kwin/scene-color-vertex.glsl

uniform mat4 projection;
// offset of the window/texture to be rendered
uniform vec2 offset;

// passed in vertex - only x and y are used
attribute vec4 vertex;

void main() {
    gl_Position = projection*vec4(vertex.xy + offset, vertex.zw);
}
Simple vertex shaders use projection matrix and offset 2010-12-12 12:40:39 +00:00			`uniform mat4 projection;`
			`// offset of the window/texture to be rendered`
			`uniform vec2 offset;`
Adding color to VBO. A color can be specified to render the geometry of the VBO. For legacy painting glColor is used, for shader a uniform is set. In order to allow rendering without texcoords, it is possible to pass a null pointer as texcoords. Shader added to scene which just renders a colored geometry without texturing. 2010-12-05 08:13:46 +00:00
			`// passed in vertex - only x and y are used`
			`attribute vec4 vertex;`

			`void main() {`
Fix passing matrixes to the shaders QMatrix4x4 accepts data in row-major order, but returns them in column-major order, which is not documented and because of that I expected them to be in row-major order. This commit fixes it and rewrites the shaders to apply the matrix multiplications in the right order. REVIEW: 100759 2011-03-06 08:10:21 +00:00			`gl_Position = projection*vec4(vertex.xy + offset, vertex.zw);`
Adding color to VBO. A color can be specified to render the geometry of the VBO. For legacy painting glColor is used, for shader a uniform is set. In order to allow rendering without texcoords, it is possible to pass a null pointer as texcoords. Shader added to scene which just renders a colored geometry without texturing. 2010-12-05 08:13:46 +00:00			`}`