use a debugger: Use a debugger to step through the shader code and identify any issues.
Test the shader: Test the shader in a simple scene to see if it's working correctly.
Optimize the shader: Optimize the shader code to improve performance.

Q: What are some best practices for writing shaders in Psychengine?

A: Some best practices for writing shaders in Psychengine include:

Keep it simple: Keep the shader code simple and easy to understand.
Use comments: Use comments to explain what the shader code is doing.
Test thoroughly: Test the shader thoroughly to ensure that it's working correctly.
Optimize for performance: Optimize the shader code for performance.

Q: Can I use shaders in Psychengine to create custom visual effects?

A: Yes, you can use shaders in Psychengine to create custom visual effects. Shaders can be used to create a wide range of visual effects, including:

Color changes: Shaders can be used to change the color of objects in a scene.
Textures: Shaders can be used to add textures to objects in a scene.
Lighting effects: Shaders can be used to create complex lighting effects, such as ambient Occlusion or dynamic lighting.

Q: How can I learn more about shaders in Psychengine?

A: To learn more about shaders in Psychengine, you can try the following:

Read the documentation: Read the Psychengine documentation to learn more about shaders and how to use them.
Watch tutorials: Watch tutorials on YouTube or other online platforms to learn more about shaders and how to use them.
Join a community: Join a community of Psychengine developers to ask questions and learn from others.

Q: Can I use shaders in Psychengine to create 3D models?

A: Yes, you can use shaders in Psychengine to create 3D models. Shaders can be used to create complex 3D models with detailed textures and lighting effects.

Q: How can I optimize shaders in Psychengine for performance?

A: To optimize shaders in Psychengine for performance, you can try the following:

Use a shader compiler: Use a shader compiler to optimize the shader code for performance.
Use a shader optimizer: Use a shader optimizer to optimize the shader code for performance.
Test the shader: Test the shader in a simple scene to see if it's working correctly.

Q: Can I use shaders in Psychengine to create animations?

A: Yes, you can use shaders in Psychengine to create animations. Shaders can be used to create complex animations with detailed textures and lighting effects.

Q: How can I learn more about animations in Psychengine?

A: To learn more about animations in Psychengine, you can try the following:

Read the documentation: Read the Psychengine documentation to learn more about animations and how to use them.
Watch tutorials: Watch tutorials on YouTube or other online platforms to learn more about animations and how to use them.
Join a community: Join a community of Psychengine developers to ask questions and learn from others.

Q: Can I use shaders in Psychengine to create interactive elements?

A: Yes, you can use shaders in Psychengine to create interactive elements. Shaders can be used to create complex interactive elements with detailed textures and lighting effects.

Q: How can I learn more about interactive elements in Psychengine?

A: To learn more about interactive elements in Psychengine, you can try the following:

Read the documentation: Read the Psychengine documentation to learn more about interactive elements and how to use them.
Watch tutorials: Watch tutorials on YouTube or other online platforms to learn more about interactive elements and how to use them.
Join a community: Join a community of Psychengine developers to ask questions and learn from others.

Q: Can I use shaders in Psychengine to create special effects?

A: Yes, you can use shaders in Psychengine to create special effects. Shaders can be used to create complex special effects with detailed textures and lighting effects.

Q: How can I learn more about special effects in Psychengine?

A: To learn more about special effects in Psychengine, you can try the following:

Read the documentation: Read the Psychengine documentation to learn more about special effects and how to use them.
Watch tutorials: Watch tutorials on YouTube or other online platforms to learn more about special effects and how to use them.
Join a community: Join a community of Psychengine developers to ask questions and learn from others.

Q: Can I use shaders in Psychengine to create 2D graphics?

A: Yes, you can use shaders in Psychengine to create 2D graphics. Shaders can be used to create complex 2D graphics with detailed textures and lighting effects.

Q: How can I learn more about 2D graphics in Psychengine?

A: To learn more about 2D graphics in Psychengine, you can try the following:

Read the documentation: Read the Psychengine documentation to learn more about 2D graphics and how to use them.
Watch tutorials: Watch tutorials on YouTube or other online platforms to learn more about 2D graphics and how to use them.
Join a community: Join a community of Psychengine developers to ask questions and learn from others.

Q: Can I use shaders in Psychengine to create 3D graphics?

A: Yes, you can use shaders in Psychengine to create 3D graphics. Shaders can be used to create complex 3D graphics with detailed textures and lighting effects.

Q: How can I learn more about 3D graphics in Psychengine?

A: To learn more about 3D graphics in Psychengine, you can try the following:

Read the documentation: Read the Psychengine documentation to learn more about 3D graphics and how to use them.
Watch tutorials: Watch tutorials on YouTube or other online platforms to learn more about 3D graphics and how to use them.
Join a community: Join a community of Psychengine developers to ask questions and learn from others.

Q: Can I use shaders in Psychengine to create physics-based simulations?

A: Yes, you can use shaders in Psychengine to create physics-based simulations. Shaders can be used to create complex physics-based simulations with detailed textures and lighting effects.

Q: How can I learn more about physics-based simulations in Psychengine?

A: To learn more about physics-based simulations in Psychengine, you can try the following:

Read the documentation: Read the Psychengine documentation to learn more about physics-based simulations and how to use them.
Watch tutorials: Watch tutorials on YouTube or other online platforms to learn more about physics-based simulations and how to use them.
Join a community: Join a community of Psychengine developers to ask questions and learn from others.

Q: Can I use shaders in Psychengine to create dynamic lighting effects?

A: Yes, you can use shaders in Psychengine to create dynamic lighting effects. Shaders can be used to create complex dynamic lighting effects with detailed textures and lighting effects.

Q: How can I learn more about dynamic lighting effects in Psychengine?

A: To learn more about dynamic lighting effects in Psychengine, you can try the following:

Read the documentation: Read the Psychengine documentation to learn more about dynamic lighting effects and how to use them.
Watch tutorials: Watch tutorials on YouTube or other online platforms to learn more about dynamic lighting effects and how to use them.
Join a community: Join a community of Psychengine developers to ask questions and learn from others.

Q: Can I use shaders in Psychengine to create ambient Occlusion effects?

A: Yes, you can use shaders in Psychengine to create ambient Occlusion effects. Shaders can be used to create complex ambient Occlusion effects with detailed textures and lighting effects.

Q: How can I learn more about ambient Occlusion effects in Psychengine?

A: To learn more about ambient Occlusion effects in Psychengine, you can try the following:

Read the documentation: Read the Psychengine documentation to learn more about ambient Occlusion effects and how to use them.
Watch tutorials: Watch tutorials on YouTube or other online platforms to learn more about ambient Occlusion effects and how to use them.
Join a community: Join a