diff options
Diffstat (limited to 'examples/qt3d/instanced-arrays-qml/gl45/instanced.vert')
-rw-r--r-- | examples/qt3d/instanced-arrays-qml/gl45/instanced.vert | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/examples/qt3d/instanced-arrays-qml/gl45/instanced.vert b/examples/qt3d/instanced-arrays-qml/gl45/instanced.vert new file mode 100644 index 000000000..bf3ba165b --- /dev/null +++ b/examples/qt3d/instanced-arrays-qml/gl45/instanced.vert @@ -0,0 +1,57 @@ +#version 450 core + +layout(location = 0) in vec3 vertexPosition; +layout(location = 1) in vec3 vertexNormal; +layout(location = 2) in vec3 pos; + +layout(location = 0) out vec3 position; +layout(location = 1) out vec3 normal; +layout(location = 2) out vec3 kd; + +layout(std140, binding = 1) uniform qt3d_command_uniforms { + mat4 modelMatrix; + mat4 inverseModelMatrix; + mat4 modelViewMatrix; + mat3 modelNormalMatrix; + mat4 inverseModelViewMatrix; + mat4 modelViewProjection; + mat4 inverseModelViewProjectionMatrix; +}; + +// Calculate RGB triplet from HSV +vec3 hsvToRGB( float h, float s, float v ) +{ + if ( s <= 0.0 ) + return vec3( v ); + + h = h * 6.0; + float c = v * s; + float x = ( 1.0 - abs( ( mod( h, 2 ) - 1 ) ) ) * c; + float m = v - c; + float r = 0.0; + float g = 0.0; + float b = 0.0; + + if ( h < 1.0 ) { r = c; g = x; b = 0.0;} + else if ( h < 2.0 ) { r = x; g = c; b = 0.0; } + else if ( h < 3.0 ) { r = 0.0; g = c; b = x; } + else if ( h < 4.0 ) { r = 0.0; g = x; b = c; } + else if ( h < 5.0 ) { r = x; g = 0.0; b = c; } + else { r = c; g = 0.0; b = x; } + + return vec3( r + m, g + m, b + m ); +} + +void main() +{ + normal = normalize( modelNormalMatrix * vertexNormal ); + + vec3 offsetPos = vertexPosition + pos; + position = vec3(modelViewMatrix * vec4(offsetPos, 1.0)); + + float hue = fract( pos.x / 10.0 ); + float saturation = fract( pos.z / 20.0 ); + kd = hsvToRGB( hue, saturation, 1.0 ); + + gl_Position = modelViewProjection * vec4(offsetPos, 1.0); +} |