mirror of
https://github.com/PixelGuys/Cubyz.git
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2f3a25dfb3
* Draw a thicker bounding box * Draw an actual 3d model for the selection box. This is done using a line model with a cubiod offset model.
85 lines
1.8 KiB
GLSL
85 lines
1.8 KiB
GLSL
#version 460
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layout(location = 0) out vec3 mvVertexPos;
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layout(location = 0) uniform mat4 projectionMatrix;
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layout(location = 1) uniform mat4 viewMatrix;
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layout(location = 2) uniform vec3 modelPosition;
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layout(location = 3) uniform vec3 lowerBounds;
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layout(location = 4) uniform vec3 upperBounds;
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layout(location = 5) uniform float lineSize;
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vec3 offsetVertices[] = vec3[] (
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vec3(-1, -1, -1),
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vec3(-1, -1, 1),
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vec3(-1, 1, -1),
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vec3(-1, 1, 1),
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vec3(1, -1, -1),
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vec3(1, -1, 1),
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vec3(1, 1, -1),
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vec3(1, 1, 1),
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vec3(-1, -1, -1),
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vec3(-1, -1, 1),
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vec3(1, -1, -1),
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vec3(1, -1, 1),
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vec3(-1, 1, -1),
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vec3(-1, 1, 1),
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vec3(1, 1, -1),
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vec3(1, 1, 1),
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vec3(-1, -1, -1),
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vec3(-1, 1, -1),
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vec3(1, -1, -1),
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vec3(1, 1, -1),
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vec3(-1, -1, 1),
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vec3(-1, 1, 1),
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vec3(1, -1, 1),
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vec3(1, 1, 1)
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);
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vec3 lineVertices[] = vec3[] (
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vec3(0, 0, 0),
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vec3(0, 0, 1),
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vec3(0, 1, 0),
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vec3(0, 1, 1),
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vec3(1, 0, 0),
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vec3(1, 0, 1),
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vec3(1, 1, 0),
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vec3(1, 1, 1),
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vec3(0, 0, 0),
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vec3(0, 1, 0),
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vec3(0, 0, 1),
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vec3(0, 1, 1),
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vec3(1, 0, 0),
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vec3(1, 1, 0),
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vec3(1, 0, 1),
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vec3(1, 1, 1),
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vec3(0, 0, 0),
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vec3(1, 0, 0),
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vec3(0, 0, 1),
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vec3(1, 0, 1),
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vec3(0, 1, 0),
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vec3(1, 1, 0),
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vec3(0, 1, 1),
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vec3(1, 1, 1)
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);
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void main() {
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int vertexIndex = gl_VertexID%24;
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int lineIndex = gl_VertexID/24;
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vec3 lineStart = lineVertices[lineIndex*2];
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vec3 lineEnd = lineVertices[lineIndex*2 + 1];
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vec3 lineCenter = (lineStart + lineEnd)/2*(upperBounds - lowerBounds);
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vec3 offsetVector = vec3(lineSize);
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offsetVector += vec3(notEqual(lineStart, lineEnd))*(upperBounds.x - lowerBounds.x)/2;
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vec3 vertexPos = lineCenter + offsetVertices[vertexIndex]*offsetVector;
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vec4 mvPos = viewMatrix*vec4(lowerBounds + vertexPos + modelPosition, 1);
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gl_Position = projectionMatrix*mvPos;
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mvVertexPos = mvPos.xyz;
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}
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