[英]LibGdx GLES2.0 cube texel stretching
I've been programming OpenGL on Windows/SDL for a few years and am able to do quite a lot of advanced things with it. 我已经在Windows / SDL上对OpenGL编程了几年,并且能够用它做很多高级的事情。
I've switched over to Android and libgdx and over the past few days have tried to put a simple demo together, just a spinning cube. 我已经切换到Android和libgdx,并且在过去几天中尝试将一个简单的演示放在一起,只是一个旋转的立方体。
Using libgdx's ObjLoader
and Mesh
classes, I loaded a cube mesh exported from blender(with normals and uv coords), and tried to apply a texture, and it draws a cube, but seems to only uses one texel from the texture to cover the whole model. 使用libgdx的
ObjLoader
和Mesh
类,我加载了从Blender导出的立方体网格(具有法线和uv坐标),并尝试应用纹理,并绘制了一个立方体,但似乎仅使用纹理中的一个texel覆盖了整个模型。
I've double checked the texture coordinates and even hand coded a plane with specific coordinates to test, and the same thing is happening. 我已经仔细检查了纹理坐标,甚至手工编码了具有特定坐标的平面以进行测试,并且发生了同样的事情。
This is the Vertex Shader: 这是顶点着色器:
attribute vec4 a_position;
attribute vec3 a_normal;
attribute vec2 a_texCoord;
uniform mat4 mvp;
varying vec3 outNormal;
varying vec2 outTexcd;
void main(){
outNormal = a_normal;
outTexcd = a_texCoord;
gl_Position = mvp * a_position;
}
And the fragment shader: 和片段着色器:
precision highp float;
varying vec3 outNormal;
varying vec2 outTexcd;
uniform sampler2D tex;
void main(){
vec3 norms = outNormal;
gl_FragColor = texture2D(tex,outTexcd);
}
But I don't think that's where the problem lies. 但是我不认为这就是问题所在。 Or maybe it does, I'm not sure.
也许确实如此,我不确定。
Didn't want to clog up this question too much so the main source is here(pastebin): Main Source 不想过多地阻塞这个问题,所以主要来源在这里(pastebin): 主要来源
If this is a bad question please let me know, It's my first one. 如果这个问题不好,请告诉我,这是我的第一个问题。
Playing with images I found the answer. 玩图像我找到了答案。
Was using a 32 bit .png RGBA8888, but not telling libgdx that. 正在使用32位.png RGBA8888,但没有告诉libgdx。
Switched to take in the image as RGBA8888: 切换为以RGBA8888的形式拍摄图像:
t = new Texture(Gdx.files.internal("Image/r3.png"),Format.RGBA8888,true);
I feel slightly sheepish, sorry all. 我感到有些不高兴,对不起。
EDIT: Strangely, no transparency though... 编辑:奇怪的是,虽然没有透明度...
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