Hey
My laptop recently decided to die, so Ive been transferring my project to my work laptop just to get it up to date, and commit it. I was banging my head against the wall all day, as my textures where not displaying in my program- I was getting no errors and no indication of why it was occurring so I have been just trying to figure it out- I know the image loading was working ok, as im using image data elsewhere, I was pretty confident that the code was fine also, as ive never had an issue with displaying textures before, so I thought it might be the drivers on this laptop, (my old one was just using the built in IntelHD, while this laptop has a NVIDIA graphics card) but all seems to be up to date.
Below are my basic shaders:
Vertex Shader
#version 330 core
layout(location = 0) in vec3 position;
layout(location = 1) in vec3 color;
layout(location = 2) in vec3 normal;
layout(location = 3) in vec2 texCoord;
uniform mat4 Projection;
uniform mat4 Model;
out vec3 Color;
out vec3 Normal;
out vec2 TexCoord;
void main()
{
gl_Position = Projection * Model * vec4( position, 1.0 );
Color = color;
Normal = normal;
TexCoord = vec2( texCoord.x, texCoord.y);
}Fragment Shader
#version 330 core
in vec3 Color;
in vec3 Normal;
in vec2 TexCoord;
uniform sampler2D textureData;
void main()
{
vec4 textureColor = texture( textureData, TexCoord );
vec4 finalColor = textureColor * vec4( Color, 1.0f);
gl_FragColor = finalColor;
}Calling Code
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, textureID);
glUniform1i(glGetUniformLocation(shaderID, "textureData"), textureID);Now this is the part i dont understand, I worked through my program, until I got to the above 'Calling Code'. This just displays a black texture.. my original issue. Out of desperation, I just tried changing the name in glGetUniformLocation from "textureData" to "textureData_invalid" to see if my error checks would through up something, but in actual fact, it is now displaying the texture as expected. Can anyone fathom a guess as too why this is occurring.. im assuming the random text is just picking up the correct location by c++ witchcraft, but why is the original one not getting picked up correctly and/or not working as expected
I realize more code is probably needed to see how it all hangs together.. but it seems to come down to this as the issue
